Merge remote-tracking branch 'upstream/master'

185 files changed, 51677 insertions, 0 deletions

diff --git a/jam-files/boost-build/boost-build.jam b/jam-files/boost-build/boost-build.jam
new file mode 100644
index 00000000..73db0497
--- /dev/null
+++ b/jam-files/boost-build/boost-build.jam
@@ -0,0 +1,8 @@
+# Copyright 2001, 2002 Dave Abrahams
+# Copyright 2002 Rene Rivera
+# Copyright 2003 Vladimir Prus
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+
+boost-build kernel ;
diff --git a/jam-files/boost-build/bootstrap.jam b/jam-files/boost-build/bootstrap.jam
new file mode 100644
index 00000000..af3e8bf5
--- /dev/null
+++ b/jam-files/boost-build/bootstrap.jam
@@ -0,0 +1,18 @@
+#  Copyright (c) 2003 Vladimir Prus.
+#
+#  Use, modification and distribution is subject to the Boost Software
+#  License Version 1.0. (See accompanying file LICENSE_1_0.txt or
+#  http://www.boost.org/LICENSE_1_0.txt)
+
+# This file handles initial phase of Boost.Build loading.
+# Boost.Jam has already figured out where Boost.Build is
+# and loads this file, which is responsible for initialization
+# of basic facilities such a module system and loading the
+# main Boost.Build module, build-system.jam.
+#
+# Exact operation of this module is not interesting, it makes
+# sense to look at build-system.jam right away.
+
+# Load the kernel/bootstrap.jam, which does all the work.
+.bootstrap-file = $(.bootstrap-file:D)/kernel/bootstrap.jam ;
+include $(.bootstrap-file) ;
\ No newline at end of file
diff --git a/jam-files/boost-build/build-system.jam b/jam-files/boost-build/build-system.jam
new file mode 100644
index 00000000..9f9c884c
--- /dev/null
+++ b/jam-files/boost-build/build-system.jam
@@ -0,0 +1,1008 @@
+# Copyright 2003, 2005, 2007 Dave Abrahams
+# Copyright 2006, 2007 Rene Rivera
+# Copyright 2003, 2004, 2005, 2006 Vladimir Prus
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+# This file is part of Boost Build version 2. You can think of it as forming the
+# main() routine. It is invoked by the bootstrapping code in bootstrap.jam.
+
+import build-request ;
+import builtin ;
+import "class" : new ;
+import errors ;
+import feature ;
+import make ;
+import modules ;
+import os ;
+import path ;
+import project ;
+import property-set ;
+import regex ;
+import sequence ;
+import targets ;
+import toolset ;
+import utility ;
+import version ;
+import virtual-target ;
+import generators ;
+import configure ;
+
+################################################################################
+#
+# Module global data.
+#
+################################################################################
+
+# Shortcut used in this module for accessing used command-line parameters.
+.argv = [ modules.peek : ARGV ] ;
+
+# Flag indicating we should display additional debugging information related to
+# locating and loading Boost Build configuration files.
+.debug-config = [ MATCH ^(--debug-configuration)$ : $(.argv) ] ;
+
+# Legacy option doing too many things, some of which are not even documented.
+# Should be phased out.
+#   * Disables loading site and user configuration files.
+#   * Disables auto-configuration for toolsets specified explicitly on the
+#     command-line.
+#   * Causes --toolset command-line options to be ignored.
+#   * Prevents the default toolset from being used even if no toolset has been
+#     configured at all.
+.legacy-ignore-config = [ MATCH ^(--ignore-config)$ : $(.argv) ] ;
+
+# The cleaning is tricky. Say, if user says 'bjam --clean foo' where 'foo' is a
+# directory, then we want to clean targets which are in 'foo' as well as those
+# in any children Jamfiles under foo but not in any unrelated Jamfiles. To
+# achieve this we collect a list of projects under which cleaning is allowed.
+.project-targets = ;
+
+# Virtual targets obtained when building main targets references on the command
+# line. When running 'bjam --clean main_target' we want to clean only files
+# belonging to that main target so we need to record which targets are produced
+# for it.
+.results-of-main-targets = ;
+
+# Was an XML dump requested?
+.out-xml = [ MATCH ^--out-xml=(.*)$ : $(.argv) ] ;
+
+# Default toolset & version to be used in case no other toolset has been used
+# explicitly by either the loaded configuration files, the loaded project build
+# scripts or an explicit toolset request on the command line. If not specified,
+# an arbitrary default will be used based on the current host OS. This value,
+# while not strictly necessary, has been added to allow testing Boost-Build's
+# default toolset usage functionality.
+.default-toolset = ;
+.default-toolset-version = ;
+
+
+################################################################################
+#
+# Public rules.
+#
+################################################################################
+
+# Returns the property set with the free features from the currently processed
+# build request.
+#
+rule command-line-free-features ( )
+{
+    return $(.command-line-free-features) ;
+}
+
+
+# Returns the location of the build system. The primary use case is building
+# Boost where it is sometimes needed to get the location of other components
+# (e.g. BoostBook files) and it is convenient to use locations relative to the
+# Boost Build path.
+#
+rule location ( )
+{
+    local r = [ modules.binding build-system ] ;
+    return $(r:P) ;
+}
+
+
+# Sets the default toolset & version to be used in case no other toolset has
+# been used explicitly by either the loaded configuration files, the loaded
+# project build scripts or an explicit toolset request on the command line. For
+# more detailed information see the comment related to used global variables.
+#
+rule set-default-toolset ( toolset : version ? )
+{
+    .default-toolset = $(toolset) ;
+    .default-toolset-version = $(version) ;
+}
+
+rule set-pre-build-hook ( function )
+{
+    .pre-build-hook = $(function) ;
+}
+
+rule set-post-build-hook ( function )
+{
+    .post-build-hook = $(function) ;
+}
+
+################################################################################
+#
+# Local rules.
+#
+################################################################################
+
+# Returns actual Jam targets to be used for executing a clean request.
+#
+local rule actual-clean-targets ( )
+{
+    # Construct a list of projects explicitly detected as targets on this build
+    # system run. These are the projects under which cleaning is allowed.
+    for local t in $(targets)
+    {
+        if [ class.is-a $(t) : project-target ]
+        {
+            .project-targets += [ $(t).project-module ] ;
+        }
+    }
+
+    # Construct a list of targets explicitly detected on this build system run
+    # as a result of building main targets.
+    local targets-to-clean ;
+    for local t in $(.results-of-main-targets)
+    {
+        # Do not include roots or sources.
+        targets-to-clean += [ virtual-target.traverse $(t) ] ;
+    }
+    targets-to-clean = [ sequence.unique $(targets-to-clean) ] ;
+
+    local to-clean ;
+    for local t in [ virtual-target.all-targets ]
+    {
+        local p = [ $(t).project ] ;
+
+        # Remove only derived targets.
+        if [ $(t).action ]
+        {
+            if $(t) in $(targets-to-clean) ||
+                [ should-clean-project [ $(p).project-module ] ] = true
+            {
+                to-clean += $(t) ;
+            }
+        }
+    }
+
+    local to-clean-actual ;
+    for local t in $(to-clean)
+    {
+        to-clean-actual += [ $(t).actualize ] ;
+    }
+    return $(to-clean-actual) ;
+}
+
+
+# Given a target id, try to find and return the corresponding target. This is
+# only invoked when there is no Jamfile in ".". This code somewhat duplicates
+# code in project-target.find but we can not reuse that code without a
+# project-targets instance.
+#
+local rule find-target ( target-id )
+{
+    local split = [ MATCH (.*)//(.*) : $(target-id) ] ;
+
+    local pm ;
+    if $(split)
+    {
+        pm = [ project.find $(split[1]) : "." ] ;
+    }
+    else
+    {
+        pm = [ project.find $(target-id) : "." ] ;
+    }
+
+    local result ;
+    if $(pm)
+    {
+        result = [ project.target $(pm) ] ;
+    }
+
+    if $(split)
+    {
+        result = [ $(result).find $(split[2]) ] ;
+    }
+
+    return $(result) ;
+}
+
+
+# Initializes a new configuration module.
+#
+local rule initialize-config-module ( module-name : location ? )
+{
+    project.initialize $(module-name) : $(location) ;
+    if USER_MODULE in [ RULENAMES ]
+    {
+        USER_MODULE $(module-name) ;
+    }
+}
+
+
+# Helper rule used to load configuration files. Loads the first configuration
+# file with the given 'filename' at 'path' into module with name 'module-name'.
+# Not finding the requested file may or may not be treated as an error depending
+# on the must-find parameter. Returns a normalized path to the loaded
+# configuration file or nothing if no file was loaded.
+#
+local rule load-config ( module-name : filename : path + : must-find ? )
+{
+    if $(.debug-config)
+    {
+        ECHO "notice: Searching" "$(path)" "for" "$(module-name)"
+            "configuration file" "$(filename)" "." ;
+    }
+    local where = [ GLOB $(path) : $(filename) ] ;
+    if $(where)
+    {
+        where = [ NORMALIZE_PATH $(where[1]) ] ;
+        if $(.debug-config)
+        {
+            ECHO "notice: Loading" "$(module-name)" "configuration file"
+                "$(filename)" "from" $(where) "." ;
+        }
+
+        # Set source location so that path-constant in config files
+        # with relative paths work. This is of most importance
+        # for project-config.jam, but may be used in other
+        # config files as well.
+        local attributes = [ project.attributes $(module-name) ] ;
+        $(attributes).set source-location : $(where:D) : exact ;
+        modules.load $(module-name) : $(filename) : $(path) ;
+        project.load-used-projects $(module-name) ;
+    }
+    else
+    {
+        if $(must-find)
+        {
+            errors.user-error "Configuration file" "$(filename)" "not found in"
+                "$(path)" "." ;
+        }
+        if $(.debug-config)
+        {
+            ECHO "notice:" "Configuration file" "$(filename)" "not found in"
+                "$(path)" "." ;
+        }
+    }
+    return $(where) ;
+}
+
+
+# Loads all the configuration files used by Boost Build in the following order:
+#
+#   -- test-config --
+#   Loaded only if specified on the command-line using the --test-config
+# command-line parameter. It is ok for this file not to exist even if specified.
+# If this configuration file is loaded, regular site and user configuration
+# files will not be. If a relative path is specified, file is searched for in
+# the current folder.
+#
+#   -- site-config --
+#   Always named site-config.jam. Will only be found if located on the system
+# root path (Windows), /etc (non-Windows), user's home folder or the Boost Build
+# path, in that order. Not loaded in case the test-config configuration file is
+# loaded or either the --ignore-site-config or the --ignore-config command-line
+# option is specified.
+#
+#   -- user-config --
+#   Named user-config.jam by default or may be named explicitly using the
+# --user-config command-line option or the BOOST_BUILD_USER_CONFIG environment
+# variable. If named explicitly the file is looked for from the current working
+# directory and if the default one is used then it is searched for in the
+# user's home directory and the Boost Build path, in that order. Not loaded in
+# case either the test-config configuration file is loaded, --ignore-config
+# command-line option is specified or an empty file name is explicitly
+# specified. If the file name has been given explicitly then the file must
+# exist.
+#
+# Test configurations have been added primarily for use by Boost Build's
+# internal unit testing system but may be used freely in other places as well.
+#
+local rule load-configuration-files
+{
+    # Flag indicating that site configuration should not be loaded.
+    local ignore-site-config =
+        [ MATCH ^(--ignore-site-config)$ : $(.argv) ] ;
+
+    if $(.legacy-ignore-config) && $(.debug-config)
+    {
+        ECHO "notice: Regular site and user configuration files will be ignored" ;
+        ECHO "notice: due to the --ignore-config command-line option." ;
+    }
+
+    initialize-config-module test-config ;
+    local test-config = [ MATCH ^--test-config=(.*)$ : $(.argv) ] ;
+    local uq = [ MATCH \"(.*)\" : $(test-config) ] ;
+    if $(uq)
+    {
+        test-config = $(uq) ;
+    }
+    if $(test-config)
+    {
+        local where =
+            [ load-config test-config : $(test-config:BS) : $(test-config:D) ] ;
+        if $(where)
+        {
+            if $(.debug-config) && ! $(.legacy-ignore-config)
+            {
+                ECHO "notice: Regular site and user configuration files will" ;
+                ECHO "notice: be ignored due to the test configuration being"
+                    "loaded." ;
+            }
+        }
+        else
+        {
+            test-config = ;
+        }
+    }
+
+    local user-path = [ os.home-directories ] [ os.environ BOOST_BUILD_PATH ] ;
+    local site-path = /etc $(user-path) ;
+    if [ os.name ] in NT CYGWIN
+    {
+        site-path = [ modules.peek : SystemRoot ] $(user-path) ;
+    }
+
+    if $(ignore-site-config) && !$(.legacy-ignore-config)
+    {
+        ECHO "notice: Site configuration files will be ignored due to the" ;
+        ECHO "notice: --ignore-site-config command-line option." ;
+    }
+
+    initialize-config-module site-config ;
+    if ! $(test-config) && ! $(ignore-site-config) && ! $(.legacy-ignore-config)
+    {
+        load-config site-config : site-config.jam : $(site-path) ;
+    }
+
+    initialize-config-module user-config ;
+    if ! $(test-config) && ! $(.legacy-ignore-config)
+    {
+        local user-config = [ MATCH ^--user-config=(.*)$ : $(.argv) ] ;
+        user-config = $(user-config[-1]) ;
+        user-config ?= [ os.environ BOOST_BUILD_USER_CONFIG ] ;
+        # Special handling for the case when the OS does not strip the quotes
+        # around the file name, as is the case when using Cygwin bash.
+        user-config = [ utility.unquote $(user-config) ] ;
+        local explicitly-requested = $(user-config) ;
+        user-config ?= user-config.jam ;
+
+        if $(user-config)
+        {
+            if $(explicitly-requested)
+            {
+                # Treat explicitly entered user paths as native OS path
+                # references and, if non-absolute, root them at the current
+                # working directory.
+                user-config = [ path.make $(user-config) ] ;
+                user-config = [ path.root $(user-config) [ path.pwd ] ] ;
+                user-config = [ path.native $(user-config) ] ;
+
+                if $(.debug-config)
+                {
+                    ECHO "notice: Loading explicitly specified user"
+                        "configuration file:" ;
+                    ECHO "    $(user-config)" ;
+                }
+
+                load-config user-config : $(user-config:BS) : $(user-config:D)
+                    : must-exist ;
+            }
+            else
+            {
+                load-config user-config : $(user-config) : $(user-path) ;
+            }
+        }
+        else if $(.debug-config)
+        {
+            ECHO "notice: User configuration file loading explicitly disabled." ;
+        }
+    }
+        
+    # We look for project-config.jam from "." upward.
+    # I am not sure this is 100% right decision, we might as well check for
+    # it only alonside the Jamroot file. However:
+    #
+    # - We need to load project-root.jam before Jamroot
+    # - We probably would need to load project-root.jam even if there's no
+    #   Jamroot - e.g. to implement automake-style out-of-tree builds.
+    local file = [ path.glob "." : project-config.jam ] ;
+    if ! $(file)
+    {
+        file = [ path.glob-in-parents "." : project-config.jam ] ;
+    }
+    if $(file)
+    {
+        initialize-config-module project-config : $(file:D) ;
+        load-config project-config : project-config.jam : $(file:D) ;        
+    }   
+}
+
+
+# Autoconfigure toolsets based on any instances of --toolset=xx,yy,...zz or
+# toolset=xx,yy,...zz in the command line. May return additional properties to
+# be processed as if they had been specified by the user.
+#
+local rule process-explicit-toolset-requests
+{
+    local extra-properties ;
+
+    local option-toolsets  = [ regex.split-list [ MATCH ^--toolset=(.*)$ : $(.argv) ] : "," ] ;
+    local feature-toolsets = [ regex.split-list [ MATCH   ^toolset=(.*)$ : $(.argv) ] : "," ] ;
+
+    for local t in $(option-toolsets) $(feature-toolsets)
+    {
+        # Parse toolset-version/properties.
+        local (t-v,t,v) = [ MATCH (([^-/]+)-?([^/]+)?)/?.* : $(t) ] ;
+        local toolset-version = $((t-v,t,v)[1]) ;
+        local toolset = $((t-v,t,v)[2]) ;
+        local version = $((t-v,t,v)[3]) ;
+
+        if $(.debug-config)
+        {
+            ECHO notice: [cmdline-cfg] Detected command-line request for
+                $(toolset-version): "toolset=" $(toolset) "version="
+                $(version) ;
+        }
+
+        # If the toolset is not known, configure it now.
+        local known ;
+        if $(toolset) in [ feature.values <toolset> ]
+        {
+            known = true ;
+        }
+        if $(known) && $(version) && ! [ feature.is-subvalue toolset
+            : $(toolset) : version : $(version) ]
+        {
+            known = ;
+        }
+        # TODO: we should do 'using $(toolset)' in case no version has been
+        # specified and there are no versions defined for the given toolset to
+        # allow the toolset to configure its default version. For this we need
+        # to know how to detect whether a given toolset has any versions
+        # defined. An alternative would be to do this whenever version is not
+        # specified but that would require that toolsets correctly handle the
+        # case when their default version is configured multiple times which
+        # should be checked for all existing toolsets first.
+
+        if ! $(known)
+        {
+            if $(.debug-config)
+            {
+                ECHO "notice: [cmdline-cfg] toolset $(toolset-version) not"
+                    "previously configured; attempting to auto-configure now" ;
+            }
+            toolset.using $(toolset) : $(version) ;
+        }
+        else
+        {
+            if $(.debug-config)
+            {
+                ECHO notice: [cmdline-cfg] toolset $(toolset-version) already
+                    configured ;
+            }
+        }
+
+        # Make sure we get an appropriate property into the build request in
+        # case toolset has been specified using the "--toolset=..." command-line
+        # option form.
+        if ! $(t) in $(.argv) && ! $(t) in $(feature-toolsets)
+        {
+            if $(.debug-config)
+            {
+                ECHO notice: [cmdline-cfg] adding toolset=$(t) to the build
+                    request. ;
+            }
+            extra-properties += toolset=$(t) ;
+        }
+    }
+
+    return $(extra-properties) ;
+}
+
+
+# Returns 'true' if the given 'project' is equal to or is a (possibly indirect)
+# child to any of the projects requested to be cleaned in this build system run.
+# Returns 'false' otherwise. Expects the .project-targets list to have already
+# been constructed.
+#
+local rule should-clean-project ( project )
+{
+    if ! $(.should-clean-project.$(project))
+    {
+        local r = false ;
+        if $(project) in $(.project-targets)
+        {
+            r = true ;
+        }
+        else
+        {
+            local parent = [ project.attribute $(project) parent-module ] ;
+            if $(parent) && $(parent) != user-config
+            {
+                r = [ should-clean-project $(parent) ] ;
+            }
+        }
+        .should-clean-project.$(project) = $(r) ;
+    }
+
+    return $(.should-clean-project.$(project)) ;
+}
+
+
+################################################################################
+#
+# main()
+# ------
+#
+################################################################################
+
+{    
+    if --version in $(.argv)
+    {
+        version.print ;
+        EXIT ;
+    }
+    
+    version.verify-engine-version ;    
+    
+    load-configuration-files ;
+
+    local extra-properties ;
+    # Note that this causes --toolset options to be ignored if --ignore-config
+    # is specified.
+    if ! $(.legacy-ignore-config)
+    {
+        extra-properties = [ process-explicit-toolset-requests ] ;
+    }
+
+
+    # We always load project in "." so that 'use-project' directives have any
+    # chance of being seen. Otherwise, we would not be able to refer to
+    # subprojects using target ids.
+    local current-project ;
+    if [ project.find "." : "." ]
+    {
+        current-project = [ project.target [ project.load "." ] ] ;
+    }
+
+
+    # In case there are no toolsets currently defined makes the build run using
+    # the default toolset.
+    if ! $(.legacy-ignore-config) && ! [ feature.values <toolset> ]
+    {
+        local default-toolset = $(.default-toolset) ;
+        local default-toolset-version = ;
+        if $(default-toolset)
+        {
+            default-toolset-version = $(.default-toolset-version) ;
+        }
+        else
+        {
+            default-toolset = gcc ;
+            if [ os.name ] = NT
+            {
+                default-toolset = msvc ;
+            }
+            else if [ os.name ] = MACOSX
+            {
+                default-toolset = darwin ;
+            }                        
+        }
+
+        ECHO "warning: No toolsets are configured." ;
+        ECHO "warning: Configuring default toolset" \"$(default-toolset)\". ;
+        ECHO "warning: If the default is wrong, your build may not work correctly." ;
+        ECHO "warning: Use the \"toolset=xxxxx\" option to override our guess." ;
+        ECHO "warning: For more configuration options, please consult" ;
+        ECHO "warning: http://boost.org/boost-build2/doc/html/bbv2/advanced/configuration.html" ;
+
+        toolset.using $(default-toolset) : $(default-toolset-version) ;
+    }
+
+
+    # Parse command line for targets and properties. Note that this requires
+    # that all project files already be loaded.
+    local build-request = [ build-request.from-command-line $(.argv)
+        $(extra-properties) ] ;
+    local target-ids = [ $(build-request).get-at 1 ] ;
+    local properties = [ $(build-request).get-at 2 ] ;
+
+
+    # Expand properties specified on the command line into multiple property
+    # sets consisting of all legal property combinations. Each expanded property
+    # set will be used for a single build run. E.g. if multiple toolsets are
+    # specified then requested targets will be built with each of them.
+    if $(properties)
+    {
+        expanded = [ build-request.expand-no-defaults $(properties) ] ;
+        local xexpanded ;
+        for local e in $(expanded)
+        {
+            xexpanded += [ property-set.create [ feature.split $(e) ] ] ;
+        }
+        expanded = $(xexpanded) ;
+    }
+    else
+    {
+        expanded = [ property-set.empty ] ;
+    }
+
+
+    # Check that we actually found something to build.
+    if ! $(current-project) && ! $(target-ids)
+    {
+        errors.user-error "error: no Jamfile in current directory found, and no"
+            "target references specified." ;
+        EXIT ;
+    }
+
+
+    # Flags indicating that this build system run has been started in order to
+    # clean existing instead of create new targets. Note that these are not the
+    # final flag values as they may get changed later on due to some special
+    # targets being specified on the command line.
+    local clean    ; if "--clean"     in $(.argv) { clean    = true ; }
+    local cleanall ; if "--clean-all" in $(.argv) { cleanall = true ; }
+
+
+    # List of explicitly requested files to build. Any target references read
+    # from the command line parameter not recognized as one of the targets
+    # defined in the loaded Jamfiles will be interpreted as an explicitly
+    # requested file to build. If any such files are explicitly requested then
+    # only those files and the targets they depend on will be built and they
+    # will be searched for among targets that would have been built had there
+    # been no explicitly requested files.
+    local explicitly-requested-files
+
+
+    # List of Boost Build meta-targets, virtual-targets and actual Jam targets
+    # constructed in this build system run.
+    local targets ;
+    local virtual-targets ;
+    local actual-targets ;
+
+
+    # Process each target specified on the command-line and convert it into
+    # internal Boost Build target objects. Detect special clean target. If no
+    # main Boost Build targets were explictly requested use the current project
+    # as the target.
+    for local id in $(target-ids)
+    {
+        if $(id) = clean
+        {
+            clean = true ;
+        }
+        else
+        {
+            local t ;
+            if $(current-project)
+            {
+                t = [ $(current-project).find $(id) : no-error ] ;
+            }
+            else
+            {
+                t = [ find-target $(id) ] ;
+            }
+
+            if ! $(t)
+            {
+                ECHO "notice: could not find main target" $(id) ;
+                ECHO "notice: assuming it is a name of file to create." ;
+                explicitly-requested-files += $(id) ;
+            }
+            else
+            {
+                targets += $(t) ;
+            }
+        }
+    }
+    if ! $(targets)
+    {
+        targets += [ project.target [ project.module-name "." ] ] ;
+    }
+    
+    if [ option.get dump-generators : : true ] 
+    {
+        generators.dump ;
+    }
+    
+    # We wish to put config.log in the build directory corresponding
+    # to Jamroot, so that the location does not differ depending on
+    # directory where we do build.  The amount of indirection necessary
+    # here is scary.
+    local first-project = [ $(targets[0]).project ] ;
+    local first-project-root-location = [ $(first-project).get project-root ] ;
+    local first-project-root-module = [ project.load $(first-project-root-location) ] ;
+    local first-project-root = [ project.target  $(first-project-root-module) ] ;
+    local first-build-build-dir = [ $(first-project-root).build-dir ] ;
+    configure.set-log-file $(first-build-build-dir)/config.log ;
+    
+    # Now that we have a set of targets to build and a set of property sets to
+    # build the targets with, we can start the main build process by using each
+    # property set to generate virtual targets from all of our listed targets
+    # and any of their dependants.
+    for local p in $(expanded)
+    {
+        .command-line-free-features = [ property-set.create [ $(p).free ] ] ;
+        for local t in $(targets)
+        {
+            local g = [ $(t).generate $(p) ] ;
+            if ! [ class.is-a $(t) : project-target ]
+            {
+                .results-of-main-targets += $(g[2-]) ;
+            }
+            virtual-targets += $(g[2-]) ;
+        }
+    }
+
+
+    # Convert collected virtual targets into actual raw Jam targets.
+    for t in $(virtual-targets)
+    {
+        actual-targets += [ $(t).actualize ] ;
+    }
+
+
+    # If XML data output has been requested prepare additional rules and targets
+    # so we can hook into Jam to collect build data while its building and have
+    # it trigger the final XML report generation after all the planned targets
+    # have been built.
+    if $(.out-xml)
+    {
+        # Get a qualified virtual target name.
+        rule full-target-name ( target )
+        {
+            local name = [ $(target).name ] ;
+            local project = [ $(target).project ] ;
+            local project-path = [ $(project).get location ] ;
+            return $(project-path)//$(name) ;
+        }
+
+        # Generate an XML file containing build statistics for each constituent.
+        #
+        rule out-xml ( xml-file : constituents * )
+        {
+            # Prepare valid XML header and footer with some basic info.
+            local nl = "
+" ;
+            local os        = [ modules.peek : OS OSPLAT JAMUNAME ] "" ;
+            local timestamp = [ modules.peek : JAMDATE ] ;
+            local cwd       = [ PWD ] ;
+            local command   = $(.argv) ;
+            local bb-version = [ version.boost-build ] ;
+            .header on $(xml-file) =
+                "<?xml version=\"1.0\" encoding=\"utf-8\"?>"
+                "$(nl)<build format=\"1.0\" version=\"$(bb-version)\">"
+                "$(nl)  <os name=\"$(os[1])\" platform=\"$(os[2])\"><![CDATA[$(os[3-]:J= )]]></os>"
+                "$(nl)  <timestamp><![CDATA[$(timestamp)]]></timestamp>"
+                "$(nl)  <directory><![CDATA[$(cwd)]]></directory>"
+                "$(nl)  <command><![CDATA[\"$(command:J=\" \")\"]]></command>"
+                ;
+            .footer on $(xml-file) =
+                "$(nl)</build>" ;
+
+            # Generate the target dependency graph.
+            .contents on $(xml-file) +=
+                "$(nl)  <targets>" ;
+            for local t in [ virtual-target.all-targets ]
+            {
+                local action = [ $(t).action ] ;
+                if $(action)
+                    # If a target has no action, it has no dependencies.
+                {
+                    local name = [ full-target-name $(t) ] ;
+                    local sources = [ $(action).sources ] ;
+                    local dependencies ;
+                    for local s in $(sources)
+                    {
+                        dependencies += [ full-target-name $(s) ] ;
+                    }
+
+                    local path = [ $(t).path ] ;
+                    local jam-target = [ $(t).actual-name ] ;
+
+                    .contents on $(xml-file) +=
+                        "$(nl)    <target>"
+                        "$(nl)      <name><![CDATA[$(name)]]></name>"
+                        "$(nl)      <dependencies>"
+                        "$(nl)        <dependency><![CDATA[$(dependencies)]]></dependency>"
+                        "$(nl)      </dependencies>"
+                        "$(nl)      <path><![CDATA[$(path)]]></path>"
+                        "$(nl)      <jam-target><![CDATA[$(jam-target)]]></jam-target>"
+                        "$(nl)    </target>"
+                        ;
+                }
+            }
+            .contents on $(xml-file) +=
+                "$(nl)  </targets>" ;
+
+            # Build $(xml-file) after $(constituents). Do so even if a
+            # constituent action fails and regenerate the xml on every bjam run.
+            INCLUDES $(xml-file) : $(constituents) ;
+            ALWAYS $(xml-file) ;
+            __ACTION_RULE__ on $(xml-file) = build-system.out-xml.generate-action ;
+            out-xml.generate $(xml-file) ;
+        }
+
+        # The actual build actions are here; if we did this work in the actions
+        # clause we would have to form a valid command line containing the
+        # result of @(...) below (the name of the XML file).
+        #
+        rule out-xml.generate-action ( args * : xml-file
+            : command status start end user system : output ? )
+        {
+            local contents =
+                [ on $(xml-file) return $(.header) $(.contents) $(.footer) ] ;
+            local f = @($(xml-file):E=$(contents)) ;
+        }
+
+        # Nothing to do here; the *real* actions happen in
+        # out-xml.generate-action.
+        actions quietly out-xml.generate { }
+
+        # Define the out-xml file target, which depends on all the targets so
+        # that it runs the collection after the targets have run.
+        out-xml $(.out-xml) : $(actual-targets) ;
+
+        # Set up a global __ACTION_RULE__ that records all the available
+        # statistics about each actual target in a variable "on" the --out-xml
+        # target.
+        #
+        rule out-xml.collect ( xml-file : target : command status start end user
+            system : output ? )
+        {
+            local nl = "
+" ;
+            # Open the action with some basic info.
+            .contents on $(xml-file) +=
+                "$(nl)  <action status=\"$(status)\" start=\"$(start)\" end=\"$(end)\" user=\"$(user)\" system=\"$(system)\">" ;
+
+            # If we have an action object we can print out more detailed info.
+            local action = [ on $(target) return $(.action) ] ;
+            if $(action)
+            {
+                local action-name    = [ $(action).action-name ] ;
+                local action-sources = [ $(action).sources     ] ;
+                local action-props   = [ $(action).properties  ] ;
+
+                # The qualified name of the action which we created the target.
+                .contents on $(xml-file) +=
+                    "$(nl)    <name><![CDATA[$(action-name)]]></name>" ;
+
+                # The sources that made up the target.
+                .contents on $(xml-file) +=
+                    "$(nl)    <sources>" ;
+                for local source in $(action-sources)
+                {
+                    local source-actual = [ $(source).actual-name ] ;
+                    .contents on $(xml-file) +=
+                        "$(nl)      <source><![CDATA[$(source-actual)]]></source>" ;
+                }
+                .contents on $(xml-file) +=
+                    "$(nl)    </sources>" ;
+
+                # The properties that define the conditions under which the
+                # target was built.
+                .contents on $(xml-file) +=
+                    "$(nl)    <properties>" ;
+                for local prop in [ $(action-props).raw ]
+                {
+                    local prop-name = [ MATCH ^<(.*)>$ : $(prop:G) ] ;
+                    .contents on $(xml-file) +=
+                        "$(nl)      <property name=\"$(prop-name)\"><![CDATA[$(prop:G=)]]></property>" ;
+                }
+                .contents on $(xml-file) +=
+                    "$(nl)    </properties>" ;
+            }
+
+            local locate = [ on $(target) return $(LOCATE) ] ;
+            locate ?= "" ;
+            .contents on $(xml-file) +=
+                "$(nl)    <jam-target><![CDATA[$(target)]]></jam-target>"
+                "$(nl)    <path><![CDATA[$(target:G=:R=$(locate))]]></path>"
+                "$(nl)    <command><![CDATA[$(command)]]></command>"
+                "$(nl)    <output><![CDATA[$(output)]]></output>" ;
+            .contents on $(xml-file) +=
+                "$(nl)  </action>" ;
+        }
+
+        # When no __ACTION_RULE__ is set "on" a target, the search falls back to
+        # the global module.
+        module
+        {
+            __ACTION_RULE__ = build-system.out-xml.collect
+                [ modules.peek build-system : .out-xml ] ;
+        }
+        
+        IMPORT
+            build-system :
+            out-xml.collect
+            out-xml.generate-action
+            : :
+            build-system.out-xml.collect
+            build-system.out-xml.generate-action
+            ;
+    }
+
+    local j = [ option.get jobs ] ;
+    if $(j)
+    {
+        modules.poke : PARALLELISM : $(j) ;
+    }
+    
+    local k = [ option.get keep-going : true : true ] ;
+    if $(k) in "on" "yes" "true"
+    {
+        modules.poke : KEEP_GOING : 1 ;
+    }
+    else if $(k) in "off" "no" "false"
+    {
+        modules.poke : KEEP_GOING : 0 ;
+    }
+    else
+    {
+        ECHO "error: Invalid value for the --keep-going option" ;
+        EXIT ;
+    }
+                
+    # The 'all' pseudo target is not strictly needed expect in the case when we
+    # use it below but people often assume they always have this target
+    # available and do not declare it themselves before use which may cause
+    # build failures with an error message about not being able to build the
+    # 'all' target.
+    NOTFILE all ;
+
+    # And now that all the actual raw Jam targets and all the dependencies
+    # between them have been prepared all that is left is to tell Jam to update
+    # those targets.
+    if $(explicitly-requested-files)
+    {
+        # Note that this case can not be joined with the regular one when only
+        # exact Boost Build targets are requested as here we do not build those
+        # requested targets but only use them to construct the dependency tree
+        # needed to build the explicitly requested files.
+        UPDATE $(explicitly-requested-files:G=e) $(.out-xml) ;
+    }
+    else if $(cleanall)
+    {
+        UPDATE clean-all ;
+    }
+    else if $(clean)
+    {
+        common.Clean clean : [ actual-clean-targets ] ;
+        UPDATE clean ;
+    }
+    else
+    {      
+        configure.print-configure-checks-summary ;        
+        
+        if $(.pre-build-hook)
+        {
+            $(.pre-build-hook) ;
+        }
+        
+        DEPENDS all : $(actual-targets) ;
+        if UPDATE_NOW in [ RULENAMES ]
+        {            
+            local ok = [ UPDATE_NOW all $(.out-xml) ] ;
+            if $(.post-build-hook)
+            {
+                $(.post-build-hook) $(ok) ;
+            }
+            # Prevent automatic update of the 'all' target, now that
+            # we have explicitly updated what we wanted.
+            UPDATE ;
+        }
+        else
+        {
+            UPDATE all $(.out-xml) ;
+        }            
+    }
+}
diff --git a/jam-files/boost-build/build/__init__.py b/jam-files/boost-build/build/__init__.py
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/jam-files/boost-build/build/__init__.py
diff --git a/jam-files/boost-build/build/ac.jam b/jam-files/boost-build/build/ac.jam
new file mode 100644
index 00000000..6768f358
--- /dev/null
+++ b/jam-files/boost-build/build/ac.jam
@@ -0,0 +1,198 @@
+# Copyright (c) 2010 Vladimir Prus.
+#
+# Use, modification and distribution is subject to the Boost Software
+# License Version 1.0. (See accompanying file LICENSE_1_0.txt or
+# http://www.boost.org/LICENSE_1_0.txt)
+
+import property-set ;
+import path ;
+import modules ;
+import "class" ; 
+import errors ;
+import configure ;
+
+rule find-include-path ( variable : properties : header 
+    : provided-path ? )
+{
+    # FIXME: document which properties affect this function by
+    # default.
+    local target-os = [ $(properties).get <target-os> ] ;
+    properties = [ property-set.create <target-os>$(toolset) ] ;    
+    if $($(variable)-$(properties))
+    {
+        return $($(variable)-$(properties)) ;
+    }
+    else
+    {
+        provided-path ?= [ modules.peek : $(variable) ] ;
+        includes = $(provided-path) ;
+        includes += [ $(properties).get <include> ] ;
+        if [ $(properties).get <target-os> ] != windows
+        {
+            # FIXME: use sysroot
+            includes += /usr/include ;
+        }
+        
+        local result ;
+        while ! $(result) && $(includes)
+        {            
+            local f = [ path.root $(header) $(includes[1]) ] ;
+            ECHO "Checking " $(f) ;
+            if [ path.exists $(f) ]
+            {
+                result = $(includes[1]) ;
+            }
+            else if $(provided-path)
+            {
+                errors.user-error "Could not find header" $(header)
+                  : "in the user-specified directory" $(provided-path) ;
+            }            
+            includes = $(includes[2-]) ;                
+        }        
+        $(variable)-$(properties) = $(result) ;
+        return $(result) ;
+    }        
+}
+
+rule find-library ( variable : properties : names + : provided-path ? )
+{
+    local target-os = [ $(properties).get <target-os> ] ;
+    properties = [ property-set.create <target-os>$(toolset) ] ;
+    if $($(variable)-$(properties))
+    {
+        return $($(variable)-$(properties)) ;
+    }
+    else
+    {
+        provided-path ?= [ modules.peek : $(variable) ] ;
+        paths = $(provided-path) ;
+        paths += [ $(properties).get <library-path> ] ;
+        if [ $(properties).get <target-os> ] != windows
+        {
+            paths += /usr/lib /usr/lib32 /usr/lib64 ;
+        }
+        
+        local result ;               
+        while ! $(result) && $(paths)
+        {   
+            while ! $(result) && $(names)
+            {
+                local f ;
+                if $(target-os) = windows
+                {         
+                    f = $(paths[1])/$(names[1]).lib ;                
+                    if [ path.exists $(f) ] 
+                    {
+                        result = $(f) ;
+                    }
+                }
+                else
+                {
+                    # FIXME: check for .a as well, depending on
+                    # the 'link' feature.
+                    f = $(paths[1])/lib$(names[1]).so ;                
+                    ECHO "CHECKING $(f) " ;
+                    if [ path.exists $(f) ] 
+                    {
+                        result = $(f) ;
+                    }
+                }
+                if ! $(result) && $(provided-path)
+                {
+                    errors.user-error "Could not find either of: " $(names)
+                      : "in the user-specified directory" $(provided-path) ;
+                    
+                }                
+                names = $(names[2-]) ;
+            }
+            paths = $(paths[2-]) ;
+        }        
+        $(variable)-$(properties) = $(result) ;
+        return $(result) ;
+    }
+}
+
+class ac-library : basic-target
+{
+    import errors ;
+    import indirect ;
+    import virtual-target ;
+    import ac ;
+    import configure ;
+
+    rule __init__ ( name : project : * : * )
+    {
+        basic-target.__init__ $(name) : $(project) : $(sources)
+          : $(requirements) ;
+        
+        reconfigure $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ; 
+    }
+    
+    rule set-header ( header )
+    {
+        self.header = $(header) ; 
+    }
+        
+    rule set-default-names ( names + )
+    {
+        self.default-names = $(names) ;
+    }
+        
+    rule reconfigure ( * : * )
+    {
+        ECHO "XXX" $(1) ;
+        if ! $(1)
+        {
+            # This is 'using xxx ;'. Nothing to configure, really.
+        }
+        else
+        {
+            for i in 1 2 3 4 5 6 7 8 9             
+            {
+                # FIXME: this naming is inconsistent with XXX_INCLUDE/XXX_LIBRARY
+                if ! ( $($(i)[1]) in root include-path library-path library-name condition )
+                {
+                    errors.user-error "Invalid named parameter" $($(i)[1]) ;
+                }   
+                local name = $($(i)[1]) ;
+                local value = $($(i)[2-]) ;
+                if $($(name)) && $($(name)) != $(value)
+                {
+                    errors.user-error "Attempt to change value of '$(name)'" ;
+                }
+                $(name) = $(value) ;
+            }
+            
+            include-path ?= $(root)/include ;
+            library-path ?= $(root)/lib ;            
+        }        
+    }
+    
+    rule construct ( name : sources * : property-set )
+    {
+        # FIXME: log results.
+        local libnames = $(library-name) ;
+        if ! $(libnames) && ! $(include-path) && ! $(library-path)
+        {
+            libnames = [ modules.peek : $(name:U)_NAME ] ;
+            # Backward compatibility only.
+            libnames ?= [ modules.peek : $(name:U)_BINARY ] ;
+        }
+        libnames ?= $(self.default-names) ;
+                        
+        local includes = [ 
+          ac.find-include-path $(name:U)_INCLUDE : $(property-set) : $(self.header) : $(include-path) ] ;
+        local library = [ ac.find-library $(name:U)_LIBRARY : $(property-set) : $(libnames) : $(library-path) ] ;
+        if $(includes) && $(library)
+        {
+            library = [ virtual-target.from-file $(library) : . : $(self.project) ] ;
+            configure.log-library-search-result $(name) : "found" ;
+            return [ property-set.create <include>$(includes) <source>$(library) ] ;
+        }
+        else
+        {
+            configure.log-library-search-result $(name) : "no found" ;
+        }        
+    }
+}
+
diff --git a/jam-files/boost-build/build/alias.jam b/jam-files/boost-build/build/alias.jam
new file mode 100644
index 00000000..48019cb9
--- /dev/null
+++ b/jam-files/boost-build/build/alias.jam
@@ -0,0 +1,73 @@
+# Copyright 2003, 2004, 2006 Vladimir Prus
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+# This module defines the 'alias' rule and the associated target class.
+#
+# Alias is just a main target which returns its source targets without any
+# processing. For example:
+#
+#   alias bin : hello test_hello ;
+#   alias lib : helpers xml_parser ;
+#
+# Another important use of 'alias' is to conveniently group source files:
+#
+#   alias platform-src : win.cpp : <os>NT ;
+#   alias platform-src : linux.cpp : <os>LINUX ;
+#   exe main : main.cpp platform-src ;
+#
+# Lastly, it is possible to create a local alias for some target, with different
+# properties:
+#
+#   alias big_lib : : @/external_project/big_lib/<link>static ;
+#
+
+import "class" : new ;
+import project ;
+import property-set ;
+import targets ;
+
+
+class alias-target-class : basic-target
+{
+    rule __init__ ( name : project : sources * : requirements *
+        : default-build * : usage-requirements * )
+    {
+        basic-target.__init__ $(name) : $(project) : $(sources) :
+            $(requirements) : $(default-build) : $(usage-requirements) ;
+    }
+
+    rule construct ( name : source-targets * : property-set )
+    {
+        return [ property-set.empty ] $(source-targets) ;
+    }
+
+    rule compute-usage-requirements ( subvariant )
+    {
+        local base = [ basic-target.compute-usage-requirements $(subvariant) ] ;
+        return [ $(base).add [ $(subvariant).sources-usage-requirements ] ] ;
+    }
+}
+
+
+# Declares the 'alias' target. It will process its sources virtual-targets by
+# returning them unaltered as its own constructed virtual-targets.
+#
+rule alias ( name : sources * : requirements * : default-build * :
+    usage-requirements * )
+{
+    local project = [ project.current ] ;
+
+    targets.main-target-alternative
+        [ new alias-target-class $(name) : $(project)
+            : [ targets.main-target-sources $(sources) : $(name) : no-renaming ]
+            : [ targets.main-target-requirements $(requirements) : $(project) ]
+            : [ targets.main-target-default-build $(default-build) : $(project)
+                ]
+            : [ targets.main-target-usage-requirements $(usage-requirements) :
+                $(project) ]
+        ] ;
+}
+
+
+IMPORT $(__name__) : alias : : alias ;
diff --git a/jam-files/boost-build/build/alias.py b/jam-files/boost-build/build/alias.py
new file mode 100644
index 00000000..575e5360
--- /dev/null
+++ b/jam-files/boost-build/build/alias.py
@@ -0,0 +1,63 @@
+# Copyright 2003, 2004, 2006 Vladimir Prus 
+# Distributed under the Boost Software License, Version 1.0. 
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) 
+
+# Status: ported (danielw)
+# Base revision: 56043
+
+#  This module defines the 'alias' rule and associated class.
+#
+#  Alias is just a main target which returns its source targets without any 
+#  processing. For example::
+#
+#    alias bin : hello test_hello ;
+#    alias lib : helpers xml_parser ;
+#
+#  Another important use of 'alias' is to conveniently group source files::
+#
+#    alias platform-src : win.cpp : <os>NT ;
+#    alias platform-src : linux.cpp : <os>LINUX ;
+#    exe main : main.cpp platform-src ;
+# 
+#  Lastly, it's possible to create local alias for some target, with different
+#  properties::
+#
+#    alias big_lib : : @/external_project/big_lib/<link>static ;
+#
+
+import targets
+import property_set
+from b2.manager import get_manager
+
+from b2.util import metatarget
+
+class AliasTarget(targets.BasicTarget):
+
+    def __init__(self, *args):
+        targets.BasicTarget.__init__(self, *args)
+
+    def construct(self, name, source_targets, properties):
+        return [property_set.empty(), source_targets]
+
+    def compute_usage_requirements(self, subvariant):
+        base = targets.BasicTarget.compute_usage_requirements(self, subvariant)
+        # Add source's usage requirement. If we don't do this, "alias" does not
+        # look like 100% alias.
+        return base.add(subvariant.sources_usage_requirements())
+
+@metatarget
+def alias(name, sources=[], requirements=[], default_build=[], usage_requirements=[]):
+
+    project = get_manager().projects().current()
+    targets = get_manager().targets()
+
+    targets.main_target_alternative(AliasTarget(
+        name, project,
+        targets.main_target_sources(sources, name, no_renaming=True),
+        targets.main_target_requirements(requirements or [], project),
+        targets.main_target_default_build(default_build, project),
+        targets.main_target_usage_requirements(usage_requirements or [], project)))
+
+# Declares the 'alias' target. It will build sources, and return them unaltered.
+get_manager().projects().add_rule("alias", alias)
+
diff --git a/jam-files/boost-build/build/build-request.jam b/jam-files/boost-build/build/build-request.jam
new file mode 100644
index 00000000..8a1f7b0e
--- /dev/null
+++ b/jam-files/boost-build/build/build-request.jam
@@ -0,0 +1,322 @@
+# Copyright 2002 Dave Abrahams
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+import "class" : new ;
+import sequence ;
+import set ;
+import regex ;
+import feature ;
+import property ;
+import container ;
+import string ;
+
+
+# Transform property-set by applying f to each component property.
+#
+local rule apply-to-property-set ( f property-set )
+{
+    local properties = [ feature.split $(property-set) ] ;
+    return [ string.join [ $(f) $(properties) ] : / ] ;
+}
+
+
+# Expand the given build request by combining all property-sets which do not
+# specify conflicting non-free features. Expects all the project files to
+# already be loaded.
+#
+rule expand-no-defaults ( property-sets * )
+{
+    # First make all features and subfeatures explicit.
+    local expanded-property-sets = [ sequence.transform apply-to-property-set
+        feature.expand-subfeatures : $(property-sets) ] ;
+
+    # Now combine all of the expanded property-sets
+    local product = [ x-product $(expanded-property-sets) : $(feature-space) ] ;
+
+    return $(product) ;
+}
+
+
+# Implementation of x-product, below. Expects all the project files to already
+# be loaded.
+#
+local rule x-product-aux ( property-sets + )
+{
+    local result ;
+    local p = [ feature.split $(property-sets[1]) ] ;
+    local f = [ set.difference $(p:G) : [ feature.free-features ] ] ;
+    local seen ;
+    # No conflict with things used at a higher level?
+    if ! [ set.intersection $(f) : $(x-product-used) ]
+    {
+        local x-product-seen ;
+        {
+            # Do not mix in any conflicting features.
+            local x-product-used = $(x-product-used) $(f) ;
+
+            if $(property-sets[2])
+            {
+                local rest = [ x-product-aux $(property-sets[2-]) : $(feature-space) ] ;
+                result = $(property-sets[1])/$(rest) ;
+            }
+
+            result ?= $(property-sets[1]) ;
+        }
+
+        # If we did not encounter a conflicting feature lower down, do not
+        # recurse again.
+        if ! [ set.intersection $(f) : $(x-product-seen) ]
+        {
+            property-sets = ;
+        }
+
+        seen = $(x-product-seen) ;
+    }
+
+    if $(property-sets[2])
+    {
+        result += [ x-product-aux $(property-sets[2-]) : $(feature-space) ] ;
+    }
+
+    # Note that we have seen these features so that higher levels will recurse
+    # again without them set.
+    x-product-seen += $(f) $(seen) ;
+    return $(result) ;
+}
+
+
+# Return the cross-product of all elements of property-sets, less any that would
+# contain conflicting values for single-valued features. Expects all the project
+# files to already be loaded.
+#
+local rule x-product ( property-sets * )
+{
+    if $(property-sets).non-empty
+    {
+        # Prepare some "scoped globals" that can be used by the implementation
+        # function, x-product-aux.
+        local x-product-seen x-product-used ;
+        return [ x-product-aux $(property-sets) : $(feature-space) ] ;
+    }
+    # Otherwise return empty.
+}
+
+
+# Returns true if either 'v' or the part of 'v' before the first '-' symbol is
+# an implicit value. Expects all the project files to already be loaded.
+#
+local rule looks-like-implicit-value ( v )
+{
+    if [ feature.is-implicit-value $(v) ]
+    {
+        return true ;
+    }
+    else
+    {
+        local split = [ regex.split $(v) - ] ;
+        if [ feature.is-implicit-value $(split[1]) ]
+        {
+            return true ;
+        }
+    }
+}
+
+
+# Takes the command line tokens (such as taken from the ARGV rule) and
+# constructs a build request from them. Returns a vector of two vectors (where
+# "vector" means container.jam's "vector"). First is the set of targets
+# specified in the command line, and second is the set of requested build
+# properties. Expects all the project files to already be loaded.
+#
+rule from-command-line ( command-line * )
+{
+    local targets ;
+    local properties ;
+
+    command-line = $(command-line[2-]) ;
+    local skip-next = ;
+    for local e in $(command-line)
+    {
+        if $(skip-next)
+        {
+            skip-next = ;
+        }
+        else if ! [ MATCH "^(-).*" : $(e) ]
+        {
+            # Build request spec either has "=" in it or completely consists of
+            # implicit feature values.
+            local fs = feature-space ;
+            if [ MATCH "(.*=.*)" : $(e) ]
+                || [ looks-like-implicit-value $(e:D=) : $(feature-space) ]
+            {
+                properties += [ convert-command-line-element $(e) :
+                    $(feature-space) ] ;
+            }
+            else
+            {
+                targets += $(e) ;
+            }
+        }
+        else if [ MATCH "^(-[-ldjfsto])$" : $(e) ]
+        {
+            skip-next = true ;
+        }
+    }
+    return [ new vector
+        [ new vector $(targets) ]
+        [ new vector $(properties) ] ] ;
+}
+
+
+# Converts one element of command line build request specification into internal
+# form. Expects all the project files to already be loaded.
+#
+local rule convert-command-line-element ( e )
+{
+    local result ;
+    local parts = [ regex.split $(e) "/" ] ;
+    while $(parts)
+    {
+        local p = $(parts[1]) ;
+        local m = [ MATCH "([^=]*)=(.*)" : $(p) ] ;
+        local lresult ;
+        local feature ;
+        local values ;
+        if $(m)
+        {
+            feature = $(m[1]) ;
+            values = [ regex.split $(m[2]) "," ] ;
+            lresult = <$(feature)>$(values) ;
+        }
+        else
+        {
+            lresult = [ regex.split $(p) "," ] ;
+        }
+        
+        if $(feature) && free in [ feature.attributes $(feature) ]
+        {
+            # If we have free feature, then the value is everything
+            # until the end of the command line token. Slashes in
+            # the following string are not taked to mean separation
+            # of properties. Commas are also not interpreted specially.
+            values = $(values:J=,) ;
+            values = $(values) $(parts[2-]) ;
+            values = $(values:J=/) ;
+            lresult = <$(feature)>$(values) ;
+            parts = ;
+        }
+        
+        if ! [ MATCH (.*-.*) : $(p) ]
+        {
+            # property.validate cannot handle subfeatures, so we avoid the check
+            # here.
+            for local p in $(lresult)
+            {
+                property.validate $(p) : $(feature-space) ;
+            }
+        }
+
+        if ! $(result)
+        {
+            result = $(lresult) ;
+        }
+        else
+        {
+            result = $(result)/$(lresult) ;
+        }
+        
+        parts = $(parts[2-]) ;
+    }
+
+    return $(result) ;
+}
+
+
+rule __test__ ( )
+{
+    import assert ;
+    import feature ;
+
+    feature.prepare-test build-request-test-temp ;
+
+    import build-request ;
+    import build-request : expand-no-defaults : build-request.expand-no-defaults ;
+    import errors : try catch ;
+    import feature : feature subfeature ;
+
+    feature toolset : gcc msvc borland : implicit ;
+    subfeature toolset gcc : version : 2.95.2 2.95.3 2.95.4
+      3.0 3.0.1 3.0.2 : optional ;
+
+    feature variant : debug release : implicit composite ;
+    feature inlining : on off ;
+    feature "include" : : free ;
+
+    feature stdlib : native stlport : implicit ;
+
+    feature runtime-link : dynamic static : symmetric ;
+
+    # Empty build requests should expand to empty.
+    assert.result
+        : build-request.expand-no-defaults ;
+
+    assert.result
+        <toolset>gcc/<toolset-gcc:version>3.0.1/<stdlib>stlport/<variant>debug
+        <toolset>msvc/<stdlib>stlport/<variant>debug
+        <toolset>msvc/<variant>debug
+        : build-request.expand-no-defaults gcc-3.0.1/stlport msvc/stlport msvc debug ;
+
+    assert.result
+        <toolset>gcc/<toolset-gcc:version>3.0.1/<stdlib>stlport/<variant>debug
+        <toolset>msvc/<variant>debug
+        <variant>debug/<toolset>msvc/<stdlib>stlport
+        : build-request.expand-no-defaults gcc-3.0.1/stlport msvc debug msvc/stlport ;
+
+    assert.result
+        <toolset>gcc/<toolset-gcc:version>3.0.1/<stdlib>stlport/<variant>debug/<inlining>off
+        <toolset>gcc/<toolset-gcc:version>3.0.1/<stdlib>stlport/<variant>release/<inlining>off
+        : build-request.expand-no-defaults gcc-3.0.1/stlport debug release <inlining>off ;
+
+    assert.result
+        <include>a/b/c/<toolset>gcc/<toolset-gcc:version>3.0.1/<stdlib>stlport/<variant>debug/<include>x/y/z
+        <include>a/b/c/<toolset>msvc/<stdlib>stlport/<variant>debug/<include>x/y/z
+        <include>a/b/c/<toolset>msvc/<variant>debug/<include>x/y/z
+        : build-request.expand-no-defaults <include>a/b/c gcc-3.0.1/stlport msvc/stlport msvc debug  <include>x/y/z ;
+
+    local r ;
+
+    r = [ build-request.from-command-line bjam debug runtime-link=dynamic ] ;
+    assert.equal [ $(r).get-at 1 ] : ;
+    assert.equal [ $(r).get-at 2 ] : debug <runtime-link>dynamic ;
+
+    try ;
+    {
+        build-request.from-command-line bjam gcc/debug runtime-link=dynamic/static ;
+    }
+    catch \"static\" is not a value of an implicit feature ;
+
+    r = [ build-request.from-command-line bjam -d2 --debug debug target runtime-link=dynamic ] ;
+    assert.equal [ $(r).get-at 1 ] : target ;
+    assert.equal [ $(r).get-at 2 ] : debug <runtime-link>dynamic ;
+
+    r = [ build-request.from-command-line bjam debug runtime-link=dynamic,static ] ;
+    assert.equal [ $(r).get-at 1 ] : ;
+    assert.equal [ $(r).get-at 2 ] : debug <runtime-link>dynamic <runtime-link>static ;
+
+    r = [ build-request.from-command-line bjam debug gcc/runtime-link=dynamic,static ] ;
+    assert.equal [ $(r).get-at 1 ] : ;
+    assert.equal [ $(r).get-at 2 ] : debug gcc/<runtime-link>dynamic
+        gcc/<runtime-link>static ;
+
+    r = [ build-request.from-command-line bjam msvc gcc,borland/runtime-link=static ] ;
+    assert.equal [ $(r).get-at 1 ] : ;
+    assert.equal [ $(r).get-at 2 ] : msvc gcc/<runtime-link>static
+        borland/<runtime-link>static ;
+
+    r = [ build-request.from-command-line bjam gcc-3.0 ] ;
+    assert.equal [ $(r).get-at 1 ] : ;
+    assert.equal [ $(r).get-at 2 ] : gcc-3.0 ;
+
+    feature.finish-test build-request-test-temp ;
+}
diff --git a/jam-files/boost-build/build/build_request.py b/jam-files/boost-build/build/build_request.py
new file mode 100644
index 00000000..cc9f2400
--- /dev/null
+++ b/jam-files/boost-build/build/build_request.py
@@ -0,0 +1,216 @@
+# Status: being ported by Vladimir Prus
+# TODO: need to re-compare with mainline of .jam
+# Base revision: 40480
+#
+#  (C) Copyright David Abrahams 2002. Permission to copy, use, modify, sell and
+#  distribute this software is granted provided this copyright notice appears in
+#  all copies. This software is provided "as is" without express or implied
+#  warranty, and with no claim as to its suitability for any purpose.
+
+import b2.build.feature
+feature = b2.build.feature
+
+from b2.util.utility import *
+import b2.build.property_set as property_set
+
+def expand_no_defaults (property_sets):
+    """ Expand the given build request by combining all property_sets which don't
+        specify conflicting non-free features.
+    """
+    # First make all features and subfeatures explicit
+    expanded_property_sets = [ps.expand_subfeatures() for ps in property_sets]
+    
+    # Now combine all of the expanded property_sets
+    product = __x_product (expanded_property_sets)
+    
+    return [property_set.create(p) for p in product]
+
+
+def __x_product (property_sets):
+    """ Return the cross-product of all elements of property_sets, less any
+        that would contain conflicting values for single-valued features.
+    """
+    x_product_seen = set()
+    return __x_product_aux (property_sets, x_product_seen)[0]
+
+def __x_product_aux (property_sets, seen_features):
+    """Returns non-conflicting combinations of property sets.
+
+    property_sets is a list of PropertySet instances. seen_features is a set of Property
+    instances.
+
+    Returns a tuple of:
+    - list of lists of Property instances, such that within each list, no two Property instance
+    have the same feature, and no Property is for feature in seen_features.
+    - set of features we saw in property_sets      
+    """
+    if not property_sets:
+        return ([], set())
+
+    properties = property_sets[0].all()
+
+    these_features = set()
+    for p in property_sets[0].non_free():
+        these_features.add(p.feature())
+
+    # Note: the algorithm as implemented here, as in original Jam code, appears to
+    # detect conflicts based on features, not properties. For example, if command
+    # line build request say:
+    #
+    # <a>1/<b>1 c<1>/<b>1
+    #
+    # It will decide that those two property sets conflict, because they both specify
+    # a value for 'b' and will not try building "<a>1 <c1> <b1>", but rather two
+    # different property sets. This is a topic for future fixing, maybe.
+    if these_features & seen_features:
+
+        (inner_result, inner_seen) = __x_product_aux(property_sets[1:], seen_features)
+        return (inner_result, inner_seen | these_features)
+
+    else:
+
+        result = []
+        (inner_result, inner_seen) = __x_product_aux(property_sets[1:], seen_features | these_features)
+        if inner_result:
+            for inner in inner_result:
+                result.append(properties + inner)
+        else:
+            result.append(properties)
+        
+        if inner_seen & these_features:
+            # Some of elements in property_sets[1:] conflict with elements of property_sets[0],
+            # Try again, this time omitting elements of property_sets[0]
+            (inner_result2, inner_seen2) = __x_product_aux(property_sets[1:], seen_features)
+            result.extend(inner_result2)
+
+        return (result, inner_seen | these_features)
+
+    
+
+def looks_like_implicit_value(v):
+    """Returns true if 'v' is either implicit value, or
+    the part before the first '-' symbol is implicit value."""
+    if feature.is_implicit_value(v):
+        return 1
+    else:
+        split = v.split("-")
+        if feature.is_implicit_value(split[0]):
+            return 1
+
+    return 0
+
+def from_command_line(command_line):
+    """Takes the command line tokens (such as taken from ARGV rule)
+    and constructs build request from it. Returns a list of two
+    lists. First is the set of targets specified in the command line,
+    and second is the set of requested build properties."""
+
+    targets = []
+    properties = []
+
+    for e in command_line:
+        if e[0] != "-":
+            # Build request spec either has "=" in it, or completely
+            # consists of implicit feature values.
+            if e.find("=") != -1 or looks_like_implicit_value(e.split("/")[0]):                
+                properties += convert_command_line_element(e)
+            else:
+                targets.append(e)
+
+    return [targets, properties]
+ 
+# Converts one element of command line build request specification into
+# internal form.
+def convert_command_line_element(e):
+
+    result = None
+    parts = e.split("/")
+    for p in parts:
+        m = p.split("=")
+        if len(m) > 1:
+            feature = m[0]
+            values = m[1].split(",")
+            lresult = [("<%s>%s" % (feature, v)) for v in values]
+        else:
+            lresult = p.split(",")
+            
+        if p.find('-') == -1:
+            # FIXME: first port property.validate
+            # property.validate cannot handle subfeatures,
+            # so we avoid the check here.
+            #for p in lresult:
+            #    property.validate(p)
+            pass
+
+        if not result:
+            result = lresult
+        else:
+            result = [e1 + "/" + e2 for e1 in result for e2 in lresult]
+
+    return [property_set.create(b2.build.feature.split(r)) for r in result]
+
+### 
+### rule __test__ ( )
+### {
+###     import assert feature ;
+###     
+###     feature.prepare-test build-request-test-temp ;
+###     
+###     import build-request ;
+###     import build-request : expand_no_defaults : build-request.expand_no_defaults ;
+###     import errors : try catch ;
+###     import feature : feature subfeature ;
+### 
+###     feature toolset : gcc msvc borland : implicit ;
+###     subfeature toolset gcc : version : 2.95.2 2.95.3 2.95.4
+###       3.0 3.0.1 3.0.2 : optional ;
+### 
+###     feature variant : debug release : implicit composite ;
+###     feature inlining : on off ;
+###     feature "include" : : free ;
+### 
+###     feature stdlib : native stlport : implicit ;
+### 
+###     feature runtime-link : dynamic static : symmetric ;
+### 
+### 
+###     local r ;
+### 
+###     r = [ build-request.from-command-line bjam debug runtime-link=dynamic ] ;              
+###     assert.equal [ $(r).get-at 1 ] : ;
+###     assert.equal [ $(r).get-at 2 ] : debug <runtime-link>dynamic ;
+### 
+###     try ;
+###     {
+### 
+###         build-request.from-command-line bjam gcc/debug runtime-link=dynamic/static ;
+###     }
+###     catch \"static\" is not a value of an implicit feature ;
+### 
+### 
+###     r = [ build-request.from-command-line bjam -d2 --debug debug target runtime-link=dynamic ] ;
+###     assert.equal [ $(r).get-at 1 ] : target ;
+###     assert.equal [ $(r).get-at 2 ] : debug <runtime-link>dynamic ;
+### 
+###     r = [ build-request.from-command-line bjam debug runtime-link=dynamic,static ] ;
+###     assert.equal [ $(r).get-at 1 ] : ;
+###     assert.equal [ $(r).get-at 2 ] : debug <runtime-link>dynamic <runtime-link>static ;
+### 
+###     r = [ build-request.from-command-line bjam debug gcc/runtime-link=dynamic,static ] ;
+###     assert.equal [ $(r).get-at 1 ] : ;
+###     assert.equal [ $(r).get-at 2 ] : debug gcc/<runtime-link>dynamic 
+###                  gcc/<runtime-link>static ;
+### 
+###     r = [ build-request.from-command-line bjam msvc gcc,borland/runtime-link=static ] ;
+###     assert.equal [ $(r).get-at 1 ] : ;
+###     assert.equal [ $(r).get-at 2 ] : msvc gcc/<runtime-link>static 
+###                     borland/<runtime-link>static ;
+### 
+###     r = [ build-request.from-command-line bjam gcc-3.0 ] ;
+###     assert.equal [ $(r).get-at 1 ] : ;
+###     assert.equal [ $(r).get-at 2 ] : gcc-3.0 ;
+### 
+###     feature.finish-test build-request-test-temp ;
+### }
+### 
+### 
diff --git a/jam-files/boost-build/build/configure.jam b/jam-files/boost-build/build/configure.jam
new file mode 100644
index 00000000..14c1328a
--- /dev/null
+++ b/jam-files/boost-build/build/configure.jam
@@ -0,0 +1,237 @@
+# Copyright (c) 2010 Vladimir Prus.
+#
+# Use, modification and distribution is subject to the Boost Software
+# License Version 1.0. (See accompanying file LICENSE_1_0.txt or
+# http://www.boost.org/LICENSE_1_0.txt)
+
+# This module defines function to help with two main tasks:
+#
+# - Discovering build-time configuration for the purposes of adjusting
+#   build process.  
+# - Reporting what is built, and how it is configured.
+
+import targets ; 
+import errors ;
+import targets ;
+import sequence ;
+import property ;
+import property-set ;
+import "class" : new ;
+import common ;
+import path ;
+
+rule log-summary ( )
+{
+    
+}
+
+.width = 30 ;
+
+rule set-width ( width )
+{
+    .width = $(width) ;
+}
+
+# Declare that the components specified by the parameter exist.
+rule register-components ( components * )
+{
+    .components += $(components) ;
+}
+
+# Declare that the components specified by the parameters will
+# be build.
+rule components-building ( components * )
+{
+    .built-components += $(components) ;
+}
+
+# Report something about component configuration that the
+# user should better know.
+rule log-component-configuration ( component : message )
+{
+    # FIXME: implement per-property-set logs
+    .component-logs.$(component) += $(message) ;
+}
+
+
+
+rule log-check-result ( result )
+{
+    if ! $(.announced-checks)
+    {
+        ECHO "Performing configuration checks\n" ;
+        .announced-checks = 1 ;
+    }
+    
+    ECHO $(result) ;    
+    #.check-results += $(result) ;
+}
+
+rule log-library-search-result ( library : result )
+{
+    local x = [ PAD "    - $(library) : $(result)" : $(.width) ] ;
+    log-check-result "$(x)" ;
+}
+
+rule print-component-configuration ( )
+{
+    local c = [ sequence.unique $(.components) ] ;
+    
+    ECHO "\nComponent configuration:\n" ;
+    for c in $(.components)
+    {
+        local s ;
+        if $(c) in $(.built-components)
+        {
+            s = "building" ;
+        }
+        else
+        {
+            s = "not building" ;
+        }
+        ECHO [ PAD "    - $(c)" : $(.width) ] ": $(s)" ;
+        for local m in $(.component-logs.$(c))
+        {
+            ECHO "        -" $(m) ;
+        }        
+    }
+    ECHO ;
+}
+
+rule print-configure-checks-summary ( )
+{
+    # FIXME: the problem with that approach is tha
+    # the user sees checks summary when all checks are
+    # done, and has no progress reporting while the
+    # checks are being executed.    
+    if $(.check-results)
+    {        
+        ECHO "Configuration checks summary\n" ;
+    
+        for local r in $(.check-results)
+        {
+            ECHO $(r) ;
+        }
+        ECHO ;
+    }    
+}
+
+# Attempt to build a metatarget named by 'metatarget-reference'
+# in context of 'project' with properties 'ps'.
+# Returns non-empty value if build is OK.
+rule builds-raw ( metatarget-reference : project : ps : what : retry ? )
+{   
+    local result ;
+           
+    if ! $(retry) && ! $(.$(what)-tested.$(ps))
+    {        
+        .$(what)-tested.$(ps) = true ;
+        
+        local targets = [ targets.generate-from-reference 
+            $(metatarget-reference) : $(project) : $(ps) ] ;
+        
+        local jam-targets ;
+        for local t in $(targets[2-])
+        {
+            jam-targets += [ $(t).actualize ] ;
+        }
+                    
+        if ! UPDATE_NOW in [ RULENAMES ]
+        {
+            # Cannot determine. Assume existance.
+        }
+        else 
+        {           
+            local x = [ PAD "    - $(what)" : $(.width) ] ;            
+            if [ UPDATE_NOW $(jam-targets) :
+                 $(.log-fd) : ignore-minus-n : ignore-minus-q ] 
+            {
+                .$(what)-supported.$(ps) = yes ;
+                result = true ;
+                log-check-result "$(x) : yes" ;
+            }        
+            else
+            {
+                log-check-result "$(x) : no" ;
+            }
+        }        
+        return $(result) ;
+    }    
+    else
+    {
+        return $(.$(what)-supported.$(ps)) ;
+    }
+}
+
+rule builds ( metatarget-reference : properties * : what ? : retry ? )
+{
+    what ?= "$(metatarget-reference) builds" ;
+    
+    # FIXME: this should not be hardcoded. Other checks might
+    # want to consider different set of features as relevant.
+    local toolset = [ property.select <toolset> : $(properties) ] ;
+    local toolset-version-property = "<toolset-$(toolset:G=):version>" ;
+    local relevant = [ property.select <target-os> <toolset> $(toolset-version-property)
+      <address-model> <architecture>
+      : $(properties) ] ;
+    local ps = [ property-set.create $(relevant) ] ;        
+    local t = [ targets.current ] ;
+    local p = [ $(t).project ] ;
+
+    return [ builds-raw $(metatarget-reference) : $(p) : $(ps) : $(what) : $(retry) ] ;
+}
+
+
+# Called by Boost.Build startup code to specify name of a file
+# that will receive results of configure checks.  This
+# should never be called by users.
+rule set-log-file ( log-file )
+{
+    path.makedirs [ path.parent $(log-file) ] ;
+    
+    .log-fd = [ FILE_OPEN $(log-file) : "w" ] ;
+}
+
+# Frontend rules
+
+class check-target-builds-worker
+{
+    import configure ;
+    import property-set ;
+    import targets ;
+    import property ; 
+    
+    rule __init__ ( target message ? : true-properties * : false-properties * )    
+    {
+        self.target = $(target) ;
+        self.message = $(message) ;     
+        self.true-properties = $(true-properties) ;
+        self.false-properties = $(false-properties) ;
+    }
+        
+    rule check ( properties * )
+    {
+        local choosen ;
+        if [ configure.builds $(self.target) : $(properties) : $(self.message) ]
+        {
+            choosen = $(self.true-properties) ;
+        }        
+        else
+        {
+            choosen = $(self.false-properties) ;
+        }        
+        return [ property.evaluate-conditionals-in-context $(choosen) : $(properties) ] ;
+    }    
+}
+
+
+rule check-target-builds ( target message ? : true-properties * : false-properties * )
+{
+    local instance = [ new check-target-builds-worker $(target) $(message) : $(true-properties)
+      : $(false-properties) ] ;
+    return <conditional>@$(instance).check ;
+}
+
+IMPORT $(__name__) : check-target-builds :  : check-target-builds ;
+
+
diff --git a/jam-files/boost-build/build/configure.py b/jam-files/boost-build/build/configure.py
new file mode 100644
index 00000000..0426832c
--- /dev/null
+++ b/jam-files/boost-build/build/configure.py
@@ -0,0 +1,164 @@
+# Status: ported.
+# Base revison: 64488
+#
+# Copyright (c) 2010 Vladimir Prus.
+#
+# Use, modification and distribution is subject to the Boost Software
+# License Version 1.0. (See accompanying file LICENSE_1_0.txt or
+# http://www.boost.org/LICENSE_1_0.txt)
+
+# This module defines function to help with two main tasks:
+#
+# - Discovering build-time configuration for the purposes of adjusting
+#   build process.  
+# - Reporting what is built, and how it is configured.
+
+import b2.build.property as property
+import b2.build.property_set as property_set
+
+import b2.build.targets
+
+from b2.manager import get_manager
+from b2.util.sequence import unique
+from b2.util import bjam_signature, value_to_jam
+
+import bjam
+import os
+
+__width = 30
+
+def set_width(width):
+    global __width
+    __width = 30
+
+__components = []
+__built_components = []
+__component_logs = {}
+__announced_checks = False
+
+__log_file = None
+__log_fd = -1
+
+def register_components(components):
+    """Declare that the components specified by the parameter exist."""
+    __components.extend(components)
+    
+def components_building(components):
+    """Declare that the components specified by the parameters will be build."""
+    __built_components.extend(components)
+
+def log_component_configuration(component, message):
+    """Report something about component configuration that the user should better know."""
+    __component_logs.setdefault(component, []).append(message)
+
+def log_check_result(result):
+    global __announced_checks
+    if not __announced_checks:
+        print "Performing configuration checks"
+        __announced_checks = True
+
+    print result
+
+def log_library_search_result(library, result):
+    log_check_result(("    - %(library)s : %(result)s" % locals()).rjust(width))
+
+
+def print_component_configuration():
+
+    print "\nComponent configuration:"
+    for c in __components:
+        if c in __built_components:
+            s = "building"
+        else:
+            s = "not building"
+        message = "    - %s)" % c
+        message = message.rjust(__width)
+        message += " : " + s
+        for m in __component_logs.get(c, []):
+            print "        -" + m
+    print ""
+
+__builds_cache = {}
+
+def builds(metatarget_reference, project, ps, what):
+    # Attempt to build a metatarget named by 'metatarget-reference'
+    # in context of 'project' with properties 'ps'.
+    # Returns non-empty value if build is OK.
+
+    result = []
+
+    existing = __builds_cache.get((what, ps), None)
+    if existing is None:
+
+        result = False
+        __builds_cache[(what, ps)] = False
+
+        targets = b2.build.targets.generate_from_reference(
+            metatarget_reference, project, ps).targets()
+        jam_targets = []
+        for t in targets:
+            jam_targets.append(t.actualize())
+        
+        x = ("    - %s" % what).rjust(__width)
+        if bjam.call("UPDATE_NOW", jam_targets, str(__log_fd), "ignore-minus-n"):
+            __builds_cache[(what, ps)] = True
+            result = True
+            log_check_result("%s: yes" % x)
+        else:
+            log_check_result("%s: no" % x)
+
+        return result
+    else:
+        return existing
+
+def set_log_file(log_file_name):
+    # Called by Boost.Build startup code to specify name of a file
+    # that will receive results of configure checks.  This
+    # should never be called by users.
+    global __log_file, __log_fd
+    dirname = os.path.dirname(log_file_name)
+    if not os.path.exists(dirname):
+        os.makedirs(dirname)
+    # Make sure to keep the file around, so that it's not
+    # garbage-collected and closed
+    __log_file = open(log_file_name, "w")
+    __log_fd = __log_file.fileno()
+
+# Frontend rules
+
+class CheckTargetBuildsWorker:
+
+    def __init__(self, target, true_properties, false_properties):
+        self.target = target
+        self.true_properties = property.create_from_strings(true_properties, True)
+        self.false_properties = property.create_from_strings(false_properties, True)
+
+    def check(self, ps):
+        
+        # FIXME: this should not be hardcoded. Other checks might
+        # want to consider different set of features as relevant.
+        toolset = ps.get('toolset')[0]
+        toolset_version_property = "<toolset-" + toolset + ":version>" ;
+        relevant = ps.get_properties('target-os') + \
+                   ps.get_properties("toolset") + \
+                   ps.get_properties(toolset_version_property) + \
+                   ps.get_properties("address-model") + \
+                   ps.get_properties("architecture")
+        rps = property_set.create(relevant)
+        t = get_manager().targets().current()
+        p = t.project()        
+        if builds(self.target, p, rps, "%s builds" % self.target):
+            choosen = self.true_properties
+        else:
+            choosen = self.false_properties
+        return property.evaluate_conditionals_in_context(choosen, ps)
+
+@bjam_signature((["target"], ["true_properties", "*"], ["false_properties", "*"]))
+def check_target_builds(target, true_properties, false_properties):
+    worker = CheckTargetBuildsWorker(target, true_properties, false_properties)
+    value = value_to_jam(worker.check)
+    return "<conditional>" + value
+
+get_manager().projects().add_rule("check-target-builds", check_target_builds)
+
+
diff --git a/jam-files/boost-build/build/engine.py b/jam-files/boost-build/build/engine.py
new file mode 100644
index 00000000..be9736e0
--- /dev/null
+++ b/jam-files/boost-build/build/engine.py
@@ -0,0 +1,172 @@
+# Copyright Pedro Ferreira 2005.
+# Copyright Vladimir Prus 2007.
+# Distributed under the Boost
+# Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+bjam_interface = __import__('bjam')
+
+import operator
+import re
+
+import b2.build.property_set as property_set
+import b2.util
+
+class BjamAction:
+    """Class representing bjam action defined from Python."""
+    
+    def __init__(self, action_name, function):
+        self.action_name = action_name
+        self.function = function
+            
+    def __call__(self, targets, sources, property_set):
+        if self.function:
+            self.function(targets, sources, property_set)
+
+        # Bjam actions defined from Python have only the command
+        # to execute, and no associated jam procedural code. So
+        # passing 'property_set' to it is not necessary.
+        bjam_interface.call("set-update-action", self.action_name,
+                            targets, sources, [])
+
+class BjamNativeAction:
+    """Class representing bjam action defined by Jam code.
+
+    We still allow to associate a Python callable that will
+    be called when this action is installed on any target.
+    """
+    
+    def __init__(self, action_name, function):
+        self.action_name = action_name
+        self.function = function
+        
+    def __call__(self, targets, sources, property_set):
+        if self.function:
+            self.function(targets, sources, property_set)
+        
+        p = []
+        if property_set:
+            p = property_set.raw()
+
+        b2.util.set_jam_action(self.action_name, targets, sources, p)
+        
+action_modifiers = {"updated": 0x01,
+                    "together": 0x02,
+                    "ignore": 0x04,
+                    "quietly": 0x08,
+                    "piecemeal": 0x10,
+                    "existing": 0x20}
+
+class Engine:
+    """ The abstract interface to a build engine.
+
+    For now, the naming of targets, and special handling of some
+    target variables like SEARCH and LOCATE make this class coupled
+    to bjam engine.
+    """
+    def __init__ (self):
+        self.actions = {}
+
+    def add_dependency (self, targets, sources):
+        """Adds a dependency from 'targets' to 'sources'
+
+        Both 'targets' and 'sources' can be either list
+        of target names, or a single target name.
+        """
+        if isinstance (targets, str):
+            targets = [targets]
+        if isinstance (sources, str):
+            sources = [sources]
+
+        for target in targets:
+            for source in sources:
+                self.do_add_dependency (target, source)
+    
+    def set_target_variable (self, targets, variable, value, append=0):
+        """ Sets a target variable.
+
+        The 'variable' will be available to bjam when it decides
+        where to generate targets, and will also be available to
+        updating rule for that 'taret'.
+        """
+        if isinstance (targets, str): 
+            targets = [targets]
+
+        for target in targets:
+            self.do_set_target_variable (target, variable, value, append)
+
+    def set_update_action (self, action_name, targets, sources, properties=property_set.empty()):
+        """ Binds a target to the corresponding update action.
+            If target needs to be updated, the action registered
+            with action_name will be used.
+            The 'action_name' must be previously registered by
+            either 'register_action' or 'register_bjam_action'
+            method.
+        """
+        assert(isinstance(properties, property_set.PropertySet))
+        if isinstance (targets, str): 
+            targets = [targets]
+        self.do_set_update_action (action_name, targets, sources, properties)
+
+    def register_action (self, action_name, command, bound_list = [], flags = [],
+                         function = None):
+        """Creates a new build engine action.
+
+        Creates on bjam side an action named 'action_name', with
+        'command' as the command to be executed, 'bound_variables'
+        naming the list of variables bound when the command is executed
+        and specified flag.
+        If 'function' is not None, it should be a callable taking three
+        parameters:
+            - targets
+            - sources
+            - instance of the property_set class
+        This function will be called by set_update_action, and can
+        set additional target variables.
+        """
+        if self.actions.has_key(action_name):
+            raise "Bjam action %s is already defined" % action_name
+
+        assert(isinstance(flags, list))
+
+        bjam_flags = reduce(operator.or_,
+                            (action_modifiers[flag] for flag in flags), 0)
+
+        bjam_interface.define_action(action_name, command, bound_list, bjam_flags)
+
+        self.actions[action_name] = BjamAction(action_name, function)
+
+    def register_bjam_action (self, action_name, function=None):
+        """Informs self that 'action_name' is declared in bjam.
+
+        From this point, 'action_name' is a valid argument to the
+        set_update_action method. The action_name should be callable
+        in the global module of bjam.
+        """
+
+        # We allow duplicate calls to this rule for the same
+        # action name.  This way, jamfile rules that take action names
+        # can just register them without specially checking if
+        # action is already registered.
+        if not self.actions.has_key(action_name):
+            self.actions[action_name] = BjamNativeAction(action_name, function)
+    
+    # Overridables
+
+
+    def do_set_update_action (self, action_name, targets, sources, property_set):
+        action = self.actions.get(action_name)
+        if not action:
+            raise Exception("No action %s was registered" % action_name)
+        action(targets, sources, property_set)
+
+    def do_set_target_variable (self, target, variable, value, append):
+        if append:
+            bjam_interface.call("set-target-variable", target, variable, value, "true")
+        else:
+            bjam_interface.call("set-target-variable", target, variable, value)
+        
+    def do_add_dependency (self, target, source):
+        bjam_interface.call("DEPENDS", target, source)
+         
+        
diff --git a/jam-files/boost-build/build/errors.py b/jam-files/boost-build/build/errors.py
new file mode 100644
index 00000000..d9dceefe
--- /dev/null
+++ b/jam-files/boost-build/build/errors.py
@@ -0,0 +1,127 @@
+# Status: being written afresh by Vladimir Prus
+
+# Copyright 2007 Vladimir Prus 
+# Distributed under the Boost Software License, Version 1.0. 
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) 
+
+# This file is supposed to implement error reporting for Boost.Build.
+# Experience with jam version has shown that printing full backtrace
+# on each error is buffling. Further, for errors printed after parsing --
+# during target building, the stacktrace does not even mention what
+# target is being built.
+
+# This module implements explicit contexts -- where other code can
+# communicate which projects/targets are being built, and error
+# messages will show those contexts. For programming errors,
+# Python assertions are to be used.
+
+import bjam
+import traceback
+import sys
+
+def format(message, prefix=""):
+    parts = str(message).split("\n")
+    return "\n".join(prefix+p for p in parts)
+    
+
+class Context:
+
+    def __init__(self, message, nested=None):
+        self.message_ = message
+        self.nested_ = nested
+
+    def report(self, indent=""):
+        print indent + "    -", self.message_
+        if self.nested_:
+            print indent + "        declared at:"
+            for n in self.nested_:
+                n.report(indent + "    ")
+
+class JamfileContext:
+
+    def __init__(self):
+        raw = bjam.backtrace()
+        self.raw_ = raw
+
+    def report(self, indent=""):
+        for r in self.raw_:
+            print indent + "    - %s:%s" % (r[0], r[1])
+
+class ExceptionWithUserContext(Exception):
+
+    def __init__(self, message, context,
+                 original_exception=None, original_tb=None, stack=None):
+        Exception.__init__(self, message)
+        self.context_ = context
+        self.original_exception_ = original_exception
+        self.original_tb_ = original_tb
+        self.stack_ = stack
+
+    def report(self):
+        print "error:", self.args[0]
+        if self.original_exception_:
+            print format(str(self.original_exception_), "    ")
+        print
+        print "    error context (most recent first):"
+        for c in self.context_[::-1]:
+            c.report()
+        print
+        if "--stacktrace" in bjam.variable("ARGV"):
+            if self.original_tb_:
+                traceback.print_tb(self.original_tb_)
+            elif self.stack_:
+                for l in traceback.format_list(self.stack_):
+                    print l,                
+        else:
+            print "    use the '--stacktrace' option to get Python stacktrace"
+        print
+
+def user_error_checkpoint(callable):
+    def wrapper(self, *args):
+        errors = self.manager().errors()
+        try:
+            return callable(self, *args)
+        except ExceptionWithUserContext, e:
+            raise
+        except Exception, e:
+            errors.handle_stray_exception(e)
+        finally:
+            errors.pop_user_context()
+            
+    return wrapper
+                            
+class Errors:
+
+    def __init__(self):
+        self.contexts_ = []
+        self._count = 0
+
+    def count(self):
+        return self._count
+
+    def push_user_context(self, message, nested=None):
+        self.contexts_.append(Context(message, nested))
+
+    def pop_user_context(self):
+        del self.contexts_[-1]
+
+    def push_jamfile_context(self):
+        self.contexts_.append(JamfileContext())
+
+    def pop_jamfile_context(self):
+        del self.contexts_[-1]
+
+    def capture_user_context(self):
+        return self.contexts_[:]
+
+    def handle_stray_exception(self, e):
+        raise ExceptionWithUserContext("unexpected exception", self.contexts_[:],
+                                       e, sys.exc_info()[2])    
+    def __call__(self, message):
+        self._count = self._count + 1
+        raise ExceptionWithUserContext(message, self.contexts_[:], 
+                                       stack=traceback.extract_stack())
+
+        
+
+    
diff --git a/jam-files/boost-build/build/feature.jam b/jam-files/boost-build/build/feature.jam
new file mode 100644
index 00000000..6f54adef
--- /dev/null
+++ b/jam-files/boost-build/build/feature.jam
@@ -0,0 +1,1335 @@
+# Copyright 2001, 2002, 2003 Dave Abrahams
+# Copyright 2002, 2006 Rene Rivera
+# Copyright 2002, 2003, 2004, 2005, 2006 Vladimir Prus
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+import assert : * ;
+import "class" : * ;
+import errors : lol->list ;
+import indirect ;
+import modules ;
+import regex ;
+import sequence ;
+import set ;
+import utility ;
+
+
+local rule setup ( )
+{
+    .all-attributes =
+        implicit
+        composite
+        optional
+        symmetric
+        free
+        incidental
+        path
+        dependency
+        propagated
+        link-incompatible
+        subfeature
+        order-sensitive
+    ;
+
+    .all-features = ;
+    .all-subfeatures = ;
+    .all-top-features = ;  # non-subfeatures
+    .all-implicit-values = ;
+}
+setup ;
+
+
+# Prepare a fresh space to test in by moving all global variable settings into
+# the given temporary module and erasing them here.
+#
+rule prepare-test ( temp-module )
+{
+    DELETE_MODULE $(temp-module) ;
+
+    # Transfer globals to temp-module.
+    for local v in [ VARNAMES feature ]
+    {
+        if [ MATCH (\\.) : $(v) ]
+        {
+            modules.poke $(temp-module) : $(v) : $($(v)) ;
+            $(v) = ;
+        }
+    }
+    setup ;
+}
+
+
+# Clear out all global variables and recover all variables from the given
+# temporary module.
+#
+rule finish-test ( temp-module )
+{
+    # Clear globals.
+    for local v in [ VARNAMES feature ]
+    {
+        if [ MATCH (\\.) : $(v) ]
+        {
+            $(v) = ;
+        }
+    }
+
+    for local v in [ VARNAMES $(temp-module) ]
+    {
+        $(v) = [ modules.peek $(temp-module) : $(v) ] ;
+    }
+    DELETE_MODULE $(temp-module) ;
+}
+
+
+# Transform features by bracketing any elements which are not already bracketed
+# by "<>".
+#
+local rule grist ( features * )
+{
+    local empty = "" ;
+    return $(empty:G=$(features)) ;
+}
+
+
+# Declare a new feature with the given name, values, and attributes.
+#
+rule feature (
+      name          # Feature name.
+    : values *      # Allowable values - may be extended later using feature.extend.
+    : attributes *  # Feature attributes (e.g. implicit, free, propagated...).
+)
+{
+    name = [ grist $(name) ] ;
+
+    local error ;
+
+    # Check for any unknown attributes.
+    if ! ( $(attributes) in $(.all-attributes) )
+    {
+        error = unknown attributes:
+            [ set.difference $(attributes) : $(.all-attributes) ] ;
+    }
+    else if $(name) in $(.all-features)
+    {
+        error = feature already defined: ;
+    }
+    else if implicit in $(attributes) && free in $(attributes)
+    {
+        error = free features cannot also be implicit ;
+    }
+    else if free in $(attributes) && propagated in $(attributes)
+    {
+        error = free features cannot be propagated ;
+    }
+    else
+    {
+        local m = [ MATCH (.*=.*) : $(values) ] ;
+        if $(m[1])
+        {
+            error = "feature value may not contain '='" ;
+        }
+    }
+
+    if $(error)
+    {
+        errors.error $(error)
+              : "in" feature declaration:
+              : feature [ lol->list $(1) : $(2) : $(3) ] ;
+    }
+
+    $(name).values ?= ;
+    $(name).attributes = $(attributes) ;
+    $(name).subfeatures ?= ;
+    $(attributes).features += $(name) ;
+
+    .all-features += $(name) ;
+    if subfeature in $(attributes)
+    {
+        .all-subfeatures += $(name) ;
+    }
+    else
+    {
+        .all-top-features += $(name) ;
+    }
+    extend $(name) : $(values) ;
+}
+
+
+# Sets the default value of the given feature, overriding any previous default.
+#
+rule set-default ( feature : value )
+{
+    local f = [ grist $(feature) ] ;
+    local a = $($(f).attributes) ;
+    local bad-attribute = ;
+    if free in $(a)
+    {
+        bad-attribute = free ;
+    }
+    else if optional in $(a)
+    {
+        bad-attribute = optional ;
+    }
+    if $(bad-attribute)
+    {
+        errors.error "$(bad-attribute) property $(f) cannot have a default." ;
+    }
+    if ! $(value) in $($(f).values)
+    {
+        errors.error "The specified default value, '$(value)' is invalid"
+          : "allowed values are: " $($(f).values) ;
+    }
+    $(f).default = $(value) ;
+}
+
+
+# Returns the default property values for the given features.
+#
+rule defaults ( features * )
+{
+    local result ;
+    for local f in $(features)
+    {
+        local gf = $(:E=:G=$(f)) ;
+        local a = $($(gf).attributes) ;
+        if ( free in $(a) ) || ( optional in $(a) )
+        {
+        }
+        else
+        {
+            result += $(gf)$($(gf).default) ;
+        }
+    }
+    return $(result) ;
+}
+
+
+# Returns true iff all 'names' elements are valid features.
+#
+rule valid ( names + )
+{
+    if $(names) in $(.all-features)
+    {
+        return true ;
+    }
+}
+
+
+# Returns the attibutes of the given feature.
+#
+rule attributes ( feature )
+{
+    return $($(:E=:G=$(feature)).attributes) ;
+}
+
+
+# Returns the values of the given feature.
+#
+rule values ( feature )
+{
+    return $($(:E=:G=$(feature)).values) ;
+}
+
+
+# Returns true iff 'value-string' is a value-string of an implicit feature.
+#
+rule is-implicit-value ( value-string )
+{
+    local v = [ regex.split $(value-string) - ] ;
+    local failed ;
+    if ! $(v[1]) in $(.all-implicit-values)
+    {
+        failed = true ;
+    }
+    else
+    {
+        local feature = $($(v[1]).implicit-feature) ;
+        for local subvalue in $(v[2-])
+        {
+            if ! [ find-implied-subfeature $(feature) $(subvalue) : $(v[1]) ]
+            {
+                failed = true ;
+            }
+        }
+    }
+
+    if ! $(failed)
+    {
+        return true ;
+    }
+}
+
+
+# Returns the implicit feature associated with the given implicit value.
+#
+rule implied-feature ( implicit-value )
+{
+    local components = [ regex.split $(implicit-value) "-" ] ;
+
+    local feature = $($(components[1]).implicit-feature) ;
+    if ! $(feature)
+    {
+        errors.error \"$(implicit-value)\" is not a value of an implicit feature ;
+        feature = "" ;  # Keep testing happy; it expects a result.
+    }
+    return $(feature) ;
+}
+
+
+local rule find-implied-subfeature ( feature subvalue : value-string ? )
+{
+    # Feature should be of the form <feature-name>.
+    if $(feature) != $(feature:G)
+    {
+        errors.error invalid feature $(feature) ;
+    }
+
+    return $($(feature)$(value-string:E="")<>$(subvalue).subfeature) ;
+}
+
+
+# Given a feature and a value of one of its subfeatures, find the name of the
+# subfeature. If value-string is supplied, looks for implied subfeatures that
+# are specific to that value of feature
+#
+rule implied-subfeature (
+      feature         # The main feature name.
+      subvalue        # The value of one of its subfeatures.
+    : value-string ?  # The value of the main feature.
+)
+{
+    local subfeature = [ find-implied-subfeature $(feature) $(subvalue)
+        : $(value-string) ] ;
+    if ! $(subfeature)
+    {
+        value-string ?= "" ;
+        errors.error \"$(subvalue)\" is not a known subfeature value of
+            $(feature)$(value-string) ;
+    }
+    return $(subfeature) ;
+}
+
+
+# Generate an error if the feature is unknown.
+#
+local rule validate-feature ( feature )
+{
+    if ! $(feature) in $(.all-features)
+    {
+        errors.error unknown feature \"$(feature)\" ;
+    }
+}
+
+
+# Given a feature and its value or just a value corresponding to an implicit
+# feature, returns a property set consisting of all component subfeatures and
+# their values. For example all the following calls:
+#
+#   expand-subfeatures-aux <toolset>gcc-2.95.2-linux-x86
+#   expand-subfeatures-aux gcc-2.95.2-linux-x86
+#
+# return:
+#
+#   <toolset>gcc <toolset-version>2.95.2 <toolset-os>linux <toolset-cpu>x86
+#
+local rule expand-subfeatures-aux (
+      feature ?        # Feature name or empty if value corresponds to an
+                       # implicit property.
+    : value            # Feature value.
+    : dont-validate ?  # If set, no value string validation will be done.
+)
+{
+    if $(feature)
+    {
+        feature = $(feature) ;
+    }
+
+    if ! $(feature)
+    {
+        feature = [ implied-feature $(value) ] ;
+    }
+    else
+    {
+        validate-feature $(feature) ;
+    }
+    if ! $(dont-validate)
+    {
+        validate-value-string $(feature) $(value) ;
+    }
+
+    local components = [ regex.split $(value) "-" ] ;
+
+    # Get the top-level feature's value.
+    local value = $(components[1]:G=) ;
+
+    local result = $(components[1]:G=$(feature)) ;
+
+    local subvalues = $(components[2-]) ;
+    while $(subvalues)
+    {
+        local subvalue = $(subvalues[1]) ;  # Pop the head off of subvalues.
+        subvalues = $(subvalues[2-]) ;
+
+        local subfeature = [ find-implied-subfeature $(feature) $(subvalue) :
+            $(value) ] ;
+
+        # If no subfeature was found reconstitute the value string and use that.
+        if ! $(subfeature)
+        {
+            result = $(components:J=-) ;
+            result = $(result:G=$(feature)) ;
+            subvalues = ;  # Stop looping.
+        }
+        else
+        {
+            local f = [ MATCH ^<(.*)>$ : $(feature) ] ;
+            result += $(subvalue:G=$(f)-$(subfeature)) ;
+        }
+    }
+
+    return $(result) ;
+}
+
+
+# Make all elements of properties corresponding to implicit features explicit,
+# and express all subfeature values as separate properties in their own right.
+# For example, all of the following properties
+#
+#    gcc-2.95.2-linux-x86
+#    <toolset>gcc-2.95.2-linux-x86
+#
+# might expand to
+#
+#   <toolset>gcc <toolset-version>2.95.2 <toolset-os>linux <toolset-cpu>x86
+#
+rule expand-subfeatures (
+    properties *       # Property set with elements of the form
+                       # <feature>value-string or just value-string in the case
+                       # of implicit features.
+    : dont-validate ?
+)
+{
+    local result ;
+    for local p in $(properties)
+    {
+        # Don't expand subfeatures in subfeatures
+        if ! [ MATCH "(:)" : $(p:G) ]
+        {
+            result += [ expand-subfeatures-aux $(p:G) : $(p:G=) : $(dont-validate) ] ;
+        }
+        else
+        {
+            result += $(p) ;
+        }
+    }
+    return $(result) ;
+}
+
+
+# Helper for extend, below. Handles the feature case.
+#
+local rule extend-feature ( feature : values * )
+{
+    feature = [ grist $(feature) ] ;
+    validate-feature $(feature) ;
+    if implicit in $($(feature).attributes)
+    {
+        for local v in $(values)
+        {
+            if $($(v).implicit-feature)
+            {
+                errors.error $(v) is already associated with the \"$($(v).implicit-feature)\" feature ;
+            }
+            $(v).implicit-feature = $(feature) ;
+        }
+
+        .all-implicit-values += $(values) ;
+    }
+    if ! $($(feature).values)
+    {
+        # This is the first value specified for this feature so make it be the
+        # default.
+        $(feature).default = $(values[1]) ;
+    }
+    $(feature).values += $(values) ;
+}
+
+
+# Checks that value-string is a valid value-string for the given feature.
+#
+rule validate-value-string ( feature value-string )
+{
+    if ! (
+        free in $($(feature).attributes)
+        || ( $(value-string) in $(feature).values )
+    )
+    {
+        local values = $(value-string) ;
+
+        if $($(feature).subfeatures)
+        {
+            if ! ( $(value-string) in $($(feature).values) )
+               && ! ( $(value-string) in $($(feature).subfeatures) ) 
+            {
+                values = [ regex.split $(value-string) - ] ;
+            }
+        }
+
+        if ! ( $(values[1]) in $($(feature).values) ) &&
+
+            # An empty value is allowed for optional features.
+            ( $(values[1]) || ! ( optional in $($(feature).attributes) ) )
+        {
+            errors.error \"$(values[1])\" is not a known value of feature $(feature)
+                : legal values: \"$($(feature).values)\" ;
+        }
+
+        for local v in $(values[2-])
+        {
+            # This will validate any subfeature values in value-string.
+            implied-subfeature $(feature) $(v) : $(values[1]) ;
+        }
+    }
+}
+
+
+# A helper that computes:
+#  * name(s) of module-local variable(s) used to record the correspondence
+#    between subvalue(s) and a subfeature
+#  * value of that variable when such a subfeature/subvalue has been defined and
+# returns a list consisting of the latter followed by the former.
+#
+local rule subvalue-var (
+    feature         # Main feature name.
+    value-string ?  # If supplied, specifies a specific value of the main
+                    # feature for which the subfeature values are valid.
+    : subfeature    # Subfeature name.
+    : subvalues *   # Subfeature values.
+)
+{
+    feature = [ grist $(feature) ] ;
+    validate-feature $(feature) ;
+    if $(value-string)
+    {
+        validate-value-string $(feature) $(value-string) ;
+    }
+
+    local subfeature-name = [ get-subfeature-name $(subfeature) $(value-string) ] ;
+
+    return $(subfeature-name)
+    $(feature)$(value-string:E="")<>$(subvalues).subfeature ;
+}
+
+
+# Extends the given subfeature with the subvalues. If the optional value-string
+# is provided, the subvalues are only valid for the given value of the feature.
+# Thus, you could say that <target-platform>mingw is specific to
+# <toolset>gcc-2.95.2 as follows:
+#
+#       extend-subfeature toolset gcc-2.95.2 : target-platform : mingw ;
+#
+rule extend-subfeature (
+    feature         # The feature whose subfeature is being extended.
+
+    value-string ?  # If supplied, specifies a specific value of the main
+                    # feature for which the new subfeature values are valid.
+
+    : subfeature    # Subfeature name.
+    : subvalues *   # Additional subfeature values.
+)
+{
+    local subfeature-vars = [ subvalue-var $(feature) $(value-string)
+        : $(subfeature) : $(subvalues) ] ;
+
+    local f = [ utility.ungrist [ grist $(feature) ] ] ;
+    extend $(f)-$(subfeature-vars[1]) : $(subvalues) ;
+
+    # Provide a way to get from the given feature or property and subfeature
+    # value to the subfeature name.
+    $(subfeature-vars[2-]) = $(subfeature-vars[1]) ;
+}
+
+
+# Returns true iff the subvalues are valid for the feature. When the optional
+# value-string is provided, returns true iff the subvalues are valid for the
+# given value of the feature.
+#
+rule is-subvalue ( feature : value-string ? : subfeature : subvalue )
+{
+    local subfeature-vars = [ subvalue-var $(feature) $(value-string)
+        : $(subfeature) : $(subvalue) ] ;
+
+    if $($(subfeature-vars[2])) = $(subfeature-vars[1])
+    {
+        return true ;
+    }
+}
+
+
+# Can be called three ways:
+#
+#    1. extend feature : values *
+#    2. extend <feature> subfeature : values *
+#    3. extend <feature>value-string subfeature : values *
+#
+# * Form 1 adds the given values to the given feature.
+# * Forms 2 and 3 add subfeature values to the given feature.
+# * Form 3 adds the subfeature values as specific to the given property
+#   value-string.
+#
+rule extend ( feature-or-property subfeature ? : values * )
+{
+    local feature ;       # If a property was specified this is its feature.
+    local value-string ;  # E.g., the gcc-2.95-2 part of <toolset>gcc-2.95.2.
+
+    # If a property was specified.
+    if $(feature-or-property:G) && $(feature-or-property:G=)
+    {
+        # Extract the feature and value-string, if any.
+        feature = $(feature-or-property:G) ;
+        value-string = $(feature-or-property:G=) ;
+    }
+    else
+    {
+        feature = [ grist $(feature-or-property) ] ;
+    }
+
+    # Dispatch to the appropriate handler.
+    if $(subfeature)
+    {
+        extend-subfeature $(feature) $(value-string) : $(subfeature)
+            : $(values) ;
+    }
+    else
+    {
+        # If no subfeature was specified, we do not expect to see a
+        # value-string.
+        if $(value-string)
+        {
+            errors.error can only specify a property as the first argument when
+                extending a subfeature
+                : usage:
+                : "    extend" feature ":" values...
+                : "  | extend" <feature>value-string subfeature ":" values...
+                ;
+        }
+
+        extend-feature $(feature) : $(values) ;
+    }
+}
+
+
+local rule get-subfeature-name ( subfeature value-string ? )
+{
+    local prefix = $(value-string): ;
+    return $(prefix:E="")$(subfeature) ;
+}
+
+
+# Declares a subfeature.
+#
+rule subfeature (
+    feature         # Root feature that is not a subfeature.
+    value-string ?  # A value-string specifying which feature or subfeature
+                    # values this subfeature is specific to, if any.
+    : subfeature    # The name of the subfeature being declared.
+    : subvalues *   # The allowed values of this subfeature.
+    : attributes *  # The attributes of the subfeature.
+)
+{
+    feature = [ grist $(feature) ] ;
+    validate-feature $(feature) ;
+
+    # Add grist to the subfeature name if a value-string was supplied.
+    local subfeature-name = [ get-subfeature-name $(subfeature) $(value-string) ] ;
+
+    if $(subfeature-name) in $($(feature).subfeatures)
+    {
+        errors.error \"$(subfeature)\" already declared as a subfeature of \"$(feature)\"
+            "specific to "$(value-string) ;
+    }
+    $(feature).subfeatures += $(subfeature-name) ;
+
+    # First declare the subfeature as a feature in its own right.
+    local f = [ utility.ungrist $(feature) ] ;
+    feature $(f)-$(subfeature-name) : $(subvalues) : $(attributes) subfeature ;
+
+    # Now make sure the subfeature values are known.
+    extend-subfeature $(feature) $(value-string) : $(subfeature) : $(subvalues) ;
+}
+
+
+# Set components of the given composite property.
+#
+rule compose ( composite-property : component-properties * )
+{
+    local feature = $(composite-property:G) ;
+    if ! ( composite in [ attributes $(feature) ] )
+    {
+        errors.error "$(feature)" is not a composite feature ;
+    }
+
+    $(composite-property).components ?= ;
+    if $($(composite-property).components)
+    {
+        errors.error components of "$(composite-property)" already set:
+            $($(composite-property).components) ;
+    }
+
+    if $(composite-property) in $(component-properties)
+    {
+        errors.error composite property "$(composite-property)" cannot have itself as a component ;
+    }
+    $(composite-property).components = $(component-properties) ;
+}
+
+
+local rule expand-composite ( property )
+{
+    return $(property)
+        [ sequence.transform expand-composite : $($(property).components) ] ;
+}
+
+
+# Return all values of the given feature specified by the given property set.
+#
+rule get-values ( feature : properties * )
+{
+    local result ;
+
+    feature = $(:E=:G=$(feature)) ;  # Add <> if necessary.
+    for local p in $(properties)
+    {
+        if $(p:G) = $(feature)
+        {
+            # Use MATCH instead of :G= to get the value, in order to preserve
+            # the value intact instead of having bjam treat it as a decomposable
+            # path.
+            result += [ MATCH ">(.*)" : $(p) ] ;
+        }
+    }
+    return $(result) ;
+}
+
+
+rule free-features ( )
+{
+    return $(free.features) ;
+}
+
+
+# Expand all composite properties in the set so that all components are
+# explicitly expressed.
+#
+rule expand-composites ( properties * )
+{
+    local explicit-features = $(properties:G) ;
+    local result ;
+
+    # Now expand composite features.
+    for local p in $(properties)
+    {
+        local expanded = [ expand-composite $(p) ] ;
+
+        for local x in $(expanded)
+        {
+            if ! $(x) in $(result)
+            {
+                local f = $(x:G) ;
+
+                if $(f) in $(free.features)
+                {
+                    result += $(x) ;
+                }
+                else if ! $(x) in $(properties)  # x is the result of expansion
+                {
+                    if ! $(f) in $(explicit-features)  # not explicitly-specified
+                    {
+                        if $(f) in $(result:G)
+                        {
+                            errors.error expansions of composite features result
+                                in conflicting values for $(f)
+                                : values: [ get-values $(f) : $(result) ] $(x:G=)
+                                : one contributing composite property was $(p) ;
+                        }
+                        else
+                        {
+                            result += $(x) ;
+                        }
+                    }
+                }
+                else if $(f) in $(result:G)
+                {
+                    errors.error explicitly-specified values of non-free feature
+                        $(f) conflict :
+                        "existing values:" [ get-values $(f) : $(properties) ] :
+                        "value from expanding " $(p) ":" $(x:G=) ;
+                }
+                else
+                {
+                    result += $(x) ;
+                }
+            }
+        }
+    }
+    return $(result) ;
+}
+
+
+# Return true iff f is an ordinary subfeature of the parent-property's feature,
+# or if f is a subfeature of the parent-property's feature specific to the
+# parent-property's value.
+#
+local rule is-subfeature-of ( parent-property f )
+{
+    if subfeature in $($(f).attributes)
+    {
+        local specific-subfeature = [ MATCH <(.*):(.*)> : $(f) ] ;
+        if $(specific-subfeature)
+        {
+            # The feature has the form <topfeature-topvalue:subfeature>, e.g.
+            # <toolset-msvc:version>.
+            local feature-value = [ split-top-feature $(specific-subfeature[1])
+                ] ;
+            if <$(feature-value[1])>$(feature-value[2]) = $(parent-property)
+            {
+                return true ;
+            }
+        }
+        else
+        {
+            # The feature has the form <topfeature-subfeature>, e.g.
+            # <toolset-version>
+            local top-sub = [ split-top-feature [ utility.ungrist $(f) ] ] ;
+            if $(top-sub[2]) && <$(top-sub[1])> = $(parent-property:G)
+            {
+                return true ;
+            }
+        }
+    }
+}
+
+
+# As for is-subfeature-of but for subproperties.
+#
+local rule is-subproperty-of ( parent-property p )
+{
+    return [ is-subfeature-of $(parent-property) $(p:G) ] ;
+}
+
+
+# Given a property, return the subset of features consisting of all ordinary
+# subfeatures of the property's feature, and all specific subfeatures of the
+# property's feature which are conditional on the property's value.
+#
+local rule select-subfeatures ( parent-property : features * )
+{
+    return [ sequence.filter is-subfeature-of $(parent-property) : $(features) ] ;
+}
+
+
+# As for select-subfeatures but for subproperties.
+#
+local rule select-subproperties ( parent-property : properties * )
+{
+    return [ sequence.filter is-subproperty-of $(parent-property) : $(properties) ] ;
+}
+
+
+# Given a property set which may consist of composite and implicit properties
+# and combined subfeature values, returns an expanded, normalized property set
+# with all implicit features expressed explicitly, all subfeature values
+# individually expressed, and all components of composite properties expanded.
+# Non-free features directly expressed in the input properties cause any values
+# of those features due to composite feature expansion to be dropped. If two
+# values of a given non-free feature are directly expressed in the input, an
+# error is issued.
+#
+rule expand ( properties * )
+{
+    local expanded = [ expand-subfeatures $(properties) ] ;
+    return [ expand-composites $(expanded) ] ;
+}
+
+
+# Helper rule for minimize. Returns true iff property's feature is present in
+# the contents of the variable named by feature-set-var.
+#
+local rule in-features ( feature-set-var property )
+{
+    if $(property:G) in $($(feature-set-var))
+    {
+        return true ;
+    }
+}
+
+
+# Helper rule for minimize. Returns the list with the same properties, but with
+# all subfeatures moved to the end of the list.
+#
+local rule move-subfeatures-to-the-end ( properties * )
+{
+    local x1 ;
+    local x2 ;
+    for local p in $(properties)
+    {
+        if subfeature in $($(p:G).attributes)
+        {
+            x2 += $(p) ;
+        }
+        else
+        {
+            x1 += $(p) ;
+        }
+    }
+    return $(x1) $(x2) ;
+}
+
+
+# Given an expanded property set, eliminate all redundancy: properties that are
+# elements of other (composite) properties in the set will be eliminated.
+# Non-symmetric properties equal to default values will be eliminated unless
+# they override a value from some composite property. Implicit properties will
+# be expressed without feature grist, and sub-property values will be expressed
+# as elements joined to the corresponding main property.
+#
+rule minimize ( properties * )
+{
+    # Precondition checking
+    local implicits = [ set.intersection $(p:G=) : $(p:G) ] ;
+    if $(implicits)
+    {
+        errors.error minimize requires an expanded property set, but
+            \"$(implicits[1])\" appears to be the value of an un-expanded
+            implicit feature ;
+    }
+
+    # Remove properties implied by composite features.
+    local components = $($(properties).components) ;
+    local x = [ set.difference $(properties) : $(components) ] ;
+
+    # Handle subfeatures and implicit features.
+    x = [ move-subfeatures-to-the-end $(x) ] ;
+    local result ;
+    while $(x)
+    {
+        local p fullp = $(x[1]) ;
+        local f = $(p:G) ;
+        local v = $(p:G=) ;
+
+        # Eliminate features in implicit properties.
+        if implicit in [ attributes $(f) ]
+        {
+            p = $(v) ;
+        }
+
+        # Locate all subproperties of $(x[1]) in the property set.
+        local subproperties = [ select-subproperties $(fullp) : $(x) ] ;
+        if $(subproperties)
+        {
+            # Reconstitute the joined property name.
+            local sorted = [ sequence.insertion-sort $(subproperties) ] ;
+            result += $(p)-$(sorted:G="":J=-) ;
+
+            x = [ set.difference $(x[2-]) : $(subproperties) ] ;
+        }
+        else
+        {
+            # Eliminate properties whose value is equal to feature's default,
+            # which are not symmetric and which do not contradict values implied
+            # by composite properties.
+
+            # Since all component properties of composites in the set have been
+            # eliminated, any remaining property whose feature is the same as a
+            # component of a composite in the set must have a non-redundant
+            # value.
+            if $(fullp) != [ defaults $(f) ]
+                || symmetric in [ attributes $(f) ]
+                || $(fullp:G) in $(components:G)
+            {
+                result += $(p) ;
+            }
+
+            x = $(x[2-]) ;
+        }
+    }
+    return $(result) ;
+}
+
+
+# Combine all subproperties into their parent properties
+#
+# Requires: for every subproperty, there is a parent property. All features are
+# explicitly expressed.
+#
+# This rule probably should not be needed, but build-request.expand-no-defaults
+# is being abused for unintended purposes and it needs help.
+#
+rule compress-subproperties ( properties * )
+{
+    local all-subs ;
+    local matched-subs ;
+    local result ;
+
+    for local p in $(properties)
+    {
+        if ! $(p:G)
+        {
+            # Expecting fully-gristed properties.
+            assert.variable-not-empty p:G ;
+        }
+
+        if ! subfeature in $($(p:G).attributes)
+        {
+            local subs = [ sequence.insertion-sort
+                [ sequence.filter is-subproperty-of $(p) : $(properties) ] ] ;
+
+            matched-subs += $(subs) ;
+
+            local subvalues = -$(subs:G=:J=-) ;
+            subvalues ?= "" ;
+            result += $(p)$(subvalues) ;
+        }
+        else
+        {
+            all-subs += $(p) ;
+        }
+    }
+    assert.result true : set.equal $(all-subs) : $(matched-subs) ;
+    return $(result) ;
+}
+
+
+# Given an ungristed string, finds the longest prefix which is a top-level
+# feature name followed by a dash, and return a pair consisting of the parts
+# before and after that dash. More interesting than a simple split because
+# feature names may contain dashes.
+#
+local rule split-top-feature ( feature-plus )
+{
+    local e = [ regex.split $(feature-plus) - ] ;
+    local f = $(e[1]) ;
+    local v ;
+    while $(e)
+    {
+        if <$(f)> in $(.all-top-features)
+        {
+            v = $(f) $(e[2-]:J=-) ;
+        }
+        e = $(e[2-]) ;
+        f = $(f)-$(e[1]) ;
+    }
+    return $(v) ;
+}
+
+
+# Given a set of properties, add default values for features not represented in
+# the set.
+#
+# Note: if there's an ordinary feature F1 and a composite feature F2 which
+# includes some value for F1 and both feature have default values then the
+# default value of F1 will be added (as opposed to the value in F2). This might
+# not be the right idea, e.g. consider:
+#
+#   feature variant : debug ... ;
+#        <variant>debug : .... <runtime-debugging>on
+#   feature <runtime-debugging> : off on ;
+#
+#   Here, when adding default for an empty property set, we'll get
+#
+#     <variant>debug <runtime_debugging>off
+#
+#   and that's kind of strange.
+#
+rule add-defaults ( properties * )
+{
+    for local v in $(properties:G=)
+    {
+        if $(v) in $(properties)
+        {
+            errors.error add-defaults requires explicitly specified features,
+                but \"$(v)\" appears to be the value of an un-expanded implicit
+                feature ;
+        }
+    }
+    # We don't add default for elements with ":" inside. This catches:
+    # 1. Conditional properties --- we don't want <variant>debug:<define>DEBUG
+    #    to be takes as specified value for <variant>
+    # 2. Free properties with ":" in values. We don't care, since free
+    #    properties don't have defaults.
+    local xproperties = [ MATCH "^([^:]+)$" : $(properties) ] ;
+    local missing-top = [ set.difference $(.all-top-features) : $(xproperties:G) ] ;
+    local more =  [ defaults $(missing-top) ] ;
+    properties += $(more) ;
+    xproperties += $(more) ;
+
+    # Add defaults for subfeatures of features which are present.
+    for local p in $(xproperties)
+    {
+        local s = $($(p:G).subfeatures) ;
+        local f = [ utility.ungrist $(p:G) ] ;
+        local missing-subs = [ set.difference <$(f)-$(s)> : $(properties:G) ] ;
+        properties += [ defaults [ select-subfeatures $(p) : $(missing-subs) ] ] ;
+    }
+
+    return $(properties)  ;
+}
+
+
+# Given a property-set of the form
+#       v1/v2/...vN-1/<fN>vN/<fN+1>vN+1/...<fM>vM
+#
+# Returns
+#       v1 v2 ... vN-1 <fN>vN <fN+1>vN+1 ... <fM>vM
+#
+# Note that vN...vM may contain slashes. This needs to be resilient to the
+# substitution of backslashes for slashes, since Jam, unbidden, sometimes swaps
+# slash direction on NT.
+#
+rule split ( property-set )
+{
+    local pieces = [ regex.split $(property-set) [\\/] ] ;
+    local result ;
+
+    for local x in $(pieces)
+    {
+        if ( ! $(x:G) ) && $(result[-1]:G)
+        {
+            result = $(result[1--2]) $(result[-1])/$(x) ;
+        }
+        else
+        {
+            result += $(x) ;
+        }
+    }
+
+    return $(result) ;
+}
+
+
+# Tests of module feature.
+#
+rule __test__ ( )
+{
+    # Use a fresh copy of the feature module.
+    prepare-test feature-test-temp ;
+
+    import assert ;
+    import errors : try catch ;
+
+    # These are local rules and so must be explicitly reimported into the
+    # testing module.
+    import feature : extend-feature validate-feature select-subfeatures ;
+
+    feature toolset : gcc : implicit ;
+    feature define : : free ;
+    feature runtime-link : dynamic static : symmetric ;
+    feature optimization : on off ;
+    feature variant : debug release profile : implicit composite symmetric ;
+    feature stdlib : native stlport ;
+    feature magic : : free ;
+
+    compose <variant>debug : <define>_DEBUG <optimization>off ;
+    compose <variant>release : <define>NDEBUG <optimization>on ;
+
+    assert.result dynamic static : values <runtime-link> ;
+    assert.result dynamic static : values runtime-link ;
+
+    try ;
+    {
+        compose <variant>profile : <variant>profile ;
+    }
+    catch composite property <variant>profile cannot have itself as a component ;
+
+    extend-feature toolset : msvc metrowerks ;
+    subfeature toolset gcc : version : 2.95.2 2.95.3 2.95.4 3.0 3.0.1 3.0.2 ;
+
+    assert.true is-subvalue toolset : gcc : version : 2.95.3 ;
+    assert.false is-subvalue toolset : gcc : version : 1.1 ;
+
+    assert.false is-subvalue toolset : msvc : version : 2.95.3 ;
+    assert.false is-subvalue toolset : : version : yabba ;
+
+    feature yabba ;
+    subfeature yabba : version : dabba ;
+    assert.true is-subvalue yabba : : version : dabba ;
+
+    subfeature toolset gcc : platform : linux cygwin : optional ;
+
+    assert.result <toolset-gcc:version>
+        : select-subfeatures <toolset>gcc
+        : <toolset-gcc:version>
+          <toolset-msvc:version>
+          <toolset-version>
+          <stdlib> ;
+
+    subfeature stdlib : version : 3 4 : optional ;
+
+    assert.result <stdlib-version>
+        : select-subfeatures <stdlib>native
+        : <toolset-gcc:version>
+          <toolset-msvc:version>
+          <toolset-version>
+          <stdlib-version> ;
+
+    assert.result <toolset>gcc <toolset-gcc:version>3.0.1
+        : expand-subfeatures <toolset>gcc-3.0.1 ;
+
+    assert.result <toolset>gcc <toolset-gcc:version>3.0.1 <toolset-gcc:platform>linux
+        : expand-subfeatures <toolset>gcc-3.0.1-linux ;
+
+    assert.result <toolset>gcc <toolset-gcc:version>3.0.1
+        : expand <toolset>gcc <toolset-gcc:version>3.0.1  ;
+
+    assert.result <define>foo=x-y
+        : expand-subfeatures <define>foo=x-y ;
+
+    assert.result <toolset>gcc <toolset-gcc:version>3.0.1
+        : expand-subfeatures gcc-3.0.1 ;
+
+    assert.result a c e
+        : get-values <x> : <x>a <y>b <x>c <y>d <x>e ;
+
+    assert.result <toolset>gcc <toolset-gcc:version>3.0.1
+        <variant>debug <define>_DEBUG <optimization>on
+        : expand gcc-3.0.1 debug <optimization>on ;
+
+    assert.result <variant>debug <define>_DEBUG <optimization>on
+        : expand debug <optimization>on ;
+
+    assert.result <optimization>on <variant>debug <define>_DEBUG
+        : expand <optimization>on debug ;
+
+    assert.result <runtime-link>dynamic <optimization>on
+        : defaults <runtime-link> <define> <optimization> ;
+
+    # Make sure defaults is resilient to missing grist.
+    assert.result <runtime-link>dynamic <optimization>on
+        : defaults runtime-link define optimization ;
+
+    feature dummy : dummy1 dummy2 ;
+    subfeature dummy : subdummy : x y z : optional ;
+
+    feature fu : fu1 fu2 : optional ;
+    subfeature fu : subfu : x y z : optional ;
+    subfeature fu : subfu2 : q r s ;
+
+    assert.result optional : attributes <fu> ;
+    assert.result optional : attributes fu ;
+
+    assert.result <runtime-link>static <define>foobar <optimization>on
+        <toolset>gcc:<define>FOO <toolset>gcc <variant>debug <stdlib>native
+        <dummy>dummy1 <toolset-gcc:version>2.95.2
+        : add-defaults <runtime-link>static <define>foobar <optimization>on
+          <toolset>gcc:<define>FOO ;
+
+    assert.result <runtime-link>static <define>foobar <optimization>on
+        <toolset>gcc:<define>FOO <fu>fu1 <toolset>gcc <variant>debug
+        <stdlib>native <dummy>dummy1 <fu-subfu2>q <toolset-gcc:version>2.95.2
+        : add-defaults <runtime-link>static <define>foobar <optimization>on
+          <toolset>gcc:<define>FOO <fu>fu1 ;
+
+    set-default <runtime-link> : static ;
+    assert.result <runtime-link>static : defaults <runtime-link> ;
+
+    assert.result gcc-3.0.1 debug <optimization>on
+        : minimize [ expand gcc-3.0.1 debug <optimization>on <stdlib>native ] ;
+
+    assert.result gcc-3.0.1 debug <runtime-link>dynamic
+        : minimize
+          [ expand gcc-3.0.1 debug <optimization>off <runtime-link>dynamic ] ;
+
+    assert.result gcc-3.0.1 debug
+        : minimize [ expand gcc-3.0.1 debug <optimization>off ] ;
+
+    assert.result debug <optimization>on
+        : minimize [ expand debug <optimization>on ] ;
+
+    assert.result gcc-3.0
+        : minimize <toolset>gcc <toolset-gcc:version>3.0 ;
+
+    assert.result gcc-3.0
+        : minimize <toolset-gcc:version>3.0 <toolset>gcc ;
+
+    assert.result <x>y/z <a>b/c <d>e/f
+        : split <x>y/z/<a>b/c/<d>e/f ;
+
+    assert.result <x>y/z <a>b/c <d>e/f
+        : split <x>y\\z\\<a>b\\c\\<d>e\\f ;
+
+    assert.result a b c <d>e/f/g <h>i/j/k
+        : split a/b/c/<d>e/f/g/<h>i/j/k ;
+
+    assert.result a b c <d>e/f/g <h>i/j/k
+        : split a\\b\\c\\<d>e\\f\\g\\<h>i\\j\\k ;
+
+    # Test error checking.
+
+    try ;
+    {
+        expand release <optimization>off <optimization>on ;
+    }
+    catch explicitly-specified values of non-free feature <optimization> conflict ;
+
+    try ;
+    {
+        validate-feature <foobar> ;
+    }
+    catch unknown feature ;
+
+    validate-value-string <toolset> gcc ;
+    validate-value-string <toolset> gcc-3.0.1 ;
+
+    try ;
+    {
+        validate-value-string <toolset> digital_mars ;
+    }
+    catch \"digital_mars\" is not a known value of <toolset> ;
+
+    try ;
+    {
+        feature foobar : : baz ;
+    }
+    catch unknown attributes: baz ;
+
+    feature feature1 ;
+    try ;
+    {
+        feature feature1 ;
+    }
+    catch feature already defined: ;
+
+    try ;
+    {
+        feature feature2 : : free implicit ;
+    }
+    catch free features cannot also be implicit ;
+
+    try ;
+    {
+        feature feature3 : : free propagated ;
+    }
+    catch free features cannot be propagated ;
+
+    try ;
+    {
+        implied-feature lackluster ;
+    }
+    catch \"lackluster\" is not a value of an implicit feature ;
+
+    try ;
+    {
+        implied-subfeature <toolset> 3.0.1 ;
+    }
+    catch \"3.0.1\" is not a known subfeature value of <toolset> ;
+
+    try ;
+    {
+        implied-subfeature <toolset> not-a-version : gcc ;
+    }
+    catch \"not-a-version\" is not a known subfeature value of <toolset>gcc ;
+
+    # Leave a clean copy of the features module behind.
+    finish-test feature-test-temp ;
+}
diff --git a/jam-files/boost-build/build/feature.py b/jam-files/boost-build/build/feature.py
new file mode 100644
index 00000000..315a18e9
--- /dev/null
+++ b/jam-files/boost-build/build/feature.py
@@ -0,0 +1,905 @@
+# Status: ported, except for unit tests.
+# Base revision: 64488
+#
+# Copyright 2001, 2002, 2003 Dave Abrahams 
+# Copyright 2002, 2006 Rene Rivera 
+# Copyright 2002, 2003, 2004, 2005, 2006 Vladimir Prus 
+# Distributed under the Boost Software License, Version 1.0. 
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) 
+
+import re
+
+from b2.util import utility, bjam_signature
+import b2.util.set
+from b2.util.utility import add_grist, get_grist, ungrist, replace_grist, to_seq
+from b2.exceptions import *
+
+__re_split_subfeatures = re.compile ('<(.*):(.*)>')
+__re_no_hyphen = re.compile ('^([^:]+)$')
+__re_slash_or_backslash = re.compile (r'[\\/]')
+
+class Feature(object):
+
+    # Map from string attribute names to integers bit flags.
+    # This will be initialized after declaration of the class.
+    _attribute_name_to_integer = {}
+
+    def __init__(self, name, values, attributes):
+        self._name = name
+        self._values = values
+        self._default = None
+        self._attributes = 0
+        for a in attributes:
+            self._attributes = self._attributes | Feature._attribute_name_to_integer[a]
+        self._attributes_string_list = attributes
+        self._subfeatures = []
+        self._parent = None
+
+    def name(self):
+        return self._name
+
+    def values(self):
+        return self._values
+
+    def add_values(self, values):
+        self._values.extend(values)
+
+    def attributes(self):
+        return self._attributes
+
+    def set_default(self, value):
+        self._default = value
+
+    def default(self):
+        return self._default
+
+    # FIXME: remove when we fully move to using classes for features/properties
+    def attributes_string_list(self):
+        return self._attributes_string_list
+
+    def subfeatures(self):
+        return self._subfeatures
+
+    def add_subfeature(self, name):
+        self._subfeatures.append(name)
+
+    def parent(self):
+        """For subfeatures, return pair of (parent_feature, value).
+
+        Value may be None if this subfeature is not specific to any
+        value of the parent feature.
+        """
+        return self._parent
+
+    def set_parent(self, feature, value):
+        self._parent = (feature, value)
+
+    def __str__(self):
+        return self._name
+
+    
+def reset ():
+    """ Clear the module state. This is mainly for testing purposes.
+    """
+    global __all_attributes, __all_features, __implicit_features, __composite_properties
+    global __features_with_attributes, __subfeature_from_value, __all_top_features, __free_features
+    global __all_subfeatures
+        
+    # The list with all attribute names.
+    __all_attributes = [ 'implicit',
+                        'composite',
+                        'optional',
+                        'symmetric',
+                        'free',
+                        'incidental',
+                        'path',
+                        'dependency',
+                        'propagated',
+                        'link-incompatible',
+                        'subfeature',
+                        'order-sensitive'
+                       ]
+    i = 1
+    for a in __all_attributes:
+        setattr(Feature, a.upper(), i)
+        Feature._attribute_name_to_integer[a] = i
+        def probe(self, flag=i):
+            return getattr(self, "_attributes") & flag
+        setattr(Feature, a.replace("-", "_"), probe)
+        i = i << 1
+    
+    # A map containing all features. The key is the feature name.
+    # The value is an instance of Feature class.
+    __all_features = {}
+    
+    # All non-subfeatures.
+    __all_top_features = []
+    
+    # Maps valus to the corresponding implicit feature
+    __implicit_features = {}
+    
+    # A map containing all composite properties. The key is a Property instance,
+    # and the value is a list of Property instances
+    __composite_properties = {}
+    
+    __features_with_attributes = {}
+    for attribute in __all_attributes:
+        __features_with_attributes [attribute] = []
+    
+    # Maps a value to the corresponding subfeature name.
+    __subfeature_from_value = {}
+    
+    # All free features
+    __free_features = []
+
+    __all_subfeatures = []
+
+reset ()
+
+def enumerate ():
+    """ Returns an iterator to the features map.
+    """
+    return __all_features.iteritems ()
+
+def get(name):
+    """Return the Feature instance for the specified name.
+
+    Throws if no feature by such name exists
+    """
+    return __all_features[name]
+
+# FIXME: prepare-test/finish-test?
+
+@bjam_signature((["name"], ["values", "*"], ["attributes", "*"]))
+def feature (name, values, attributes = []):
+    """ Declares a new feature with the given name, values, and attributes.
+        name: the feature name
+        values: a sequence of the allowable values - may be extended later with feature.extend
+        attributes: a sequence of the feature's attributes (e.g. implicit, free, propagated, ...)
+    """
+    __validate_feature_attributes (name, attributes)
+
+    feature = Feature(name, [], attributes)
+    __all_features[name] = feature
+    # Temporary measure while we have not fully moved from 'gristed strings'
+    __all_features["<" + name + ">"] = feature
+        
+    for attribute in attributes:
+        __features_with_attributes [attribute].append (name)
+
+    name = add_grist(name)
+        
+    if 'subfeature' in attributes:
+        __all_subfeatures.append(name)
+    else:
+        __all_top_features.append(feature)
+
+    extend (name, values)
+
+    # FIXME: why his is needed.
+    if 'free' in attributes:
+        __free_features.append (name)
+
+    return feature
+
+@bjam_signature((["feature"], ["value"]))
+def set_default (feature, value):
+    """ Sets the default value of the given feature, overriding any previous default.
+        feature: the name of the feature
+        value: the default value to assign
+    """
+    f = __all_features[feature]
+    attributes = f.attributes()
+    bad_attribute = None
+
+    if attributes & Feature.FREE:
+        bad_attribute = "free"
+    elif attributes & Feature.OPTIONAL:
+        bad_attribute = "optional"
+        
+    if bad_attribute:
+        raise InvalidValue ("%s property %s cannot have a default" % (bad_attribute, feature.name()))
+        
+    if not value in f.values():
+        raise InvalidValue ("The specified default value, '%s' is invalid.\n" % value + "allowed values are: %s" % values)
+
+    f.set_default(value)
+
+def defaults(features):
+    """ Returns the default property values for the given features.
+    """
+    # FIXME: should merge feature and property modules.
+    import property
+    
+    result = []
+    for f in features:
+        if not f.free() and not f.optional() and f.default():
+            result.append(property.Property(f, f.default()))
+
+    return result
+
+def valid (names):
+    """ Returns true iff all elements of names are valid features.
+    """
+    def valid_one (name): return __all_features.has_key (name)
+        
+    if isinstance (names, str):
+        return valid_one (names)
+    else:
+        return [ valid_one (name) for name in names ]
+
+def attributes (feature):
+    """ Returns the attributes of the given feature.
+    """
+    return __all_features[feature].attributes_string_list()
+        
+def values (feature):
+    """ Return the values of the given feature.
+    """
+    validate_feature (feature)
+    return __all_features[feature].values()
+
+def is_implicit_value (value_string):
+    """ Returns true iff 'value_string' is a value_string
+    of an implicit feature.
+    """
+
+    if __implicit_features.has_key(value_string):
+        return __implicit_features[value_string]
+    
+    v = value_string.split('-')
+
+    if not __implicit_features.has_key(v[0]):
+        return False
+
+    feature = __implicit_features[v[0]]
+    
+    for subvalue in (v[1:]):
+        if not __find_implied_subfeature(feature, subvalue, v[0]):
+            return False
+            
+    return True
+
+def implied_feature (implicit_value):
+    """ Returns the implicit feature associated with the given implicit value.
+    """
+    components = implicit_value.split('-')
+    
+    if not __implicit_features.has_key(components[0]):
+        raise InvalidValue ("'%s' is not a value of an implicit feature" % implicit_value)
+        
+    return __implicit_features[components[0]]
+
+def __find_implied_subfeature (feature, subvalue, value_string):
+    
+    #if value_string == None: value_string = ''
+
+    if not __subfeature_from_value.has_key(feature) \
+        or not __subfeature_from_value[feature].has_key(value_string) \
+        or not __subfeature_from_value[feature][value_string].has_key (subvalue):
+        return None
+        
+    return __subfeature_from_value[feature][value_string][subvalue]
+
+# Given a feature and a value of one of its subfeatures, find the name
+# of the subfeature. If value-string is supplied, looks for implied
+# subfeatures that are specific to that value of feature
+#  feature             # The main feature name
+#  subvalue            # The value of one of its subfeatures
+#  value-string        # The value of the main feature
+
+def implied_subfeature (feature, subvalue, value_string):
+    result = __find_implied_subfeature (feature, subvalue, value_string)
+    if not result:
+        raise InvalidValue ("'%s' is not a known subfeature value of '%s%s'" % (subvalue, feature, value_string))
+
+    return result
+
+def validate_feature (name):
+    """ Checks if all name is a valid feature. Otherwise, raises an exception.
+    """
+    if not __all_features.has_key(name):
+        raise InvalidFeature ("'%s' is not a valid feature name" % name)
+    else:
+        return __all_features[name]
+
+def valid (names):
+    """ Returns true iff all elements of names are valid features.
+    """
+    def valid_one (name): return __all_features.has_key (name)
+        
+    if isinstance (names, str):
+        return valid_one (names)
+    else:
+        return [ valid_one (name) for name in names ]
+
+# Uses Property
+def __expand_subfeatures_aux (property, dont_validate = False):
+    """ Helper for expand_subfeatures.
+        Given a feature and value, or just a value corresponding to an
+        implicit feature, returns a property set consisting of all component
+        subfeatures and their values. For example:
+        
+          expand_subfeatures <toolset>gcc-2.95.2-linux-x86
+              -> <toolset>gcc <toolset-version>2.95.2 <toolset-os>linux <toolset-cpu>x86
+          equivalent to:
+              expand_subfeatures gcc-2.95.2-linux-x86
+
+        feature:        The name of the feature, or empty if value corresponds to an implicit property
+        value:          The value of the feature.
+        dont_validate:  If True, no validation of value string will be done.
+    """
+    f = property.feature()
+    v = property.value()
+    if not dont_validate:
+        validate_value_string(f, v)
+
+    components = v.split ("-")
+    
+    v = components[0]
+
+    import property
+
+    result = [property.Property(f, components[0])] 
+    
+    subvalues = components[1:]
+
+    while len(subvalues) > 0:
+        subvalue = subvalues [0]    # pop the head off of subvalues
+        subvalues = subvalues [1:]
+        
+        subfeature = __find_implied_subfeature (f, subvalue, v)
+        
+        # If no subfeature was found, reconstitute the value string and use that
+        if not subfeature:
+            return [property.Property(f, '-'.join(components))]
+            
+        result.append(property.Property(subfeature, subvalue))
+    
+    return result
+
+def expand_subfeatures(properties, dont_validate = False):
+    """
+    Make all elements of properties corresponding to implicit features
+    explicit, and express all subfeature values as separate properties
+    in their own right. For example, the property
+    
+       gcc-2.95.2-linux-x86
+    
+    might expand to
+    
+      <toolset>gcc <toolset-version>2.95.2 <toolset-os>linux <toolset-cpu>x86
+
+    properties:     A sequence with elements of the form
+                    <feature>value-string or just value-string in the
+                    case of implicit features.
+  : dont_validate:  If True, no validation of value string will be done.
+    """
+    result = []
+    for p in properties:
+        # Don't expand subfeatures in subfeatures
+        if p.feature().subfeature():
+            result.append (p)
+        else:
+            result.extend(__expand_subfeatures_aux (p, dont_validate))
+
+    return result
+
+
+
+# rule extend was defined as below:
+    # Can be called three ways:
+    #
+    #    1. extend feature : values *
+    #    2. extend <feature> subfeature : values *
+    #    3. extend <feature>value-string subfeature : values *
+    #
+    # * Form 1 adds the given values to the given feature
+    # * Forms 2 and 3 add subfeature values to the given feature
+    # * Form 3 adds the subfeature values as specific to the given
+    #   property value-string.
+    #
+    #rule extend ( feature-or-property subfeature ? : values * )
+#
+# Now, the specific rule must be called, depending on the desired operation:
+#   extend_feature
+#   extend_subfeature
+
+def extend (name, values):
+    """ Adds the given values to the given feature.
+    """
+    name = add_grist (name)
+    __validate_feature (name)
+    feature = __all_features [name]
+
+    if feature.implicit():
+        for v in values:
+            if __implicit_features.has_key(v):
+                raise BaseException ("'%s' is already associated with the feature '%s'" % (v, __implicit_features [v]))
+
+            __implicit_features[v] = feature
+
+    if len (feature.values()) == 0 and len (values) > 0:
+        # This is the first value specified for this feature,
+        # take it as default value
+        feature.set_default(values[0])
+
+    feature.add_values(values)
+
+def validate_value_string (f, value_string):
+    """ Checks that value-string is a valid value-string for the given feature.
+    """
+    if f.free() or value_string in f.values():
+        return
+
+    values = [value_string]
+
+    if f.subfeatures():
+        if not value_string in f.values() and \
+               not value_string in f.subfeatures():
+            values = value_string.split('-')
+
+    # An empty value is allowed for optional features
+    if not values[0] in f.values() and \
+           (values[0] or not f.optional()):
+        raise InvalidValue ("'%s' is not a known value of feature '%s'\nlegal values: '%s'" % (values [0], feature, f.values()))
+
+    for v in values [1:]:
+        # this will validate any subfeature values in value-string
+        implied_subfeature(f, v, values[0])
+
+
+""" Extends the given subfeature with the subvalues.  If the optional
+    value-string is provided, the subvalues are only valid for the given
+    value of the feature. Thus, you could say that
+    <target-platform>mingw is specifc to <toolset>gcc-2.95.2 as follows:
+    
+          extend-subfeature toolset gcc-2.95.2 : target-platform : mingw ;
+
+    feature:        The feature whose subfeature is being extended.
+    
+    value-string:   If supplied, specifies a specific value of the
+                    main feature for which the new subfeature values
+                    are valid.
+    
+    subfeature:     The name of the subfeature.
+    
+    subvalues:      The additional values of the subfeature being defined.
+"""
+def extend_subfeature (feature_name, value_string, subfeature_name, subvalues):
+
+    feature = validate_feature(feature_name)
+    
+    if value_string:
+        validate_value_string(feature, value_string)
+
+    subfeature_name = feature_name + '-' + __get_subfeature_name (subfeature_name, value_string)
+    
+    extend(subfeature_name, subvalues) ;
+    subfeature = __all_features[subfeature_name]
+
+    if value_string == None: value_string = ''
+    
+    if not __subfeature_from_value.has_key(feature):
+        __subfeature_from_value [feature] = {}
+        
+    if not __subfeature_from_value[feature].has_key(value_string):
+        __subfeature_from_value [feature][value_string] = {}
+        
+    for subvalue in subvalues:
+        __subfeature_from_value [feature][value_string][subvalue] = subfeature
+
+@bjam_signature((["feature_name", "value_string", "?"], ["subfeature"],
+                 ["subvalues", "*"], ["attributes", "*"]))
+def subfeature (feature_name, value_string, subfeature, subvalues, attributes = []):
+    """ Declares a subfeature.
+        feature_name:   Root feature that is not a subfeature.
+        value_string:   An optional value-string specifying which feature or
+                        subfeature values this subfeature is specific to,
+                        if any.                
+        subfeature:     The name of the subfeature being declared.
+        subvalues:      The allowed values of this subfeature.
+        attributes:     The attributes of the subfeature.
+    """
+    parent_feature = validate_feature (feature_name)
+    
+    # Add grist to the subfeature name if a value-string was supplied
+    subfeature_name = __get_subfeature_name (subfeature, value_string)
+    
+    if subfeature_name in __all_features[feature_name].subfeatures():
+        message = "'%s' already declared as a subfeature of '%s'" % (subfeature, feature_name)
+        message += " specific to '%s'" % value_string
+        raise BaseException (message)
+
+    # First declare the subfeature as a feature in its own right
+    f = feature (feature_name + '-' + subfeature_name, subvalues, attributes + ['subfeature'])
+    f.set_parent(parent_feature, value_string)
+    
+    parent_feature.add_subfeature(f)
+
+    # Now make sure the subfeature values are known.
+    extend_subfeature (feature_name, value_string, subfeature, subvalues)
+
+
+@bjam_signature((["composite_property_s"], ["component_properties_s", "*"]))
+def compose (composite_property_s, component_properties_s):
+    """ Sets the components of the given composite property.
+
+    All paremeters are <feature>value strings
+    """
+    import property
+
+    component_properties_s = to_seq (component_properties_s)
+    composite_property = property.create_from_string(composite_property_s)
+    f = composite_property.feature()
+
+    if len(component_properties_s) > 0 and isinstance(component_properties_s[0], property.Property):
+        component_properties = component_properties_s
+    else:
+        component_properties = [property.create_from_string(p) for p in component_properties_s]
+                                       
+    if not f.composite():
+        raise BaseException ("'%s' is not a composite feature" % f)
+
+    if __composite_properties.has_key(property):
+        raise BaseException ('components of "%s" already set: %s' % (composite_property, str (__composite_properties[composite_property])))
+
+    if composite_property in component_properties:
+        raise BaseException ('composite property "%s" cannot have itself as a component' % composite_property)
+
+    __composite_properties[composite_property] = component_properties
+
+
+def expand_composite(property):
+    result = [ property ]
+    if __composite_properties.has_key(property):
+        for p in __composite_properties[property]:
+            result.extend(expand_composite(p))
+    return result
+
+
+def get_values (feature, properties):
+    """ Returns all values of the given feature specified by the given property set.
+    """
+    result = []
+    for p in properties:
+        if get_grist (p) == feature:
+            result.append (replace_grist (p, ''))
+    
+    return result
+
+def free_features ():
+    """ Returns all free features.
+    """
+    return __free_features
+
+def expand_composites (properties):
+    """ Expand all composite properties in the set so that all components
+        are explicitly expressed.
+    """
+    explicit_features = set(p.feature() for p in properties)
+
+    result = []
+
+    # now expand composite features
+    for p in properties:
+        expanded = expand_composite(p)
+
+        for x in expanded:
+            if not x in result:
+                f = x.feature()
+
+                if f.free():
+                    result.append (x)
+                elif not x in properties:  # x is the result of expansion
+                    if not f in explicit_features:  # not explicitly-specified
+                        if any(r.feature() == f for r in result):
+                            raise FeatureConflict(
+                                "expansions of composite features result in "
+                                "conflicting values for '%s'\nvalues: '%s'\none contributing composite property was '%s'" %
+                                (f.name(), [r.value() for r in result if r.feature() == f] + [x.value()], p))
+                        else:
+                            result.append (x)
+                elif any(r.feature() == f for r in result):
+                    raise FeatureConflict ("explicitly-specified values of non-free feature '%s' conflict\n"
+                    "existing values: '%s'\nvalue from expanding '%s': '%s'" % (f, 
+                    [r.value() for r in result if r.feature() == f], p, x.value()))
+                else:
+                    result.append (x)
+
+    return result
+
+# Uses Property
+def is_subfeature_of (parent_property, f):
+    """ Return true iff f is an ordinary subfeature of the parent_property's
+        feature, or if f is a subfeature of the parent_property's feature
+        specific to the parent_property's value.
+    """
+    if not f.subfeature():
+        return False
+
+    p = f.parent()
+    if not p:
+        return False
+
+    parent_feature = p[0]
+    parent_value = p[1]
+
+    if parent_feature != parent_property.feature():
+        return False
+
+    if parent_value and parent_value != parent_property.value():
+        return False
+
+    return True
+
+def __is_subproperty_of (parent_property, p):
+    """ As is_subfeature_of, for subproperties.
+    """
+    return is_subfeature_of (parent_property, p.feature())
+
+    
+# Returns true iff the subvalue is valid for the feature.  When the
+# optional value-string is provided, returns true iff the subvalues
+# are valid for the given value of the feature.
+def is_subvalue(feature, value_string, subfeature, subvalue):
+
+    if not value_string:
+        value_string = ''
+
+    if not __subfeature_from_value.has_key(feature):
+        return False
+        
+    if not __subfeature_from_value[feature].has_key(value_string):
+        return False
+        
+    if not __subfeature_from_value[feature][value_string].has_key(subvalue):
+        return False
+
+    if __subfeature_from_value[feature][value_string][subvalue]\
+           != subfeature:
+        return False
+
+    return True
+
+def implied_subfeature (feature, subvalue, value_string):
+    result = __find_implied_subfeature (feature, subvalue, value_string)
+    if not result:
+        raise InvalidValue ("'%s' is not a known subfeature value of '%s%s'" % (subvalue, feature, value_string))
+
+    return result
+
+
+# Uses Property
+def expand (properties):
+    """ Given a property set which may consist of composite and implicit
+        properties and combined subfeature values, returns an expanded,
+        normalized property set with all implicit features expressed
+        explicitly, all subfeature values individually expressed, and all
+        components of composite properties expanded. Non-free features
+        directly expressed in the input properties cause any values of
+        those features due to composite feature expansion to be dropped. If
+        two values of a given non-free feature are directly expressed in the
+        input, an error is issued.
+    """
+    expanded = expand_subfeatures(properties)
+    return expand_composites (expanded)
+    
+# Accepts list of Property objects
+def add_defaults (properties):
+    """ Given a set of properties, add default values for features not
+        represented in the set. 
+        Note: if there's there's ordinary feature F1 and composite feature
+        F2, which includes some value for F1, and both feature have default values,
+        then the default value of F1 will be added, not the value in F2. This might
+        not be right idea: consider
+        
+          feature variant : debug ... ;
+               <variant>debug : .... <runtime-debugging>on
+          feature <runtime-debugging> : off on ;
+          
+          Here, when adding default for an empty property set, we'll get
+        
+            <variant>debug <runtime_debugging>off
+         
+          and that's kind of strange.        
+    """
+    result = [x for x in properties]
+    
+    handled_features = set()
+    for p in properties:
+        # We don't add default for conditional properties.  We don't want
+        # <variant>debug:<define>DEBUG to be takes as specified value for <variant>
+        if not p.condition():
+            handled_features.add(p.feature())
+        
+    missing_top = [f for f in __all_top_features if not f in handled_features]    
+    more = defaults(missing_top)
+    result.extend(more)
+    for p in more:
+        handled_features.add(p.feature())
+       
+    # Add defaults for subfeatures of features which are present
+    for p in result[:]:
+        s = p.feature().subfeatures()
+        more = defaults([s for s in p.feature().subfeatures() if not s in handled_features])
+        for p in more:
+            handled_features.add(p.feature())
+        result.extend(more)
+    
+    return result
+
+def minimize (properties):
+    """ Given an expanded property set, eliminate all redundancy: properties
+        which are elements of other (composite) properties in the set will
+        be eliminated. Non-symmetric properties equal to default values will be
+        eliminated, unless the override a value from some composite property.
+        Implicit properties will be expressed without feature
+        grist, and sub-property values will be expressed as elements joined
+        to the corresponding main property.
+    """    
+    
+    # remove properties implied by composite features
+    components = []
+    for property in properties:
+        if __composite_properties.has_key (property):
+            components.extend(__composite_properties[property])
+    properties = b2.util.set.difference (properties, components)
+    
+    # handle subfeatures and implicit features
+
+    # move subfeatures to the end of the list
+    properties = [p for p in properties if not p.feature().subfeature()] +\
+        [p for p in properties if p.feature().subfeature()]
+    
+    result = []
+    while properties:
+        p = properties[0]
+        f = p.feature()
+        
+        # locate all subproperties of $(x[1]) in the property set
+        subproperties = __select_subproperties (p, properties)
+        
+        if subproperties:
+            # reconstitute the joined property name
+            subproperties.sort ()
+            joined = b2.build.property.Property(p.feature(), p.value() + '-' + '-'.join ([sp.value() for sp in subproperties]))
+            result.append(joined)
+
+            properties = b2.util.set.difference(properties[1:], subproperties)
+
+        else:
+            # eliminate properties whose value is equal to feature's
+            # default and which are not symmetric and which do not
+            # contradict values implied by composite properties.
+            
+            # since all component properties of composites in the set
+            # have been eliminated, any remaining property whose
+            # feature is the same as a component of a composite in the
+            # set must have a non-redundant value.
+            if p.value() != f.default() or f.symmetric():
+                result.append (p)
+                  #\
+                   #or get_grist (fullp) in get_grist (components):
+                   # FIXME: restore above
+                  
+
+            properties = properties[1:]
+
+    return result
+
+
+def split (properties):
+    """ Given a property-set of the form
+        v1/v2/...vN-1/<fN>vN/<fN+1>vN+1/...<fM>vM
+
+    Returns
+        v1 v2 ... vN-1 <fN>vN <fN+1>vN+1 ... <fM>vM
+
+    Note that vN...vM may contain slashes. This is resilient to the
+    substitution of backslashes for slashes, since Jam, unbidden,
+    sometimes swaps slash direction on NT.
+    """
+
+    def split_one (properties):
+        pieces = re.split (__re_slash_or_backslash, properties)
+        result = []
+        
+        for x in pieces:
+            if not get_grist (x) and len (result) > 0 and get_grist (result [-1]):
+                result = result [0:-1] + [ result [-1] + '/' + x ]
+            else:
+                result.append (x)
+        
+        return result
+
+    if isinstance (properties, str):
+        return split_one (properties)
+
+    result = []
+    for p in properties:
+        result += split_one (p)
+    return result
+    
+
+def compress_subproperties (properties):
+    """ Combine all subproperties into their parent properties
+
+        Requires: for every subproperty, there is a parent property.  All
+        features are explicitly expressed.
+        
+        This rule probably shouldn't be needed, but
+        build-request.expand-no-defaults is being abused for unintended
+        purposes and it needs help
+    """
+    result = []
+    matched_subs = set()
+    all_subs = set()
+    for p in properties:
+        f = p.feature()
+        
+        if not f.subfeature():
+            subs = __select_subproperties (p, properties)
+            if subs:
+            
+                matched_subs.update(subs)
+
+                subvalues = '-'.join (sub.value() for sub in subs)
+                result.append(b2.build.property.Property(
+                    p.feature(), p.value() + '-' + subvalues,
+                    p.condition()))
+            else:
+                result.append(p)
+
+        else:
+            all_subs.add(p)
+
+    # TODO: this variables are used just for debugging. What's the overhead?
+    assert all_subs == matched_subs
+
+    return result
+
+######################################################################################
+# Private methods
+
+def __select_subproperties (parent_property, properties):
+    return [ x for x in properties if __is_subproperty_of (parent_property, x) ]
+
+def __get_subfeature_name (subfeature, value_string):
+    if value_string == None: 
+        prefix = ''
+    else:
+        prefix = value_string + ':'
+
+    return prefix + subfeature
+
+
+def __validate_feature_attributes (name, attributes):
+    for attribute in attributes:
+        if not attribute in __all_attributes:
+            raise InvalidAttribute ("unknown attributes: '%s' in feature declaration: '%s'" % (str (b2.util.set.difference (attributes, __all_attributes)), name))
+    
+    if name in __all_features:
+            raise AlreadyDefined ("feature '%s' already defined" % name)
+    elif 'implicit' in attributes and 'free' in attributes:
+        raise InvalidAttribute ("free features cannot also be implicit (in declaration of feature '%s')" % name)
+    elif 'free' in attributes and 'propagated' in attributes:
+        raise InvalidAttribute ("free features cannot also be propagated (in declaration of feature '%s')" % name)
+
+    
+def __validate_feature (feature):
+    """ Generates an error if the feature is unknown.
+    """
+    if not __all_features.has_key (feature):
+        raise BaseException ('unknown feature "%s"' % feature)
+
+
+def __select_subfeatures (parent_property, features):
+    """ Given a property, return the subset of features consisting of all
+        ordinary subfeatures of the property's feature, and all specific
+        subfeatures of the property's feature which are conditional on the
+        property's value.
+    """
+    return [f for f in features if is_subfeature_of (parent_property, f)]
+  
+# FIXME: copy over tests.
diff --git a/jam-files/boost-build/build/generators.jam b/jam-files/boost-build/build/generators.jam
new file mode 100644
index 00000000..1515525f
--- /dev/null
+++ b/jam-files/boost-build/build/generators.jam
@@ -0,0 +1,1408 @@
+# Copyright Vladimir Prus 2002.
+# Copyright Rene Rivera 2006.
+#
+# Distributed under the Boost Software License, Version 1.0.
+#    (See accompanying file LICENSE_1_0.txt or copy at
+#          http://www.boost.org/LICENSE_1_0.txt)
+
+# Manages 'generators' --- objects which can do transformation between different
+# target types and contain algorithm for finding transformation from sources to
+# targets.
+#
+# The main entry point to this module is generators.construct rule. It is given
+# a list of source targets, desired target type and a set of properties. It
+# starts by selecting 'viable generators', which have any chances of producing
+# the desired target type with the required properties. Generators are ranked
+# and a set of the most specific ones is selected.
+#
+# The most specific generators have their 'run' methods called, with the
+# properties and list of sources. Each one selects a target which can be
+# directly consumed, and tries to convert the remaining ones to the types it can
+# consume. This is done by recursively calling 'construct' with all consumable
+# types.
+#
+# If the generator has collected all the targets it needs, it creates targets
+# corresponding to result, and returns it. When all generators have been run,
+# results of one of them are selected and returned as a result.
+#
+# It is quite possible for 'construct' to return more targets that it was asked
+# for. For example, if it were asked to generate a target of type EXE, but the
+# only found generator produces both EXE and TDS (file with debug) information.
+# The extra target will be returned.
+#
+# Likewise, when generator tries to convert sources to consumable types, it can
+# get more targets that it was asked for. The question is what to do with extra
+# targets. Boost.Build attempts to convert them to requested types, and attempts
+# that as early as possible. Specifically, this is done after invoking each
+# generator. TODO: An example is needed to document the rationale for trying
+# extra target conversion at that point.
+#
+# In order for the system to be able to use a specific generator instance 'when
+# needed', the instance needs to be registered with the system using
+# generators.register() or one of its related rules. Unregistered generators may
+# only be run explicitly and will not be considered by Boost.Build when when
+# converting between given target types.
+
+import "class" : new ;
+import errors ;
+import property-set ;
+import sequence ;
+import set ;
+import type ;
+import utility ;
+import virtual-target ;
+
+
+if "--debug-generators" in [ modules.peek : ARGV ]
+{
+    .debug = true ;
+}
+
+
+# Updated cached viable source target type information as needed after a new
+# target type gets defined. This is needed because if a target type is a viable
+# source target type for some generator then all of the target type's derived
+# target types should automatically be considered as viable source target types
+# for the same generator as well. Does nothing if a non-derived target type is
+# passed to it.
+#
+rule update-cached-information-with-a-new-type ( type )
+{
+    local base-type = [ type.base $(type) ] ;
+    if $(base-type)
+    {
+        for local g in $(.vstg-cached-generators)
+        {
+            if $(base-type) in $(.vstg.$(g))
+            {
+                .vstg.$(g) += $(type) ;
+            }
+        }
+
+        for local t in $(.vst-cached-types)
+        {
+            if $(base-type) in $(.vst.$(t))
+            {
+                .vst.$(t) += $(type) ;
+            }
+        }
+    }
+}
+
+
+# Clears cached viable source target type information except for target types
+# and generators with all source types listed as viable. Should be called when
+# something invalidates those cached values by possibly causing some new source
+# types to become viable.
+#
+local rule invalidate-extendable-viable-source-target-type-cache ( )
+{
+    local generators-with-cached-source-types = $(.vstg-cached-generators) ;
+    .vstg-cached-generators = ;
+    for local g in $(generators-with-cached-source-types)
+    {
+        if $(.vstg.$(g)) = *
+        {
+            .vstg-cached-generators += $(g) ;
+        }
+        else
+        {
+            .vstg.$(g) = ;
+        }
+    }
+
+    local types-with-cached-source-types = $(.vst-cached-types) ;
+    .vst-cached-types = ;
+    for local t in $(types-with-cached-source-types)
+    {
+        if $(.vst.$(t)) = *
+        {
+            .vst-cached-types += $(t) ;
+        }
+        else
+        {
+            .vst.$(t) = ;
+        }
+    }
+}
+
+
+# Outputs a debug message if generators debugging is on. Each element of
+# 'message' is checked to see if it is a class instance. If so, instead of the
+# value, the result of 'str' call is output.
+#
+local rule generators.dout ( message * )
+{
+    if $(.debug)
+    {
+        ECHO [ sequence.transform utility.str : $(message) ] ;
+    }
+}
+
+
+local rule indent ( )
+{
+    return $(.indent:J="") ;
+}
+
+
+local rule increase-indent ( )
+{
+    .indent += "    " ;
+}
+
+
+local rule decrease-indent ( )
+{
+    .indent = $(.indent[2-]) ;
+}
+
+
+# Models a generator.
+#
+class generator
+{
+    import generators : indent increase-indent decrease-indent generators.dout ;
+    import set ;
+    import utility ;
+    import feature ;
+    import errors ;
+    import sequence ;
+    import type ;
+    import virtual-target ;
+    import "class" : new ;
+    import property ;
+    import path ;
+
+    EXPORT class@generator : indent increase-indent decrease-indent
+        generators.dout ;
+
+    rule __init__ (
+        id                          # Identifies the generator - should be name
+                                    # of the rule which sets up the build
+                                    # actions.
+
+        composing ?                 # Whether generator processes each source
+                                    # target in turn, converting it to required
+                                    # types. Ordinary generators pass all
+                                    # sources together to the recursive
+                                    # generators.construct-types call.
+
+        : source-types *            # Types that this generator can handle. If
+                                    # empty, the generator can consume anything.
+
+        : target-types-and-names +  # Types the generator will create and,
+                                    # optionally, names for created targets.
+                                    # Each element should have the form
+                                    # type["(" name-pattern ")"], for example,
+                                    # obj(%_x). Generated target name will be
+                                    # found by replacing % with the name of
+                                    # source, provided an explicit name was not
+                                    # specified.
+
+        : requirements *
+    )
+    {
+        self.id = $(id) ;
+        self.rule-name = $(id) ;
+        self.composing = $(composing) ;
+        self.source-types = $(source-types) ;
+        self.target-types-and-names = $(target-types-and-names) ;
+        self.requirements = $(requirements) ;
+
+        for local e in $(target-types-and-names)
+        {
+            # Create three parallel lists: one with the list of target types,
+            # and two other with prefixes and postfixes to be added to target
+            # name. We use parallel lists for prefix and postfix (as opposed to
+            # mapping), because given target type might occur several times, for
+            # example "H H(%_symbols)".
+            local m = [ MATCH ([^\\(]*)(\\((.*)%(.*)\\))? : $(e) ] ;
+            self.target-types += $(m[1]) ;
+            self.name-prefix += $(m[3]:E="") ;
+            self.name-postfix += $(m[4]:E="") ;
+        }
+
+        # Note that 'transform' here, is the same as 'for_each'.
+        sequence.transform type.validate : $(self.source-types) ;
+        sequence.transform type.validate : $(self.target-types) ;
+    }
+
+    ################# End of constructor #################
+
+    rule id ( )
+    {
+        return $(self.id) ;
+    }
+
+    # Returns the list of target type the generator accepts.
+    #
+    rule source-types ( )
+    {
+        return $(self.source-types) ;
+    }
+
+    # Returns the list of target types that this generator produces. It is
+    # assumed to be always the same -- i.e. it can not change depending on some
+    # provided list of sources.
+    #
+    rule target-types ( )
+    {
+        return $(self.target-types) ;
+    }
+
+    # Returns the required properties for this generator. Properties in returned
+    # set must be present in build properties if this generator is to be used.
+    # If result has grist-only element, that build properties must include some
+    # value of that feature.
+    #
+    # XXX: remove this method?
+    #
+    rule requirements ( )
+    {
+        return $(self.requirements) ;
+    }
+    
+    rule set-rule-name ( rule-name )
+    {
+        self.rule-name = $(rule-name) ;
+    }
+    
+    rule rule-name ( )
+    {
+        return $(self.rule-name) ;
+    }
+        
+    # Returns a true value if the generator can be run with the specified
+    # properties.
+    #
+    rule match-rank ( property-set-to-match )
+    {
+        # See if generator requirements are satisfied by 'properties'. Treat a
+        # feature name in requirements (i.e. grist-only element), as matching
+        # any value of the feature.
+        local all-requirements = [ requirements ] ;
+
+        local property-requirements feature-requirements ;
+        for local r in $(all-requirements)
+        {
+            if $(r:G=)
+            {
+                property-requirements += $(r) ;
+            }
+            else
+            {
+                feature-requirements += $(r) ;
+            }
+        }
+
+        local properties-to-match = [ $(property-set-to-match).raw ] ;
+        if $(property-requirements) in $(properties-to-match) &&
+            $(feature-requirements) in $(properties-to-match:G)
+        {
+            return true ;
+        }
+        else
+        {
+            return ;
+        }
+    }
+
+    # Returns another generator which differs from $(self) in
+    #   - id
+    #   - value to <toolset> feature in properties
+    #
+    rule clone ( new-id : new-toolset-properties + )
+    {
+        local g = [ new $(__class__) $(new-id) $(self.composing) :
+            $(self.source-types) : $(self.target-types-and-names) :
+            # Note: this does not remove any subfeatures of <toolset> which
+            # might cause problems.
+            [ property.change $(self.requirements) : <toolset> ]
+            $(new-toolset-properties) ] ;       
+        return $(g) ;
+    }
+
+    # Creates another generator that is the same as $(self), except that if
+    # 'base' is in target types of $(self), 'type' will in target types of the
+    # new generator.
+    #
+    rule clone-and-change-target-type ( base : type )
+    {
+        local target-types ;
+        for local t in $(self.target-types-and-names)
+        {
+            local m = [ MATCH ([^\\(]*)(\\(.*\\))? : $(t) ] ;
+            if $(m) = $(base)
+            {
+                target-types += $(type)$(m[2]:E="") ;
+            }
+            else
+            {
+                target-types += $(t) ;
+            }
+        }
+
+        local g = [ new $(__class__) $(self.id) $(self.composing) :
+            $(self.source-types) : $(target-types) : $(self.requirements) ] ;
+        if $(self.rule-name)
+        {            
+            $(g).set-rule-name $(self.rule-name) ;
+        }        
+        return $(g) ;        
+    }
+
+    # Tries to invoke this generator on the given sources. Returns a list of
+    # generated targets (instances of 'virtual-target') and optionally a set of
+    # properties to be added to the usage-requirements for all the generated
+    # targets. Returning nothing from run indicates that the generator was
+    # unable to create the target.
+    #
+    rule run
+    (
+        project         # Project for which the targets are generated.
+        name ?          # Used when determining the 'name' attribute for all
+                        # generated targets. See the 'generated-targets' method.
+        : property-set  # Desired properties for generated targets.
+        : sources +     # Source targets.
+    )
+    {
+        generators.dout [ indent ] "  ** generator" $(self.id) ;
+        generators.dout [ indent ] "  composing:" $(self.composing) ;
+
+        if ! $(self.composing) && $(sources[2]) && $(self.source-types[2])
+        {
+            errors.error "Unsupported source/source-type combination" ;
+        }
+
+        # We do not run composing generators if no name is specified. The reason
+        # is that composing generator combines several targets, which can have
+        # different names, and it cannot decide which name to give for produced
+        # target. Therefore, the name must be passed.
+        #
+        # This in effect, means that composing generators are runnable only at
+        # the top-level of a transformation graph, or if their name is passed
+        # explicitly. Thus, we dissallow composing generators in the middle. For
+        # example, the transformation CPP -> OBJ -> STATIC_LIB -> RSP -> EXE
+        # will not be allowed as the OBJ -> STATIC_LIB generator is composing.
+        if ! $(self.composing) || $(name)
+        {
+            run-really $(project) $(name) : $(property-set) : $(sources) ;
+        }
+    }
+
+    rule run-really ( project name ? : property-set : sources + )
+    {
+        # Targets that this generator will consume directly.
+        local consumed = ;
+        # Targets that can not be consumed and will be returned as-is.
+        local bypassed = ;
+
+        if $(self.composing)
+        {
+            convert-multiple-sources-to-consumable-types $(project)
+                : $(property-set) : $(sources) : consumed bypassed ;
+        }
+        else
+        {
+            convert-to-consumable-types $(project) $(name) : $(property-set)
+                : $(sources) : : consumed bypassed ;
+        }
+
+        local result ;
+        if $(consumed)
+        {
+            result = [ construct-result $(consumed) : $(project) $(name) :
+                $(property-set) ] ;
+        }
+
+        if $(result)
+        {
+            generators.dout [ indent ] "  SUCCESS: " $(result) ;
+        }
+        else
+        {
+            generators.dout [ indent ] "  FAILURE" ;
+        }
+        generators.dout ;
+        return $(result) ;
+    }
+
+    # Constructs the dependency graph to be returned by this generator.
+    #
+    rule construct-result
+    (
+        consumed +        # Already prepared list of consumable targets.
+                          # Composing generators may receive multiple sources
+                          # all of which will have types matching those in
+                          # $(self.source-types). Non-composing generators with
+                          # multiple $(self.source-types) will receive exactly
+                          # len $(self.source-types) sources with types matching
+                          # those in $(self.source-types). And non-composing
+                          # generators with only a single source type may
+                          # receive multiple sources with all of them of the
+                          # type listed in $(self.source-types).
+        : project name ?
+        : property-set    # Properties to be used for all actions created here.
+    )
+    {
+        local result ;
+        # If this is 1->1 transformation, apply it to all consumed targets in
+        # order.
+        if ! $(self.source-types[2]) && ! $(self.composing)
+        {
+            for local r in $(consumed)
+            {
+                result += [ generated-targets $(r) : $(property-set) :
+                    $(project) $(name) ] ;
+            }
+        }
+        else if $(consumed)
+        {
+            result += [ generated-targets $(consumed) : $(property-set) :
+                $(project) $(name) ] ;
+        }
+        return $(result) ;
+    }
+
+    # Determine target name from fullname (maybe including path components)
+    # Place optional prefix and postfix around basename
+    #
+    rule determine-target-name ( fullname  : prefix ? : postfix ? )
+    {
+        # See if we need to add directory to the target name.
+        local dir  = $(fullname:D) ;            
+        local name = $(fullname:B) ; 
+        
+        name = $(prefix:E=)$(name) ;
+        name = $(name)$(postfix:E=) ;
+
+        if $(dir) && 
+          # Never append '..' to target path.
+          ! [ MATCH .*(\\.\\.).* : $(dir) ] 
+            && 
+          ! [ path.is-rooted $(dir) ]
+        {
+            # Relative path is always relative to the source
+            # directory. Retain it, so that users can have files
+            # with the same in two different subdirectories.
+            name = $(dir)/$(name) ;                
+        }            
+        return $(name) ;
+    }
+
+    # Determine the name of the produced target from the names of the sources.
+    #
+    rule determine-output-name ( sources + )
+    {
+        # The simple case if when a name of source has single dot. Then, we take
+        # the part before dot. Several dots can be caused by:
+        #   - using source file like a.host.cpp, or
+        #   - a type whose suffix has a dot. Say, we can type 'host_cpp' with
+        #     extension 'host.cpp'.
+        # In the first case, we want to take the part up to the last dot. In the
+        # second case -- not sure, but for now take the part up to the last dot
+        # too.
+        name = [ utility.basename [ $(sources[1]).name ] ] ;
+
+        for local s in $(sources[2])
+        {
+            local n2 = [ utility.basename [ $(s).name ] ] ;
+            if $(n2) != $(name)
+            {
+                errors.error "$(self.id): source targets have different names: cannot determine target name" ;
+            }
+        }
+        name = [ determine-target-name [ $(sources[1]).name ] ] ;
+        return $(name) ;
+    }
+
+    # Constructs targets that are created after consuming 'sources'. The result
+    # will be the list of virtual-target, which has the same length as the
+    # 'target-types' attribute and with corresponding types.
+    #
+    # When 'name' is empty, all source targets must have the same 'name'
+    # attribute value, which will be used instead of the 'name' argument.
+    #
+    # The 'name' attribute value for each generated target will be equal to
+    # the 'name' parameter if there is no name pattern for this type. Otherwise,
+    # the '%' symbol in the name pattern will be replaced with the 'name'
+    # parameter to obtain the 'name' attribute.
+    #
+    # For example, if targets types are T1 and T2 (with name pattern "%_x"),
+    # suffixes for T1 and T2 are .t1 and .t2, and source is foo.z, then created
+    # files would be "foo.t1" and "foo_x.t2". The 'name' attribute actually
+    # determines the basename of a file.
+    #
+    # Note that this pattern mechanism has nothing to do with implicit patterns
+    # in make. It is a way to produce a target whose name is different than the
+    # name of its source.
+    #
+    rule generated-targets ( sources + : property-set : project name ? )
+    {
+        if ! $(name)
+        {
+            name = [ determine-output-name $(sources) ] ;
+        }
+
+        # Assign an action for each target.
+        local action = [ action-class ] ;
+        local a = [ class.new $(action) $(sources) : $(self.rule-name) :
+                    $(property-set) ] ;
+
+        # Create generated target for each target type.
+        local targets ;
+        local pre = $(self.name-prefix) ;
+        local post = $(self.name-postfix) ;
+        for local t in $(self.target-types)
+        {
+            local generated-name = $(pre[1])$(name:BS)$(post[1]) ;
+            generated-name = $(generated-name:R=$(name:D)) ;
+            pre = $(pre[2-]) ;
+            post = $(post[2-]) ;
+
+            targets += [ class.new file-target $(generated-name) : $(t) :
+                $(project) : $(a) ] ;
+        }
+
+        return [ sequence.transform virtual-target.register : $(targets) ] ;
+    }
+
+    # Attempts to convert 'sources' to targets of types that this generator can
+    # handle. The intention is to produce the set of targets that can be used
+    # when the generator is run.
+    #
+    rule convert-to-consumable-types
+    (
+        project name ?
+        : property-set
+        : sources +
+        : only-one ?    # Convert 'source' to only one of the source types. If
+                        # there is more that one possibility, report an error.
+        : consumed-var  # Name of the variable which receives all targets which
+                        # can be consumed.
+          bypassed-var  # Name of the variable which receives all targets which
+                        # can not be consumed.
+    )
+    {
+        # We are likely to be passed 'consumed' and 'bypassed' var names. Use
+        # '_' to avoid name conflicts.
+        local _consumed ;
+        local _bypassed ;
+        local missing-types ;
+
+        if $(sources[2])
+        {
+            # Do not know how to handle several sources yet. Just try to pass
+            # the request to other generator.
+            missing-types = $(self.source-types) ;
+        }
+        else
+        {
+            consume-directly $(sources) : _consumed : missing-types ;
+        }
+
+        # No need to search for transformation if some source type has consumed
+        # source and no more source types are needed.
+        if $(only-one) && $(_consumed)
+        {
+            missing-types = ;
+        }
+
+        # TODO: we should check that only one source type if create of
+        # 'only-one' is true.
+        # TODO: consider if consumed/bypassed separation should be done by
+        # 'construct-types'.
+
+        if $(missing-types)
+        {
+            local transformed = [ generators.construct-types $(project) $(name)
+                : $(missing-types) : $(property-set) : $(sources) ] ;
+
+            # Add targets of right type to 'consumed'. Add others to 'bypassed'.
+            # The 'generators.construct' rule has done its best to convert
+            # everything to the required type. There is no need to rerun it on
+            # targets of different types.
+
+            # NOTE: ignoring usage requirements.
+            for local t in $(transformed[2-])
+            {
+                if [ $(t).type ] in $(missing-types)
+                {
+                    _consumed += $(t) ;
+                }
+                else
+                {
+                    _bypassed += $(t) ;
+                }
+            }
+        }
+
+        _consumed = [ sequence.unique $(_consumed) ] ;
+        _bypassed = [ sequence.unique $(_bypassed) ] ;
+
+        # Remove elements of '_bypassed' that are in '_consumed'.
+
+        # Suppose the target type of current generator, X is produced from X_1
+        # and X_2, which are produced from Y by one generator. When creating X_1
+        # from Y, X_2 will be added to 'bypassed'. Likewise, when creating X_2
+        # from Y, X_1 will be added to 'bypassed', but they are also in
+        # 'consumed'. We have to remove them from bypassed, so that generators
+        # up the call stack do not try to convert them.
+
+        # In this particular case, X_1 instance in 'consumed' and X_1 instance
+        # in 'bypassed' will be the same: because they have the same source and
+        # action name, and 'virtual-target.register' will not allow two
+        # different instances. Therefore, it is OK to use 'set.difference'.
+
+        _bypassed = [ set.difference $(_bypassed) : $(_consumed) ] ;
+
+        $(consumed-var) += $(_consumed) ;
+        $(bypassed-var) += $(_bypassed) ;
+    }
+
+    # Converts several files to consumable types. Called for composing
+    # generators only.
+    #
+    rule convert-multiple-sources-to-consumable-types ( project : property-set :
+        sources * : consumed-var bypassed-var )
+    {
+        # We process each source one-by-one, trying to convert it to a usable
+        # type.
+        for local source in $(sources)
+        {
+            local _c ;
+            local _b ;
+            # TODO: need to check for failure on each source.
+            convert-to-consumable-types $(project) : $(property-set) : $(source)
+                : true : _c _b ;
+            if ! $(_c)
+            {
+                generators.dout [ indent ] " failed to convert " $(source) ;
+            }
+            $(consumed-var) += $(_c) ;
+            $(bypassed-var) += $(_b) ;
+        }
+    }
+
+    rule consume-directly ( source : consumed-var : missing-types-var )
+    {
+        local real-source-type = [ $(source).type ] ;
+
+        # If there are no source types, we can consume anything.
+        local source-types = $(self.source-types) ;
+        source-types ?= $(real-source-type) ;
+
+        for local st in $(source-types)
+        {
+            # The 'source' if of the right type already.
+            if $(real-source-type) = $(st) || [ type.is-derived
+                $(real-source-type) $(st) ]
+            {
+                $(consumed-var) += $(source) ;
+            }
+            else
+            {
+                $(missing-types-var) += $(st) ;
+            }
+        }
+    }
+
+    # Returns the class to be used to actions. Default implementation returns
+    # "action".
+    #
+    rule action-class ( )
+    {
+        return "action" ;
+    }
+}
+
+
+# Registers a new generator instance 'g'.
+#
+rule register ( g )
+{
+    .all-generators += $(g) ;
+        
+    # A generator can produce several targets of the same type. We want unique
+    # occurrence of that generator in .generators.$(t) in that case, otherwise,
+    # it will be tried twice and we will get a false ambiguity.
+    for local t in [ sequence.unique [ $(g).target-types ] ]
+    {
+        .generators.$(t) += $(g) ;
+    }
+
+    # Update the set of generators for toolset.
+
+    # TODO: should we check that generator with this id is not already
+    # registered. For example, the fop.jam module intentionally declared two
+    # generators with the same id, so such check will break it.
+    local id = [ $(g).id ] ;
+
+    # Some generators have multiple periods in their name, so a simple $(id:S=)
+    # will not generate the right toolset name. E.g. if id = gcc.compile.c++,
+    # then .generators-for-toolset.$(id:S=) will append to
+    # .generators-for-toolset.gcc.compile, which is a separate value from
+    # .generators-for-toolset.gcc. Correcting this makes generator inheritance
+    # work properly. See also inherit-generators in the toolset module.
+    local base = $(id) ;
+    while $(base:S)
+    {
+        base = $(base:B) ;
+    }
+    .generators-for-toolset.$(base) += $(g) ;
+
+
+    # After adding a new generator that can construct new target types, we need
+    # to clear the related cached viable source target type information for
+    # constructing a specific target type or using a specific generator. Cached
+    # viable source target type lists affected by this are those containing any
+    # of the target types constructed by the new generator or any of their base
+    # target types.
+    #
+    # A more advanced alternative to clearing that cached viable source target
+    # type information would be to expand it with additional source types or
+    # even better - mark it as needing to be expanded on next use.
+    #
+    # Also see the http://thread.gmane.org/gmane.comp.lib.boost.build/19077
+    # mailing list thread for an even more advanced idea of how we could convert
+    # Boost Build's Jamfile processing, target selection and generator selection
+    # into separate steps which would prevent these caches from ever being
+    # invalidated.
+    #
+    # For now we just clear all the cached viable source target type information
+    # that does not simply state 'all types' and may implement a more detailed
+    # algorithm later on if it becomes needed.
+
+    invalidate-extendable-viable-source-target-type-cache ;
+}
+
+
+# Creates a new non-composing 'generator' class instance and registers it.
+# Returns the created instance. Rationale: the instance is returned so that it
+# is possible to first register a generator and then call its 'run' method,
+# bypassing the whole generator selection process.
+#
+rule register-standard ( id : source-types * : target-types + : requirements * )
+{
+    local g = [ new generator $(id) : $(source-types) : $(target-types) :
+        $(requirements) ] ;
+    register $(g) ;
+    return $(g) ;
+}
+
+
+# Creates a new composing 'generator' class instance and registers it.
+#
+rule register-composing ( id : source-types * : target-types + : requirements *
+    )
+{
+    local g = [ new generator $(id) true : $(source-types) : $(target-types) :
+        $(requirements) ] ;
+    register $(g) ;
+    return $(g) ;
+}
+
+
+# Returns all generators belonging to the given 'toolset', i.e. whose ids are
+# '$(toolset).<something>'.
+#
+rule generators-for-toolset ( toolset )
+{
+    return $(.generators-for-toolset.$(toolset)) ;
+}
+
+
+# Make generator 'overrider-id' be preferred to 'overridee-id'. If, when
+# searching for generators that could produce a target of a certain type, both
+# those generators are among viable generators, the overridden generator is
+# immediately discarded.
+#
+# The overridden generators are discarded immediately after computing the list
+# of viable generators but before running any of them.
+#
+rule override ( overrider-id : overridee-id )
+{
+    .override.$(overrider-id) += $(overridee-id) ;
+}
+
+
+# Returns a list of source type which can possibly be converted to 'target-type'
+# by some chain of generator invocation.
+#
+# More formally, takes all generators for 'target-type' and returns a union of
+# source types for those generators and result of calling itself recursively on
+# source types.
+#
+# Returns '*' in case any type should be considered a viable source type for the
+# given type.
+#
+local rule viable-source-types-real ( target-type )
+{
+    local result ;
+
+    # 't0' is the initial list of target types we need to process to get a list
+    # of their viable source target types. New target types will not be added to
+    # this list.
+    local t0 = [ type.all-bases $(target-type) ] ;
+
+    # 't' is the list of target types which have not yet been processed to get a
+    # list of their viable source target types. This list will get expanded as
+    # we locate more target types to process.
+    local t = $(t0) ;
+
+    while $(t)
+    {
+        # Find all generators for the current type. Unlike
+        # 'find-viable-generators' we do not care about the property-set.
+        local generators = $(.generators.$(t[1])) ;
+        t = $(t[2-]) ;
+
+        while $(generators)
+        {
+            local g = $(generators[1]) ;
+            generators = $(generators[2-]) ;
+
+            if ! [ $(g).source-types ]
+            {
+                # Empty source types -- everything can be accepted.
+                result = * ;
+                # This will terminate this loop.
+                generators = ;
+                # This will terminate the outer loop.
+                t = ;
+            }
+
+            for local source-type in [ $(g).source-types ]
+            {
+                if ! $(source-type) in $(result)
+                {
+                    # If a generator accepts a 'source-type' it will also
+                    # happily accept any type derived from it.
+                    for local n in [ type.all-derived $(source-type) ]
+                    {
+                        if ! $(n) in $(result)
+                        {
+                            # Here there is no point in adding target types to
+                            # the list of types to process in case they are or
+                            # have already been on that list. We optimize this
+                            # check by realizing that we only need to avoid the
+                            # original target type's base types. Other target
+                            # types that are or have been on the list of target
+                            # types to process have been added to the 'result'
+                            # list as well and have thus already been eliminated
+                            # by the previous if.
+                            if ! $(n) in $(t0)
+                            {
+                                t += $(n) ;
+                            }
+                            result += $(n) ;
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    return $(result) ;
+}
+
+
+# Helper rule, caches the result of 'viable-source-types-real'.
+#
+rule viable-source-types ( target-type )
+{
+    local key = .vst.$(target-type) ;
+    if ! $($(key))
+    {
+        .vst-cached-types += $(target-type) ;
+        local v = [ viable-source-types-real $(target-type) ] ;
+        if ! $(v)
+        {
+            v = none ;
+        }
+        $(key) = $(v) ;
+    }
+
+    if $($(key)) != none
+    {
+        return $($(key)) ;
+    }
+}
+
+
+# Returns the list of source types, which, when passed to 'run' method of
+# 'generator', has some change of being eventually used (probably after
+# conversion by other generators).
+#
+# Returns '*' in case any type should be considered a viable source type for the
+# given generator.
+#
+rule viable-source-types-for-generator-real ( generator )
+{
+    local source-types = [ $(generator).source-types ] ;
+    if ! $(source-types)
+    {
+        # If generator does not specify any source types, it might be a special
+        # generator like builtin.lib-generator which just relays to other
+        # generators. Return '*' to indicate that any source type is possibly
+        # OK, since we do not know for sure.
+        return * ;
+    }
+    else
+    {
+        local result ;
+        while $(source-types)
+        {
+            local s = $(source-types[1]) ;
+            source-types = $(source-types[2-]) ;
+            local viable-sources = [ generators.viable-source-types $(s) ] ;
+            if $(viable-sources) = *
+            {
+                result = * ;
+                source-types = ;  # Terminate the loop.
+            }
+            else
+            {
+                result += [ type.all-derived $(s) ] $(viable-sources) ;
+            }
+        }
+        return [ sequence.unique $(result) ] ;
+    }
+}
+
+
+# Helper rule, caches the result of 'viable-source-types-for-generator'.
+#
+local rule viable-source-types-for-generator ( generator )
+{
+    local key = .vstg.$(generator) ;
+    if ! $($(key))
+    {
+        .vstg-cached-generators += $(generator) ;
+        local v = [ viable-source-types-for-generator-real $(generator) ] ;
+        if ! $(v)
+        {
+            v = none ;
+        }
+        $(key) = $(v) ;
+    }
+
+    if $($(key)) != none
+    {
+        return $($(key)) ;
+    }
+}
+
+
+# Returns usage requirements + list of created targets.
+#
+local rule try-one-generator-really ( project name ? : generator : target-type
+    : property-set : sources * )
+{
+    local targets =
+        [ $(generator).run $(project) $(name) : $(property-set) : $(sources) ] ;
+
+    local usage-requirements ;
+    local success ;
+
+    generators.dout [ indent ] returned $(targets) ;
+
+    if $(targets)
+    {
+        success = true ;
+
+        if  [ class.is-a $(targets[1]) : property-set ]
+        {
+            usage-requirements = $(targets[1]) ;
+            targets = $(targets[2-]) ;
+        }
+        else
+        {
+            usage-requirements = [ property-set.empty ] ;
+        }
+    }
+
+    generators.dout [ indent ] "  generator" [ $(generator).id ] " spawned " ;
+    generators.dout [ indent ] " " $(targets) ;
+    if $(usage-requirements)
+    {
+        generators.dout [ indent ] "  with usage requirements:" $(x) ;
+    }
+
+    if $(success)
+    {
+        return $(usage-requirements) $(targets) ;
+    }
+}
+
+
+# Checks if generator invocation can be pruned, because it is guaranteed to
+# fail. If so, quickly returns an empty list. Otherwise, calls
+# try-one-generator-really.
+#
+local rule try-one-generator ( project name ? : generator : target-type
+    : property-set : sources * )
+{
+    local source-types ;
+    for local s in $(sources)
+    {
+        source-types += [ $(s).type ] ;
+    }
+    local viable-source-types = [ viable-source-types-for-generator $(generator)
+        ] ;
+
+    if  $(source-types) && $(viable-source-types) != * &&
+        ! [ set.intersection $(source-types) : $(viable-source-types) ]
+    {
+        local id = [ $(generator).id ] ;
+        generators.dout [ indent ] "  ** generator '$(id)' pruned" ;
+        #generators.dout [ indent ] "source-types" '$(source-types)' ;
+        #generators.dout [ indent ] "viable-source-types" '$(viable-source-types)' ;
+    }
+    else
+    {
+        return [ try-one-generator-really $(project) $(name) : $(generator) :
+            $(target-type) : $(property-set) : $(sources) ] ;
+    }
+}
+
+
+rule construct-types ( project name ? : target-types + : property-set
+    : sources + )
+{
+    local result ;
+    local matched-types ;
+    local usage-requirements = [ property-set.empty ] ;
+    for local t in $(target-types)
+    {
+        local r = [ construct $(project) $(name) : $(t) : $(property-set) :
+            $(sources) ] ;
+        if $(r)
+        {
+            usage-requirements = [ $(usage-requirements).add $(r[1]) ] ;
+            result += $(r[2-]) ;
+            matched-types += $(t) ;
+        }
+    }
+    # TODO: have to introduce parameter controlling if several types can be
+    # matched and add appropriate checks.
+
+    # TODO: need to review the documentation for 'construct' to see if it should
+    # return $(source) even if nothing can be done with it. Currents docs seem
+    # to imply that, contrary to the behaviour.
+    if $(result)
+    {
+        return $(usage-requirements) $(result) ;
+    }
+    else
+    {
+        return $(usage-requirements) $(sources) ;
+    }
+}
+
+
+# Ensures all 'targets' have their type. If this is not so, exists with error.
+#
+local rule ensure-type ( targets * )
+{
+    for local t in $(targets)
+    {
+        if ! [ $(t).type ]
+        {
+            errors.error "target" [ $(t).str ] "has no type" ;
+        }
+    }
+}
+
+
+# Returns generators which can be used to construct target of specified type
+# with specified properties. Uses the following algorithm:
+# - iterates over requested target-type and all its bases (in the order returned
+#   by type.all-bases).
+# - for each type find all generators that generate that type and whose
+#   requirements are satisfied by properties.
+# - if the set of generators is not empty, returns that set.
+#
+# Note: this algorithm explicitly ignores generators for base classes if there
+# is at least one generator for the requested target-type.
+#
+local rule find-viable-generators-aux ( target-type : property-set )
+{
+    # Select generators that can create the required target type.
+    local viable-generators = ;
+    local generator-rank = ;
+
+    import type ;
+    local t = [ type.all-bases $(target-type) ] ;
+
+    generators.dout [ indent ] find-viable-generators target-type= $(target-type)
+        property-set= [ $(property-set).as-path ] ;
+
+    # Get the list of generators for the requested type. If no generator is
+    # registered, try base type, and so on.
+    local generators ;
+    while $(t[1])
+    {
+        generators.dout [ indent ] "trying type" $(t[1]) ;
+        if $(.generators.$(t[1]))
+        {
+            generators.dout [ indent ] "there are generators for this type" ;
+            generators = $(.generators.$(t[1])) ;
+
+            if $(t[1]) != $(target-type)
+            {
+                # We are here because there were no generators found for
+                # target-type but there are some generators for its base type.
+                # We will try to use them, but they will produce targets of
+                # base type, not of 'target-type'. So, we clone the generators
+                # and modify the list of target types.
+                local generators2 ;
+                for local g in $(generators)
+                {
+                    # generators.register adds a generator to the list of
+                    # generators for toolsets, which is a bit strange, but
+                    # should work. That list is only used when inheriting a
+                    # toolset, which should have been done before running
+                    # generators.
+                    generators2 += [ $(g).clone-and-change-target-type $(t[1]) :
+                        $(target-type) ] ;
+                    generators.register $(generators2[-1]) ;
+                }
+                generators = $(generators2) ;
+            }
+            t = ;
+        }
+        t = $(t[2-]) ;
+    }
+
+    for local g in $(generators)
+    {
+        generators.dout [ indent ] "trying generator" [ $(g).id ] "(" [ $(g).source-types ] -> [ $(g).target-types ] ")" ;
+
+        local m = [ $(g).match-rank $(property-set) ] ;
+        if $(m)
+        {
+            generators.dout [ indent ] "  is viable" ;
+            viable-generators += $(g) ;
+        }
+    }
+
+    return $(viable-generators) ;
+}
+
+
+rule find-viable-generators ( target-type : property-set )
+{
+    local key = $(target-type).$(property-set) ;
+    local l = $(.fv.$(key)) ;
+    if ! $(l)
+    {
+        l = [ find-viable-generators-aux $(target-type) : $(property-set) ] ;
+        if ! $(l)
+        {
+            l = none ;
+        }
+        .fv.$(key) = $(l) ;
+    }
+
+    if $(l) = none
+    {
+        l = ;
+    }
+
+    local viable-generators ;
+    for local g in $(l)
+    {
+        # Avoid trying the same generator twice on different levels.
+        if ! $(g) in $(.active-generators)
+        {
+            viable-generators += $(g) ;
+        }
+        else
+        {
+            generators.dout [ indent ] "   generator " [ $(g).id ] "is active, discaring" ;
+        }        
+    }
+
+    # Generators which override 'all'.
+    local all-overrides ;
+    # Generators which are overriden.
+    local overriden-ids ;
+    for local g in $(viable-generators)
+    {
+        local id = [ $(g).id ] ;
+        local this-overrides = $(.override.$(id)) ;
+        overriden-ids += $(this-overrides) ;
+        if all in $(this-overrides)
+        {
+            all-overrides += $(g) ;
+        }
+    }
+    if $(all-overrides)
+    {
+        viable-generators = $(all-overrides) ;
+    }
+    local result ;
+    for local g in $(viable-generators)
+    {
+        if ! [ $(g).id ] in $(overriden-ids)
+        {
+            result += $(g) ;
+        }
+    }
+
+    return $(result) ;
+}
+
+
+.construct-stack = ;
+
+
+# Attempts to construct a target by finding viable generators, running them and
+# selecting the dependency graph.
+#
+local rule construct-really ( project name ? : target-type : property-set :
+    sources * )
+{
+    viable-generators = [ find-viable-generators $(target-type) :
+        $(property-set) ] ;
+
+    generators.dout [ indent ] "*** " [ sequence.length $(viable-generators) ]
+        " viable generators" ;
+
+    local result ;
+    local generators-that-succeeded ;
+    for local g in $(viable-generators)
+    {
+        # This variable will be restored on exit from this scope.
+        local .active-generators = $(g) $(.active-generators) ;
+
+        local r = [ try-one-generator $(project) $(name) : $(g) : $(target-type)
+            : $(property-set) : $(sources) ] ;
+
+        if $(r)
+        {
+            generators-that-succeeded += $(g) ;
+            if $(result)
+            {
+                ECHO "Error: ambiguity found when searching for best transformation" ;
+                ECHO "Trying to produce type '$(target-type)' from: " ;
+                for local s in $(sources)
+                {
+                    ECHO " - " [ $(s).str ] ;
+                }
+                ECHO "Generators that succeeded:" ;
+                for local g in $(generators-that-succeeded)
+                {
+                    ECHO " - " [ $(g).id ] ;
+                }
+                ECHO "First generator produced: " ;
+                for local t in $(result[2-])
+                {
+                    ECHO " - " [ $(t).str ] ;
+                }
+                ECHO "Second generator produced: " ;
+                for local t in $(r[2-])
+                {
+                    ECHO " - " [ $(t).str ] ;
+                }
+                EXIT ;
+            }
+            else
+            {
+                result = $(r) ;
+            }
+        }
+    }
+
+    return $(result) ;
+}
+
+
+# Attempts to create a target of 'target-type' with 'properties' from 'sources'.
+# The 'sources' are treated as a collection of *possible* ingridients, i.e.
+# there is no obligation to consume them all.
+#
+# Returns a list of targets. When this invocation is first instance of
+# 'construct' in stack, returns only targets of requested 'target-type',
+# otherwise, returns also unused sources and additionally generated targets.
+#
+# If 'top-level' is set, does not suppress generators that are already
+# used in the stack. This may be useful in cases where a generator
+# has to build a metatargets -- for example a target corresponding to
+# built tool.
+#
+rule construct ( project name ? : target-type : property-set * : sources * : top-level ? )
+{
+    local saved-stack ;
+    if $(top-level)
+    {
+        saved-active = $(.active-generators) ;
+        .active-generators = ;
+    }
+        
+    if (.construct-stack)
+    {
+        ensure-type $(sources) ;
+    }
+
+    .construct-stack += 1 ;
+
+    increase-indent ;
+
+    if $(.debug)
+    {
+        generators.dout [ indent ] "*** construct" $(target-type) ;
+
+        for local s in $(sources)
+        {
+            generators.dout [ indent ] "    from" $(s) ;
+        }
+        generators.dout [ indent ] "    properties:" [ $(property-set).raw ] ;
+    }
+
+    local result = [ construct-really $(project) $(name) : $(target-type) :
+        $(property-set) : $(sources) ] ;
+
+    decrease-indent ;
+
+    .construct-stack = $(.construct-stack[2-]) ;
+    
+    if $(top-level)
+    {
+        .active-generators = $(saved-active) ;
+    }
+
+    return $(result) ;
+}
+
+# Given 'result', obtained from some generator or generators.construct, adds
+# 'raw-properties' as usage requirements to it. If result already contains usage
+# requirements -- that is the first element of result of an instance of the
+# property-set class, the existing usage requirements and 'raw-properties' are
+# combined.
+#
+rule add-usage-requirements ( result * : raw-properties * )
+{
+    if $(result)
+    {
+        if [ class.is-a $(result[1]) : property-set ]
+        {
+            return [ $(result[1]).add-raw $(raw-properties) ] $(result[2-]) ;
+        }
+        else
+        {
+            return [ property-set.create $(raw-properties) ] $(result) ;
+        }
+    }
+}
+
+rule dump ( )
+{
+    for local g in $(.all-generators)
+    {
+        ECHO [ $(g).id ] ":" [ $(g).source-types ] -> [ $(g).target-types ] ;            
+    }    
+}
+
diff --git a/jam-files/boost-build/build/generators.py b/jam-files/boost-build/build/generators.py
new file mode 100644
index 00000000..2c59f7ca
--- /dev/null
+++ b/jam-files/boost-build/build/generators.py
@@ -0,0 +1,1089 @@
+# Status: being ported by Vladimir Prus
+# Base revision: 48649
+# TODO: replace the logging with dout
+
+# Copyright Vladimir Prus 2002.
+# Copyright Rene Rivera 2006.
+#
+# Distributed under the Boost Software License, Version 1.0.
+#    (See accompanying file LICENSE_1_0.txt or copy at
+#          http://www.boost.org/LICENSE_1_0.txt)
+
+#  Manages 'generators' --- objects which can do transformation between different
+#  target types and contain algorithm for finding transformation from sources
+#  to targets.
+#
+#  The main entry point to this module is generators.construct rule. It is given
+#  a list of source targets, desired target type and a set of properties.
+#  It starts by selecting 'viable generators', which have any chances of producing
+#  the desired target type with the required properties. Generators are ranked and
+#  a set of most specific ones is selected.
+# 
+#  The most specific generators have their 'run' methods called, with the properties
+#  and list of sources. Each one selects target which can be directly consumed, and
+#  tries to convert the remaining ones to the types it can consume. This is done
+#  by recursively calling 'construct' with all consumable types.
+#
+#  If the generator has collected all the targets it needs, it creates targets 
+#  corresponding to result, and returns it. When all generators have been run,
+#  results of one of them are selected and returned as result.
+#
+#  It's quite possible that 'construct' returns more targets that it was asked for.
+#  For example, it was asked to target type EXE, but the only found generators produces
+#  both EXE and TDS (file with debug) information. The extra target will be returned.
+#
+#  Likewise, when generator tries to convert sources to consumable types, it can get
+#  more targets that it was asked for. The question is what to do with extra targets.
+#  Boost.Build attempts to convert them to requested types, and attempts as early as
+#  possible. Specifically, this is done after invoking each generator. (Later I'll 
+#  document the rationale for trying extra target conversion at that point).
+#
+#  That early conversion is not always desirable. Suppose a generator got a source of
+#  type Y and must consume one target of type X_1 and one target of type X_2.
+#  When converting Y to X_1 extra target of type Y_2 is created. We should not try to
+#  convert it to type X_1, because if we do so, the generator will get two targets
+#  of type X_1, and will be at loss as to which one to use. Because of that, the
+#  'construct' rule has a parameter, telling if multiple targets can be returned. If
+#  the parameter is false, conversion of extra targets is not performed.
+
+
+import re
+import cStringIO
+import os.path
+
+from virtual_target import Subvariant
+import virtual_target, type, property_set, property
+from b2.util.logger import *
+from b2.util.utility import *
+from b2.util import set
+from b2.util.sequence import unique
+import b2.util.sequence as sequence
+from b2.manager import get_manager
+import b2.build.type
+
+def reset ():
+    """ Clear the module state. This is mainly for testing purposes.
+    """
+    global __generators, __type_to_generators, __generators_for_toolset, __construct_stack
+    global __overrides, __active_generators
+    global __viable_generators_cache, __viable_source_types_cache
+    global __vstg_cached_generators, __vst_cached_types
+
+    __generators = {}
+    __type_to_generators = {}
+    __generators_for_toolset = {}
+    __overrides = {}
+    
+    # TODO: can these be global? 
+    __construct_stack = []
+    __viable_generators_cache = {}
+    __viable_source_types_cache = {}
+    __active_generators = []
+
+    __vstg_cached_generators = []
+    __vst_cached_types = []
+
+reset ()
+
+_re_separate_types_prefix_and_postfix = re.compile ('([^\\(]*)(\\((.*)%(.*)\\))?')
+_re_match_type = re.compile('([^\\(]*)(\\(.*\\))?')
+
+
+__debug = None
+__indent = ""
+
+def debug():
+    global __debug
+    if __debug is None:
+        __debug = "--debug-generators" in bjam.variable("ARGV")        
+    return __debug
+
+def increase_indent():
+    global __indent
+    __indent += "    "
+
+def decrease_indent():
+    global __indent
+    __indent = __indent[0:-4]
+
+
+# Updated cached viable source target type information as needed after a new
+# derived target type gets added. This is needed because if a target type is a
+# viable source target type for some generator then all of the target type's
+# derived target types are automatically viable as source target types for the
+# same generator. Does nothing if a non-derived target type is passed to it.
+#
+def update_cached_information_with_a_new_type(type):
+
+    base_type = b2.build.type.base(type)
+
+    if base_type:
+        for g in __vstg_cached_generators:
+            if base_type in __viable_source_types_cache.get(g, []):
+                __viable_source_types_cache[g].append(type)
+
+        for t in __vst_cached_types:
+            if base_type in __viable_source_types_cache.get(t, []):
+                __viable_source_types_cache[t].append(type)
+
+# Clears cached viable source target type information except for target types
+# and generators with all source types listed as viable. Should be called when
+# something invalidates those cached values by possibly causing some new source
+# types to become viable.
+#
+def invalidate_extendable_viable_source_target_type_cache():
+
+    global __vstg_cached_generators
+    generators_with_cached_source_types = __vstg_cached_generators
+    __vstg_cached_generators = []
+
+    for g in generators_with_cached_source_types:
+        if __viable_source_types_cache.has_key(g):
+            if __viable_source_types_cache[g] == ["*"]:
+                __vstg_cached_generators.append(g)
+            else:
+                del __viable_source_types_cache[g]
+
+    global __vst_cached_types
+    types_with_cached_sources_types = __vst_cached_types
+    __vst_cached_types = []
+    for t in types_with_cached_sources_types:
+        if __viable_source_types_cache.has_key(t):
+            if __viable_source_types_cache[t] == ["*"]:
+                __vst_cached_types.append(t)
+            else:
+                del __viable_source_types_cache[t]
+ 
+def dout(message):
+    if debug():
+        print __indent + message
+
+class Generator:
+    """ Creates a generator.
+            manager:                 the build manager.
+            id:                      identifies the generator
+            
+            rule:                    the rule which sets up build actions.
+
+            composing:               whether generator processes each source target in
+                                     turn, converting it to required types.
+                                     Ordinary generators pass all sources together to
+                                     recusrive generators.construct_types call.
+
+            source_types (optional): types that this generator can handle
+    
+            target_types_and_names:  types the generator will create and, optionally, names for
+                                     created targets. Each element should have the form
+                                         type["(" name-pattern ")"]
+                                     for example, obj(%_x). Name of generated target will be found
+                                     by replacing % with the name of source, provided explicit name
+                                     was not specified.
+    
+            requirements (optional)
+            
+            NOTE: all subclasses must have a similar signature for clone to work!
+    """
+    def __init__ (self, id, composing, source_types, target_types_and_names, requirements = []):
+        assert(not isinstance(source_types, str))
+        assert(not isinstance(target_types_and_names, str))
+        self.id_ = id
+        self.composing_ = composing
+        self.source_types_ = source_types
+        self.target_types_and_names_ = target_types_and_names
+        self.requirements_ = requirements
+        
+        self.target_types_ = []
+        self.name_prefix_ = []
+        self.name_postfix_ = []
+        
+        for e in target_types_and_names:
+            # Create three parallel lists: one with the list of target types,
+            # and two other with prefixes and postfixes to be added to target 
+            # name. We use parallel lists for prefix and postfix (as opposed
+            # to mapping), because given target type might occur several times,
+            # for example "H H(%_symbols)".
+            m = _re_separate_types_prefix_and_postfix.match (e)
+            
+            if not m:
+                raise BaseException ("Invalid type and name '%s' in declaration of type '%s'" % (e, id))
+            
+            target_type = m.group (1)
+            if not target_type: target_type = ''
+            prefix = m.group (3)
+            if not prefix: prefix = ''
+            postfix = m.group (4)
+            if not postfix: postfix = ''
+            
+            self.target_types_.append (target_type)
+            self.name_prefix_.append (prefix)
+            self.name_postfix_.append (postfix)
+
+        for x in self.source_types_:
+            type.validate (x)
+
+        for x in self.target_types_:
+            type.validate (x)
+
+    def clone (self, new_id, new_toolset_properties):
+        """ Returns another generator which differers from $(self) in
+              - id
+              - value to <toolset> feature in properties
+        """
+        return self.__class__ (new_id, 
+                               self.composing_, 
+                               self.source_types_, 
+                               self.target_types_and_names_,
+                               # Note: this does not remove any subfeatures of <toolset>
+                               # which might cause problems
+                               property.change (self.requirements_, '<toolset>') + new_toolset_properties)
+
+    def clone_and_change_target_type(self, base, type):
+        """Creates another generator that is the same as $(self), except that
+        if 'base' is in target types of $(self), 'type' will in target types
+        of the new generator."""
+        target_types = []
+        for t in self.target_types_and_names_:
+            m = _re_match_type.match(t)
+            assert m
+            
+            if m.group(1) == base:
+                if m.group(2):
+                    target_types.append(type + m.group(2))
+                else:
+                    target_types.append(type)
+            else:
+                target_types.append(t)
+
+        return self.__class__(self.id_, self.composing_,
+                              self.source_types_,
+                              target_types,
+                              self.requirements_)
+                              
+
+    def id(self):
+        return self.id_
+
+    def source_types (self):
+        """ Returns the list of target type the generator accepts.
+        """
+        return self.source_types_
+
+    def target_types (self):
+        """ Returns the list of target types that this generator produces.
+            It is assumed to be always the same -- i.e. it cannot change depending
+            list of sources.    
+        """
+        return self.target_types_
+
+    def requirements (self):
+        """ Returns the required properties for this generator. Properties
+            in returned set must be present in build properties if this 
+            generator is to be used. If result has grist-only element,
+            that build properties must include some value of that feature.
+        """
+        return self.requirements_
+
+    def match_rank (self, ps):
+        """ Returns true if the generator can be run with the specified 
+            properties.
+        """
+        # See if generator's requirements are satisfied by
+        # 'properties'.  Treat a feature name in requirements
+        # (i.e. grist-only element), as matching any value of the
+        # feature.
+        all_requirements = self.requirements ()
+        
+        property_requirements = []
+        feature_requirements = []
+        # This uses strings because genenator requirements allow
+        # the '<feature>' syntax without value and regular validation
+        # is not happy about that.
+        for r in all_requirements:
+            if get_value (r):
+                property_requirements.append (r)
+
+            else:
+                feature_requirements.append (r)
+                
+        return all(ps.get(get_grist(s)) == [get_value(s)] for s in property_requirements) \
+               and all(ps.get(get_grist(s)) for s in feature_requirements)
+        
+    def run (self, project, name, prop_set, sources):
+        """ Tries to invoke this generator on the given sources. Returns a
+            list of generated targets (instances of 'virtual-target').
+
+            project:        Project for which the targets are generated.
+            
+            name:           Determines the name of 'name' attribute for 
+                            all generated targets. See 'generated_targets' method.
+                            
+            prop_set:       Desired properties for generated targets.
+            
+            sources:        Source targets.
+        """
+        
+        if project.manager ().logger ().on ():
+            project.manager ().logger ().log (__name__, "  generator '%s'" % self.id_)
+            project.manager ().logger ().log (__name__, "  composing: '%s'" % self.composing_)
+        
+        if not self.composing_ and len (sources) > 1 and len (self.source_types_) > 1:
+            raise BaseException ("Unsupported source/source_type combination")
+                
+        # We don't run composing generators if no name is specified. The reason
+        # is that composing generator combines several targets, which can have
+        # different names, and it cannot decide which name to give for produced
+        # target. Therefore, the name must be passed.
+        #
+        # This in effect, means that composing generators are runnable only
+        # at top-level of transofrmation graph, or if name is passed explicitly.
+        # Thus, we dissallow composing generators in the middle. For example, the
+        # transofrmation CPP -> OBJ -> STATIC_LIB -> RSP -> EXE won't be allowed 
+        # (the OBJ -> STATIC_LIB generator is composing)
+        if not self.composing_ or name:
+            return self.run_really (project, name, prop_set, sources)
+        else:
+            return []
+
+    def run_really (self, project, name, prop_set, sources):
+
+        # consumed: Targets that this generator will consume directly.
+        # bypassed: Targets that can't be consumed and will be returned as-is.
+        
+        if self.composing_:
+            (consumed, bypassed) = self.convert_multiple_sources_to_consumable_types (project, prop_set, sources)
+        else:
+            (consumed, bypassed) = self.convert_to_consumable_types (project, name, prop_set, sources)
+                
+        result = []
+        if consumed:
+            result = self.construct_result (consumed, project, name, prop_set)
+            result.extend (bypassed)
+
+        if result:
+            if project.manager ().logger ().on ():
+                project.manager ().logger ().log (__name__, "  SUCCESS: ", result)
+
+        else:
+                project.manager ().logger ().log (__name__, "  FAILURE")
+
+        return result
+
+    def construct_result (self, consumed, project, name, prop_set):
+        """ Constructs the dependency graph that will be returned by this 
+            generator.
+                consumed:        Already prepared list of consumable targets
+                                 If generator requires several source files will contain 
+                                 exactly len $(self.source_types_) targets with matching types
+                                 Otherwise, might contain several targets with the type of 
+                                 self.source_types_ [0]
+                project:
+                name:
+                prop_set:        Properties to be used for all actions create here
+        """
+        result = []
+        # If this is 1->1 transformation, apply it to all consumed targets in order.
+        if len (self.source_types_) < 2 and not self.composing_:
+
+            for r in consumed:
+                result.extend (self.generated_targets ([r], prop_set, project, name))
+
+        else:
+
+            if consumed:
+                result.extend (self.generated_targets (consumed, prop_set, project, name))
+
+        return result
+
+    def determine_target_name(self, fullname):
+        # Determine target name from fullname (maybe including path components)
+        # Place optional prefix and postfix around basename
+
+        dir = os.path.dirname(fullname)
+        name = os.path.basename(fullname)
+
+        if dir and not ".." in dir and not os.path.isabs(dir):
+            # Relative path is always relative to the source
+            # directory. Retain it, so that users can have files
+            # with the same in two different subdirectories.
+            name = dir + "/" + name
+
+        return name
+
+    def determine_output_name(self, sources):
+        """Determine the name of the produced target from the
+        names of the sources."""
+        
+        # The simple case if when a name
+        # of source has single dot. Then, we take the part before
+        # dot. Several dots can be caused by:
+        # - Using source file like a.host.cpp
+        # - A type which suffix has a dot. Say, we can
+        #   type 'host_cpp' with extension 'host.cpp'.
+        # In the first case, we want to take the part till the last
+        # dot. In the second case -- no sure, but for now take
+        # the part till the last dot too.
+        name = os.path.splitext(sources[0].name())[0]
+                        
+        for s in sources[1:]:
+            n2 = os.path.splitext(s.name())
+            if n2 != name:
+                get_manager().errors()(
+                    "%s: source targets have different names: cannot determine target name"
+                    % (self.id_))
+                        
+        # Names of sources might include directory. We should strip it.
+        return self.determine_target_name(sources[0].name())
+        
+        
+    def generated_targets (self, sources, prop_set, project, name):
+        """ Constructs targets that are created after consuming 'sources'.
+            The result will be the list of virtual-target, which the same length
+            as 'target_types' attribute and with corresponding types.
+            
+            When 'name' is empty, all source targets must have the same value of 
+            the 'name' attribute, which will be used instead of the 'name' argument.
+            
+            The value of 'name' attribute for each generated target will be equal to
+            the 'name' parameter if there's no name pattern for this type. Otherwise,
+            the '%' symbol in the name pattern will be replaced with the 'name' parameter 
+            to obtain the 'name' attribute.
+            
+            For example, if targets types are T1 and T2(with name pattern "%_x"), suffixes
+            for T1 and T2 are .t1 and t2, and source if foo.z, then created files would
+            be "foo.t1" and "foo_x.t2". The 'name' attribute actually determined the
+            basename of a file.
+            
+            Note that this pattern mechanism has nothing to do with implicit patterns
+            in make. It's a way to produce target which name is different for name of 
+            source.
+        """
+        if not name:
+            name = self.determine_output_name(sources)
+        
+        # Assign an action for each target
+        action = self.action_class()
+        a = action(project.manager(), sources, self.id_, prop_set)
+                
+        # Create generated target for each target type.
+        targets = []
+        pre = self.name_prefix_
+        post = self.name_postfix_
+        for t in self.target_types_:
+            basename = os.path.basename(name)
+            idx = basename.find(".")
+            if idx != -1:
+                basename = basename[:idx]
+            generated_name = pre[0] + basename + post[0]
+            generated_name = os.path.join(os.path.dirname(name), generated_name)
+            pre = pre[1:]
+            post = post[1:]
+            
+            targets.append(virtual_target.FileTarget(generated_name, t, project, a))
+        
+        return [ project.manager().virtual_targets().register(t) for t in targets ]
+
+    def convert_to_consumable_types (self, project, name, prop_set, sources, only_one=False):
+        """ Attempts to convert 'source' to the types that this generator can
+            handle. The intention is to produce the set of targets can should be
+            used when generator is run.
+            only_one:   convert 'source' to only one of source types
+                        if there's more that one possibility, report an
+                        error.
+                        
+            Returns a pair:
+                consumed: all targets that can be consumed. 
+                bypassed: all targets that cannot be consumed.
+        """
+        consumed = []
+        bypassed = []
+        missing_types = [] 
+
+        if len (sources) > 1:
+            # Don't know how to handle several sources yet. Just try 
+            # to pass the request to other generator
+            missing_types = self.source_types_
+
+        else:
+            (c, m) = self.consume_directly (sources [0])
+            consumed += c
+            missing_types += m
+        
+        # No need to search for transformation if
+        # some source type has consumed source and
+        # no more source types are needed.
+        if only_one and consumed:
+            missing_types = []
+            
+        #TODO: we should check that only one source type
+        #if create of 'only_one' is true.
+        # TODO: consider if consuned/bypassed separation should
+        # be done by 'construct_types'.
+                    
+        if missing_types:
+            transformed = construct_types (project, name, missing_types, prop_set, sources)
+                                
+            # Add targets of right type to 'consumed'. Add others to
+            # 'bypassed'. The 'generators.construct' rule has done
+            # its best to convert everything to the required type.
+            # There's no need to rerun it on targets of different types.
+                
+            # NOTE: ignoring usage requirements
+            for t in transformed[1]:
+                if t.type() in missing_types:
+                    consumed.append(t)
+
+                else:
+                    bypassed.append(t)
+        
+        consumed = unique(consumed)
+        bypassed = unique(bypassed)
+        
+        # remove elements of 'bypassed' that are in 'consumed'
+        
+        # Suppose the target type of current generator, X is produced from 
+        # X_1 and X_2, which are produced from Y by one generator.
+        # When creating X_1 from Y, X_2 will be added to 'bypassed'
+        # Likewise, when creating X_2 from Y, X_1 will be added to 'bypassed'
+        # But they are also in 'consumed'. We have to remove them from
+        # bypassed, so that generators up the call stack don't try to convert
+        # them. 
+
+        # In this particular case, X_1 instance in 'consumed' and X_1 instance
+        # in 'bypassed' will be the same: because they have the same source and
+        # action name, and 'virtual-target.register' won't allow two different
+        # instances. Therefore, it's OK to use 'set.difference'.
+        
+        bypassed = set.difference(bypassed, consumed)
+
+        return (consumed, bypassed)
+    
+
+    def convert_multiple_sources_to_consumable_types (self, project, prop_set, sources):
+        """ Converts several files to consumable types.
+        """        
+        consumed = []
+        bypassed = []
+
+        # We process each source one-by-one, trying to convert it to
+        # a usable type.
+        for s in sources:
+            # TODO: need to check for failure on each source.
+            (c, b) = self.convert_to_consumable_types (project, None, prop_set, [s], True)
+            if not c:
+                project.manager ().logger ().log (__name__, " failed to convert ", s)
+
+            consumed.extend (c)
+            bypassed.extend (b)
+
+        return (consumed, bypassed)
+
+    def consume_directly (self, source):
+        real_source_type = source.type ()
+
+        # If there are no source types, we can consume anything
+        source_types = self.source_types()
+        if not source_types:
+            source_types = [real_source_type]            
+
+        consumed = []
+        missing_types = []
+        for st in source_types:
+            # The 'source' if of right type already)
+            if real_source_type == st or type.is_derived (real_source_type, st):
+                consumed.append (source)
+
+            else:
+               missing_types.append (st)
+
+        return (consumed, missing_types)
+    
+    def action_class (self):
+        """ Returns the class to be used to actions. Default implementation 
+            returns "action".
+        """
+        return virtual_target.Action
+
+
+def find (id):
+    """ Finds the generator with id. Returns None if not found.
+    """
+    return __generators.get (id, None)
+
+def register (g):
+    """ Registers new generator instance 'g'.
+    """
+    id = g.id()
+
+    __generators [id] = g
+
+    # A generator can produce several targets of the
+    # same type. We want unique occurence of that generator
+    # in .generators.$(t) in that case, otherwise, it will
+    # be tried twice and we'll get false ambiguity.
+    for t in sequence.unique(g.target_types()):
+        __type_to_generators.setdefault(t, []).append(g)
+
+    # Update the set of generators for toolset
+
+    # TODO: should we check that generator with this id
+    # is not already registered. For example, the fop.jam
+    # module intentionally declared two generators with the
+    # same id, so such check will break it.
+
+    # Some generators have multiple periods in their name, so the
+    # normal $(id:S=) won't generate the right toolset name.
+    # e.g. if id = gcc.compile.c++, then
+    # .generators-for-toolset.$(id:S=) will append to
+    # .generators-for-toolset.gcc.compile, which is a separate
+    # value from .generators-for-toolset.gcc. Correcting this
+    # makes generator inheritance work properly.
+    # See also inherit-generators in module toolset
+    base = id.split ('.', 100) [0]
+
+    __generators_for_toolset.setdefault(base, []).append(g)
+
+    # After adding a new generator that can construct new target types, we need
+    # to clear the related cached viable source target type information for
+    # constructing a specific target type or using a specific generator. Cached
+    # viable source target type lists affected by this are those containing any
+    # of the target types constructed by the new generator or any of their base
+    # target types.
+    #
+    # A more advanced alternative to clearing that cached viable source target
+    # type information would be to expand it with additional source types or
+    # even better - mark it as needing to be expanded on next use.
+    #
+    # For now we just clear all the cached viable source target type information
+    # that does not simply state 'all types' and may implement a more detailed
+    # algorithm later on if it becomes needed.
+
+    invalidate_extendable_viable_source_target_type_cache()
+
+
+def register_standard (id, source_types, target_types, requirements = []):
+    """ Creates new instance of the 'generator' class and registers it.
+        Returns the creates instance.
+        Rationale: the instance is returned so that it's possible to first register
+        a generator and then call 'run' method on that generator, bypassing all
+        generator selection.
+    """
+    g = Generator (id, False, source_types, target_types, requirements)
+    register (g)
+    return g
+
+def register_composing (id, source_types, target_types, requirements = []):
+    g = Generator (id, True, source_types, target_types, requirements)
+    register (g)
+    return g
+
+def generators_for_toolset (toolset):
+    """ Returns all generators which belong to 'toolset'.
+    """
+    return __generators_for_toolset.get(toolset, [])
+
+def override (overrider_id, overridee_id):
+    """Make generator 'overrider-id' be preferred to
+    'overridee-id'. If, when searching for generators
+    that could produce a target of certain type,
+    both those generators are amoung viable generators,
+    the overridden generator is immediately discarded.
+    
+    The overridden generators are discarded immediately
+    after computing the list of viable generators, before
+    running any of them."""
+    
+    __overrides.get(overrider_id, []).append(overridee_id)
+
+def __viable_source_types_real (target_type):
+    """ Returns a list of source type which can possibly be converted
+        to 'target_type' by some chain of generator invocation.
+        
+        More formally, takes all generators for 'target_type' and
+        returns union of source types for those generators and result
+        of calling itself recusrively on source types.
+    """
+    generators = []
+
+    # 't0' is the initial list of target types we need to process to get a list
+    # of their viable source target types. New target types will not be added to
+    # this list.         
+    t0 = type.all_bases (target_type)
+
+
+    # 't' is the list of target types which have not yet been processed to get a
+    # list of their viable source target types. This list will get expanded as
+    # we locate more target types to process.
+    t = t0
+    
+    result = []
+    while t:
+        # Find all generators for current type. 
+        # Unlike 'find_viable_generators' we don't care about prop_set.
+        generators = __type_to_generators.get (t [0], [])
+        t = t[1:]
+        
+        for g in generators:
+            if not g.source_types():
+                # Empty source types -- everything can be accepted
+                result = "*"
+                # This will terminate outer loop.
+                t = None
+                break
+            
+            for source_type in g.source_types ():
+                if not source_type in result:
+                    # If generator accepts 'source_type' it
+                    # will happily accept any type derived from it
+                    all = type.all_derived (source_type)
+                    for n in all:
+                        if not n in result:
+
+                            # Here there is no point in adding target types to
+                            # the list of types to process in case they are or
+                            # have already been on that list. We optimize this
+                            # check by realizing that we only need to avoid the
+                            # original target type's base types. Other target
+                            # types that are or have been on the list of target
+                            # types to process have been added to the 'result'
+                            # list as well and have thus already been eliminated
+                            # by the previous if.
+                            if not n in t0:
+                                t.append (n)
+                            result.append (n)
+           
+    return result
+
+
+def viable_source_types (target_type):
+    """ Helper rule, caches the result of '__viable_source_types_real'.
+    """
+    if not __viable_source_types_cache.has_key(target_type):
+        __vst_cached_types.append(target_type)
+        __viable_source_types_cache [target_type] = __viable_source_types_real (target_type)
+    return __viable_source_types_cache [target_type]
+
+def viable_source_types_for_generator_real (generator):
+    """ Returns the list of source types, which, when passed to 'run'
+        method of 'generator', has some change of being eventually used
+        (probably after conversion by other generators)
+    """
+    source_types = generator.source_types ()
+
+    if not source_types:
+        # If generator does not specify any source types,
+        # it might be special generator like builtin.lib-generator
+        # which just relays to other generators. Return '*' to
+        # indicate that any source type is possibly OK, since we don't
+        # know for sure.
+        return ['*']
+
+    else:
+        result = []
+        for s in source_types:
+            viable_sources = viable_source_types(s)
+            if viable_sources == "*":
+                result = ["*"]
+                break
+            else:
+                result.extend(type.all_derived(s) + viable_sources)
+        return unique(result)
+
+def viable_source_types_for_generator (generator):
+    """ Caches the result of 'viable_source_types_for_generator'.
+    """
+    if not __viable_source_types_cache.has_key(generator):
+        __vstg_cached_generators.append(generator)
+        __viable_source_types_cache[generator] = viable_source_types_for_generator_real (generator)
+    
+    return __viable_source_types_cache[generator]
+
+def try_one_generator_really (project, name, generator, target_type, properties, sources):
+    """ Returns usage requirements + list of created targets.
+    """
+    targets = generator.run (project, name, properties, sources)
+
+    usage_requirements = []
+    success = False
+
+    dout("returned " + str(targets))
+
+    if targets:
+        success = True;
+        
+        if isinstance (targets[0], property_set.PropertySet):
+            usage_requirements = targets [0]
+            targets = targets [1]
+
+        else:
+            usage_requirements = property_set.empty ()
+
+    dout(  "  generator" + generator.id() + " spawned ")
+    #    generators.dout [ indent ] " " $(targets) ; 
+#    if $(usage-requirements)
+#    {
+#        generators.dout [ indent ] "  with usage requirements:" $(x) ;
+#    }
+
+    if success:
+        return (usage_requirements, targets)
+    else:
+        return None
+
+def try_one_generator (project, name, generator, target_type, properties, sources):
+    """ Checks if generator invocation can be pruned, because it's guaranteed
+        to fail. If so, quickly returns empty list. Otherwise, calls
+        try_one_generator_really.
+    """
+    source_types = []
+
+    for s in sources:
+        source_types.append (s.type ())
+
+    viable_source_types = viable_source_types_for_generator (generator)
+    
+    if source_types and viable_source_types != ['*'] and\
+           not set.intersection (source_types, viable_source_types):
+        if project.manager ().logger ().on ():
+            id = generator.id ()            
+            project.manager ().logger ().log (__name__, "generator '%s' pruned" % id)
+            project.manager ().logger ().log (__name__, "source_types" '%s' % source_types)
+            project.manager ().logger ().log (__name__, "viable_source_types '%s'" % viable_source_types)
+        
+        return []
+
+    else:
+        return try_one_generator_really (project, name, generator, target_type, properties, sources)
+
+
+def construct_types (project, name, target_types, prop_set, sources):
+    
+    result = []
+    usage_requirements = property_set.empty()
+    
+    for t in target_types:
+        r = construct (project, name, t, prop_set, sources)
+
+        if r:
+            (ur, targets) = r
+            usage_requirements = usage_requirements.add(ur)
+            result.extend(targets)
+
+    # TODO: have to introduce parameter controlling if
+    # several types can be matched and add appropriate
+    # checks 
+
+    # TODO: need to review the documentation for
+    # 'construct' to see if it should return $(source) even
+    # if nothing can be done with it. Currents docs seem to
+    # imply that, contrary to the behaviour.
+    if result:
+        return (usage_requirements, result)
+
+    else:
+        return (usage_requirements, sources)
+
+def __ensure_type (targets):
+    """ Ensures all 'targets' have types. If this is not so, exists with 
+        error.
+    """
+    for t in targets:
+        if not t.type ():
+            get_manager().errors()("target '%s' has no type" % str (t))
+
+def find_viable_generators_aux (target_type, prop_set):
+    """ Returns generators which can be used to construct target of specified type
+        with specified properties. Uses the following algorithm:
+        - iterates over requested target_type and all it's bases (in the order returned bt
+          type.all-bases.
+        - for each type find all generators that generate that type and which requirements
+          are satisfied by properties.
+        - if the set of generators is not empty, returns that set.
+        
+        Note: this algorithm explicitly ignores generators for base classes if there's
+        at least one generator for requested target_type.
+    """
+    # Select generators that can create the required target type.
+    viable_generators = []
+    initial_generators = []
+
+    import type
+
+    # Try all-type generators first. Assume they have
+    # quite specific requirements.
+    all_bases = type.all_bases(target_type)
+        
+    for t in all_bases:
+        
+        initial_generators = __type_to_generators.get(t, [])
+        
+        if initial_generators:
+            dout("there are generators for this type")
+            if t != target_type:
+                # We're here, when no generators for target-type are found,
+                # but there are some generators for a base type.
+                # We'll try to use them, but they will produce targets of
+                # base type, not of 'target-type'. So, we clone the generators
+                # and modify the list of target types.
+                generators2 = []
+                for g in initial_generators[:]:
+                    # generators.register adds generator to the list of generators
+                    # for toolsets, which is a bit strange, but should work.
+                    # That list is only used when inheriting toolset, which
+                    # should have being done before generators are run.
+                    ng = g.clone_and_change_target_type(t, target_type)
+                    generators2.append(ng)
+                    register(ng)
+                    
+                initial_generators = generators2
+            break
+    
+    for g in initial_generators:
+        dout("trying generator " + g.id()
+             + "(" + str(g.source_types()) + "->" + str(g.target_types()) + ")")
+        
+        m = g.match_rank(prop_set)
+        if m:
+            dout("  is viable")
+            viable_generators.append(g)            
+                            
+    return viable_generators
+
+def find_viable_generators (target_type, prop_set):
+    key = target_type + '.' + str (prop_set)
+
+    l = __viable_generators_cache.get (key, None)
+    if not l:
+        l = []
+
+    if not l:
+        l = find_viable_generators_aux (target_type, prop_set)
+
+        __viable_generators_cache [key] = l
+
+    viable_generators = []
+    for g in l:
+        # Avoid trying the same generator twice on different levels.
+        # TODO: is this really used?
+        if not g in __active_generators:
+            viable_generators.append (g)
+        else:
+            dout("      generator %s is active, discarding" % g.id())
+
+    # Generators which override 'all'.
+    all_overrides = []
+    
+    # Generators which are overriden
+    overriden_ids = [] 
+       
+    for g in viable_generators:
+        id = g.id ()
+        
+        this_overrides = __overrides.get (id, [])
+        
+        if this_overrides:
+            overriden_ids.extend (this_overrides)
+            if 'all' in this_overrides:
+                all_overrides.append (g)
+
+    if all_overrides:
+        viable_generators = all_overrides
+
+    result = []
+    for g in viable_generators:
+        if not g.id () in overriden_ids:
+            result.append (g)
+
+        
+    return result
+    
+def __construct_really (project, name, target_type, prop_set, sources):
+    """ Attempts to construct target by finding viable generators, running them
+        and selecting the dependency graph.
+    """
+    viable_generators = find_viable_generators (target_type, prop_set)
+                    
+    result = []
+
+    project.manager ().logger ().log (__name__, "*** %d viable generators" % len (viable_generators))
+
+    generators_that_succeeded = []
+    
+    for g in viable_generators:
+        __active_generators.append(g)        
+        r = try_one_generator (project, name, g, target_type, prop_set, sources)
+        del __active_generators[-1]
+        
+        if r:
+            generators_that_succeeded.append(g)
+            if result:
+                output = cStringIO.StringIO()
+                print >>output, "ambiguity found when searching for best transformation"
+                print >>output, "Trying to produce type '%s' from: " % (target_type)
+                for s in sources:
+                    print >>output, " - " + s.str()
+                print >>output, "Generators that succeeded:"
+                for g in generators_that_succeeded:
+                    print >>output, " - " + g.id()
+                print >>output, "First generator produced: "
+                for t in result[1:]:
+                    print >>output, " - " + str(t)
+                print >>output, "Second generator produced:"
+                for t in r[1:]:
+                    print >>output, " - " + str(t)
+                get_manager().errors()(output.getvalue())
+            else:
+                result = r;
+            
+    return result;
+
+
+def construct (project, name, target_type, prop_set, sources, top_level=False):
+    """ Attempts to create target of 'target-type' with 'properties'
+        from 'sources'. The 'sources' are treated as a collection of
+        *possible* ingridients -- i.e. it is not required to consume
+        them all. If 'multiple' is true, the rule is allowed to return
+        several targets of 'target-type'.          
+        
+        Returns a list of target. When this invocation is first instance of
+        'construct' in stack, returns only targets of requested 'target-type',
+        otherwise, returns also unused sources and additionally generated
+        targets.
+        
+        If 'top-level' is set, does not suppress generators that are already
+        used in the stack. This may be useful in cases where a generator
+        has to build a metatarget -- for example a target corresponding to
+        built tool.        
+    """
+
+    global __active_generators
+    if top_level:
+        saved_active = __active_generators
+        __active_generators = []
+
+    global __construct_stack
+    if not __construct_stack:
+        __ensure_type (sources)
+        
+    __construct_stack.append (1)
+
+    if project.manager().logger().on():
+        increase_indent ()
+        
+        dout( "*** construct " + target_type)
+        
+        for s in sources:
+            dout("    from " + str(s))
+
+        project.manager().logger().log (__name__, "    properties: ", prop_set.raw ())
+             
+    result = __construct_really(project, name, target_type, prop_set, sources)
+
+    project.manager().logger().decrease_indent()
+        
+    __construct_stack = __construct_stack [1:]
+
+    if top_level:
+        __active_generators = saved_active
+
+    return result
+    
diff --git a/jam-files/boost-build/build/modifiers.jam b/jam-files/boost-build/build/modifiers.jam
new file mode 100644
index 00000000..6b009343
--- /dev/null
+++ b/jam-files/boost-build/build/modifiers.jam
@@ -0,0 +1,232 @@
+# Copyright 2003 Rene Rivera
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+# Modifiers are generalized generators that mutate targets in specific ways.
+# This structure allows for grouping a variety of functionality in an
+# orthogonal way to the functionality in toolsets, and without specifying
+# more target variations. In turn the modifiers can be used as building
+# blocks to implement simple requests, like the <version> feature.
+
+import modules ;
+import feature ;
+import errors ;
+import type ;
+import "class" : new ;
+import generators ;
+import property ;
+import virtual-target ;
+import numbers ;
+import sequence ;
+import symlink ;
+import property-set ;
+
+# Base generator for creating targets that are modifications of existing
+# targets.
+#
+class modifier : generator
+{
+    rule __init__ (
+        id
+        composing ?
+        : source-types *
+        : target-types-and-names +
+        : requirements *
+        )
+    {
+        generator.__init__ $(id) $(composing)
+            : $(source-types)
+            : $(target-types-and-names)
+            : $(requirements) ;
+
+        self.targets-in-progress = ;
+    }
+
+    # Wraps the generation of the target to call before and after rules to
+    # affect the real target.
+    #
+    rule run ( project name ? : property-set : sources + )
+    {
+        local result ;
+        local current-target = $(project)^$(name) ;
+        if ! $(current-target) in $(self.targets-in-progress)
+        {
+            # Before modifications...
+            local project_ =
+                [ modify-project-before
+                    $(project) $(name) : $(property-set) : $(sources) ] ;
+            local name_ =
+                [ modify-name-before
+                    $(project) $(name) : $(property-set) : $(sources) ] ;
+            local property-set_ =
+                [ modify-properties-before
+                    $(project) $(name) : $(property-set) : $(sources) ] ;
+            local sources_ =
+                [ modify-sources-before
+                    $(project) $(name) : $(property-set) : $(sources) ] ;
+            project = $(project_) ;
+            name = $(name_) ;
+            property-set = $(property-set_) ;
+            sources = $(sources_) ;
+
+            # Generate the real target...
+            local target-type-p =
+                [ property.select <main-target-type> : [ $(property-set).raw ] ] ;
+            self.targets-in-progress += $(current-target) ;
+            result =
+                [ generators.construct $(project) $(name)
+                    : $(target-type-p:G=)
+                    : $(property-set)
+                    : $(sources) ] ;
+            self.targets-in-progress = $(self.targets-in-progress[1--2]) ;
+
+            # After modifications...
+            result =
+                [ modify-target-after $(result)
+                    : $(project) $(name)
+                    : $(property-set)
+                    : $(sources) ] ;
+        }
+        return $(result) ;
+    }
+
+    rule modify-project-before ( project name ? : property-set : sources + )
+    {
+        return $(project) ;
+    }
+
+    rule modify-name-before ( project name ? : property-set : sources + )
+    {
+        return $(name) ;
+    }
+
+    rule modify-properties-before ( project name ? : property-set : sources + )
+    {
+        return $(property-set) ;
+    }
+
+    rule modify-sources-before ( project name ? : property-set : sources + )
+    {
+        return $(sources) ;
+    }
+
+    rule modify-target-after ( target : project name ? : property-set : sources + )
+    {
+        return $(target) ;
+    }
+
+    # Utility, clones a file-target with optional changes to the name, type and
+    # project of the target.
+    # NOTE: This functionality should be moved, and generalized, to
+    # virtual-targets.
+    #
+    rule clone-file-target ( target : new-name ? : new-type ? : new-project ? )
+    {
+        # Need a MUTCH better way to clone a target...
+        new-name ?= [ $(target).name ] ;
+        new-type ?= [ $(target).type ] ;
+        new-project ?= [ $(target).project ] ;
+        local result = [ new file-target $(new-name) : $(new-type) : $(new-project) ] ;
+
+        if [ $(target).dependencies ] { $(result).depends [ $(target).dependencies ] ; }
+        $(result).root [ $(target).root ] ;
+        $(result).set-usage-requirements [ $(target).usage-requirements ] ;
+
+        local action = [ $(target).action ] ;
+        local action-class = [ modules.peek $(action) : __class__ ] ;
+
+        local ps = [ $(action).properties ] ;
+        local cloned-action = [ new $(action-class) $(result) :
+          [ $(action).sources ] : [ $(action).action-name ] : $(ps) ] ;
+        $(result).action $(cloned-action) ;
+
+        return $(result) ;
+    }
+}
+
+
+# A modifier that changes the name of a target, after it's generated, given a
+# regular expression to split the name, and a set of token to insert between the
+# split tokens of the name. This also exposes the target for other uses with a
+# symlink to the original name (optionally).
+#
+class name-modifier : modifier
+{
+    rule __init__ ( )
+    {
+        # Apply ourselves to EXE targets, for now.
+        modifier.__init__ name.modifier : : EXE LIB : <name-modify>yes ;
+    }
+
+    # Modifies the name, by cloning the target with the new name.
+    #
+    rule modify-target-after ( target : project name ? : property-set : sources + )
+    {
+        local result = $(target) ;
+
+        local name-mod-p = [ property.select <name-modifier> : [ $(property-set).raw ] ] ;
+        if $(name-mod-p)
+        {
+            local new-name = [ modify-name [ $(target).name ] : $(name-mod-p:G=) ] ;
+            if $(new-name) != [ $(target).name ]
+            {
+                result = [ clone-file-target $(target) : $(new-name) ] ;
+            }
+            local expose-original-as-symlink = [ MATCH "<symlink>(.*)" : $(name-mod-p) ] ;
+            if $(expose-original-as-symlink)
+            {
+                local symlink-t = [ new symlink-targets $(project) : $(name) : [ $(result).name ] ] ;
+                result = [ $(symlink-t).construct $(result)
+                    : [ property-set.create [ $(property-set).raw ] <symlink-location>build-relative ] ] ;
+            }
+        }
+
+        return $(result) ;
+    }
+
+    # Do the transformation of the name.
+    #
+    rule modify-name ( name : modifier-spec + )
+    {
+        local match = [ MATCH "<match>(.*)" : $(modifier-spec) ] ;
+        local name-parts = [ MATCH $(match) : $(name) ] ;
+        local insertions = [ sequence.insertion-sort [ MATCH "(<[0123456789]+>.*)" : $(modifier-spec) ] ] ;
+        local new-name-parts ;
+        local insert-position = 1 ;
+        while $(insertions)
+        {
+            local insertion = [ MATCH "<$(insert-position)>(.*)" : $(insertions[1]) ] ;
+            if $(insertion)
+            {
+                new-name-parts += $(insertion) ;
+                insertions = $(insertions[2-]) ;
+            }
+            new-name-parts += $(name-parts[1]) ;
+            name-parts = $(name-parts[2-]) ;
+            insert-position = [ numbers.increment $(insert-position) ] ;
+        }
+        new-name-parts += $(name-parts) ;
+        return [ sequence.join $(new-name-parts) ] ;
+    }
+
+    rule optional-properties ( )
+    {
+        return <name-modify>yes ;
+    }
+}
+feature.feature name-modifier : : free ;
+feature.feature name-modify : no yes : incidental optional ;
+generators.register [ new name-modifier ] ;
+
+# Translates <version> property to a set of modification properties
+# that are applied by the name-modifier, and symlink-modifier.
+#
+rule version-to-modifier ( property : properties * )
+{
+    return
+        <name-modify>yes
+            <name-modifier><match>"^([^.]*)(.*)" <name-modifier><2>.$(property:G=)
+            <name-modifier><symlink>yes
+        ;
+}
+feature.action <version> : version-to-modifier ;
diff --git a/jam-files/boost-build/build/project.ann.py b/jam-files/boost-build/build/project.ann.py
new file mode 100644
index 00000000..349f5495
--- /dev/null
+++ b/jam-files/boost-build/build/project.ann.py
@@ -0,0 +1,996 @@
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000   1) # Status: being ported by Vladimir Prus
+ddc17f01 (vladimir_prus 2007-10-26 14:57:56 +0000   2) # Base revision: 40480
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000   3) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000   4) # Copyright 2002, 2003 Dave Abrahams 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000   5) # Copyright 2002, 2005, 2006 Rene Rivera 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000   6) # Copyright 2002, 2003, 2004, 2005, 2006 Vladimir Prus 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000   7) # Distributed under the Boost Software License, Version 1.0. 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000   8) # (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000   9) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  10) #  Implements project representation and loading.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  11) #   Each project is represented by 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  12) #   - a module where all the Jamfile content live. 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  13) #   - an instance of 'project-attributes' class.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  14) #     (given module name, can be obtained by 'attributes' rule)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  15) #   - an instance of 'project-target' class (from targets.jam)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  16) #     (given a module name, can be obtained by 'target' rule)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  17) #
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  18) #  Typically, projects are created as result of loading Jamfile, which is
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  19) #  do by rules 'load' and 'initialize', below. First, module for Jamfile
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  20) #  is loaded and new project-attributes instance is created. Some rules
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  21) #  necessary for project are added to the module (see 'project-rules' module)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  22) #  at the bottom of this file.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  23) #  Default project attributes are set (inheriting attributes of parent project, if
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  24) #  it exists). After that, Jamfile is read. It can declare its own attributes,
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  25) #  via 'project' rule, which will be combined with already set attributes.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  26) #
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  27) #
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  28) #  The 'project' rule can also declare project id, which will be associated with 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  29) #  the project module.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  30) #
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  31) #  There can also be 'standalone' projects. They are created by calling 'initialize'
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  32) #  on arbitrary module, and not specifying location. After the call, the module can
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  33) #  call 'project' rule, declare main target and behave as regular projects. However,
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  34) #  since it's not associated with any location, it's better declare only prebuilt 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  35) #  targets.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  36) #
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  37) #  The list of all loaded Jamfile is stored in variable .project-locations. It's possible
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  38) #  to obtain module name for a location using 'module-name' rule. The standalone projects
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  39) #  are not recorded, the only way to use them is by project id.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  40) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  41) import b2.util.path
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000  42) from b2.build import property_set, property
+0317671e (vladimir_prus 2007-10-28 14:02:06 +0000  43) from b2.build.errors import ExceptionWithUserContext
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  44) import b2.build.targets
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  45) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  46) import bjam
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  47) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  48) import re
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  49) import sys
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  50) import os
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  51) import string
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000  52) import imp
+0317671e (vladimir_prus 2007-10-28 14:02:06 +0000  53) import traceback
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  54) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  55) class ProjectRegistry:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  56) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  57)     def __init__(self, manager, global_build_dir):
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  58)         self.manager = manager
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  59)         self.global_build_dir = None
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000  60)         self.project_rules_ = ProjectRules(self)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  61) 
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000  62)         # The target corresponding to the project being loaded now
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  63)         self.current_project = None
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  64)         
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  65)         # The set of names of loaded project modules
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  66)         self.jamfile_modules = {}
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  67) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  68)         # Mapping from location to module name
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  69)         self.location2module = {}
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  70) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  71)         # Mapping from project id to project module
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  72)         self.id2module = {}
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  73) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  74)         # Map from Jamfile directory to parent Jamfile/Jamroot
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  75)         # location.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  76)         self.dir2parent_jamfile = {}
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  77) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  78)         # Map from directory to the name of Jamfile in
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  79)         # that directory (or None).
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  80)         self.dir2jamfile = {}
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  81) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  82)         # Map from project module to attributes object.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  83)         self.module2attributes = {}
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  84) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  85)         # Map from project module to target for the project
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  86)         self.module2target = {}
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  87) 
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000  88)         # Map from names to Python modules, for modules loaded
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000  89)         # via 'using' and 'import' rules in Jamfiles.
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000  90)         self.loaded_tool_modules_ = {}
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000  91) 
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000  92)         # Map from project target to the list of
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000  93)         # (id,location) pairs corresponding to all 'use-project'
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000  94)         # invocations.
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000  95)         # TODO: should not have a global map, keep this
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000  96)         # in ProjectTarget.
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000  97)         self.used_projects = {}
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000  98) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000  99)         self.saved_current_project = []
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 100) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 101)         self.JAMROOT = self.manager.getenv("JAMROOT");
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 102) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 103)         # Note the use of character groups, as opposed to listing
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 104)         # 'Jamroot' and 'jamroot'. With the latter, we'd get duplicate
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 105)         # matches on windows and would have to eliminate duplicates.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 106)         if not self.JAMROOT:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 107)             self.JAMROOT = ["project-root.jam", "[Jj]amroot", "[Jj]amroot.jam"]
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 108) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 109)         # Default patterns to search for the Jamfiles to use for build
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 110)         # declarations.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 111)         self.JAMFILE = self.manager.getenv("JAMFILE")
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 112) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 113)         if not self.JAMFILE:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 114)             self.JAMFILE = ["[Bb]uild.jam", "[Jj]amfile.v2", "[Jj]amfile",
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 115)                             "[Jj]amfile.jam"]
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 116) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 117) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 118)     def load (self, jamfile_location):
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 119)         """Loads jamfile at the given location. After loading, project global
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 120)         file and jamfile needed by the loaded one will be loaded recursively.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 121)         If the jamfile at that location is loaded already, does nothing.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 122)         Returns the project module for the Jamfile."""
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 123) 
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 124)         absolute = os.path.join(os.getcwd(), jamfile_location)
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 125)         absolute = os.path.normpath(absolute)
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 126)         jamfile_location = b2.util.path.relpath(os.getcwd(), absolute)
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 127) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 128)         if "--debug-loading" in self.manager.argv():
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 129)             print "Loading Jamfile at '%s'" % jamfile_location
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 130) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 131)             
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 132)         mname = self.module_name(jamfile_location)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 133)         # If Jamfile is already loaded, don't try again.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 134)         if not mname in self.jamfile_modules:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 135)         
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 136)             self.load_jamfile(jamfile_location)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 137)                 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 138)             # We want to make sure that child project are loaded only
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 139)             # after parent projects. In particular, because parent projects
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 140)             # define attributes whch are inherited by children, and we don't
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 141)             # want children to be loaded before parents has defined everything.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 142)             #
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 143)             # While "build-project" and "use-project" can potentially refer
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 144)             # to child projects from parent projects, we don't immediately
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 145)             # load child projects when seing those attributes. Instead,
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 146)             # we record the minimal information that will be used only later.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 147)             
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 148)             self.load_used_projects(mname)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 149)              
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 150)         return mname
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 151) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 152)     def load_used_projects(self, module_name):
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 153)         # local used = [ modules.peek $(module-name) : .used-projects ] ;
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 154)         used = self.used_projects[module_name]
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 155)     
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 156)         location = self.attribute(module_name, "location")
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 157)         for u in used:
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 158)             id = u[0]
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 159)             where = u[1]
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 160) 
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 161)             self.use(id, os.path.join(location, where))
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 162) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 163)     def load_parent(self, location):
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 164)         """Loads parent of Jamfile at 'location'.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 165)         Issues an error if nothing is found."""
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 166) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 167)         found = b2.util.path.glob_in_parents(
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 168)             location, self.JAMROOT + self.JAMFILE) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 169) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 170)         if not found:
+1674e2d9 (jhunold       2008-08-08 19:52:05 +0000 171)             print "error: Could not find parent for project at '%s'" % location
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 172)             print "error: Did not find Jamfile or project-root.jam in any parent directory."
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 173)             sys.exit(1)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 174)     
+49c03622 (jhunold       2008-07-23 09:57:41 +0000 175)         return self.load(os.path.dirname(found[0]))
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 176) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 177)     def act_as_jamfile(self, module, location):
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 178)         """Makes the specified 'module' act as if it were a regularly loaded Jamfile 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 179)         at 'location'. If Jamfile is already located for that location, it's an 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 180)         error."""
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 181) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 182)         if self.module_name(location) in self.jamfile_modules:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 183)             self.manager.errors()(
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 184)                 "Jamfile was already loaded for '%s'" % location)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 185)     
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 186)         # Set up non-default mapping from location to module.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 187)         self.location2module[location] = module
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 188)     
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 189)         # Add the location to the list of project locations
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 190)         # so that we don't try to load Jamfile in future
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 191)         self.jamfile_modules.append(location)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 192)     
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 193)         self.initialize(module, location)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 194) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 195)     def find(self, name, current_location):
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 196)         """Given 'name' which can be project-id or plain directory name,
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 197)         return project module corresponding to that id or directory.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 198)         Returns nothing of project is not found."""
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 199) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 200)         project_module = None
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 201) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 202)         # Try interpreting name as project id.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 203)         if name[0] == '/':
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 204)             project_module = self.id2module.get(name)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 205) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 206)         if not project_module:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 207)             location = os.path.join(current_location, name)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 208)             # If no project is registered for the given location, try to
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 209)             # load it. First see if we have Jamfile. If not we might have project
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 210)             # root, willing to act as Jamfile. In that case, project-root
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 211)             # must be placed in the directory referred by id.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 212)         
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 213)             project_module = self.module_name(location)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 214)             if not project_module in self.jamfile_modules and \
+49c03622 (jhunold       2008-07-23 09:57:41 +0000 215)                b2.util.path.glob([location], self.JAMROOT + self.JAMFILE):
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 216)                 project_module = self.load(location)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 217) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 218)         return project_module
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 219) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 220)     def module_name(self, jamfile_location):
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 221)         """Returns the name of module corresponding to 'jamfile-location'.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 222)         If no module corresponds to location yet, associates default
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 223)         module name with that location."""
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 224)         module = self.location2module.get(jamfile_location)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 225)         if not module:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 226)             # Root the path, so that locations are always umbiguious.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 227)             # Without this, we can't decide if '../../exe/program1' and '.'
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 228)             # are the same paths, or not.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 229)             jamfile_location = os.path.realpath(
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 230)                 os.path.join(os.getcwd(), jamfile_location))
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 231)             module = "Jamfile<%s>" % jamfile_location
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 232)             self.location2module[jamfile_location] = module
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 233)         return module
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 234) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 235)     def find_jamfile (self, dir, parent_root=0, no_errors=0):
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 236)         """Find the Jamfile at the given location. This returns the
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 237)         exact names of all the Jamfiles in the given directory. The optional
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 238)         parent-root argument causes this to search not the given directory
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 239)         but the ones above it up to the directory given in it."""
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 240)         
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 241)         # Glob for all the possible Jamfiles according to the match pattern.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 242)         #
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 243)         jamfile_glob = None
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 244)         if parent_root:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 245)             parent = self.dir2parent_jamfile.get(dir)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 246)             if not parent:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 247)                 parent = b2.util.path.glob_in_parents(dir,
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 248)                                                                self.JAMFILE)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 249)                 self.dir2parent_jamfile[dir] = parent
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 250)             jamfile_glob = parent
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 251)         else:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 252)             jamfile = self.dir2jamfile.get(dir)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 253)             if not jamfile:
+49c03622 (jhunold       2008-07-23 09:57:41 +0000 254)                 jamfile = b2.util.path.glob([dir], self.JAMFILE)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 255)                 self.dir2jamfile[dir] = jamfile
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 256)             jamfile_glob = jamfile
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 257) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 258)         if len(jamfile_glob):
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 259)             # Multiple Jamfiles found in the same place. Warn about this.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 260)             # And ensure we use only one of them.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 261)             # As a temporary convenience measure, if there's Jamfile.v2 amount
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 262)             # found files, suppress the warning and use it.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 263)             #
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 264)             pattern = "(.*[Jj]amfile\\.v2)|(.*[Bb]uild\\.jam)"
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 265)             v2_jamfiles = [x for x in jamfile_glob if re.match(pattern, x)]
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 266)             if len(v2_jamfiles) == 1:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 267)                 jamfile_glob = v2_jamfiles
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 268)             else:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 269)                 print """warning: Found multiple Jamfiles at '%s'!
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 270) Loading the first one: '%s'.""" % (dir, jamfile_glob[0])
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 271)     
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 272)         # Could not find it, error.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 273)         if not no_errors and not jamfile_glob:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 274)             self.manager.errors()(
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 275)                 """Unable to load Jamfile.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 276) Could not find a Jamfile in directory '%s'
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 277) Attempted to find it with pattern '%s'.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 278) Please consult the documentation at 'http://boost.org/b2.'."""
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 279)                 % (dir, string.join(self.JAMFILE)))
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 280) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 281)         return jamfile_glob[0]
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 282)     
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 283)     def load_jamfile(self, dir):
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 284)         """Load a Jamfile at the given directory. Returns nothing.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 285)         Will attempt to load the file as indicated by the JAMFILE patterns.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 286)         Effect of calling this rule twice with the same 'dir' is underfined."""
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 287)       
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 288)         # See if the Jamfile is where it should be.
+49c03622 (jhunold       2008-07-23 09:57:41 +0000 289)         jamfile_to_load = b2.util.path.glob([dir], self.JAMROOT)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 290)         if not jamfile_to_load:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 291)             jamfile_to_load = self.find_jamfile(dir)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 292)         else:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 293)             jamfile_to_load = jamfile_to_load[0]
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 294)             
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 295)         # The module of the jamfile.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 296)         dir = os.path.realpath(os.path.dirname(jamfile_to_load))
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 297)         
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 298)         jamfile_module = self.module_name (dir)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 299) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 300)         # Initialize the jamfile module before loading.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 301)         #    
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 302)         self.initialize(jamfile_module, dir, os.path.basename(jamfile_to_load))
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 303) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 304)         saved_project = self.current_project
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 305) 
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 306)         self.used_projects[jamfile_module] = []
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 307)         
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 308)         # Now load the Jamfile in it's own context.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 309)         # Initialization might have load parent Jamfiles, which might have
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 310)         # loaded the current Jamfile with use-project. Do a final check to make
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 311)         # sure it's not loaded already.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 312)         if not jamfile_module in self.jamfile_modules:
+49c03622 (jhunold       2008-07-23 09:57:41 +0000 313)             self.jamfile_modules[jamfile_module] = True
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 314) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 315)             # FIXME:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 316)             # mark-as-user $(jamfile-module) ;
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 317) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 318)             bjam.call("load", jamfile_module, jamfile_to_load)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 319)             basename = os.path.basename(jamfile_to_load)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 320)                         
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 321)         # Now do some checks
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 322)         if self.current_project != saved_project:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 323)             self.manager.errors()(
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 324) """The value of the .current-project variable
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 325) has magically changed after loading a Jamfile.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 326) This means some of the targets might be defined a the wrong project.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 327) after loading %s
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 328) expected value %s
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 329) actual value %s""" % (jamfile_module, saved_project, self.current_project))
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 330)           
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 331)         if self.global_build_dir:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 332)             id = self.attribute(jamfile_module, "id")
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 333)             project_root = self.attribute(jamfile_module, "project-root")
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 334)             location = self.attribute(jamfile_module, "location")
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 335) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 336)             if location and project_root == dir:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 337)                 # This is Jamroot
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 338)                 if not id:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 339)                     # FIXME: go via errors module, so that contexts are
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 340)                     # shown?
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 341)                     print "warning: the --build-dir option was specified"
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 342)                     print "warning: but Jamroot at '%s'" % dir
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 343)                     print "warning: specified no project id"
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 344)                     print "warning: the --build-dir option will be ignored"
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 345) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 346) 
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 347)     def load_standalone(self, jamfile_module, file):
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 348)         """Loads 'file' as standalone project that has no location
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 349)         associated with it.  This is mostly useful for user-config.jam,
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 350)         which should be able to define targets, but although it has
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 351)         some location in filesystem, we don't want any build to
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 352)         happen in user's HOME, for example.
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 353) 
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 354)         The caller is required to never call this method twice on
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 355)         the same file.
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 356)         """
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 357) 
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 358)         self.initialize(jamfile_module)
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 359)         self.used_projects[jamfile_module] = []
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 360)         bjam.call("load", jamfile_module, file)
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 361)         self.load_used_projects(jamfile_module)
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 362)         
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 363)     def is_jamroot(self, basename):
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 364)         match = [ pat for pat in self.JAMROOT if re.match(pat, basename)]
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 365)         if match:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 366)             return 1
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 367)         else:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 368)             return 0
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 369) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 370)     def initialize(self, module_name, location=None, basename=None):
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 371)         """Initialize the module for a project.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 372)         
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 373)         module-name is the name of the project module.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 374)         location is the location (directory) of the project to initialize.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 375)                  If not specified, stanalone project will be initialized
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 376)         """
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 377) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 378)         if "--debug-loading" in self.manager.argv():
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 379)             print "Initializing project '%s'" % module_name
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 380) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 381)         # TODO: need to consider if standalone projects can do anything but defining
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 382)         # prebuilt targets. If so, we need to give more sensible "location", so that
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 383)         # source paths are correct.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 384)         if not location:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 385)             location = ""
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 386)         else:
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 387)             location = b2.util.path.relpath(os.getcwd(), location)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 388) 
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 389)         attributes = ProjectAttributes(self.manager, location, module_name)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 390)         self.module2attributes[module_name] = attributes
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 391) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 392)         if location:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 393)             attributes.set("source-location", location, exact=1)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 394)         else:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 395)             attributes.set("source-location", "", exact=1)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 396) 
+49c03622 (jhunold       2008-07-23 09:57:41 +0000 397)         attributes.set("requirements", property_set.empty(), exact=True)
+49c03622 (jhunold       2008-07-23 09:57:41 +0000 398)         attributes.set("usage-requirements", property_set.empty(), exact=True)
+49c03622 (jhunold       2008-07-23 09:57:41 +0000 399)         attributes.set("default-build", [], exact=True)
+49c03622 (jhunold       2008-07-23 09:57:41 +0000 400)         attributes.set("projects-to-build", [], exact=True)
+49c03622 (jhunold       2008-07-23 09:57:41 +0000 401)         attributes.set("project-root", None, exact=True)
+49c03622 (jhunold       2008-07-23 09:57:41 +0000 402)         attributes.set("build-dir", None, exact=True)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 403)         
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 404)         self.project_rules_.init_project(module_name)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 405) 
+49c03622 (jhunold       2008-07-23 09:57:41 +0000 406)         jamroot = False
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 407) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 408)         parent_module = None;
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 409)         if module_name == "site-config":
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 410)             # No parent
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 411)             pass
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 412)         elif module_name == "user-config":
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 413)             parent_module = "site-config"
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 414)         elif location and not self.is_jamroot(basename):
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 415)             # We search for parent/project-root only if jamfile was specified 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 416)             # --- i.e
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 417)             # if the project is not standalone.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 418)             parent_module = self.load_parent(location)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 419)         else:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 420)             # It's either jamroot, or standalone project.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 421)             # If it's jamroot, inherit from user-config.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 422)             if location:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 423)                 parent_module = "user-config" ;                
+49c03622 (jhunold       2008-07-23 09:57:41 +0000 424)                 jamroot = True ;
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 425)                 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 426)         if parent_module:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 427)             self.inherit_attributes(module_name, parent_module)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 428)             attributes.set("parent-module", parent_module, exact=1)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 429) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 430)         if jamroot:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 431)             attributes.set("project-root", location, exact=1)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 432)                                 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 433)         parent = None
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 434)         if parent_module:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 435)             parent = self.target(parent_module)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 436) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 437)         if not self.module2target.has_key(module_name):
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 438)             target = b2.build.targets.ProjectTarget(self.manager,
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 439)                 module_name, module_name, parent,
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 440)                 self.attribute(module_name,"requirements"),
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 441)                 # FIXME: why we need to pass this? It's not
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 442)                 # passed in jam code.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 443)                 self.attribute(module_name, "default-build"))
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 444)             self.module2target[module_name] = target
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 445) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 446)         self.current_project = self.target(module_name)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 447) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 448)     def inherit_attributes(self, project_module, parent_module):
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 449)         """Make 'project-module' inherit attributes of project
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 450)         root and parent module."""
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 451) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 452)         attributes = self.module2attributes[project_module]
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 453)         pattributes = self.module2attributes[parent_module]
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 454)         
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 455)         # Parent module might be locationless user-config.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 456)         # FIXME:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 457)         #if [ modules.binding $(parent-module) ]
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 458)         #{        
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 459)         #    $(attributes).set parent : [ path.parent 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 460)         #                                 [ path.make [ modules.binding $(parent-module) ] ] ] ;
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 461)         #    }
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 462)         
+49c03622 (jhunold       2008-07-23 09:57:41 +0000 463)         attributes.set("project-root", pattributes.get("project-root"), exact=True)
+49c03622 (jhunold       2008-07-23 09:57:41 +0000 464)         attributes.set("default-build", pattributes.get("default-build"), exact=True)
+49c03622 (jhunold       2008-07-23 09:57:41 +0000 465)         attributes.set("requirements", pattributes.get("requirements"), exact=True)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 466)         attributes.set("usage-requirements",
+cde6f09a (vladimir_prus 2007-10-19 23:12:33 +0000 467)                        pattributes.get("usage-requirements"), exact=1)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 468) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 469)         parent_build_dir = pattributes.get("build-dir")
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 470)         
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 471)         if parent_build_dir:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 472)         # Have to compute relative path from parent dir to our dir
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 473)         # Convert both paths to absolute, since we cannot
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 474)         # find relative path from ".." to "."
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 475) 
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 476)              location = attributes.get("location")
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 477)              parent_location = pattributes.get("location")
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 478) 
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 479)              our_dir = os.path.join(os.getcwd(), location)
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 480)              parent_dir = os.path.join(os.getcwd(), parent_location)
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 481) 
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 482)              build_dir = os.path.join(parent_build_dir,
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 483)                                       b2.util.path.relpath(parent_dir,
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 484)                                                                     our_dir))
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 485) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 486)     def register_id(self, id, module):
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 487)         """Associate the given id with the given project module."""
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 488)         self.id2module[id] = module
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 489) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 490)     def current(self):
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 491)         """Returns the project which is currently being loaded."""
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 492)         return self.current_project
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 493) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 494)     def push_current(self, project):
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 495)         """Temporary changes the current project to 'project'. Should
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 496)         be followed by 'pop-current'."""
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 497)         self.saved_current_project.append(self.current_project)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 498)         self.current_project = project
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 499) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 500)     def pop_current(self):
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 501)         self.current_project = self.saved_current_project[-1]
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 502)         del self.saved_current_project[-1]
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 503) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 504)     def attributes(self, project):
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 505)         """Returns the project-attribute instance for the
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 506)         specified jamfile module."""
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 507)         return self.module2attributes[project]
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 508) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 509)     def attribute(self, project, attribute):
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 510)         """Returns the value of the specified attribute in the
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 511)         specified jamfile module."""
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 512)         return self.module2attributes[project].get(attribute)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 513) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 514)     def target(self, project_module):
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 515)         """Returns the project target corresponding to the 'project-module'."""
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 516)         if not self.module2target[project_module]:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 517)             self.module2target[project_module] = \
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 518)                 ProjectTarget(project_module, project_module,
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 519)                               self.attribute(project_module, "requirements"))
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 520)         
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 521)         return self.module2target[project_module]
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 522) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 523)     def use(self, id, location):
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 524)         # Use/load a project.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 525)         saved_project = self.current_project
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 526)         project_module = self.load(location)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 527)         declared_id = self.attribute(project_module, "id")
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 528) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 529)         if not declared_id or declared_id != id:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 530)             # The project at 'location' either have no id or
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 531)             # that id is not equal to the 'id' parameter.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 532)             if self.id2module[id] and self.id2module[id] != project_module:
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 533)                 self.manager.errors()(
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 534) """Attempt to redeclare already existing project id '%s'""" % id)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 535)             self.id2module[id] = project_module
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 536) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 537)         self.current_module = saved_project
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 538) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 539)     def add_rule(self, name, callable):
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 540)         """Makes rule 'name' available to all subsequently loaded Jamfiles.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 541) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 542)         Calling that rule wil relay to 'callable'."""
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 543)         self.project_rules_.add_rule(name, callable)
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 544) 
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 545)     def project_rules(self):
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 546)         return self.project_rules_
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 547) 
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 548)     def glob_internal(self, project, wildcards, excludes, rule_name):
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 549)         location = project.get("source-location")
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 550) 
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 551)         result = []
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 552)         callable = b2.util.path.__dict__[rule_name]
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 553)         
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 554)         paths = callable(location, wildcards, excludes)
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 555)         has_dir = 0
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 556)         for w in wildcards:
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 557)             if os.path.dirname(w):
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 558)                 has_dir = 1
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 559)                 break
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 560) 
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 561)         if has_dir or rule_name != "glob":
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 562)             # The paths we've found are relative to current directory,
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 563)             # but the names specified in sources list are assumed to
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 564)             # be relative to source directory of the corresponding
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 565)             # prject. So, just make the name absolute.
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 566)             result = [os.path.join(os.getcwd(), p) for p in paths]
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 567)         else:
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 568)             # There were not directory in wildcard, so the files are all
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 569)             # in the source directory of the project. Just drop the
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 570)             # directory, instead of making paths absolute.
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 571)             result = [os.path.basename(p) for p in paths]
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 572)             
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 573)         return result
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 574) 
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 575)     def load_module(self, name, extra_path=None):
+53b0faa2 (jhunold       2008-08-10 18:25:50 +0000 576)         """Classic Boost.Build 'modules' are in fact global variables.
+53b0faa2 (jhunold       2008-08-10 18:25:50 +0000 577)         Therefore, try to find an already loaded Python module called 'name' in sys.modules. 
+53b0faa2 (jhunold       2008-08-10 18:25:50 +0000 578)         If the module ist not loaded, find it Boost.Build search
+53b0faa2 (jhunold       2008-08-10 18:25:50 +0000 579)         path and load it.  The new module is not entered in sys.modules.
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 580)         The motivation here is to have disjoint namespace of modules
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 581)         loaded via 'import/using' in Jamfile, and ordinary Python
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 582)         modules. We don't want 'using foo' in Jamfile to load ordinary
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 583)         Python module 'foo' which is going to not work. And we
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 584)         also don't want 'import foo' in regular Python module to
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 585)         accidentally grab module named foo that is internal to
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 586)         Boost.Build and intended to provide interface to Jamfiles."""
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 587) 
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 588)         existing = self.loaded_tool_modules_.get(name)
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 589)         if existing:
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 590)             return existing
+53b0faa2 (jhunold       2008-08-10 18:25:50 +0000 591) 
+53b0faa2 (jhunold       2008-08-10 18:25:50 +0000 592)         modules = sys.modules
+53b0faa2 (jhunold       2008-08-10 18:25:50 +0000 593)         for class_name in modules:
+53b0faa2 (jhunold       2008-08-10 18:25:50 +0000 594)             if name in class_name:
+53b0faa2 (jhunold       2008-08-10 18:25:50 +0000 595)                 module = modules[class_name]
+53b0faa2 (jhunold       2008-08-10 18:25:50 +0000 596)                 self.loaded_tool_modules_[name] = module
+53b0faa2 (jhunold       2008-08-10 18:25:50 +0000 597)                 return module
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 598)         
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 599)         path = extra_path
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 600)         if not path:
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 601)             path = []
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 602)         path.extend(self.manager.b2.path())
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 603)         location = None
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 604)         for p in path:
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 605)             l = os.path.join(p, name + ".py")
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 606)             if os.path.exists(l):
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 607)                 location = l
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 608)                 break
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 609) 
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 610)         if not location:
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 611)             self.manager.errors()("Cannot find module '%s'" % name)
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 612) 
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 613)         mname = "__build_build_temporary__"
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 614)         file = open(location)
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 615)         try:
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 616)             # TODO: this means we'll never make use of .pyc module,
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 617)             # which might be a problem, or not.
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 618)             module = imp.load_module(mname, file, os.path.basename(location),
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 619)                                      (".py", "r", imp.PY_SOURCE))
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 620)             del sys.modules[mname]
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 621)             self.loaded_tool_modules_[name] = module
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 622)             return module
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 623)         finally:
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 624)             file.close()
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 625)         
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 626) 
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 627) 
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 628) # FIXME:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 629) # Defines a Boost.Build extension project. Such extensions usually
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 630) # contain library targets and features that can be used by many people.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 631) # Even though extensions are really projects, they can be initialize as
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 632) # a module would be with the "using" (project.project-rules.using)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 633) # mechanism.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 634) #rule extension ( id : options * : * )
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 635) #{
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 636) #    # The caller is a standalone module for the extension.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 637) #    local mod = [ CALLER_MODULE ] ;
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 638) #    
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 639) #    # We need to do the rest within the extension module.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 640) #    module $(mod)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 641) #    {
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 642) #        import path ;
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 643) #        
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 644) #        # Find the root project.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 645) #        local root-project = [ project.current ] ;
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 646) #        root-project = [ $(root-project).project-module ] ;
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 647) #        while
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 648) #            [ project.attribute $(root-project) parent-module ] &&
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 649) #            [ project.attribute $(root-project) parent-module ] != user-config
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 650) #        {
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 651) #            root-project = [ project.attribute $(root-project) parent-module ] ;
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 652) #        }
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 653) #        
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 654) #        # Create the project data, and bring in the project rules
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 655) #        # into the module.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 656) #        project.initialize $(__name__) :
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 657) #            [ path.join [ project.attribute $(root-project) location ] ext $(1:L) ] ;
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 658) #        
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 659) #        # Create the project itself, i.e. the attributes.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 660) #        # All extensions are created in the "/ext" project space.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 661) #        project /ext/$(1) : $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ;
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 662) #        local attributes = [ project.attributes $(__name__) ] ;
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 663) #        
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 664) #        # Inherit from the root project of whomever is defining us.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 665) #        project.inherit-attributes $(__name__) : $(root-project) ;
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 666) #        $(attributes).set parent-module : $(root-project) : exact ;
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 667) #    }
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 668) #}
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 669)         
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 670) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 671) class ProjectAttributes:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 672)     """Class keeping all the attributes of a project.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 673) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 674)     The standard attributes are 'id', "location", "project-root", "parent"
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 675)     "requirements", "default-build", "source-location" and "projects-to-build".
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 676)     """
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 677)         
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 678)     def __init__(self, manager, location, project_module):
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 679)         self.manager = manager
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 680)         self.location = location
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 681)         self.project_module = project_module
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 682)         self.attributes = {}
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 683)         self.usage_requirements = None
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 684)         
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 685)     def set(self, attribute, specification, exact):
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 686)         """Set the named attribute from the specification given by the user.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 687)         The value actually set may be different."""
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 688) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 689)         if exact:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 690)             self.__dict__[attribute] = specification
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 691)             
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 692)         elif attribute == "requirements":
+0317671e (vladimir_prus 2007-10-28 14:02:06 +0000 693)             self.requirements = property_set.refine_from_user_input(
+0317671e (vladimir_prus 2007-10-28 14:02:06 +0000 694)                 self.requirements, specification,
+0317671e (vladimir_prus 2007-10-28 14:02:06 +0000 695)                 self.project_module, self.location)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 696)             
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 697)         elif attribute == "usage-requirements":
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 698)             unconditional = []
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 699)             for p in specification:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 700)                 split = property.split_conditional(p)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 701)                 if split:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 702)                     unconditional.append(split[1])
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 703)                 else:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 704)                     unconditional.append(p)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 705) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 706)             non_free = property.remove("free", unconditional)
+0317671e (vladimir_prus 2007-10-28 14:02:06 +0000 707)             if non_free:                
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 708)                 pass
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 709)                 # FIXME:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 710)                 #errors.error "usage-requirements" $(specification) "have non-free properties" $(non-free) ;
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 711) 
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 712)             t = property.translate_paths(specification, self.location)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 713) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 714)             existing = self.__dict__.get("usage-requirements")
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 715)             if existing:
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 716)                 new = property_set.create(existing.raw() +  t)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 717)             else:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 718)                 new = property_set.create(t)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 719)             self.__dict__["usage-requirements"] = new
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 720) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 721)                 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 722)         elif attribute == "default-build":
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 723)             self.__dict__["default-build"] = property_set.create(specification)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 724)             
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 725)         elif attribute == "source-location":
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 726)             source_location = []
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 727)             for path in specification:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 728)                 source_location += os.path.join(self.location, path)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 729)             self.__dict__["source-location"] = source_location
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 730)                 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 731)         elif attribute == "build-dir":
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 732)             self.__dict__["build-dir"] = os.path.join(self.location, specification)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 733)                  
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 734)         elif not attribute in ["id", "default-build", "location",
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 735)                                "source-location", "parent",
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 736)                                "projects-to-build", "project-root"]:
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 737)             self.manager.errors()(
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 738) """Invalid project attribute '%s' specified
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 739) for project at '%s'""" % (attribute, self.location))
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 740)         else:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 741)             self.__dict__[attribute] = specification
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 742) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 743)     def get(self, attribute):
+cde6f09a (vladimir_prus 2007-10-19 23:12:33 +0000 744)         return self.__dict__[attribute]
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 745) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 746)     def dump(self):
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 747)         """Prints the project attributes."""
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 748)         id = self.get("id")
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 749)         if not id:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 750)             id = "(none)"
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 751)         else:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 752)             id = id[0]
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 753) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 754)         parent = self.get("parent")
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 755)         if not parent:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 756)             parent = "(none)"
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 757)         else:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 758)             parent = parent[0]
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 759) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 760)         print "'%s'" % id
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 761)         print "Parent project:%s", parent
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 762)         print "Requirements:%s", self.get("requirements")
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 763)         print "Default build:%s", string.join(self.get("debuild-build"))
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 764)         print "Source location:%s", string.join(self.get("source-location"))
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 765)         print "Projects to build:%s", string.join(self.get("projects-to-build").sort());
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 766) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 767) class ProjectRules:
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 768)     """Class keeping all rules that are made available to Jamfile."""
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 769) 
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 770)     def __init__(self, registry):
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 771)         self.registry = registry
+0317671e (vladimir_prus 2007-10-28 14:02:06 +0000 772)         self.manager_ = registry.manager
+38d984eb (vladimir_prus 2007-10-13 17:52:25 +0000 773)         self.rules = {}
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 774)         self.local_names = [x for x in self.__class__.__dict__
+0317671e (vladimir_prus 2007-10-28 14:02:06 +0000 775)                             if x not in ["__init__", "init_project", "add_rule",
+7da7f9c1 (vladimir_prus 2008-05-18 04:29:53 +0000 776)                                          "error_reporting_wrapper", "add_rule_for_type"]]
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 777)         self.all_names_ = [x for x in self.local_names]
+7da7f9c1 (vladimir_prus 2008-05-18 04:29:53 +0000 778) 
+7da7f9c1 (vladimir_prus 2008-05-18 04:29:53 +0000 779)     def add_rule_for_type(self, type):
+7da7f9c1 (vladimir_prus 2008-05-18 04:29:53 +0000 780)         rule_name = type.lower();
+7da7f9c1 (vladimir_prus 2008-05-18 04:29:53 +0000 781) 
+7da7f9c1 (vladimir_prus 2008-05-18 04:29:53 +0000 782)         def xpto (name, sources, requirements = [], default_build = None, usage_requirements = []):
+7da7f9c1 (vladimir_prus 2008-05-18 04:29:53 +0000 783)             return self.manager_.targets().create_typed_target(
+7da7f9c1 (vladimir_prus 2008-05-18 04:29:53 +0000 784)                 type, self.registry.current(), name[0], sources,
+7da7f9c1 (vladimir_prus 2008-05-18 04:29:53 +0000 785)                 requirements, default_build, usage_requirements) 
+7da7f9c1 (vladimir_prus 2008-05-18 04:29:53 +0000 786) 
+7da7f9c1 (vladimir_prus 2008-05-18 04:29:53 +0000 787)         self.add_rule(type.lower(), xpto)
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 788)     
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 789)     def add_rule(self, name, callable):
+38d984eb (vladimir_prus 2007-10-13 17:52:25 +0000 790)         self.rules[name] = callable
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 791)         self.all_names_.append(name)
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 792) 
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 793)     def all_names(self):
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 794)         return self.all_names_
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 795) 
+0317671e (vladimir_prus 2007-10-28 14:02:06 +0000 796)     def call_and_report_errors(self, callable, *args):
+0317671e (vladimir_prus 2007-10-28 14:02:06 +0000 797)         result = None
+0317671e (vladimir_prus 2007-10-28 14:02:06 +0000 798)         try:
+0317671e (vladimir_prus 2007-10-28 14:02:06 +0000 799)             self.manager_.errors().push_jamfile_context()
+0317671e (vladimir_prus 2007-10-28 14:02:06 +0000 800)             result = callable(*args)
+0317671e (vladimir_prus 2007-10-28 14:02:06 +0000 801)         except ExceptionWithUserContext, e:
+0317671e (vladimir_prus 2007-10-28 14:02:06 +0000 802)             e.report()
+0317671e (vladimir_prus 2007-10-28 14:02:06 +0000 803)         except Exception, e:
+7da7f9c1 (vladimir_prus 2008-05-18 04:29:53 +0000 804)             try:
+7da7f9c1 (vladimir_prus 2008-05-18 04:29:53 +0000 805)                 self.manager_.errors().handle_stray_exception (e)
+7da7f9c1 (vladimir_prus 2008-05-18 04:29:53 +0000 806)             except ExceptionWithUserContext, e:
+7da7f9c1 (vladimir_prus 2008-05-18 04:29:53 +0000 807)                 e.report()
+0317671e (vladimir_prus 2007-10-28 14:02:06 +0000 808)         finally:                
+0317671e (vladimir_prus 2007-10-28 14:02:06 +0000 809)             self.manager_.errors().pop_jamfile_context()
+0317671e (vladimir_prus 2007-10-28 14:02:06 +0000 810)                                         
+0317671e (vladimir_prus 2007-10-28 14:02:06 +0000 811)         return result
+0317671e (vladimir_prus 2007-10-28 14:02:06 +0000 812) 
+0317671e (vladimir_prus 2007-10-28 14:02:06 +0000 813)     def make_wrapper(self, callable):
+0317671e (vladimir_prus 2007-10-28 14:02:06 +0000 814)         """Given a free-standing function 'callable', return a new
+0317671e (vladimir_prus 2007-10-28 14:02:06 +0000 815)         callable that will call 'callable' and report all exceptins,
+0317671e (vladimir_prus 2007-10-28 14:02:06 +0000 816)         using 'call_and_report_errors'."""
+0317671e (vladimir_prus 2007-10-28 14:02:06 +0000 817)         def wrapper(*args):
+0317671e (vladimir_prus 2007-10-28 14:02:06 +0000 818)             self.call_and_report_errors(callable, *args)
+0317671e (vladimir_prus 2007-10-28 14:02:06 +0000 819)         return wrapper
+0317671e (vladimir_prus 2007-10-28 14:02:06 +0000 820) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 821)     def init_project(self, project_module):
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 822) 
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 823)         for n in self.local_names:            
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 824)             # Using 'getattr' here gives us a bound method,
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 825)             # while using self.__dict__[r] would give unbound one.
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 826)             v = getattr(self, n)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 827)             if callable(v):
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 828)                 if n == "import_":
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 829)                     n = "import"
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 830)                 else:
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 831)                     n = string.replace(n, "_", "-")
+0317671e (vladimir_prus 2007-10-28 14:02:06 +0000 832)                     
+0317671e (vladimir_prus 2007-10-28 14:02:06 +0000 833)                 bjam.import_rule(project_module, n,
+0317671e (vladimir_prus 2007-10-28 14:02:06 +0000 834)                                  self.make_wrapper(v))
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 835) 
+38d984eb (vladimir_prus 2007-10-13 17:52:25 +0000 836)         for n in self.rules:
+0317671e (vladimir_prus 2007-10-28 14:02:06 +0000 837)             bjam.import_rule(project_module, n,
+0317671e (vladimir_prus 2007-10-28 14:02:06 +0000 838)                              self.make_wrapper(self.rules[n]))
+38d984eb (vladimir_prus 2007-10-13 17:52:25 +0000 839) 
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 840)     def project(self, *args):
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 841) 
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 842)         jamfile_module = self.registry.current().project_module()
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 843)         attributes = self.registry.attributes(jamfile_module)
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 844)         
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 845)         id = None
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 846)         if args and args[0]:
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 847)             id = args[0][0]
+092119e3 (vladimir_prus 2007-10-16 05:45:31 +0000 848)             args = args[1:]
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 849) 
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 850)         if id:
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 851)             if id[0] != '/':
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 852)                 id = '/' + id
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 853)             self.registry.register_id (id, jamfile_module)
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 854) 
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 855)         explicit_build_dir = None
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 856)         for a in args:
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 857)             if a:
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 858)                 attributes.set(a[0], a[1:], exact=0)
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 859)                 if a[0] == "build-dir":
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 860)                     explicit_build_dir = a[1]
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 861)         
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 862)         # If '--build-dir' is specified, change the build dir for the project.
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 863)         if self.registry.global_build_dir:
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 864) 
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 865)             location = attributes.get("location")
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 866)             # Project with empty location is 'standalone' project, like
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 867)             # user-config, or qt.  It has no build dir.
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 868)             # If we try to set build dir for user-config, we'll then
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 869)             # try to inherit it, with either weird, or wrong consequences.
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 870)             if location and location == attributes.get("project-root"):
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 871)                 # This is Jamroot.
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 872)                 if id:
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 873)                     if explicit_build_dir and os.path.isabs(explicit_build_dir):
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 874)                         self.register.manager.errors()(
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 875) """Absolute directory specified via 'build-dir' project attribute
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 876) Don't know how to combine that with the --build-dir option.""")
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 877) 
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 878)                     rid = id
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 879)                     if rid[0] == '/':
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 880)                         rid = rid[1:]
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 881) 
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 882)                     p = os.path.join(self.registry.global_build_dir,
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 883)                                      rid, explicit_build_dir)
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 884)                     attributes.set("build-dir", p, exact=1)
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 885)             elif explicit_build_dir:
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 886)                 self.registry.manager.errors()(
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 887) """When --build-dir is specified, the 'build-project'
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 888) attribute is allowed only for top-level 'project' invocations""")
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 889) 
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 890)     def constant(self, name, value):
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 891)         """Declare and set a project global constant.
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 892)         Project global constants are normal variables but should
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 893)         not be changed. They are applied to every child Jamfile."""
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 894)         m = "Jamfile</home/ghost/Work/Boost/boost-svn/tools/build/v2_python/python/tests/bjam/make>"
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 895)         self.registry.current().add_constant(name[0], value)
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 896) 
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 897)     def path_constant(self, name, value):
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 898)         """Declare and set a project global constant, whose value is a path. The
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 899)         path is adjusted to be relative to the invocation directory. The given
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 900)         value path is taken to be either absolute, or relative to this project
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 901)         root."""
+0ed8e16d (vladimir_prus 2007-10-13 21:34:05 +0000 902)         self.registry.current().add_constant(name[0], value, path=1)
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 903) 
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 904)     def use_project(self, id, where):
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 905)         # See comment in 'load' for explanation why we record the
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 906)         # parameters as opposed to loading the project now.
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 907)         m = self.registry.current().project_module();
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 908)         self.registry.used_projects[m].append((id, where))
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 909)         
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 910)     def build_project(self, dir):
+1674e2d9 (jhunold       2008-08-08 19:52:05 +0000 911)         assert(isinstance(dir, list))
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 912)         jamfile_module = self.registry.current().project_module()
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 913)         attributes = self.registry.attributes(jamfile_module)
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 914)         now = attributes.get("projects-to-build")
+1674e2d9 (jhunold       2008-08-08 19:52:05 +0000 915)         attributes.set("projects-to-build", now + dir, exact=True)
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 916) 
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 917)     def explicit(self, target_names):
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 918)         t = self.registry.current()
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 919)         for n in target_names:
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 920)             t.mark_target_as_explicit(n)
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 921) 
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 922)     def glob(self, wildcards, excludes=None):
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 923)         return self.registry.glob_internal(self.registry.current(),
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 924)                                            wildcards, excludes, "glob")
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 925) 
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 926)     def glob_tree(self, wildcards, excludes=None):
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 927)         bad = 0
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 928)         for p in wildcards:
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 929)             if os.path.dirname(p):
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 930)                 bad = 1
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 931) 
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 932)         if excludes:
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 933)             for p in excludes:
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 934)                 if os.path.dirname(p):
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 935)                     bad = 1
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 936) 
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 937)         if bad:
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 938)             self.registry.manager().errors()(
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 939) "The patterns to 'glob-tree' may not include directory")
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 940)         return self.registry.glob_internal(self.registry.current(),
+2a36874b (vladimir_prus 2007-10-14 07:20:55 +0000 941)                                            wildcards, excludes, "glob_tree")
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 942)     
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 943) 
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 944)     def using(self, toolset, *args):
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 945)         # The module referred by 'using' can be placed in
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 946)         # the same directory as Jamfile, and the user
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 947)         # will expect the module to be found even though
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 948)         # the directory is not in BOOST_BUILD_PATH.
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 949)         # So temporary change the search path.
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 950)         jamfile_module = self.registry.current().project_module()
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 951)         attributes = self.registry.attributes(jamfile_module)
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 952)         location = attributes.get("location")
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 953) 
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 954)         m = self.registry.load_module(toolset[0], [location])
+7da7f9c1 (vladimir_prus 2008-05-18 04:29:53 +0000 955)         if not m.__dict__.has_key("init"):
+7da7f9c1 (vladimir_prus 2008-05-18 04:29:53 +0000 956)             self.registry.manager.errors()(
+7da7f9c1 (vladimir_prus 2008-05-18 04:29:53 +0000 957)                 "Tool module '%s' does not define the 'init' method" % toolset[0])
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 958)         m.init(*args)
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 959) 
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 960) 
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 961)     def import_(self, name, names_to_import=None, local_names=None):
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 962) 
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 963)         name = name[0]
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 964)         jamfile_module = self.registry.current().project_module()
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 965)         attributes = self.registry.attributes(jamfile_module)
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 966)         location = attributes.get("location")
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 967) 
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 968)         m = self.registry.load_module(name, [location])
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 969) 
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 970)         for f in m.__dict__:
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 971)             v = m.__dict__[f]
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 972)             if callable(v):
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 973)                 bjam.import_rule(jamfile_module, name + "." + f, v)
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 974) 
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 975)         if names_to_import:
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 976)             if not local_names:
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 977)                 local_names = names_to_import
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 978) 
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 979)             if len(names_to_import) != len(local_names):
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 980)                 self.registry.manager.errors()(
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 981) """The number of names to import and local names do not match.""")
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 982) 
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 983)             for n, l in zip(names_to_import, local_names):
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 984)                 bjam.import_rule(jamfile_module, l, m.__dict__[n])
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 985)         
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 986)     def conditional(self, condition, requirements):
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 987)         """Calculates conditional requirements for multiple requirements
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 988)         at once. This is a shorthand to be reduce duplication and to
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 989)         keep an inline declarative syntax. For example:
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 990) 
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 991)             lib x : x.cpp : [ conditional <toolset>gcc <variant>debug :
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 992)                 <define>DEBUG_EXCEPTION <define>DEBUG_TRACE ] ;
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 993)         """
+f049766b (vladimir_prus 2007-10-10 09:31:06 +0000 994) 
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 995)         c = string.join(condition, ",")
+f2aef897 (vladimir_prus 2007-10-14 09:19:52 +0000 996)         return [c + ":" + r for r in requirements]
diff --git a/jam-files/boost-build/build/project.jam b/jam-files/boost-build/build/project.jam
new file mode 100644
index 00000000..c9967613
--- /dev/null
+++ b/jam-files/boost-build/build/project.jam
@@ -0,0 +1,1110 @@
+# Copyright 2002, 2003 Dave Abrahams
+# Copyright 2002, 2005, 2006 Rene Rivera
+# Copyright 2002, 2003, 2004, 2005, 2006 Vladimir Prus
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+# Implements project representation and loading. Each project is represented by:
+#  - a module where all the Jamfile content live.
+#  - an instance of 'project-attributes' class.
+#    (given a module name, can be obtained using the 'attributes' rule)
+#  - an instance of 'project-target' class (from targets.jam)
+#    (given a module name, can be obtained using the 'target' rule)
+#
+# Typically, projects are created as result of loading a Jamfile, which is done
+# by rules 'load' and 'initialize', below. First, module for Jamfile is loaded
+# and new project-attributes instance is created. Some rules necessary for
+# project are added to the module (see 'project-rules' module) at the bottom of
+# this file. Default project attributes are set (inheriting attributes of parent
+# project, if it exists). After that the Jamfile is read. It can declare its own
+# attributes using the 'project' rule which will be combined with any already
+# set attributes.
+#
+# The 'project' rule can also declare a project id which will be associated with
+# the project module.
+#
+# There can also be 'standalone' projects. They are created by calling
+# 'initialize' on an arbitrary module and not specifying their location. After
+# the call, the module can call the 'project' rule, declare main targets and
+# behave as a regular project except that, since it is not associated with any
+# location, it should not declare targets that are not prebuilt.
+#
+# The list of all loaded Jamfile is stored in the .project-locations variable.
+# It is possible to obtain a module name for a location using the 'module-name'
+# rule. Standalone projects are not recorded and can only be referenced using
+# their project id.
+
+import "class" : new ;
+import errors ;
+import modules ;
+import path ;
+import print ;
+import property-set ;
+import sequence ;
+
+
+# Loads the Jamfile at the given location. After loading, project global file
+# and Jamfiles needed by the requested one will be loaded recursively. If the
+# Jamfile at that location is loaded already, does nothing. Returns the project
+# module for the Jamfile.
+#
+rule load ( jamfile-location )
+{
+    if --debug-loading in [ modules.peek : ARGV ]
+    {
+        ECHO "Loading Jamfile at" '$(jamfile-location)' ;
+    }
+
+    local module-name = [ module-name $(jamfile-location) ] ;
+    # If Jamfile is already loaded, don't try again.
+    if ! $(module-name) in $(.jamfile-modules)
+    {
+        load-jamfile $(jamfile-location) : $(module-name) ;
+
+        # We want to make sure that child project are loaded only after parent
+        # projects. In particular, because parent projects define attributes
+        # which are inherited by children, and we don't want children to be
+        # loaded before parent has defined everything.
+        #
+        # While "build-project" and "use-project" can potentially refer to child
+        # projects from parent projects, we don't immediately load child
+        # projects when seeing those attributes. Instead, we record the minimal
+        # information to be used only later.
+        load-used-projects $(module-name) ;
+    }
+    return $(module-name) ;
+}
+
+
+rule load-used-projects ( module-name )
+{
+    local used = [ modules.peek $(module-name) : .used-projects ] ;
+    local location = [ attribute $(module-name) location ] ;
+    import project ;
+    while $(used)
+    {
+        local id = $(used[1]) ;
+        local where = $(used[2]) ;
+
+        project.use $(id) : [ path.root [ path.make $(where) ] $(location) ] ;
+        used = $(used[3-]) ;
+    }
+}
+
+
+# Note the use of character groups, as opposed to listing 'Jamroot' and
+# 'jamroot'. With the latter, we would get duplicate matches on Windows and
+# would have to eliminate duplicates.
+JAMROOT ?= [ modules.peek : JAMROOT ] ;
+JAMROOT ?= project-root.jam [Jj]amroot [Jj]amroot.jam ;
+
+
+# Loads parent of Jamfile at 'location'. Issues an error if nothing is found.
+#
+rule load-parent ( location )
+{
+    local found = [ path.glob-in-parents $(location) : $(JAMROOT) $(JAMFILE) ] ;
+
+    if ! $(found)
+    {
+        ECHO error: Could not find parent for project at '$(location)' ;
+        EXIT error: Did not find Jamfile.jam or Jamroot.jam in any parent
+            directory. ;
+    }
+
+    return [ load $(found[1]:D) ] ;
+}
+
+
+# Makes the specified 'module' act as if it were a regularly loaded Jamfile at
+# 'location'. Reports an error if a Jamfile has already been loaded for that
+# location.
+#
+rule act-as-jamfile ( module : location )
+{
+    if [ module-name $(location) ] in $(.jamfile-modules)
+    {
+        errors.error "Jamfile was already loaded for '$(location)'" ;
+    }
+    # Set up non-default mapping from location to module.
+    .module.$(location) = $(module) ;
+
+    # Add the location to the list of project locations so that we don't try to
+    # reload the same Jamfile in the future.
+    .jamfile-modules += [ module-name $(location) ] ;
+
+    initialize $(module) : $(location) ;
+}
+
+
+# Returns the project module corresponding to the given project-id or plain
+# directory name. Returns nothing if such a project can not be found.
+#
+rule find ( name : current-location )
+{
+    local project-module ;
+
+    # Try interpreting name as project id.
+    if [ path.is-rooted $(name) ]
+    {
+        project-module = $($(name).jamfile-module) ;
+    }
+
+    if ! $(project-module)
+    {
+        local location = [ path.root [ path.make $(name) ] $(current-location) ]
+            ;
+
+        # If no project is registered for the given location, try to load it.
+        # First see if we have a Jamfile. If not, then see if we might have a
+        # project root willing to act as a Jamfile. In that case, project root
+        # must be placed in the directory referred by id.
+
+        project-module = [ module-name $(location) ] ;
+        if ! $(project-module) in $(.jamfile-modules)
+        {
+            if [ path.glob $(location) : $(JAMROOT) $(JAMFILE) ]
+            {
+                project-module = [ load $(location) ] ;
+            }
+            else
+            {
+                project-module = ;
+            }
+        }
+    }
+
+    return $(project-module) ;
+}
+
+
+# Returns the name of the module corresponding to 'jamfile-location'. If no
+# module corresponds to that location yet, associates the default module name
+# with that location.
+#
+rule module-name ( jamfile-location )
+{
+    if ! $(.module.$(jamfile-location))
+    {
+        # Root the path, so that locations are always unambiguous. Without this,
+        # we can't decide if '../../exe/program1' and '.' are the same paths.
+        jamfile-location = [ path.root $(jamfile-location) [ path.pwd ] ] ;
+        .module.$(jamfile-location) = Jamfile<$(jamfile-location)> ;
+    }
+    return $(.module.$(jamfile-location)) ;
+}
+
+
+# Default patterns to search for the Jamfiles to use for build declarations.
+#
+JAMFILE = [ modules.peek : JAMFILE ] ;
+JAMFILE ?= [Bb]uild.jam [Jj]amfile.v2 [Jj]amfile [Jj]amfile.jam ;
+
+
+# Find the Jamfile at the given location. This returns the exact names of all
+# the Jamfiles in the given directory. The optional parent-root argument causes
+# this to search not the given directory but the ones above it up to the
+# directory given in it.
+#
+rule find-jamfile (
+    dir # The directory(s) to look for a Jamfile.
+    parent-root ? # Optional flag indicating to search for the parent Jamfile.
+    : no-errors ?
+    )
+{
+    # Glob for all the possible Jamfiles according to the match pattern.
+    #
+    local jamfile-glob = ;
+    if $(parent-root)
+    {
+        if ! $(.parent-jamfile.$(dir))
+        {
+            .parent-jamfile.$(dir) = [ path.glob-in-parents $(dir) : $(JAMFILE)
+                ] ;
+        }
+        jamfile-glob = $(.parent-jamfile.$(dir)) ;
+    }
+    else
+    {
+        if ! $(.jamfile.$(dir))
+        {
+            .jamfile.$(dir) = [ path.glob $(dir) : $(JAMFILE) ] ;
+        }
+        jamfile-glob = $(.jamfile.$(dir)) ;
+
+    }
+
+    local jamfile-to-load = $(jamfile-glob) ;
+    # Multiple Jamfiles found in the same place. Warn about this and ensure we
+    # use only one of them. As a temporary convenience measure, if there is
+    # Jamfile.v2 among found files, suppress the warning and use it.
+    #
+    if $(jamfile-to-load[2-])
+    {
+        local v2-jamfiles = [ MATCH (.*[Jj]amfile\\.v2)|(.*[Bb]uild\\.jam) : $(jamfile-to-load) ] ;
+
+        if $(v2-jamfiles) && ! $(v2-jamfiles[2])
+        {
+            jamfile-to-load = $(v2-jamfiles) ;
+        }
+        else
+        {
+            local jamfile = [ path.basename $(jamfile-to-load[1]) ] ;
+            ECHO "warning: Found multiple Jamfiles at '"$(dir)"'!"
+                "Loading the first one: '$(jamfile)'." ;
+        }
+
+        jamfile-to-load = $(jamfile-to-load[1]) ;
+    }
+
+    # Could not find it, error.
+    #
+    if ! $(no-errors) && ! $(jamfile-to-load)
+    {
+        errors.error Unable to load Jamfile.
+            : Could not find a Jamfile in directory '$(dir)'.
+            : Attempted to find it with pattern '"$(JAMFILE:J=" ")"'.
+            : Please consult the documentation at 'http://www.boost.org'. ;
+    }
+
+    return $(jamfile-to-load) ;
+}
+
+
+# Load a Jamfile at the given directory. Returns nothing. Will attempt to load
+# the file as indicated by the JAMFILE patterns. Effect of calling this rule
+# twice with the same 'dir' is undefined.
+#
+local rule load-jamfile (
+    dir  # The directory of the project Jamfile.
+    : jamfile-module
+    )
+{
+    # See if the Jamfile is where it should be.
+    #
+    local jamfile-to-load = [ path.glob $(dir) : $(JAMROOT) ] ;
+    if ! $(jamfile-to-load)
+    {
+        jamfile-to-load = [ find-jamfile $(dir) ] ;
+    }
+    
+    if $(jamfile-to-load[2])
+    {
+        errors.error "Multiple Jamfiles found at '$(dir)'" 
+          :  "Filenames are: " $(jamfile-to-load:D=) ;
+    }
+    
+    # Now load the Jamfile in it's own context. 
+    # The call to 'initialize' may load parent Jamfile, which might have
+    # 'use-project' statement that causes a second attempt to load the
+    # same project we're loading now.  Checking inside .jamfile-modules
+    # prevents that second attempt from messing up.
+    if ! $(jamfile-module) in $(.jamfile-modules)
+    {
+        .jamfile-modules += $(jamfile-module) ;
+
+        # Initialize the Jamfile module before loading.
+        #
+        initialize $(jamfile-module) : [ path.parent $(jamfile-to-load) ]
+            : $(jamfile-to-load:BS) ;
+
+        local saved-project = $(.current-project) ;
+
+        mark-as-user $(jamfile-module) ;
+        modules.load $(jamfile-module) : [ path.native $(jamfile-to-load) ] : . ;
+        if [ MATCH ($(JAMROOT)) : $(jamfile-to-load:BS) ]
+        {
+            jamfile = [ find-jamfile $(dir) : no-errors ] ;
+            if $(jamfile)
+            {
+                load-aux $(jamfile-module) : [ path.native $(jamfile) ] ;
+            }
+        }
+
+    # Now do some checks.
+    if $(.current-project) != $(saved-project)
+    {
+        errors.error "The value of the .current-project variable has magically"
+            : "changed after loading a Jamfile. This means some of the targets"
+            : "might be defined in the wrong project."
+            : "after loading" $(jamfile-module)
+            : "expected value" $(saved-project)
+            : "actual value" $(.current-project) ;
+    }
+
+    if $(.global-build-dir)
+    {
+        local id           = [ attribute $(jamfile-module) id           ] ;
+        local project-root = [ attribute $(jamfile-module) project-root ] ;
+        local location     = [ attribute $(jamfile-module) location     ] ;
+
+        if $(location) && $(project-root) = $(dir)
+        {
+            # This is Jamroot.
+            if ! $(id)
+            {
+                ECHO "warning: the --build-dir option was specified" ;
+                ECHO "warning: but Jamroot at '$(dir)'" ;
+                ECHO "warning: specified no project id" ;
+                ECHO "warning: the --build-dir option will be ignored" ;
+            }
+        }
+    }
+    }
+}
+
+
+rule mark-as-user ( module-name )
+{
+    if USER_MODULE in [ RULENAMES ]
+    {
+        USER_MODULE $(module-name) ;
+    }
+}
+
+
+rule load-aux ( module-name : file )
+{
+    mark-as-user $(module-name) ;
+
+    module $(module-name)
+    {
+        include $(2) ;
+        local rules = [ RULENAMES $(1) ] ;
+        IMPORT $(1) : $(rules) : $(1) : $(1).$(rules) ;
+    }
+}
+
+
+.global-build-dir = [ MATCH --build-dir=(.*) : [ modules.peek : ARGV ] ] ;
+if $(.global-build-dir)
+{
+    # If the option is specified several times, take the last value.
+    .global-build-dir = [ path.make $(.global-build-dir[-1]) ] ;
+}
+
+
+# Initialize the module for a project.
+#
+rule initialize (
+    module-name   # The name of the project module.
+    : location ?  # The location (directory) of the project to initialize. If
+                  # not specified, a standalone project will be initialized.
+    : basename ?
+    )
+{
+    if --debug-loading in [ modules.peek : ARGV ]
+    {
+        ECHO "Initializing project '$(module-name)'" ;
+    }
+
+    # TODO: need to consider if standalone projects can do anything but define
+    # prebuilt targets. If so, we need to give it a more sensible "location", so
+    # that source paths are correct.
+    location ?= "" ;
+    # Create the module for the Jamfile first.
+    module $(module-name)
+    {
+    }
+    $(module-name).attributes = [ new project-attributes $(location)
+        $(module-name) ] ;
+    local attributes = $($(module-name).attributes) ;
+
+    if $(location)
+    {
+        $(attributes).set source-location : [ path.make $(location) ] : exact ;
+    }
+    else if ! $(module-name) in test-config site-config user-config project-config
+    {
+        # This is a standalone project with known location. Set source location
+        # so that it can declare targets. This is intended so that you can put
+        # a .jam file in your sources and use it via 'using'. Standard modules
+        # (in 'tools' subdir) may not assume source dir is set.
+        local s = [ modules.binding $(module-name) ] ;
+        if ! $(s)
+        {
+            errors.error "Could not determine project location $(module-name)" ;
+        }        
+        $(attributes).set source-location : $(s:D) : exact ;
+    }
+
+    $(attributes).set requirements       : [ property-set.empty ] : exact ;
+    $(attributes).set usage-requirements : [ property-set.empty ] : exact ;
+
+    # Import rules common to all project modules from project-rules module,
+    # defined at the end of this file.
+    local rules = [ RULENAMES project-rules ] ;
+    IMPORT project-rules : $(rules) : $(module-name) : $(rules) ;
+
+    local jamroot ;
+
+    local parent-module ;
+    if $(module-name) = test-config
+    {
+        # No parent.
+    }
+    else if $(module-name) = site-config
+    {
+        parent-module = test-config ;
+    }
+    else if $(module-name) = user-config
+    {
+        parent-module = site-config ;
+    }
+    else if $(module-name) = project-config
+    {
+        parent-module = user-config ;
+    }    
+    else
+    {
+        # We search for parent/project-root only if Jamfile was specified, i.e.
+        # if the project is not standalone.
+        if $(location) && ! [ MATCH ($(JAMROOT)) : $(basename) ]
+        {
+            parent-module = [ load-parent $(location) ] ;
+        }
+        else
+        {
+            # It's either jamroot or standalone project. If it's jamroot,
+            # inherit from user-config.
+            if $(location)
+            {
+                # If project-config module exist, inherit from it.
+                if $(project-config.attributes)
+                {   
+                    parent-module = project-config ;
+                }
+                else
+                {                    
+                    parent-module = user-config ;
+                }                
+                jamroot = true ;
+            }
+        }
+    }
+
+    if $(parent-module)
+    {
+        inherit-attributes $(module-name) : $(parent-module) ;
+        $(attributes).set parent-module : $(parent-module) : exact ;
+    }
+
+    if $(jamroot)
+    {
+        $(attributes).set project-root : $(location) : exact ;
+    }
+
+    local parent ;
+    if $(parent-module)
+    {
+        parent = [ target $(parent-module) ] ;
+    }
+
+    if ! $(.target.$(module-name))
+    {
+        .target.$(module-name) = [ new project-target $(module-name)
+            : $(module-name) $(parent)
+            : [ attribute $(module-name) requirements ] ] ;
+
+        if --debug-loading in [ modules.peek : ARGV ]
+        {
+            ECHO "Assigned project target" $(.target.$(module-name))
+                "to '$(module-name)'" ;
+        }
+    }
+
+    .current-project = [ target $(module-name) ] ;
+}
+
+
+# Make 'project-module' inherit attributes of project root and parent module.
+#
+rule inherit-attributes ( project-module : parent-module )
+{
+    local attributes = $($(project-module).attributes) ;
+    local pattributes = [ attributes $(parent-module) ] ;
+    # Parent module might be locationless configuration module.
+    if [ modules.binding $(parent-module) ]
+    {
+        $(attributes).set parent : [ path.parent
+            [ path.make [ modules.binding $(parent-module) ] ] ] ;
+    }
+    local v = [ $(pattributes).get project-root ] ;
+    $(attributes).set project-root : $(v) : exact ;
+    $(attributes).set default-build
+        : [ $(pattributes).get default-build ] ;
+    $(attributes).set requirements
+        : [ $(pattributes).get requirements ] : exact ;
+    $(attributes).set usage-requirements
+        : [ $(pattributes).get usage-requirements ] : exact ;
+
+    local parent-build-dir = [ $(pattributes).get build-dir ] ;
+    if $(parent-build-dir)
+    {
+        # Have to compute relative path from parent dir to our dir. Convert both
+        # paths to absolute, since we cannot find relative path from ".." to
+        # ".".
+
+        local location = [ attribute $(project-module) location ] ;
+        local parent-location = [ attribute $(parent-module) location ] ;
+
+        local pwd = [ path.pwd ] ;
+        local parent-dir = [ path.root $(parent-location) $(pwd) ] ;
+        local our-dir = [ path.root $(location) $(pwd) ] ;
+        $(attributes).set build-dir : [ path.join $(parent-build-dir)
+            [ path.relative $(our-dir) $(parent-dir) ] ] : exact ;
+    }
+}
+
+
+# Associate the given id with the given project module.
+#
+rule register-id ( id : module )
+{
+    $(id).jamfile-module = $(module) ;
+}
+
+
+# Class keeping all the attributes of a project.
+#
+# The standard attributes are "id", "location", "project-root", "parent"
+# "requirements", "default-build", "source-location" and "projects-to-build".
+#
+class project-attributes
+{
+    import property ;
+    import property-set ;
+    import errors ;
+    import path ;
+    import print ;
+    import sequence ;
+    import project ;
+
+    rule __init__ ( location project-module )
+    {
+        self.location = $(location) ;
+        self.project-module = $(project-module) ;
+    }
+
+    # Set the named attribute from the specification given by the user. The
+    # value actually set may be different.
+    #
+    rule set ( attribute : specification *
+        : exact ?  # Sets value from 'specification' without any processing.
+        )
+    {
+        if $(exact)
+        {
+            self.$(attribute) = $(specification) ;
+        }
+        else if $(attribute) = "requirements"
+        {
+            local result = [ property-set.refine-from-user-input
+                $(self.requirements) : $(specification)
+                : $(self.project-module) : $(self.location) ] ;
+
+            if $(result[1]) = "@error"
+            {
+                errors.error Requirements for project at '$(self.location)'
+                    conflict with parent's. : Explanation: $(result[2-]) ;
+            }
+            else
+            {
+                self.requirements = $(result) ;
+            }
+        }
+        else if $(attribute) = "usage-requirements"
+        {
+            local unconditional ;
+            for local p in $(specification)
+            {
+                local split = [ property.split-conditional $(p) ] ;
+                split ?= nothing $(p) ;
+                unconditional += $(split[2]) ;
+            }
+
+            local non-free = [ property.remove free : $(unconditional) ] ;
+            if $(non-free)
+            {
+                errors.error usage-requirements $(specification) have non-free
+                    properties $(non-free) ;
+            }
+            local t = [ property.translate-paths $(specification)
+                                      : $(self.location) ] ;
+            if $(self.usage-requirements)
+            {
+                self.usage-requirements = [ property-set.create
+                    [ $(self.usage-requirements).raw ] $(t) ] ;
+            }
+            else
+            {
+                self.usage-requirements = [ property-set.create $(t) ] ;
+            }
+        }
+        else if $(attribute) = "default-build"
+        {
+            self.default-build = [ property.make $(specification) ] ;
+        }
+        else if $(attribute) = "source-location"
+        {
+            self.source-location = ;
+            for local src-path in $(specification)
+            {
+                self.source-location += [ path.root [ path.make $(src-path) ]
+                    $(self.location) ] ;
+            }
+        }
+        else if $(attribute) = "build-dir"
+        {
+            self.build-dir = [ path.root
+                [ path.make $(specification) ] $(self.location) ] ;
+        }
+        else if $(attribute) = "id"
+        {
+            id = [ path.root $(specification) / ] ;
+            project.register-id $(id) : $(self.project-module) ;
+            self.id = $(id) ;
+        }
+        else if ! $(attribute) in "default-build" "location" "parent"
+            "projects-to-build" "project-root" "source-location"
+        {
+            errors.error Invalid project attribute '$(attribute)' specified for
+                project at '$(self.location)' ;
+        }
+        else
+        {
+            self.$(attribute) = $(specification) ;
+        }
+    }
+
+    # Returns the value of the given attribute.
+    #
+    rule get ( attribute )
+    {
+        return $(self.$(attribute)) ;
+    }
+
+    # Prints the project attributes.
+    #
+    rule print ( )
+    {
+        local id = $(self.id) ; id ?= (none) ;
+        local parent = $(self.parent) ; parent ?= (none) ;
+        print.section "'"$(id)"'" ;
+        print.list-start ;
+        print.list-item "Parent project:" $(parent) ;
+        print.list-item "Requirements:" [ $(self.requirements).raw ] ;
+        print.list-item "Default build:" $(self.default-build) ;
+        print.list-item "Source location:" $(self.source-location) ;
+        print.list-item "Projects to build:"
+                        [ sequence.insertion-sort $(self.projects-to-build) ] ;
+        print.list-end ;
+    }
+}
+
+
+# Returns the project which is currently being loaded.
+#
+rule current ( )
+{
+    return $(.current-project) ;
+}
+
+
+# Temporarily changes the current project to 'project'. Should be followed by
+# 'pop-current'.
+#
+rule push-current ( project )
+{
+    .saved-current-project += $(.current-project) ;
+    .current-project = $(project) ;
+}
+
+
+rule pop-current ( )
+{
+    .current-project = $(.saved-current-project[-1]) ;
+    .saved-current-project = $(.saved-current-project[1--2]) ;
+}
+
+
+# Returns the project-attribute instance for the specified Jamfile module.
+#
+rule attributes ( project )
+{
+    return $($(project).attributes) ;
+}
+
+
+# Returns the value of the specified attribute in the specified Jamfile module.
+#
+rule attribute ( project attribute )
+{
+    return [ $($(project).attributes).get $(attribute) ] ;
+}
+
+
+# Returns the project target corresponding to the 'project-module'.
+#
+rule target ( project-module )
+{
+    if ! $(.target.$(project-module))
+    {
+        .target.$(project-module) = [ new project-target $(project-module)
+            : $(project-module)
+            : [ attribute $(project-module) requirements ] ] ;
+    }
+    return $(.target.$(project-module)) ;
+}
+
+
+# Use/load a project.
+#
+rule use ( id : location )
+{
+    local saved-project = $(.current-project) ;
+    local project-module = [ project.load $(location) ] ;
+    local declared-id = [ project.attribute $(project-module) id ] ;
+
+    if ! $(declared-id) || $(declared-id) != $(id)
+    {
+        # The project at 'location' either has no id or that id is not equal to
+        # the 'id' parameter.
+        if $($(id).jamfile-module) && ( $($(id).jamfile-module) !=
+            $(project-module) )
+        {
+            errors.user-error Attempt to redeclare already existing project id
+                '$(id)' 
+                location '$(location)' ;
+        }
+        $(id).jamfile-module = $(project-module) ;
+    }
+    .current-project = $(saved-project) ;
+}
+
+
+# Defines a Boost.Build extension project. Such extensions usually contain
+# library targets and features that can be used by many people. Even though
+# extensions are really projects, they can be initialized as a module would be
+# with the "using" (project.project-rules.using) mechanism.
+#
+rule extension ( id : options * : * )
+{
+    # The caller is a standalone module for the extension.
+    local mod = [ CALLER_MODULE ] ;
+
+    # We need to do the rest within the extension module.
+    module $(mod)
+    {
+        import path ;
+
+        # Find the root project.
+        local root-project = [ project.current ] ;
+        root-project = [ $(root-project).project-module ] ;
+        while
+            [ project.attribute $(root-project) parent-module ] &&
+            [ project.attribute $(root-project) parent-module ] != user-config
+        {
+            root-project = [ project.attribute $(root-project) parent-module ] ;
+        }
+
+        # Create the project data, and bring in the project rules into the
+        # module.
+        project.initialize $(__name__) : [ path.join [ project.attribute
+            $(root-project) location ] ext $(1:L) ] ;
+
+        # Create the project itself, i.e. the attributes. All extensions are
+        # created in the "/ext" project space.
+        project /ext/$(1) : $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) :
+            $(9) ;
+        local attributes = [ project.attributes $(__name__) ] ;
+
+        # Inherit from the root project of whomever is defining us.
+        project.inherit-attributes $(__name__) : $(root-project) ;
+        $(attributes).set parent-module : $(root-project) : exact ;
+    }
+}
+
+
+rule glob-internal ( project : wildcards + : excludes * : rule-name )
+{
+    local location = [ $(project).get source-location ] ;
+
+    local result ;
+    local paths = [ path.$(rule-name) $(location) :
+        [ sequence.transform path.make : $(wildcards) ] :
+        [ sequence.transform path.make : $(excludes) ] ] ;
+    if $(wildcards:D) || $(rule-name) != glob
+    {
+        # The paths we have found are relative to the current directory, but the
+        # names specified in the sources list are assumed to be relative to the
+        # source directory of the corresponding project. So, just make the names
+        # absolute.
+        for local p in $(paths)
+        {
+            # If the path is below source location, use relative path.
+            # Otherwise, use full path just to avoid any ambiguities.
+            local rel = [ path.relative $(p) $(location) : no-error ] ;
+            if $(rel) = not-a-child
+            {                   
+                result += [ path.root $(p) [ path.pwd ] ] ;
+            }
+            else
+            {
+                result += $(rel) ;
+            }                
+        }
+    }
+    else
+    {
+        # There were no wildcards in the directory path, so the files are all in
+        # the source directory of the project. Just drop the directory, instead
+        # of making paths absolute.
+        result = $(paths:D="") ;
+    }
+
+    return $(result) ;
+}
+
+
+# This module defines rules common to all projects.
+#
+module project-rules
+{
+    rule using ( toolset-module : * )
+    {
+        import toolset ;
+        import modules ;
+        import project ;
+
+        # Temporarily change the search path so the module referred to by
+        # 'using' can be placed in the same directory as Jamfile. User will
+        # expect the module to be found even though the directory is not in
+        # BOOST_BUILD_PATH.
+        local x = [ modules.peek : BOOST_BUILD_PATH ] ;
+        local caller = [ CALLER_MODULE ] ;
+        local caller-location = [ modules.binding $(caller) ] ;
+        modules.poke : BOOST_BUILD_PATH : $(caller-location:D) $(x) ;
+        toolset.using $(1) : $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ;
+        modules.poke : BOOST_BUILD_PATH : $(x) ;
+
+        # The above might have clobbered .current-project. Restore the correct
+        # value.
+        modules.poke project : .current-project
+            : [ project.target $(caller) ] ;
+    }
+
+    import modules ;
+
+    rule import ( * : * : * )
+    {
+        modules.import project ;
+
+        local caller = [ CALLER_MODULE ] ;
+        local saved = [ modules.peek project : .current-project ] ;
+        module $(caller)
+        {
+            modules.import $(1) : $(2) : $(3) ;
+        }
+        modules.poke project : .current-project : $(saved) ;
+    }
+
+    rule project ( id ? : options * : * )
+    {
+        import errors ;
+        import path ;
+        import project ;
+
+        local caller = [ CALLER_MODULE ] ;
+        local attributes = [ project.attributes $(caller) ] ;
+        if $(id)
+        {
+           $(attributes).set id : $(id) ;
+        }
+
+        local explicit-build-dir ;
+
+        for n in 2 3 4 5 6 7 8 9
+        {
+            local option = $($(n)) ;
+            if $(option)
+            {
+                $(attributes).set $(option[1]) : $(option[2-]) ;
+            }
+            if $(option[1]) = "build-dir"
+            {
+                explicit-build-dir = [ path.make $(option[2-]) ] ;
+            }
+        }
+
+        # If '--build-dir' is specified, change the build dir for the project.
+        local global-build-dir =
+            [ modules.peek project : .global-build-dir ] ;
+
+        if $(global-build-dir)
+        {
+            local location = [ $(attributes).get location ] ;
+            # Project with an empty location is a 'standalone' project such as
+            # user-config or qt. It has no build dir. If we try to set build dir
+            # for user-config, we shall then try to inherit it, with either
+            # weird or wrong consequences.
+            if $(location) && $(location) = [ $(attributes).get project-root ]
+            {
+                # Re-read the project id, since it might have been changed in
+                # the project's attributes.
+                id = [ $(attributes).get id ] ;
+                # This is Jamroot.
+                if $(id)
+                {
+                    if $(explicit-build-dir) &&
+                        [ path.is-rooted $(explicit-build-dir) ]
+                    {
+                        errors.user-error Absolute directory specified via
+                            'build-dir' project attribute : Do not know how to
+                            combine that with the --build-dir option. ;
+                    }
+                    # Strip the leading slash from id.
+                    local rid = [ MATCH /(.*) : $(id) ] ;
+                    local p = [ path.join
+                        $(global-build-dir) $(rid) $(explicit-build-dir) ] ;
+
+                    $(attributes).set build-dir : $(p) : exact ;
+                }
+            }
+            else
+            {
+                # Not Jamroot.
+                if $(explicit-build-dir)
+                {
+                    errors.user-error When --build-dir is specified, the
+                        'build-dir' project : attribute is allowed only for
+                        top-level 'project' invocations ;
+                }
+            }
+        }
+    }
+
+    # Declare and set a project global constant. Project global constants are
+    # normal variables but should not be changed. They are applied to every
+    # child Jamfile.
+    #
+    rule constant (
+        name  # Variable name of the constant.
+        : value +  # Value of the constant.
+    )
+    {
+        import project ;
+        local caller = [ CALLER_MODULE ] ;
+        local p = [ project.target $(caller) ] ;
+        $(p).add-constant $(name) : $(value) ;
+    }
+
+    # Declare and set a project global constant, whose value is a path. The path
+    # is adjusted to be relative to the invocation directory. The given value
+    # path is taken to be either absolute, or relative to this project root.
+    #
+    rule path-constant (
+        name  # Variable name of the constant.
+        : value +  # Value of the constant.
+        )
+    {
+        import project ;
+        local caller = [ CALLER_MODULE ] ;
+        local p = [ project.target $(caller) ] ;
+        $(p).add-constant $(name) : $(value) : path ;
+    }
+
+    rule use-project ( id : where )
+    {
+        import modules ;
+        # See comment in 'load' for explanation.
+        local caller = [ CALLER_MODULE ] ;
+        modules.poke $(caller) : .used-projects :
+            [ modules.peek $(caller) : .used-projects ]
+            $(id) $(where) ;
+    }
+
+    rule build-project ( dir )
+    {
+        import project ;
+        local caller = [ CALLER_MODULE ] ;
+        local attributes = [ project.attributes $(caller) ] ;
+
+        local now = [ $(attributes).get projects-to-build ] ;
+        $(attributes).set projects-to-build : $(now) $(dir) ;
+    }
+
+    rule explicit ( target-names * )
+    {
+        import project ;
+        # If 'explicit' is used in a helper rule defined in Jamroot and
+        # inherited by children, then most of the time we want 'explicit' to
+        # operate on the Jamfile where the helper rule is invoked.
+        local t = [ project.current ] ;
+        for local n in $(target-names)
+        {
+            $(t).mark-target-as-explicit $(n) ;
+        }
+    }
+
+    rule always ( target-names * )
+    {
+        import project ;
+        local t = [ project.current ] ;
+        for local n in $(target-names)
+        {
+            $(t).mark-target-as-always $(n) ;
+        }        
+    }
+    
+    rule glob ( wildcards + : excludes * )
+    {
+        import project ;
+        return [ project.glob-internal [ project.current ] : $(wildcards) :
+            $(excludes) : glob ] ;
+    }
+
+    rule glob-tree ( wildcards + : excludes * )
+    {
+        import project ;
+
+        if $(wildcards:D) || $(excludes:D)
+        {
+            errors.user-error The patterns to 'glob-tree' may not include
+                directory ;
+        }
+        return [ project.glob-internal [ project.current ] : $(wildcards) :
+            $(excludes) : glob-tree ] ;
+    }
+
+    # Calculates conditional requirements for multiple requirements at once.
+    # This is a shorthand to reduce duplication and to keep an inline
+    # declarative syntax. For example:
+    #
+    #   lib x : x.cpp : [ conditional <toolset>gcc <variant>debug :
+    #       <define>DEBUG_EXCEPTION <define>DEBUG_TRACE ] ;
+    #
+    rule conditional ( condition + : requirements * )
+    {
+        local condition = $(condition:J=,) ;
+        if [ MATCH (:) : $(condition) ]
+        {
+            return $(condition)$(requirements) ;
+        }
+        else
+        {
+            return $(condition):$(requirements) ;
+        }
+    }
+    
+    rule option ( name : value )
+    {
+        if $(__name__) != site-config && $(__name__) != user-config && $(__name__) != project-config
+        {
+            import errors ;
+            errors.error "The 'option' rule may be used only in site-config or user-config" ;
+        }        
+        import option ;
+        option.set $(name) : $(value) ;
+    }    
+}
diff --git a/jam-files/boost-build/build/project.py b/jam-files/boost-build/build/project.py
new file mode 100644
index 00000000..1e1e16fa
--- /dev/null
+++ b/jam-files/boost-build/build/project.py
@@ -0,0 +1,1120 @@
+# Status: ported.
+# Base revision: 64488
+
+# Copyright 2002, 2003 Dave Abrahams 
+# Copyright 2002, 2005, 2006 Rene Rivera 
+# Copyright 2002, 2003, 2004, 2005, 2006 Vladimir Prus 
+# Distributed under the Boost Software License, Version 1.0. 
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) 
+
+#  Implements project representation and loading.
+#   Each project is represented by 
+#   - a module where all the Jamfile content live. 
+#   - an instance of 'project-attributes' class.
+#     (given module name, can be obtained by 'attributes' rule)
+#   - an instance of 'project-target' class (from targets.jam)
+#     (given a module name, can be obtained by 'target' rule)
+#
+#  Typically, projects are created as result of loading Jamfile, which is
+#  do by rules 'load' and 'initialize', below. First, module for Jamfile
+#  is loaded and new project-attributes instance is created. Some rules
+#  necessary for project are added to the module (see 'project-rules' module)
+#  at the bottom of this file.
+#  Default project attributes are set (inheriting attributes of parent project, if
+#  it exists). After that, Jamfile is read. It can declare its own attributes,
+#  via 'project' rule, which will be combined with already set attributes.
+#
+#
+#  The 'project' rule can also declare project id, which will be associated with 
+#  the project module.
+#
+#  There can also be 'standalone' projects. They are created by calling 'initialize'
+#  on arbitrary module, and not specifying location. After the call, the module can
+#  call 'project' rule, declare main target and behave as regular projects. However,
+#  since it's not associated with any location, it's better declare only prebuilt 
+#  targets.
+#
+#  The list of all loaded Jamfile is stored in variable .project-locations. It's possible
+#  to obtain module name for a location using 'module-name' rule. The standalone projects
+#  are not recorded, the only way to use them is by project id.
+
+import b2.util.path
+from b2.build import property_set, property
+from b2.build.errors import ExceptionWithUserContext
+import b2.build.targets
+
+import bjam
+
+import re
+import sys
+import os
+import string
+import imp
+import traceback
+import b2.util.option as option
+
+from b2.util import record_jam_to_value_mapping, qualify_jam_action
+
+class ProjectRegistry:
+
+    def __init__(self, manager, global_build_dir):
+        self.manager = manager
+        self.global_build_dir = global_build_dir
+        self.project_rules_ = ProjectRules(self)
+
+        # The target corresponding to the project being loaded now
+        self.current_project = None
+        
+        # The set of names of loaded project modules
+        self.jamfile_modules = {}
+
+        # Mapping from location to module name
+        self.location2module = {}
+
+        # Mapping from project id to project module
+        self.id2module = {}
+
+        # Map from Jamfile directory to parent Jamfile/Jamroot
+        # location.
+        self.dir2parent_jamfile = {}
+
+        # Map from directory to the name of Jamfile in
+        # that directory (or None).
+        self.dir2jamfile = {}
+
+        # Map from project module to attributes object.
+        self.module2attributes = {}
+
+        # Map from project module to target for the project
+        self.module2target = {}
+
+        # Map from names to Python modules, for modules loaded
+        # via 'using' and 'import' rules in Jamfiles.
+        self.loaded_tool_modules_ = {}
+
+        self.loaded_tool_module_path_ = {}
+
+        # Map from project target to the list of
+        # (id,location) pairs corresponding to all 'use-project'
+        # invocations.
+        # TODO: should not have a global map, keep this
+        # in ProjectTarget.
+        self.used_projects = {}
+
+        self.saved_current_project = []
+
+        self.JAMROOT = self.manager.getenv("JAMROOT");
+
+        # Note the use of character groups, as opposed to listing
+        # 'Jamroot' and 'jamroot'. With the latter, we'd get duplicate
+        # matches on windows and would have to eliminate duplicates.
+        if not self.JAMROOT:
+            self.JAMROOT = ["project-root.jam", "[Jj]amroot", "[Jj]amroot.jam"]
+
+        # Default patterns to search for the Jamfiles to use for build
+        # declarations.
+        self.JAMFILE = self.manager.getenv("JAMFILE")
+
+        if not self.JAMFILE:
+            self.JAMFILE = ["[Bb]uild.jam", "[Jj]amfile.v2", "[Jj]amfile",
+                            "[Jj]amfile.jam"]
+
+
+    def load (self, jamfile_location):
+        """Loads jamfile at the given location. After loading, project global
+        file and jamfile needed by the loaded one will be loaded recursively.
+        If the jamfile at that location is loaded already, does nothing.
+        Returns the project module for the Jamfile."""
+
+        absolute = os.path.join(os.getcwd(), jamfile_location)
+        absolute = os.path.normpath(absolute)
+        jamfile_location = b2.util.path.relpath(os.getcwd(), absolute)
+
+        if "--debug-loading" in self.manager.argv():
+            print "Loading Jamfile at '%s'" % jamfile_location
+
+            
+        mname = self.module_name(jamfile_location)
+        # If Jamfile is already loaded, don't try again.
+        if not mname in self.jamfile_modules:
+        
+            self.load_jamfile(jamfile_location, mname)
+                
+            # We want to make sure that child project are loaded only
+            # after parent projects. In particular, because parent projects
+            # define attributes whch are inherited by children, and we don't
+            # want children to be loaded before parents has defined everything.
+            #
+            # While "build-project" and "use-project" can potentially refer
+            # to child projects from parent projects, we don't immediately
+            # load child projects when seing those attributes. Instead,
+            # we record the minimal information that will be used only later.
+            
+            self.load_used_projects(mname)
+             
+        return mname
+
+    def load_used_projects(self, module_name):
+        # local used = [ modules.peek $(module-name) : .used-projects ] ;
+        used = self.used_projects[module_name]
+    
+        location = self.attribute(module_name, "location")
+        for u in used:
+            id = u[0]
+            where = u[1]
+
+            self.use(id, os.path.join(location, where))
+
+    def load_parent(self, location):
+        """Loads parent of Jamfile at 'location'.
+        Issues an error if nothing is found."""
+
+        found = b2.util.path.glob_in_parents(
+            location, self.JAMROOT + self.JAMFILE) 
+
+        if not found:
+            print "error: Could not find parent for project at '%s'" % location
+            print "error: Did not find Jamfile or project-root.jam in any parent directory."
+            sys.exit(1)
+    
+        return self.load(os.path.dirname(found[0]))
+
+    def act_as_jamfile(self, module, location):
+        """Makes the specified 'module' act as if it were a regularly loaded Jamfile 
+        at 'location'. If Jamfile is already located for that location, it's an 
+        error."""
+
+        if self.module_name(location) in self.jamfile_modules:
+            self.manager.errors()(
+                "Jamfile was already loaded for '%s'" % location)
+    
+        # Set up non-default mapping from location to module.
+        self.location2module[location] = module
+    
+        # Add the location to the list of project locations
+        # so that we don't try to load Jamfile in future
+        self.jamfile_modules.append(location)
+    
+        self.initialize(module, location)
+
+    def find(self, name, current_location):
+        """Given 'name' which can be project-id or plain directory name,
+        return project module corresponding to that id or directory.
+        Returns nothing of project is not found."""
+
+        project_module = None
+
+        # Try interpreting name as project id.
+        if name[0] == '/':
+            project_module = self.id2module.get(name)
+
+        if not project_module:
+            location = os.path.join(current_location, name)
+            # If no project is registered for the given location, try to
+            # load it. First see if we have Jamfile. If not we might have project
+            # root, willing to act as Jamfile. In that case, project-root
+            # must be placed in the directory referred by id.
+        
+            project_module = self.module_name(location)
+            if not project_module in self.jamfile_modules:
+                if b2.util.path.glob([location], self.JAMROOT + self.JAMFILE):
+                    project_module = self.load(location)
+                else:
+                    project_module = None
+
+        return project_module
+
+    def module_name(self, jamfile_location):
+        """Returns the name of module corresponding to 'jamfile-location'.
+        If no module corresponds to location yet, associates default
+        module name with that location."""
+        module = self.location2module.get(jamfile_location)
+        if not module:
+            # Root the path, so that locations are always umbiguious.
+            # Without this, we can't decide if '../../exe/program1' and '.'
+            # are the same paths, or not.
+            jamfile_location = os.path.realpath(
+                os.path.join(os.getcwd(), jamfile_location))
+            module = "Jamfile<%s>" % jamfile_location
+            self.location2module[jamfile_location] = module
+        return module
+
+    def find_jamfile (self, dir, parent_root=0, no_errors=0):
+        """Find the Jamfile at the given location. This returns the
+        exact names of all the Jamfiles in the given directory. The optional
+        parent-root argument causes this to search not the given directory
+        but the ones above it up to the directory given in it."""
+        
+        # Glob for all the possible Jamfiles according to the match pattern.
+        #
+        jamfile_glob = None
+        if parent_root:
+            parent = self.dir2parent_jamfile.get(dir)
+            if not parent:
+                parent = b2.util.path.glob_in_parents(dir,
+                                                               self.JAMFILE)
+                self.dir2parent_jamfile[dir] = parent
+            jamfile_glob = parent
+        else:
+            jamfile = self.dir2jamfile.get(dir)
+            if not jamfile:
+                jamfile = b2.util.path.glob([dir], self.JAMFILE)
+                self.dir2jamfile[dir] = jamfile
+            jamfile_glob = jamfile
+
+        if len(jamfile_glob) > 1:
+            # Multiple Jamfiles found in the same place. Warn about this.
+            # And ensure we use only one of them.
+            # As a temporary convenience measure, if there's Jamfile.v2 amount
+            # found files, suppress the warning and use it.
+            #
+            pattern = "(.*[Jj]amfile\\.v2)|(.*[Bb]uild\\.jam)"
+            v2_jamfiles = [x for x in jamfile_glob if re.match(pattern, x)]
+            if len(v2_jamfiles) == 1:
+                jamfile_glob = v2_jamfiles
+            else:
+                print """warning: Found multiple Jamfiles at '%s'!""" % (dir)
+                for j in jamfile_glob:
+                    print "    -", j
+                print "Loading the first one"
+    
+        # Could not find it, error.
+        if not no_errors and not jamfile_glob:
+            self.manager.errors()(
+                """Unable to load Jamfile.
+Could not find a Jamfile in directory '%s'
+Attempted to find it with pattern '%s'.
+Please consult the documentation at 'http://boost.org/boost-build2'."""
+                % (dir, string.join(self.JAMFILE)))
+
+        if jamfile_glob:
+            return jamfile_glob[0]
+    
+    def load_jamfile(self, dir, jamfile_module):
+        """Load a Jamfile at the given directory. Returns nothing.
+        Will attempt to load the file as indicated by the JAMFILE patterns.
+        Effect of calling this rule twice with the same 'dir' is underfined."""
+      
+        # See if the Jamfile is where it should be.
+        is_jamroot = False
+        jamfile_to_load = b2.util.path.glob([dir], self.JAMROOT)
+        if not jamfile_to_load:
+            jamfile_to_load = self.find_jamfile(dir)
+        else:
+            if len(jamfile_to_load) > 1:
+                get_manager().errors()("Multiple Jamfiles found at '%s'\n" +\
+                                       "Filenames are: %s"
+                                       % (dir, [os.path.basename(j) for j in jamfile_to_load]))
+
+            is_jamroot = True
+            jamfile_to_load = jamfile_to_load[0]
+
+        dir = os.path.dirname(jamfile_to_load)
+        if not dir:
+            dir = "."
+
+        self.used_projects[jamfile_module] = []
+        
+        # Now load the Jamfile in it's own context. 
+        # The call to 'initialize' may load parent Jamfile, which might have
+        # 'use-project' statement that causes a second attempt to load the
+        # same project we're loading now.  Checking inside .jamfile-modules
+        # prevents that second attempt from messing up.
+        if not jamfile_module in self.jamfile_modules:
+            self.jamfile_modules[jamfile_module] = True
+
+            # Initialize the jamfile module before loading.
+            #    
+            self.initialize(jamfile_module, dir, os.path.basename(jamfile_to_load))
+
+            saved_project = self.current_project
+
+            bjam.call("load", jamfile_module, jamfile_to_load)
+            basename = os.path.basename(jamfile_to_load)
+
+            if is_jamroot:
+                jamfile = self.find_jamfile(dir, no_errors=True)
+                if jamfile:
+                    bjam.call("load", jamfile_module, jamfile)
+                                    
+        # Now do some checks
+        if self.current_project != saved_project:
+            self.manager.errors()(
+"""The value of the .current-project variable
+has magically changed after loading a Jamfile.
+This means some of the targets might be defined a the wrong project.
+after loading %s
+expected value %s
+actual value %s""" % (jamfile_module, saved_project, self.current_project))
+          
+        if self.global_build_dir:
+            id = self.attributeDefault(jamfile_module, "id", None)
+            project_root = self.attribute(jamfile_module, "project-root")
+            location = self.attribute(jamfile_module, "location")
+
+            if location and project_root == dir:
+                # This is Jamroot
+                if not id:
+                    # FIXME: go via errors module, so that contexts are
+                    # shown?
+                    print "warning: the --build-dir option was specified"
+                    print "warning: but Jamroot at '%s'" % dir
+                    print "warning: specified no project id"
+                    print "warning: the --build-dir option will be ignored"
+
+
+    def load_standalone(self, jamfile_module, file):
+        """Loads 'file' as standalone project that has no location
+        associated with it.  This is mostly useful for user-config.jam,
+        which should be able to define targets, but although it has
+        some location in filesystem, we don't want any build to
+        happen in user's HOME, for example.
+
+        The caller is required to never call this method twice on
+        the same file.
+        """
+
+        self.used_projects[jamfile_module] = []
+        bjam.call("load", jamfile_module, file)
+        self.load_used_projects(jamfile_module)
+        
+    def is_jamroot(self, basename):
+        match = [ pat for pat in self.JAMROOT if re.match(pat, basename)]
+        if match:
+            return 1
+        else:
+            return 0
+
+    def initialize(self, module_name, location=None, basename=None):
+        """Initialize the module for a project.
+        
+        module-name is the name of the project module.
+        location is the location (directory) of the project to initialize.
+                 If not specified, stanalone project will be initialized
+        """
+
+        if "--debug-loading" in self.manager.argv():
+            print "Initializing project '%s'" % module_name
+
+        # TODO: need to consider if standalone projects can do anything but defining
+        # prebuilt targets. If so, we need to give more sensible "location", so that
+        # source paths are correct.
+        if not location:
+            location = ""
+
+        attributes = ProjectAttributes(self.manager, location, module_name)
+        self.module2attributes[module_name] = attributes
+
+        python_standalone = False
+        if location:
+            attributes.set("source-location", [location], exact=1)
+        elif not module_name in ["test-config", "site-config", "user-config", "project-config"]:
+            # This is a standalone project with known location. Set source location
+            # so that it can declare targets. This is intended so that you can put
+            # a .jam file in your sources and use it via 'using'. Standard modules
+            # (in 'tools' subdir) may not assume source dir is set.
+            module = sys.modules[module_name]          
+            attributes.set("source-location", self.loaded_tool_module_path_[module_name], exact=1)
+            python_standalone = True
+
+        attributes.set("requirements", property_set.empty(), exact=True)
+        attributes.set("usage-requirements", property_set.empty(), exact=True)
+        attributes.set("default-build", property_set.empty(), exact=True)
+        attributes.set("projects-to-build", [], exact=True)
+        attributes.set("project-root", None, exact=True)
+        attributes.set("build-dir", None, exact=True)
+        
+        self.project_rules_.init_project(module_name, python_standalone)
+
+        jamroot = False
+
+        parent_module = None;
+        if module_name == "test-config":
+            # No parent
+            pass
+        elif module_name == "site-config":
+            parent_module = "test-config"
+        elif module_name == "user-config":
+            parent_module = "site-config"
+        elif module_name == "project-config":
+            parent_module = "user-config"
+        elif location and not self.is_jamroot(basename):
+            # We search for parent/project-root only if jamfile was specified 
+            # --- i.e
+            # if the project is not standalone.
+            parent_module = self.load_parent(location)
+        else:
+            # It's either jamroot, or standalone project.
+            # If it's jamroot, inherit from user-config.
+            if location:
+                # If project-config module exist, inherit from it.
+                if self.module2attributes.has_key("project-config"):
+                    parent_module = "project-config"
+                else:
+                    parent_module = "user-config" ;
+                
+                jamroot = True ;
+                
+        if parent_module:
+            self.inherit_attributes(module_name, parent_module)
+            attributes.set("parent-module", parent_module, exact=1)
+
+        if jamroot:
+            attributes.set("project-root", location, exact=1)
+                                
+        parent = None
+        if parent_module:
+            parent = self.target(parent_module)
+
+        if not self.module2target.has_key(module_name):
+            target = b2.build.targets.ProjectTarget(self.manager,
+                module_name, module_name, parent,
+                self.attribute(module_name,"requirements"),
+                # FIXME: why we need to pass this? It's not
+                # passed in jam code.
+                self.attribute(module_name, "default-build"))
+            self.module2target[module_name] = target
+
+        self.current_project = self.target(module_name)
+
+    def inherit_attributes(self, project_module, parent_module):
+        """Make 'project-module' inherit attributes of project
+        root and parent module."""
+
+        attributes = self.module2attributes[project_module]
+        pattributes = self.module2attributes[parent_module]
+        
+        # Parent module might be locationless user-config.
+        # FIXME:
+        #if [ modules.binding $(parent-module) ]
+        #{        
+        #    $(attributes).set parent : [ path.parent 
+        #                                 [ path.make [ modules.binding $(parent-module) ] ] ] ;
+        #    }
+        
+        attributes.set("project-root", pattributes.get("project-root"), exact=True)
+        attributes.set("default-build", pattributes.get("default-build"), exact=True)
+        attributes.set("requirements", pattributes.get("requirements"), exact=True)
+        attributes.set("usage-requirements",
+                       pattributes.get("usage-requirements"), exact=1)
+
+        parent_build_dir = pattributes.get("build-dir")
+        
+        if parent_build_dir:
+        # Have to compute relative path from parent dir to our dir
+        # Convert both paths to absolute, since we cannot
+        # find relative path from ".." to "."
+
+             location = attributes.get("location")
+             parent_location = pattributes.get("location")
+
+             our_dir = os.path.join(os.getcwd(), location)
+             parent_dir = os.path.join(os.getcwd(), parent_location)
+
+             build_dir = os.path.join(parent_build_dir,
+                                      os.path.relpath(our_dir, parent_dir))
+             attributes.set("build-dir", build_dir, exact=True)
+
+    def register_id(self, id, module):
+        """Associate the given id with the given project module."""
+        self.id2module[id] = module
+
+    def current(self):
+        """Returns the project which is currently being loaded."""
+        return self.current_project
+
+    def set_current(self, c):
+        self.current_project = c
+
+    def push_current(self, project):
+        """Temporary changes the current project to 'project'. Should
+        be followed by 'pop-current'."""
+        self.saved_current_project.append(self.current_project)
+        self.current_project = project
+
+    def pop_current(self):
+        self.current_project = self.saved_current_project[-1]
+        del self.saved_current_project[-1]
+
+    def attributes(self, project):
+        """Returns the project-attribute instance for the
+        specified jamfile module."""
+        return self.module2attributes[project]
+
+    def attribute(self, project, attribute):
+        """Returns the value of the specified attribute in the
+        specified jamfile module."""
+        return self.module2attributes[project].get(attribute)
+        try:    
+            return self.module2attributes[project].get(attribute)
+        except:
+            raise BaseException("No attribute '%s' for project" % (attribute, project))
+
+    def attributeDefault(self, project, attribute, default):
+        """Returns the value of the specified attribute in the
+        specified jamfile module."""
+        return self.module2attributes[project].getDefault(attribute, default)
+
+    def target(self, project_module):
+        """Returns the project target corresponding to the 'project-module'."""
+        if not self.module2target.has_key(project_module):
+            self.module2target[project_module] = \
+                b2.build.targets.ProjectTarget(project_module, project_module,
+                              self.attribute(project_module, "requirements"))
+        
+        return self.module2target[project_module]
+
+    def use(self, id, location):
+        # Use/load a project.
+        saved_project = self.current_project
+        project_module = self.load(location)
+        declared_id = self.attributeDefault(project_module, "id", "")
+
+        if not declared_id or declared_id != id:
+            # The project at 'location' either have no id or
+            # that id is not equal to the 'id' parameter.
+            if self.id2module.has_key(id) and self.id2module[id] != project_module:
+                self.manager.errors()(
+"""Attempt to redeclare already existing project id '%s' at location '%s'""" % (id, location))
+            self.id2module[id] = project_module
+
+        self.current_module = saved_project
+
+    def add_rule(self, name, callable):
+        """Makes rule 'name' available to all subsequently loaded Jamfiles.
+
+        Calling that rule wil relay to 'callable'."""
+        self.project_rules_.add_rule(name, callable)
+
+    def project_rules(self):
+        return self.project_rules_
+
+    def glob_internal(self, project, wildcards, excludes, rule_name):
+        location = project.get("source-location")[0]
+
+        result = []
+        callable = b2.util.path.__dict__[rule_name]
+        
+        paths = callable([location], wildcards, excludes)
+        has_dir = 0
+        for w in wildcards:
+            if os.path.dirname(w):
+                has_dir = 1
+                break
+
+        if has_dir or rule_name != "glob":
+            result = []
+            # The paths we've found are relative to current directory,
+            # but the names specified in sources list are assumed to
+            # be relative to source directory of the corresponding
+            # prject. Either translate them or make absolute.
+
+            for p in paths:
+                rel = os.path.relpath(p, location)
+                # If the path is below source location, use relative path.
+                if not ".." in rel:
+                    result.append(rel)
+                else:
+                    # Otherwise, use full path just to avoid any ambiguities.
+                    result.append(os.path.abspath(p))
+                    
+        else:
+            # There were not directory in wildcard, so the files are all
+            # in the source directory of the project. Just drop the
+            # directory, instead of making paths absolute.
+            result = [os.path.basename(p) for p in paths]
+            
+        return result
+
+    def load_module(self, name, extra_path=None):
+        """Load a Python module that should be useable from Jamfiles.
+
+        There are generally two types of modules Jamfiles might want to
+        use:
+        - Core Boost.Build. Those are imported using plain names, e.g.
+        'toolset', so this function checks if we have module named
+        b2.package.module already.
+        - Python modules in the same directory as Jamfile. We don't
+        want to even temporary add Jamfile's directory to sys.path,
+        since then we might get naming conflicts between standard
+        Python modules and those.
+        """
+
+        # See if we loaded module of this name already
+        existing = self.loaded_tool_modules_.get(name)
+        if existing:
+            return existing
+
+        # See if we have a module b2.whatever.<name>, where <name>
+        # is what is passed to this function
+        modules = sys.modules
+        for class_name in modules:
+            parts = class_name.split('.')
+            if name is class_name or parts[0] == "b2" \
+            and parts[-1] == name.replace("-", "_"):
+                module = modules[class_name]
+                self.loaded_tool_modules_[name] = module
+                return module
+
+        # Lookup a module in BOOST_BUILD_PATH
+        path = extra_path
+        if not path:
+            path = []
+        path.extend(self.manager.boost_build_path())
+        location = None
+        for p in path:
+            l = os.path.join(p, name + ".py")
+            if os.path.exists(l):
+                location = l
+                break
+
+        if not location:
+            self.manager.errors()("Cannot find module '%s'" % name)
+
+        mname = name + "__for_jamfile"
+        file = open(location)
+        try:            
+            # TODO: this means we'll never make use of .pyc module,
+            # which might be a problem, or not.
+            self.loaded_tool_module_path_[mname] = location
+            module = imp.load_module(mname, file, os.path.basename(location),
+                                     (".py", "r", imp.PY_SOURCE))
+            self.loaded_tool_modules_[name] = module
+            return module
+        finally:
+            file.close()
+        
+
+
+# FIXME:
+# Defines a Boost.Build extension project. Such extensions usually
+# contain library targets and features that can be used by many people.
+# Even though extensions are really projects, they can be initialize as
+# a module would be with the "using" (project.project-rules.using)
+# mechanism.
+#rule extension ( id : options * : * )
+#{
+#    # The caller is a standalone module for the extension.
+#    local mod = [ CALLER_MODULE ] ;
+#    
+#    # We need to do the rest within the extension module.
+#    module $(mod)
+#    {
+#        import path ;
+#        
+#        # Find the root project.
+#        local root-project = [ project.current ] ;
+#        root-project = [ $(root-project).project-module ] ;
+#        while
+#            [ project.attribute $(root-project) parent-module ] &&
+#            [ project.attribute $(root-project) parent-module ] != user-config
+#        {
+#            root-project = [ project.attribute $(root-project) parent-module ] ;
+#        }
+#        
+#        # Create the project data, and bring in the project rules
+#        # into the module.
+#        project.initialize $(__name__) :
+#            [ path.join [ project.attribute $(root-project) location ] ext $(1:L) ] ;
+#        
+#        # Create the project itself, i.e. the attributes.
+#        # All extensions are created in the "/ext" project space.
+#        project /ext/$(1) : $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ;
+#        local attributes = [ project.attributes $(__name__) ] ;
+#        
+#        # Inherit from the root project of whomever is defining us.
+#        project.inherit-attributes $(__name__) : $(root-project) ;
+#        $(attributes).set parent-module : $(root-project) : exact ;
+#    }
+#}
+        
+
+class ProjectAttributes:
+    """Class keeping all the attributes of a project.
+
+    The standard attributes are 'id', "location", "project-root", "parent"
+    "requirements", "default-build", "source-location" and "projects-to-build".
+    """
+        
+    def __init__(self, manager, location, project_module):
+        self.manager = manager
+        self.location = location
+        self.project_module = project_module
+        self.attributes = {}
+        self.usage_requirements = None
+        
+    def set(self, attribute, specification, exact=False):
+        """Set the named attribute from the specification given by the user.
+        The value actually set may be different."""
+
+        if exact:
+            self.__dict__[attribute] = specification
+            
+        elif attribute == "requirements":
+            self.requirements = property_set.refine_from_user_input(
+                self.requirements, specification,
+                self.project_module, self.location)
+            
+        elif attribute == "usage-requirements":
+            unconditional = []
+            for p in specification:
+                split = property.split_conditional(p)
+                if split:
+                    unconditional.append(split[1])
+                else:
+                    unconditional.append(p)
+
+            non_free = property.remove("free", unconditional)
+            if non_free:                
+                get_manager().errors()("usage-requirements %s have non-free properties %s" \
+                                       % (specification, non_free))
+
+            t = property.translate_paths(
+                    property.create_from_strings(specification, allow_condition=True),
+                    self.location)
+
+            existing = self.__dict__.get("usage-requirements")
+            if existing:
+                new = property_set.create(existing.all() +  t)
+            else:
+                new = property_set.create(t)
+            self.__dict__["usage-requirements"] = new
+
+                
+        elif attribute == "default-build":
+            self.__dict__["default-build"] = property_set.create(specification)
+            
+        elif attribute == "source-location":
+            source_location = []
+            for path in specification:
+                source_location.append(os.path.join(self.location, path))
+            self.__dict__["source-location"] = source_location
+                
+        elif attribute == "build-dir":
+            self.__dict__["build-dir"] = os.path.join(self.location, specification[0])
+
+        elif attribute == "id":
+            id = specification[0]
+            if id[0] != '/':
+                id = "/" + id
+            self.manager.projects().register_id(id, self.project_module)
+            self.__dict__["id"] = id
+                
+        elif not attribute in ["default-build", "location",
+                               "source-location", "parent",
+                               "projects-to-build", "project-root"]:
+            self.manager.errors()(
+"""Invalid project attribute '%s' specified
+for project at '%s'""" % (attribute, self.location))
+        else:
+            self.__dict__[attribute] = specification
+
+    def get(self, attribute):
+        return self.__dict__[attribute]
+
+    def getDefault(self, attribute, default):
+        return self.__dict__.get(attribute, default)
+
+    def dump(self):
+        """Prints the project attributes."""
+        id = self.get("id")
+        if not id:
+            id = "(none)"
+        else:
+            id = id[0]
+
+        parent = self.get("parent")
+        if not parent:
+            parent = "(none)"
+        else:
+            parent = parent[0]
+
+        print "'%s'" % id
+        print "Parent project:%s", parent
+        print "Requirements:%s", self.get("requirements")
+        print "Default build:%s", string.join(self.get("debuild-build"))
+        print "Source location:%s", string.join(self.get("source-location"))
+        print "Projects to build:%s", string.join(self.get("projects-to-build").sort());
+
+class ProjectRules:
+    """Class keeping all rules that are made available to Jamfile."""
+
+    def __init__(self, registry):
+        self.registry = registry
+        self.manager_ = registry.manager
+        self.rules = {}
+        self.local_names = [x for x in self.__class__.__dict__
+                            if x not in ["__init__", "init_project", "add_rule",
+                                         "error_reporting_wrapper", "add_rule_for_type", "reverse"]]
+        self.all_names_ = [x for x in self.local_names]
+
+    def _import_rule(self, bjam_module, name, callable):
+        if hasattr(callable, "bjam_signature"):
+            bjam.import_rule(bjam_module, name, self.make_wrapper(callable), callable.bjam_signature)
+        else:
+            bjam.import_rule(bjam_module, name, self.make_wrapper(callable))
+        
+
+    def add_rule_for_type(self, type):
+        rule_name = type.lower().replace("_", "-")
+
+        def xpto (name, sources = [], requirements = [], default_build = [], usage_requirements = []):
+            return self.manager_.targets().create_typed_target(
+                type, self.registry.current(), name[0], sources,
+                requirements, default_build, usage_requirements) 
+
+        self.add_rule(rule_name, xpto)
+    
+    def add_rule(self, name, callable):
+        self.rules[name] = callable
+        self.all_names_.append(name)
+
+        # Add new rule at global bjam scope. This might not be ideal,
+        # added because if a jamroot does 'import foo' where foo calls
+        # add_rule, we need to import new rule to jamroot scope, and
+        # I'm lazy to do this now.
+        self._import_rule("", name, callable)
+
+    def all_names(self):
+        return self.all_names_
+
+    def call_and_report_errors(self, callable, *args, **kw):
+        result = None
+        try:
+            self.manager_.errors().push_jamfile_context()
+            result = callable(*args, **kw)
+        except ExceptionWithUserContext, e:
+            e.report()
+        except Exception, e:
+            try:
+                self.manager_.errors().handle_stray_exception (e)
+            except ExceptionWithUserContext, e:
+                e.report()
+        finally:                
+            self.manager_.errors().pop_jamfile_context()
+
+        return result
+
+    def make_wrapper(self, callable):
+        """Given a free-standing function 'callable', return a new
+        callable that will call 'callable' and report all exceptins,
+        using 'call_and_report_errors'."""
+        def wrapper(*args, **kw):
+            return self.call_and_report_errors(callable, *args, **kw)
+        return wrapper
+
+    def init_project(self, project_module, python_standalone=False):
+
+        if python_standalone:
+            m = sys.modules[project_module]
+
+            for n in self.local_names:
+                if n != "import_":
+                    setattr(m, n, getattr(self, n))
+                            
+            for n in self.rules:
+                setattr(m, n, self.rules[n])
+
+            return
+                        
+        for n in self.local_names:            
+            # Using 'getattr' here gives us a bound method,
+            # while using self.__dict__[r] would give unbound one.
+            v = getattr(self, n)
+            if callable(v):
+                if n == "import_":
+                    n = "import"
+                else:
+                    n = string.replace(n, "_", "-")
+                    
+                self._import_rule(project_module, n, v)
+
+        for n in self.rules:
+            self._import_rule(project_module, n, self.rules[n])
+
+    def project(self, *args):
+
+        jamfile_module = self.registry.current().project_module()
+        attributes = self.registry.attributes(jamfile_module)
+        
+        id = None
+        if args and args[0]:
+            id = args[0][0]
+            args = args[1:]
+
+        if id:
+            attributes.set('id', [id])
+
+        explicit_build_dir = None
+        for a in args:
+            if a:
+                attributes.set(a[0], a[1:], exact=0)
+                if a[0] == "build-dir":
+                    explicit_build_dir = a[1]
+        
+        # If '--build-dir' is specified, change the build dir for the project.
+        if self.registry.global_build_dir:
+
+            location = attributes.get("location")
+            # Project with empty location is 'standalone' project, like
+            # user-config, or qt.  It has no build dir.
+            # If we try to set build dir for user-config, we'll then
+            # try to inherit it, with either weird, or wrong consequences.
+            if location and location == attributes.get("project-root"):
+                # Re-read the project id, since it might have been changed in
+                # the project's attributes.
+                id = attributes.get('id')
+
+                # This is Jamroot.
+                if id:
+                    if explicit_build_dir and os.path.isabs(explicit_build_dir):
+                        self.registry.manager.errors()(
+"""Absolute directory specified via 'build-dir' project attribute
+Don't know how to combine that with the --build-dir option.""")
+
+                    rid = id
+                    if rid[0] == '/':
+                        rid = rid[1:]
+                    
+                    p = os.path.join(self.registry.global_build_dir, rid)
+                    if explicit_build_dir:
+                        p = os.path.join(p, explicit_build_dir)
+                    attributes.set("build-dir", p, exact=1)
+            elif explicit_build_dir:
+                self.registry.manager.errors()(
+"""When --build-dir is specified, the 'build-dir'
+attribute is allowed only for top-level 'project' invocations""")
+
+    def constant(self, name, value):
+        """Declare and set a project global constant.
+        Project global constants are normal variables but should
+        not be changed. They are applied to every child Jamfile."""
+        m = "Jamfile</home/ghost/Work/Boost/boost-svn/tools/build/v2_python/python/tests/bjam/make>"
+        self.registry.current().add_constant(name[0], value)
+
+    def path_constant(self, name, value):
+        """Declare and set a project global constant, whose value is a path. The
+        path is adjusted to be relative to the invocation directory. The given
+        value path is taken to be either absolute, or relative to this project
+        root."""
+        if len(value) > 1:
+            self.registry.manager.error()("path constant should have one element")
+        self.registry.current().add_constant(name[0], value[0], path=1)
+
+    def use_project(self, id, where):
+        # See comment in 'load' for explanation why we record the
+        # parameters as opposed to loading the project now.
+        m = self.registry.current().project_module();
+        self.registry.used_projects[m].append((id[0], where[0]))
+        
+    def build_project(self, dir):
+        assert(isinstance(dir, list))
+        jamfile_module = self.registry.current().project_module()
+        attributes = self.registry.attributes(jamfile_module)
+        now = attributes.get("projects-to-build")
+        attributes.set("projects-to-build", now + dir, exact=True)
+
+    def explicit(self, target_names):
+        self.registry.current().mark_targets_as_explicit(target_names)
+
+    def always(self, target_names):
+        self.registry.current().mark_targets_as_alays(target_names)
+
+    def glob(self, wildcards, excludes=None):
+        return self.registry.glob_internal(self.registry.current(),
+                                           wildcards, excludes, "glob")
+
+    def glob_tree(self, wildcards, excludes=None):
+        bad = 0
+        for p in wildcards:
+            if os.path.dirname(p):
+                bad = 1
+
+        if excludes:
+            for p in excludes:
+                if os.path.dirname(p):
+                    bad = 1
+
+        if bad:
+            self.registry.manager.errors()(
+"The patterns to 'glob-tree' may not include directory")
+        return self.registry.glob_internal(self.registry.current(),
+                                           wildcards, excludes, "glob_tree")
+    
+
+    def using(self, toolset, *args):
+        # The module referred by 'using' can be placed in
+        # the same directory as Jamfile, and the user
+        # will expect the module to be found even though
+        # the directory is not in BOOST_BUILD_PATH.
+        # So temporary change the search path.
+        current = self.registry.current()
+        location = current.get('location')
+
+        m = self.registry.load_module(toolset[0], [location])
+        if not m.__dict__.has_key("init"):
+            self.registry.manager.errors()(
+                "Tool module '%s' does not define the 'init' method" % toolset[0])
+        m.init(*args)
+
+        # The above might have clobbered .current-project. Restore the correct
+        # value.
+        self.registry.set_current(current)
+
+    def import_(self, name, names_to_import=None, local_names=None):
+
+        name = name[0]
+        py_name = name
+        if py_name == "os":
+            py_name = "os_j"
+        jamfile_module = self.registry.current().project_module()
+        attributes = self.registry.attributes(jamfile_module)
+        location = attributes.get("location")
+
+        saved = self.registry.current()
+
+        m = self.registry.load_module(py_name, [location])
+
+        for f in m.__dict__:
+            v = m.__dict__[f]
+            f = f.replace("_", "-")
+            if callable(v):
+                qn = name + "." + f
+                self._import_rule(jamfile_module, qn, v)
+                record_jam_to_value_mapping(qualify_jam_action(qn, jamfile_module), v)
+
+
+        if names_to_import:
+            if not local_names:
+                local_names = names_to_import
+
+            if len(names_to_import) != len(local_names):
+                self.registry.manager.errors()(
+"""The number of names to import and local names do not match.""")
+
+            for n, l in zip(names_to_import, local_names):
+                self._import_rule(jamfile_module, l, m.__dict__[n])
+                
+        self.registry.set_current(saved)
+        
+    def conditional(self, condition, requirements):
+        """Calculates conditional requirements for multiple requirements
+        at once. This is a shorthand to be reduce duplication and to
+        keep an inline declarative syntax. For example:
+
+            lib x : x.cpp : [ conditional <toolset>gcc <variant>debug :
+                <define>DEBUG_EXCEPTION <define>DEBUG_TRACE ] ;
+        """
+
+        c = string.join(condition, ",")
+        if c.find(":") != -1:
+            return [c + r for r in requirements]
+        else:
+            return [c + ":" + r for r in requirements]
+
+    def option(self, name, value):
+        name = name[0]
+        if not name in ["site-config", "user-config", "project-config"]:
+            get_manager().errors()("The 'option' rule may be used only in site-config or user-config")
+
+        option.set(name, value[0])
diff --git a/jam-files/boost-build/build/property-set.jam b/jam-files/boost-build/build/property-set.jam
new file mode 100644
index 00000000..70fd90cd
--- /dev/null
+++ b/jam-files/boost-build/build/property-set.jam
@@ -0,0 +1,481 @@
+# Copyright 2003 Dave Abrahams
+# Copyright 2003, 2004, 2005, 2006 Vladimir Prus
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+import "class" : new ;
+import feature ;
+import path ;
+import project ;
+import property ;
+import sequence ;
+import set ;
+import option ;
+
+# Class for storing a set of properties.
+#
+#   There is 1<->1 correspondence between identity and value. No two instances
+# of the class are equal. To maintain this property, the 'property-set.create'
+# rule should be used to create new instances. Instances are immutable.
+#
+#   Each property is classified with regard to its effect on build results.
+# Incidental properties have no effect on build results, from Boost.Build's
+# point of view. Others are either free, or non-free and we refer to non-free
+# ones as 'base'. Each property belongs to exactly one of those categories.
+#
+#   It is possible to get a list of properties belonging to each category as
+# well as a list of properties with a specific attribute.
+#
+#   Several operations, like and refine and as-path are provided. They all use
+# caching whenever possible.
+#
+class property-set
+{
+    import errors ;
+    import feature ;
+    import path ;
+    import property ;
+    import property-set ;
+    import set ;
+    
+    rule __init__ ( raw-properties * )
+    {
+        self.raw = $(raw-properties) ;
+
+        for local p in $(raw-properties)
+        {
+            if ! $(p:G)
+            {
+                errors.error "Invalid property: '$(p)'" ;
+            }
+
+            local att = [ feature.attributes $(p:G) ] ;
+            # A feature can be both incidental and free, in which case we add it
+            # to incidental.
+            if incidental in $(att)
+            {
+                self.incidental += $(p) ;
+            }
+            else if free in $(att)
+            {
+                self.free += $(p) ;
+            }
+            else
+            {
+                self.base += $(p) ;
+            }
+
+            if dependency in $(att)
+            {
+                self.dependency += $(p) ;
+            }
+            else
+            {
+                self.non-dependency += $(p) ;
+            }
+
+            if [ MATCH (:) : $(p:G=) ]
+            {
+                self.conditional += $(p) ;
+            }
+            else
+            {
+                self.non-conditional += $(p) ;
+            }
+
+            if propagated in $(att)
+            {
+                self.propagated += $(p) ;
+            }
+            if link-incompatible in $(att)
+            {
+                self.link-incompatible += $(p) ;
+            }
+        }
+    }
+
+    # Returns Jam list of stored properties.
+    #
+    rule raw ( )
+    {
+        return $(self.raw) ;
+    }
+
+    rule str ( )
+    {
+        return "[" $(self.raw) "]" ;
+    }
+
+    # Returns properties that are neither incidental nor free.
+    #
+    rule base ( )
+    {
+        return $(self.base) ;
+    }
+
+    # Returns free properties which are not incidental.
+    #
+    rule free ( )
+    {
+        return $(self.free) ;
+    }
+
+    # Returns dependency properties.
+    #
+    rule dependency ( )
+    {
+        return $(self.dependency) ;
+    }
+
+    rule non-dependency ( )
+    {
+        return $(self.non-dependency) ;
+    }
+
+    rule conditional ( )
+    {
+        return $(self.conditional) ;
+    }
+
+    rule non-conditional ( )
+    {
+        return $(self.non-conditional) ;
+    }
+
+    # Returns incidental properties.
+    #
+    rule incidental ( )
+    {
+        return $(self.incidental) ;
+    }
+
+    rule refine ( ps )
+    {
+        if ! $(self.refined.$(ps))
+        {
+            local r = [ property.refine $(self.raw) : [ $(ps).raw ] ] ;
+            if $(r[1]) != "@error"
+            {
+                self.refined.$(ps) = [ property-set.create $(r) ] ;
+            }
+            else
+            {
+                self.refined.$(ps) = $(r) ;
+            }
+        }
+        return $(self.refined.$(ps)) ;
+    }
+
+    rule expand ( )
+    {
+        if ! $(self.expanded)
+        {
+            self.expanded = [ property-set.create [ feature.expand $(self.raw) ] ] ;
+        }
+        return $(self.expanded) ;
+    }
+
+    rule expand-composites ( )
+    {
+        if ! $(self.composites)
+        {
+            self.composites = [ property-set.create
+                [ feature.expand-composites $(self.raw) ] ] ;
+        }
+        return $(self.composites) ;
+    }
+
+    rule evaluate-conditionals ( context ? )
+    {
+        context ?= $(__name__) ;
+        if ! $(self.evaluated.$(context))
+        {
+            self.evaluated.$(context) = [ property-set.create
+                [ property.evaluate-conditionals-in-context $(self.raw) : [ $(context).raw ] ] ] ;
+        }
+        return $(self.evaluated.$(context)) ;
+    }
+
+    rule propagated ( )
+    {
+        if ! $(self.propagated-ps)
+        {
+            self.propagated-ps = [ property-set.create $(self.propagated) ] ;
+        }
+        return $(self.propagated-ps) ;
+    }
+
+    rule link-incompatible ( )
+    {
+        if ! $(self.link-incompatible-ps)
+        {
+            self.link-incompatible-ps =
+              [ property-set.create $(self.link-incompatible) ] ;
+        }
+        return $(self.link-incompatible-ps) ;
+    }
+
+    rule run-actions ( )
+    {
+        if ! $(self.run)
+        {
+            self.run = [ property-set.create [ feature.run-actions $(self.raw) ] ] ;
+        }
+        return $(self.run) ;
+    }
+
+    rule add-defaults ( )
+    {
+        if ! $(self.defaults)
+        {
+            self.defaults = [ property-set.create
+                [ feature.add-defaults $(self.raw) ] ] ;
+        }
+        return $(self.defaults) ;
+    }
+
+    rule as-path ( )
+    {
+        if ! $(self.as-path)
+        {
+            self.as-path = [ property.as-path $(self.base) ] ;
+        }
+        return $(self.as-path) ;
+    }
+
+    # Computes the path to be used for a target with the given properties.
+    # Returns a list of
+    #   - the computed path
+    #   - if the path is relative to the build directory, a value of 'true'.
+    #
+    rule target-path ( )
+    {
+        if ! $(self.target-path)
+        {
+            # The <location> feature can be used to explicitly change the
+            # location of generated targets.
+            local l = [ get <location> ] ;
+            if $(l)
+            {
+                self.target-path = $(l) ;
+            }
+            else
+            {
+                local p = [ as-path ] ;
+                p = [ property-set.hash-maybe $(p) ] ;
+                
+                # A real ugly hack. Boost regression test system requires
+                # specific target paths, and it seems that changing it to handle
+                # other directory layout is really hard. For that reason, we
+                # teach V2 to do the things regression system requires. The
+                # value of '<location-prefix>' is prepended to the path.
+                local prefix = [ get <location-prefix> ] ;
+                if $(prefix)
+                {
+                    self.target-path = [ path.join $(prefix) $(p) ] ;
+                }
+                else
+                {
+                    self.target-path = $(p) ;
+                }
+                if ! $(self.target-path)
+                {
+                    self.target-path = . ;
+                }
+                # The path is relative to build dir.
+                self.target-path += true ;
+            }
+        }
+        return $(self.target-path) ;
+    }
+
+    rule add ( ps )
+    {
+        if ! $(self.added.$(ps))
+        {
+            self.added.$(ps) = [ property-set.create $(self.raw) [ $(ps).raw ] ] ;
+        }
+        return $(self.added.$(ps)) ;
+    }
+
+    rule add-raw ( properties * )
+    {
+        return [ add [ property-set.create $(properties) ] ] ;
+    }
+
+    rule link-incompatible-with ( ps )
+    {
+        if ! $(.li.$(ps))
+        {
+            local li1 = [ $(__name__).link-incompatible ] ;
+            local li2 = [ $(ps).link-incompatible ] ;
+            if [ set.equal $(li1) : $(li2) ]
+            {
+                .li.$(ps) = false ;
+            }
+            else
+            {
+                .li.$(ps) = true ;
+            }
+        }
+        if $(.li.$(ps)) = true
+        {
+            return true ;
+        }
+        else
+        {
+            return ;
+        }
+    }
+
+    # Returns all values of 'feature'.
+    #
+    rule get ( feature )
+    {
+        if ! $(self.map-built)
+        {
+            # For each feature, create a member var and assign all values to it.
+            # Since all regular member vars start with 'self', there will be no
+            # conflicts between names.
+            self.map-built = true ;
+            for local v in $(self.raw)
+            {
+                $(v:G) += $(v:G=) ;
+            }
+        }
+        return $($(feature)) ;
+    }
+}
+
+
+# Creates a new 'property-set' instance for the given raw properties or returns
+# an already existing ones.
+#
+rule create ( raw-properties * )
+{
+    raw-properties = [ sequence.unique
+        [ sequence.insertion-sort $(raw-properties) ] ] ;
+
+    local key = $(raw-properties:J=-:E=) ;
+
+    if ! $(.ps.$(key))
+    {
+        .ps.$(key) = [ new property-set $(raw-properties) ] ;
+    }
+    return $(.ps.$(key)) ;
+}
+NATIVE_RULE property-set : create ;
+
+
+# Creates a new 'property-set' instance after checking that all properties are
+# valid and converting incidental properties into gristed form.
+#
+rule create-with-validation ( raw-properties * )
+{
+    property.validate $(raw-properties) ;
+    return [ create [ property.make $(raw-properties) ] ] ;
+}
+
+
+# Creates a property-set from the input given by the user, in the context of
+# 'jamfile-module' at 'location'.
+#
+rule create-from-user-input ( raw-properties * : jamfile-module location )
+{
+    local specification = [ property.translate-paths $(raw-properties)
+        : $(location) ] ;
+    specification = [ property.translate-indirect $(specification)
+        : $(jamfile-module) ] ;
+    local project-id = [ project.attribute $(jamfile-module) id ] ;
+    project-id ?= [ path.root $(location) [ path.pwd ] ] ;
+    specification = [ property.translate-dependencies
+                      $(specification) : $(project-id) : $(location) ] ;
+    specification =
+        [ property.expand-subfeatures-in-conditions $(specification) ] ;
+    specification = [ property.make $(specification) ] ;
+    return [ property-set.create $(specification) ] ;
+}
+
+
+# Refines requirements with requirements provided by the user. Specially handles
+# "-<property>value" syntax in specification to remove given requirements.
+# - parent-requirements -- property-set object with requirements to refine.
+# - specification       -- string list of requirements provided by the user.
+# - project-module      -- module to which context indirect features will be
+#                          bound.
+# - location            -- path to which path features are relative.
+#
+rule refine-from-user-input ( parent-requirements : specification * :
+    project-module : location )
+{
+    if ! $(specification)
+    {
+        return $(parent-requirements) ;
+    }
+    else
+    {
+        local add-requirements ;
+        local remove-requirements ;
+
+        for local r in $(specification)
+        {
+            local m = [ MATCH "^-(.*)" : $(r) ] ;
+            if $(m)
+            {
+                remove-requirements += $(m) ;
+            }
+            else
+            {
+                add-requirements += $(r) ;
+            }
+        }
+
+        if $(remove-requirements)
+        {
+            # Need to create a property set, so that path features and indirect
+            # features are translated just like they are in project
+            # requirements.
+            local ps = [ property-set.create-from-user-input
+                $(remove-requirements) : $(project-module) $(location) ] ;
+
+            parent-requirements = [ property-set.create
+                [ set.difference [ $(parent-requirements).raw ]
+                : [ $(ps).raw ] ] ] ;
+            specification = $(add-requirements) ;
+        }
+
+        local requirements = [ property-set.create-from-user-input
+            $(specification) : $(project-module) $(location) ] ;
+
+        return [ $(parent-requirements).refine $(requirements) ] ;
+    }
+}
+
+
+# Returns a property-set with an empty set of properties.
+#
+rule empty ( )
+{
+    if ! $(.empty)
+    {
+        .empty = [ create ] ;
+    }
+    return $(.empty) ;
+}
+
+if [ option.get hash : : yes ] = yes
+{    
+    rule hash-maybe ( path ? )
+    {
+        path ?= "" ;
+        return [ MD5 $(path) ] ;
+    }
+}
+else
+{
+    rule hash-maybe ( path ? )
+    {
+        return $(path) ;
+    }    
+}
+
diff --git a/jam-files/boost-build/build/property.jam b/jam-files/boost-build/build/property.jam
new file mode 100644
index 00000000..a2ad5226
--- /dev/null
+++ b/jam-files/boost-build/build/property.jam
@@ -0,0 +1,788 @@
+# Copyright 2001, 2002, 2003 Dave Abrahams
+# Copyright 2006 Rene Rivera
+# Copyright 2002, 2003, 2004, 2005, 2006 Vladimir Prus
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+import errors ;
+import feature ;
+import indirect ;
+import path ;
+import regex ;
+import string ;
+import sequence ;
+import set ;
+import utility ;
+
+
+# Refines 'properties' by overriding any non-free and non-conditional properties
+# for which a different value is specified in 'requirements'. Returns the
+# resulting list of properties.
+#
+rule refine ( properties * : requirements * )
+{
+    local result ;
+    local error ;
+
+    # All the 'requirements' elements should be present in the result. Record
+    # them so that we can handle 'properties'.
+    for local r in $(requirements)
+    {
+        # Do not consider conditional requirements.
+        if ! [ MATCH (:) : $(r:G=) ]
+        {
+            # Note: cannot use a local variable here, so use an ugly name.
+            __require__$(r:G) = $(r:G=) ;
+        }
+    }
+
+    for local p in $(properties)
+    {
+        if [ MATCH (:) : $(p:G=) ]
+        {
+            # Do not modify conditional properties.
+            result += $(p) ;
+        }
+        else if free in [ feature.attributes $(p:G) ]
+        {
+            # Do not modify free properties.
+            result += $(p) ;
+        }
+        else
+        {
+            local required-value = $(__require__$(p:G)) ;
+            if $(required-value)
+            {
+                if $(p:G=) != $(required-value)
+                {
+                    result += $(p:G)$(required-value) ;
+                }
+                else
+                {
+                    result += $(p) ;
+                }
+            }
+            else
+            {
+                result += $(p) ;
+            }
+        }
+    }
+
+    # Unset our ugly map.
+    for local r in $(requirements)
+    {
+        __require__$(r:G) = ;
+    }
+
+    if $(error)
+    {
+        return $(error) ;
+    }
+    else
+    {
+        return [ sequence.unique $(result) $(requirements) ] ;
+    }
+}
+
+
+# Removes all conditional properties whose conditions are not met. For those
+# with met conditions, removes the condition. Properties in conditions are
+# looked up in 'context'.
+#
+rule evaluate-conditionals-in-context ( properties * : context * )
+{
+    local base ;
+    local conditionals ;
+    for local p in $(properties)
+    {
+        if [ MATCH (:<) : $(p) ]
+        {
+            conditionals += $(p) ;
+        }
+        else
+        {
+            base += $(p) ;
+        }
+    }
+
+    local result = $(base) ;
+    for local p in $(conditionals)
+    {
+        # Separate condition and property.
+        local s = [ MATCH (.*):(<.*) : $(p) ] ;
+        # Split condition into individual properties.
+        local condition = [ regex.split $(s[1]) "," ] ;
+        # Evaluate condition.
+        if ! [ MATCH (!).* : $(condition:G=) ]
+        {
+            # Only positive checks
+            if $(condition) in $(context)
+            {
+                result += $(s[2]) ;
+            }
+        }
+        else
+        {
+            # Have negative checks
+            local fail ;
+            while $(condition)
+            {
+                local c = $(condition[1]) ;
+                local m = [ MATCH !(.*) : $(c) ] ;
+                if $(m)
+                {
+                    local p = $(m:G=$(c:G)) ;
+                    if $(p) in $(context)
+                    {
+                        fail = true ;
+                        c = ;
+                    }                    
+                }    
+                else
+                {
+                    if ! $(c) in $(context)
+                    {
+                        fail = true ;
+                        c = ;
+                    }                    
+                }
+                condition = $(condition[2-]) ;
+            }
+            if ! $(fail)
+            {
+                result += $(s[2]) ;
+            }            
+        }                
+    }
+    return $(result) ;
+}
+
+
+rule expand-subfeatures-in-conditions ( properties * )
+{
+    local result ;
+    for local p in $(properties)
+    {
+        local s = [ MATCH (.*):(<.*) : $(p) ] ;
+        if ! $(s)
+        {
+            result += $(p) ;
+        }
+        else
+        {
+            local condition = $(s[1]) ;
+            local value     = $(s[2]) ;
+            # Condition might include several elements.
+            condition = [ regex.split $(condition) "," ] ;
+            local e ;
+            for local c in $(condition)
+            {
+                # It is common for a condition to include a toolset or
+                # subfeatures that have not been defined. In that case we want
+                # the condition to simply 'never be satisfied' and validation
+                # would only produce a spurious error so we prevent it by
+                # passing 'true' as the second parameter.
+                e += [ feature.expand-subfeatures $(c) : true ] ;
+            }
+            if $(e) = $(condition)
+            {
+                # (todo)
+                #   This is just an optimization and possibly a premature one at
+                # that.
+                #                             (todo) (12.07.2008.) (Jurko)
+                result += $(p) ;
+            }
+            else
+            {
+                result += $(e:J=,):$(value) ;
+            }
+        }
+    }
+    return $(result) ;
+}
+
+
+# Helper for as-path, below. Orders properties with the implicit ones first, and
+# within the two sections in alphabetical order of feature name.
+#
+local rule path-order ( x y )
+{
+    if $(y:G) && ! $(x:G)
+    {
+        return true ;
+    }
+    else if $(x:G) && ! $(y:G)
+    {
+        return ;
+    }
+    else
+    {
+        if ! $(x:G)
+        {
+            x = [ feature.expand-subfeatures $(x) ] ;
+            y = [ feature.expand-subfeatures $(y) ] ;
+        }
+
+        if $(x[1]) < $(y[1])
+        {
+            return true ;
+        }
+    }
+}
+
+
+local rule abbreviate-dashed ( string )
+{
+    local r ;
+    for local part in [ regex.split $(string) - ]
+    {
+        r += [ string.abbreviate $(part) ] ;
+    }
+    return $(r:J=-) ;
+}
+
+
+local rule identity ( string )
+{
+    return $(string) ;
+}
+
+
+if --abbreviate-paths in [ modules.peek : ARGV ]
+{
+    .abbrev = abbreviate-dashed ;
+}
+else
+{
+    .abbrev = identity ;
+}
+
+
+# Returns a path representing the given expanded property set.
+#
+rule as-path ( properties * )
+{
+    local entry = .result.$(properties:J=-) ;
+
+    if ! $($(entry))
+    {
+        # Trim redundancy.
+        properties = [ feature.minimize $(properties) ] ;
+
+        # Sort according to path-order.
+        properties = [ sequence.insertion-sort $(properties) : path-order ] ;
+
+        local components ;
+        for local p in $(properties)
+        {
+            if $(p:G)
+            {
+                local f = [ utility.ungrist $(p:G) ] ;
+                p = $(f)-$(p:G=) ;
+            }
+            components += [ $(.abbrev) $(p) ] ;
+        }
+
+        $(entry) = $(components:J=/) ;
+    }
+
+    return $($(entry)) ;
+}
+
+
+# Exit with error if property is not valid.
+#
+local rule validate1 ( property )
+{
+    local msg ;
+    if $(property:G)
+    {
+        local feature = $(property:G) ;
+        local value = $(property:G=) ;
+
+        if ! [ feature.valid $(feature) ]
+        {
+            # Ungrist for better error messages.
+            feature = [ utility.ungrist $(property:G) ] ;
+            msg = "unknown feature '$(feature)'" ;
+        }
+        else if $(value) && ! free in [ feature.attributes $(feature) ]
+        {
+            feature.validate-value-string $(feature) $(value) ;
+        }
+        else if ! ( $(value) || ( optional in [ feature.attributes $(feature) ] ) )
+        {
+            # Ungrist for better error messages.
+            feature = [ utility.ungrist $(property:G) ] ;
+            msg = "No value specified for feature '$(feature)'" ;
+        }
+    }
+    else
+    {
+        local feature = [ feature.implied-feature $(property) ] ;
+        feature.validate-value-string $(feature) $(property) ;
+    }
+    if $(msg)
+    {
+        errors.error "Invalid property "'$(property:J=" ")'": "$(msg:J=" "). ;
+    }
+}
+
+
+rule validate ( properties * )
+{
+    for local p in $(properties)
+    {
+        validate1 $(p) ;
+    }
+}
+
+
+rule validate-property-sets ( property-sets * )
+{
+    for local s in $(property-sets)
+    {
+        validate [ feature.split $(s) ] ;
+    }
+}
+
+
+# Expands any implicit property values in the given property 'specification' so
+# they explicitly state their feature.
+#
+rule make ( specification * )
+{
+    local result ;
+    for local e in $(specification)
+    {
+        if $(e:G)
+        {
+            result += $(e) ;
+        }
+        else if [ feature.is-implicit-value $(e) ]
+        {
+            local feature = [ feature.implied-feature $(e) ] ;
+            result += $(feature)$(e) ;
+        }
+        else
+        {
+            errors.error "'$(e)' is not a valid property specification" ;
+        }
+    }
+    return $(result) ;
+}
+
+
+# Returns a property set containing all the elements in 'properties' that do not
+# have their attributes listed in 'attributes'.
+#
+rule remove ( attributes + : properties * )
+{
+    local result ;
+    for local e in $(properties)
+    {
+        if ! [ set.intersection $(attributes) : [ feature.attributes $(e:G) ] ]
+        {
+            result += $(e) ;
+        }
+    }
+    return $(result) ;
+}
+
+
+# Returns a property set containing all the elements in 'properties' that have
+# their attributes listed in 'attributes'.
+#
+rule take ( attributes + : properties * )
+{
+    local result ;
+    for local e in $(properties)
+    {
+        if [ set.intersection $(attributes) : [ feature.attributes $(e:G) ] ]
+        {
+            result += $(e) ;
+        }
+    }
+    return $(result) ;
+}
+
+
+# Selects properties corresponding to any of the given features.
+#
+rule select ( features * : properties * )
+{
+    local result ;
+
+    # Add any missing angle brackets.
+    local empty = "" ;
+    features = $(empty:G=$(features)) ;
+
+    for local p in $(properties)
+    {
+        if $(p:G) in $(features)
+        {
+            result += $(p) ;
+        }
+    }
+    return $(result) ;
+}
+
+
+# Returns a modified version of properties with all values of the given feature
+# replaced by the given value. If 'value' is empty the feature will be removed.
+#
+rule change ( properties * : feature value ? )
+{
+    local result ;
+    for local p in $(properties)
+    {
+        if $(p:G) = $(feature)
+        {
+            result += $(value:G=$(feature)) ;
+        }
+        else
+        {
+            result += $(p) ;
+        }
+    }
+    return $(result) ;
+}
+
+
+# If 'property' is a conditional property, returns the condition and the
+# property. E.g. <variant>debug,<toolset>gcc:<inlining>full will become
+# <variant>debug,<toolset>gcc <inlining>full. Otherwise, returns an empty
+# string.
+#
+rule split-conditional ( property )
+{
+    local m = [ MATCH "(.+):<(.+)" : $(property) ] ;
+    if $(m)
+    {
+        return $(m[1]) <$(m[2]) ;
+    }
+}
+
+
+# Interpret all path properties in 'properties' as relative to 'path'. The
+# property values are assumed to be in system-specific form, and will be
+# translated into normalized form.
+#
+rule translate-paths ( properties * : path )
+{
+    local result ;
+    for local p in $(properties)
+    {
+        local split = [ split-conditional $(p) ] ;
+        local condition = "" ;
+        if $(split)
+        {
+            condition = $(split[1]): ;
+            p = $(split[2]) ;
+        }
+
+        if path in [ feature.attributes $(p:G) ]
+        {
+            local values = [ regex.split $(p:TG=) "&&" ] ;
+            local t ;
+            for local v in $(values)
+            {
+                t += [ path.root [ path.make $(v) ] $(path) ] ;
+            }
+            t = $(t:J="&&") ;
+            result += $(condition)$(t:TG=$(p:G)) ;
+        }
+        else
+        {
+            result += $(condition)$(p) ;
+        }
+    }
+    return $(result) ;
+}
+
+
+# Assumes that all feature values that start with '@' are names of rules, used
+# in 'context-module'. Such rules can be either local to the module or global.
+# Converts such values into 'indirect-rule' format (see indirect.jam), so they
+# can be called from other modules. Does nothing for such values that are
+# already in the 'indirect-rule' format.
+#
+rule translate-indirect ( specification * : context-module )
+{
+    local result ;
+    for local p in $(specification)
+    {
+        local m = [ MATCH ^@(.+) : $(p:G=) ] ;
+        if $(m)
+        {
+            local v ;
+            if [ MATCH "^([^%]*)%([^%]+)$" : $(m) ]
+            {
+                # Rule is already in the 'indirect-rule' format.
+                v = $(m) ;
+            }
+            else
+            {
+                if ! [ MATCH ".*([.]).*" : $(m) ]
+                {
+                    # This is an unqualified rule name. The user might want to
+                    # set flags on this rule name and toolset.flag
+                    # auto-qualifies it. Need to do the same here so flag
+                    # setting works. We can arrange for toolset.flag to *not*
+                    # auto-qualify the argument but then two rules defined in
+                    # two Jamfiles would conflict.
+                    m = $(context-module).$(m) ;
+                }
+                v = [ indirect.make $(m) : $(context-module) ] ;
+            }
+
+            v = @$(v) ;
+            result += $(v:G=$(p:G)) ;
+        }
+        else
+        {
+            result += $(p) ;
+        }
+    }
+    return $(result) ;
+}
+
+
+# Binds all dependency properties in a list relative to the given project.
+# Targets with absolute paths will be left unchanged and targets which have a
+# project specified will have the path to the project interpreted relative to
+# the specified location.
+#
+rule translate-dependencies ( specification * : project-id : location )
+{
+    local result ;
+    for local p in $(specification)
+    {
+        local split = [ split-conditional $(p) ] ;
+        local condition = "" ;
+        if $(split)
+        {
+            condition = $(split[1]): ;
+            p = $(split[2]) ;
+        }
+        if dependency in [ feature.attributes $(p:G) ]
+        {
+            local split-target = [ regex.match (.*)//(.*) : $(p:G=) ] ;
+            if $(split-target)
+            {
+                local rooted = [ path.root [ path.make $(split-target[1]) ]
+                     [ path.root $(location) [ path.pwd ] ] ] ;
+                result += $(condition)$(p:G)$(rooted)//$(split-target[2]) ;
+            }
+            else if [ path.is-rooted $(p:G=) ]
+            {
+                result += $(condition)$(p) ;
+            }
+            else
+            {
+                result += $(condition)$(p:G)$(project-id)//$(p:G=) ;
+            }
+        }
+        else
+        {
+            result += $(condition)$(p) ;
+        }
+    }
+    return $(result) ;
+}
+
+
+# Class maintaining a property set -> string mapping.
+#
+class property-map
+{
+    import errors ;
+    import numbers ;
+    import sequence ;
+
+    rule __init__ ( )
+    {
+        self.next-flag = 1 ;
+    }
+
+    # Associate 'value' with 'properties'.
+    #
+    rule insert ( properties + : value )
+    {
+        self.all-flags += $(self.next-flag) ;
+        self.properties.$(self.next-flag) = $(properties) ;
+        self.value.$(self.next-flag) = $(value) ;
+
+        self.next-flag = [ numbers.increment $(self.next-flag) ] ;
+    }
+
+    # Returns the value associated with 'properties' or any subset of it. If
+    # more than one subset has a value assigned to it, returns the value for the
+    # longest subset, if it is unique.
+    #
+    rule find ( properties + )
+    {
+        return [ find-replace $(properties) ] ;
+    }
+
+    # Returns the value associated with 'properties'. If 'value' parameter is
+    # given, replaces the found value.
+    #
+    rule find-replace ( properties + : value ? )
+    {
+        # First find all matches.
+        local matches ;
+        local match-ranks ;
+        for local i in $(self.all-flags)
+        {
+            if $(self.properties.$(i)) in $(properties)
+            {
+                matches += $(i) ;
+                match-ranks += [ sequence.length $(self.properties.$(i)) ] ;
+            }
+        }
+        local best = [ sequence.select-highest-ranked $(matches)
+            : $(match-ranks) ] ;
+        if $(best[2])
+        {            
+            errors.error "Ambiguous key $(properties:J= :E=)" ;
+        }
+        local original = $(self.value.$(best)) ;
+        if $(value)
+        {
+            self.value.$(best) = $(value) ;
+        }
+        return $(original) ;
+    }
+}
+
+
+rule __test__ ( )
+{
+    import assert ;
+    import "class" : new ;
+    import errors : try catch ;
+    import feature ;
+
+    # Local rules must be explicitly re-imported.
+    import property : path-order abbreviate-dashed ;
+
+    feature.prepare-test property-test-temp ;
+
+    feature.feature toolset : gcc : implicit symmetric ;
+    feature.subfeature toolset gcc : version : 2.95.2 2.95.3 2.95.4 3.0 3.0.1
+        3.0.2 : optional ;
+    feature.feature define : : free ;
+    feature.feature runtime-link : dynamic static : symmetric link-incompatible ;
+    feature.feature optimization : on off ;
+    feature.feature variant : debug release : implicit composite symmetric ;
+    feature.feature rtti : on off : link-incompatible ;
+
+    feature.compose <variant>debug : <define>_DEBUG <optimization>off ;
+    feature.compose <variant>release : <define>NDEBUG <optimization>on ;
+
+    validate <toolset>gcc <toolset>gcc-3.0.1 : $(test-space) ;
+
+    assert.true  path-order $(test-space) debug <define>foo ;
+    assert.false path-order $(test-space) <define>foo debug ;
+    assert.true  path-order $(test-space) gcc debug ;
+    assert.false path-order $(test-space) debug gcc ;
+    assert.true  path-order $(test-space) <optimization>on <rtti>on ;
+    assert.false path-order $(test-space) <rtti>on <optimization>on ;
+
+    assert.result-set-equal <toolset>gcc <rtti>off <define>FOO
+        : refine <toolset>gcc <rtti>off
+        : <define>FOO
+        : $(test-space) ;
+
+    assert.result-set-equal <toolset>gcc <optimization>on
+        : refine <toolset>gcc <optimization>off
+        : <optimization>on
+        : $(test-space) ;
+
+    assert.result-set-equal <toolset>gcc <rtti>off
+        : refine <toolset>gcc : <rtti>off : $(test-space) ;
+
+    assert.result-set-equal <toolset>gcc <rtti>off <rtti>off:<define>FOO
+        : refine <toolset>gcc : <rtti>off <rtti>off:<define>FOO
+        : $(test-space) ;
+
+    assert.result-set-equal <toolset>gcc:<define>foo <toolset>gcc:<define>bar
+        : refine <toolset>gcc:<define>foo : <toolset>gcc:<define>bar
+        : $(test-space) ;
+
+    assert.result <define>MY_RELEASE
+        : evaluate-conditionals-in-context
+          <variant>release,<rtti>off:<define>MY_RELEASE
+        : <toolset>gcc <variant>release <rtti>off ;
+
+    assert.result debug
+        : as-path <optimization>off <variant>debug
+        : $(test-space) ;
+
+    assert.result gcc/debug/rtti-off
+        : as-path <toolset>gcc <optimization>off <rtti>off <variant>debug
+        : $(test-space) ;
+
+    assert.result optmz-off : abbreviate-dashed optimization-off ;
+    assert.result rntm-lnk-sttc : abbreviate-dashed runtime-link-static ;
+
+    try ;
+        validate <feature>value : $(test-space) ;
+    catch "Invalid property '<feature>value': unknown feature 'feature'." ;
+
+    try ;
+        validate <rtti>default : $(test-space) ;
+    catch \"default\" is not a known value of feature <rtti> ;
+
+    validate <define>WHATEVER : $(test-space) ;
+
+    try ;
+        validate <rtti> : $(test-space) ;
+    catch "Invalid property '<rtti>': No value specified for feature 'rtti'." ;
+
+    try ;
+        validate value : $(test-space) ;
+    catch "value" is not a value of an implicit feature ;
+
+    assert.result-set-equal <rtti>on
+        : remove free implicit : <toolset>gcc <define>foo <rtti>on : $(test-space) ;
+
+    assert.result-set-equal <include>a
+        : select include : <include>a <toolset>gcc ;
+
+    assert.result-set-equal <include>a
+        : select include bar : <include>a <toolset>gcc ;
+
+    assert.result-set-equal <include>a <toolset>gcc
+        : select include <bar> <toolset> : <include>a <toolset>gcc ;
+
+    assert.result-set-equal <toolset>kylix <include>a
+        : change <toolset>gcc <include>a : <toolset> kylix ;
+
+    pm = [ new property-map ] ;
+    $(pm).insert <toolset>gcc : o ;
+    $(pm).insert <toolset>gcc <os>NT : obj ;
+    $(pm).insert <toolset>gcc <os>CYGWIN : obj ;
+
+    assert.equal o : [ $(pm).find <toolset>gcc ] ;
+
+    assert.equal obj : [ $(pm).find <toolset>gcc <os>NT ] ;
+
+    try ;
+        $(pm).find <toolset>gcc <os>NT <os>CYGWIN ;
+    catch "Ambiguous key <toolset>gcc <os>NT <os>CYGWIN" ;
+
+    # Test ordinary properties.
+    assert.result : split-conditional <toolset>gcc ;
+
+    # Test properties with ":".
+    assert.result : split-conditional <define>FOO=A::B ;
+
+    # Test conditional feature.
+    assert.result-set-equal <toolset>gcc,<toolset-gcc:version>3.0 <define>FOO
+        : split-conditional <toolset>gcc,<toolset-gcc:version>3.0:<define>FOO ;
+
+    feature.finish-test property-test-temp ;
+}
diff --git a/jam-files/boost-build/build/property.py b/jam-files/boost-build/build/property.py
new file mode 100644
index 00000000..c4b13dbc
--- /dev/null
+++ b/jam-files/boost-build/build/property.py
@@ -0,0 +1,593 @@
+# Status: ported, except for tests and --abbreviate-paths.
+# Base revision: 64070
+#
+# Copyright 2001, 2002, 2003 Dave Abrahams 
+# Copyright 2006 Rene Rivera 
+# Copyright 2002, 2003, 2004, 2005, 2006 Vladimir Prus 
+# Distributed under the Boost Software License, Version 1.0. 
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) 
+
+import re
+from b2.util.utility import *
+from b2.build import feature
+from b2.util import sequence, qualify_jam_action
+import b2.util.set
+from b2.manager import get_manager
+
+__re_two_ampersands = re.compile ('&&')
+__re_comma = re.compile (',')
+__re_split_condition = re.compile ('(.*):(<.*)')
+__re_split_conditional = re.compile (r'(.+):<(.+)')
+__re_colon = re.compile (':')
+__re_has_condition = re.compile (r':<')
+__re_separate_condition_and_property = re.compile (r'(.*):(<.*)')
+
+class Property(object):
+
+    __slots__ = ('_feature', '_value', '_condition')
+
+    def __init__(self, f, value, condition = []):
+        if type(f) == type(""):
+            f = feature.get(f)
+        # At present, single property has a single value.
+        assert type(value) != type([])
+        assert(f.free() or value.find(':') == -1)
+        self._feature = f
+        self._value = value
+        self._condition = condition
+        
+    def feature(self):
+        return self._feature
+
+    def value(self):
+        return self._value
+
+    def condition(self):
+        return self._condition
+
+    def to_raw(self):
+        result = "<" + self._feature.name() + ">" + str(self._value)
+        if self._condition:
+            result = ",".join(str(p) for p in self._condition) + ':' + result
+        return result
+
+    def __str__(self):
+        return self.to_raw()
+
+    def __hash__(self):
+        # FIXME: consider if this class should be value-is-identity one
+        return hash((self._feature, self._value, tuple(self._condition)))
+
+    def __cmp__(self, other):
+        return cmp((self._feature, self._value, self._condition),
+                   (other._feature, other._value, other._condition))
+                           
+
+def create_from_string(s, allow_condition=False):
+
+    condition = []
+    import types
+    if not isinstance(s, types.StringType):
+        print type(s)
+    if __re_has_condition.search(s):
+
+        if not allow_condition:
+            raise BaseException("Conditional property is not allowed in this context")
+
+        m = __re_separate_condition_and_property.match(s)
+        condition = m.group(1)
+        s = m.group(2)
+
+    # FIXME: break dependency cycle
+    from b2.manager import get_manager
+
+    feature_name = get_grist(s)
+    if not feature_name:
+        if feature.is_implicit_value(s):
+            f = feature.implied_feature(s)
+            value = s
+        else:        
+            raise get_manager().errors()("Invalid property '%s' -- unknown feature" % s)
+    else:
+        f = feature.get(feature_name)        
+
+        value = get_value(s)
+        if not value:
+            get_manager().errors()("Invalid property '%s' -- no value specified" % s)
+
+
+    if condition:
+        condition = [create_from_string(x) for x in condition.split(',')]
+                   
+    return Property(f, value, condition)
+
+def create_from_strings(string_list, allow_condition=False):
+
+    return [create_from_string(s, allow_condition) for s in string_list]
+
+def reset ():
+    """ Clear the module state. This is mainly for testing purposes.
+    """
+    global __results
+
+    # A cache of results from as_path
+    __results = {}
+    
+reset ()
+
+        
+def path_order (x, y):
+    """ Helper for as_path, below. Orders properties with the implicit ones
+        first, and within the two sections in alphabetical order of feature
+        name.
+    """
+    if x == y:
+        return 0
+        
+    xg = get_grist (x)
+    yg = get_grist (y)
+
+    if yg and not xg:
+        return -1
+
+    elif xg and not yg:
+        return 1
+
+    else:
+        if not xg:            
+            x = feature.expand_subfeatures([x])
+            y = feature.expand_subfeatures([y])
+        
+        if x < y:
+            return -1
+        elif x > y:
+            return 1
+        else:
+            return 0
+
+def identify(string):
+    return string 
+
+# Uses Property
+def refine (properties, requirements):
+    """ Refines 'properties' by overriding any non-free properties 
+        for which a different value is specified in 'requirements'. 
+        Conditional requirements are just added without modification.
+        Returns the resulting list of properties.
+    """
+    # The result has no duplicates, so we store it in a set
+    result = set()
+    
+    # Records all requirements.
+    required = {}
+    
+    # All the elements of requirements should be present in the result
+    # Record them so that we can handle 'properties'.
+    for r in requirements:
+        # Don't consider conditional requirements.
+        if not r.condition():
+            required[r.feature()] = r
+
+    for p in properties:
+        # Skip conditional properties
+        if p.condition():
+            result.add(p)
+        # No processing for free properties
+        elif p.feature().free():
+            result.add(p)
+        else:
+            if required.has_key(p.feature()):
+                result.add(required[p.feature()])
+            else:
+                result.add(p)
+
+    return sequence.unique(list(result) + requirements)
+
+def translate_paths (properties, path):
+    """ Interpret all path properties in 'properties' as relative to 'path'
+        The property values are assumed to be in system-specific form, and
+        will be translated into normalized form.
+        """
+    result = []
+
+    for p in properties:
+
+        if p.feature().path():
+            values = __re_two_ampersands.split(p.value())
+            
+            new_value = "&&".join(os.path.join(path, v) for v in values)
+
+            if new_value != p.value():
+                result.append(Property(p.feature(), new_value, p.condition()))
+            else:
+                result.append(p)
+            
+        else:
+            result.append (p)
+
+    return result
+
+def translate_indirect(properties, context_module):
+    """Assumes that all feature values that start with '@' are
+    names of rules, used in 'context-module'. Such rules can be
+    either local to the module or global. Qualified local rules
+    with the name of the module."""
+    result = []
+    for p in properties:
+        if p.value()[0] == '@':
+            q = qualify_jam_action(p.value()[1:], context_module)
+            get_manager().engine().register_bjam_action(q)
+            result.append(Property(p.feature(), '@' + q, p.condition()))
+        else:
+            result.append(p)
+
+    return result
+
+def validate (properties):
+    """ Exit with error if any of the properties is not valid.
+        properties may be a single property or a sequence of properties.
+    """
+    
+    if isinstance (properties, str):
+        __validate1 (properties)
+    else:
+        for p in properties:
+            __validate1 (p)
+
+def expand_subfeatures_in_conditions (properties):
+
+    result = []
+    for p in properties:
+
+        if not p.condition():
+            result.append(p)
+        else:
+            expanded = []
+            for c in p.condition():
+
+                if c.feature().name().startswith("toolset") or c.feature().name() == "os":
+                    # It common that condition includes a toolset which
+                    # was never defined, or mentiones subfeatures which
+                    # were never defined. In that case, validation will
+                    # only produce an spirious error, so don't validate.
+                    expanded.extend(feature.expand_subfeatures ([c], True))
+                else:
+                    expanded.extend(feature.expand_subfeatures([c]))
+
+            result.append(Property(p.feature(), p.value(), expanded))
+
+    return result
+
+# FIXME: this should go
+def split_conditional (property):
+    """ If 'property' is conditional property, returns
+        condition and the property, e.g
+        <variant>debug,<toolset>gcc:<inlining>full will become
+        <variant>debug,<toolset>gcc <inlining>full.
+        Otherwise, returns empty string.
+    """
+    m = __re_split_conditional.match (property)
+    
+    if m:
+        return (m.group (1), '<' + m.group (2))
+
+    return None
+
+
+def select (features, properties):
+    """ Selects properties which correspond to any of the given features.
+    """
+    result = []
+    
+    # add any missing angle brackets
+    features = add_grist (features)
+
+    return [p for p in properties if get_grist(p) in features]
+
+def validate_property_sets (sets):
+    for s in sets:
+        validate(s.all())
+
+def evaluate_conditionals_in_context (properties, context):
+    """ Removes all conditional properties which conditions are not met
+        For those with met conditions, removes the condition. Properies
+        in conditions are looked up in 'context'
+    """
+    base = []
+    conditional = []
+
+    for p in properties:
+        if p.condition():
+            conditional.append (p)
+        else:
+            base.append (p)
+
+    result = base[:]
+    for p in conditional:
+
+        # Evaluate condition
+        # FIXME: probably inefficient
+        if all(x in context for x in p.condition()):
+            result.append(Property(p.feature(), p.value()))
+
+    return result
+
+
+def change (properties, feature, value = None):
+    """ Returns a modified version of properties with all values of the
+        given feature replaced by the given value.
+        If 'value' is None the feature will be removed.
+    """
+    result = []
+    
+    feature = add_grist (feature)
+
+    for p in properties:
+        if get_grist (p) == feature:
+            if value:
+                result.append (replace_grist (value, feature))
+
+        else:
+            result.append (p)
+
+    return result
+
+
+################################################################
+# Private functions
+
+def __validate1 (property):
+    """ Exit with error if property is not valid.
+    """        
+    msg = None
+
+    if not property.feature().free():
+        feature.validate_value_string (property.feature(), property.value())
+
+
+###################################################################
+# Still to port.
+# Original lines are prefixed with "#   "
+#
+#   
+#   import utility : ungrist ;
+#   import sequence : unique ;
+#   import errors : error ;
+#   import feature ;
+#   import regex ;
+#   import sequence ;
+#   import set ;
+#   import path ;
+#   import assert ;
+#   
+#   
+
+
+#   rule validate-property-sets ( property-sets * )
+#   {
+#       for local s in $(property-sets)
+#       {
+#           validate [ feature.split $(s) ] ;
+#       }
+#   }
+#
+
+def remove(attributes, properties):
+    """Returns a property sets which include all the elements
+    in 'properties' that do not have attributes listed in 'attributes'."""
+    
+    result = []
+    for e in properties:
+        attributes_new = feature.attributes(get_grist(e))
+        has_common_features = 0
+        for a in attributes_new:
+            if a in attributes:
+                has_common_features = 1
+                break
+
+        if not has_common_features:
+            result += e
+
+    return result
+
+
+def take(attributes, properties):
+    """Returns a property set which include all
+    properties in 'properties' that have any of 'attributes'."""
+    result = []
+    for e in properties:
+        if b2.util.set.intersection(attributes, feature.attributes(get_grist(e))):
+            result.append(e)
+    return result
+
+def translate_dependencies(properties, project_id, location):
+
+    result = []
+    for p in properties:
+
+        if not p.feature().dependency():
+            result.append(p)
+        else:
+            v = p.value()
+            m = re.match("(.*)//(.*)", v)
+            if m:
+                rooted = m.group(1)
+                if rooted[0] == '/':
+                    # Either project id or absolute Linux path, do nothing.
+                    pass
+                else:
+                    rooted = os.path.join(os.getcwd(), location, rooted)
+                    
+                result.append(Property(p.feature(), rooted + "//" + m.group(2), p.condition()))
+                
+            elif os.path.isabs(v):                
+                result.append(p)
+            else:
+                result.append(Property(p.feature(), project_id + "//" + v, p.condition()))
+
+    return result
+
+
+class PropertyMap:
+    """ Class which maintains a property set -> string mapping.
+    """
+    def __init__ (self):
+        self.__properties = []
+        self.__values = []
+    
+    def insert (self, properties, value):
+        """ Associate value with properties.
+        """
+        self.__properties.append(properties)
+        self.__values.append(value)
+
+    def find (self, properties):
+        """ Return the value associated with properties
+        or any subset of it. If more than one
+        subset has value assigned to it, return the
+        value for the longest subset, if it's unique.
+        """
+        return self.find_replace (properties)
+
+    def find_replace(self, properties, value=None):
+        matches = []
+        match_ranks = []
+        
+        for i in range(0, len(self.__properties)):
+            p = self.__properties[i]
+                        
+            if b2.util.set.contains (p, properties):
+                matches.append (i)
+                match_ranks.append(len(p))
+
+        best = sequence.select_highest_ranked (matches, match_ranks)
+
+        if not best:
+            return None
+
+        if len (best) > 1:
+            raise NoBestMatchingAlternative ()
+
+        best = best [0]
+            
+        original = self.__values[best]
+
+        if value:
+            self.__values[best] = value
+
+        return original
+
+#   local rule __test__ ( )
+#   {
+#       import errors : try catch ;
+#       import feature ;
+#       import feature : feature subfeature compose ;
+#       
+#       # local rules must be explicitly re-imported
+#       import property : path-order ;
+#       
+#       feature.prepare-test property-test-temp ;
+#   
+#       feature toolset : gcc : implicit symmetric ;
+#       subfeature toolset gcc : version : 2.95.2 2.95.3 2.95.4
+#         3.0 3.0.1 3.0.2 : optional ;
+#       feature define : : free ;
+#       feature runtime-link : dynamic static : symmetric link-incompatible ;
+#       feature optimization : on off ;
+#       feature variant : debug release : implicit composite symmetric ;
+#       feature rtti : on off : link-incompatible ;
+#   
+#       compose <variant>debug : <define>_DEBUG <optimization>off ;
+#       compose <variant>release : <define>NDEBUG <optimization>on ;
+#   
+#       import assert ;
+#       import "class" : new ;
+#       
+#       validate <toolset>gcc  <toolset>gcc-3.0.1 : $(test-space) ;
+#       
+#       assert.result <toolset>gcc <rtti>off <define>FOO
+#           : refine <toolset>gcc <rtti>off
+#           : <define>FOO
+#           : $(test-space)
+#           ;
+#   
+#       assert.result <toolset>gcc <optimization>on
+#           : refine <toolset>gcc <optimization>off
+#           : <optimization>on
+#           : $(test-space)
+#           ;
+#   
+#       assert.result <toolset>gcc <rtti>off
+#           : refine <toolset>gcc : <rtti>off : $(test-space)
+#           ;
+#   
+#       assert.result <toolset>gcc <rtti>off <rtti>off:<define>FOO
+#           : refine <toolset>gcc : <rtti>off <rtti>off:<define>FOO 
+#           : $(test-space)
+#           ;
+#       
+#       assert.result <toolset>gcc:<define>foo <toolset>gcc:<define>bar 
+#           : refine <toolset>gcc:<define>foo : <toolset>gcc:<define>bar 
+#           : $(test-space)
+#           ;
+#   
+#       assert.result <define>MY_RELEASE
+#           : evaluate-conditionals-in-context 
+#             <variant>release,<rtti>off:<define>MY_RELEASE
+#             : <toolset>gcc <variant>release <rtti>off
+#                    
+#           ;
+#   
+#       try ;
+#           validate <feature>value : $(test-space) ;
+#       catch "Invalid property '<feature>value': unknown feature 'feature'." ;
+#   
+#       try ;
+#           validate <rtti>default : $(test-space) ;
+#       catch \"default\" is not a known value of feature <rtti> ;
+#       
+#       validate <define>WHATEVER : $(test-space) ;
+#   
+#       try ;
+#           validate <rtti> : $(test-space) ;
+#       catch "Invalid property '<rtti>': No value specified for feature 'rtti'." ;
+#   
+#       try ;
+#           validate value : $(test-space) ;
+#       catch "value" is not a value of an implicit feature ;
+#              
+#   
+#       assert.result <rtti>on 
+#           : remove free implicit : <toolset>gcc <define>foo <rtti>on : $(test-space) ;
+#   
+#       assert.result <include>a 
+#           : select include : <include>a <toolset>gcc ;
+#   
+#       assert.result <include>a 
+#           : select include bar : <include>a <toolset>gcc ;
+#   
+#       assert.result <include>a <toolset>gcc
+#           : select include <bar> <toolset> : <include>a <toolset>gcc ;
+#       
+#       assert.result <toolset>kylix <include>a 
+#           : change <toolset>gcc <include>a : <toolset> kylix ;
+#   
+#       # Test ordinary properties 
+#       assert.result 
+#         : split-conditional <toolset>gcc 
+#         ;
+#       
+#       # Test properties with ":"
+#       assert.result
+#         : split-conditional <define>FOO=A::B
+#         ;
+#       
+#       # Test conditional feature
+#       assert.result <toolset>gcc,<toolset-gcc:version>3.0 <define>FOO
+#         : split-conditional <toolset>gcc,<toolset-gcc:version>3.0:<define>FOO
+#         ;
+#       
+#       feature.finish-test property-test-temp ;
+#   }
+#   
+    
diff --git a/jam-files/boost-build/build/property_set.py b/jam-files/boost-build/build/property_set.py
new file mode 100644
index 00000000..f12eb90c
--- /dev/null
+++ b/jam-files/boost-build/build/property_set.py
@@ -0,0 +1,449 @@
+# Status: ported.
+# Base revision: 40480
+
+#  Copyright (C) Vladimir Prus 2002. Permission to copy, use, modify, sell and
+#  distribute this software is granted provided this copyright notice appears in
+#  all copies. This software is provided "as is" without express or implied
+#  warranty, and with no claim as to its suitability for any purpose.
+
+from b2.util.utility import *
+import property, feature, string
+import b2.build.feature
+from b2.exceptions import *
+from b2.util.sequence import unique
+from b2.util.set import difference
+from b2.util import cached
+
+from b2.manager import get_manager
+
+
+def reset ():
+    """ Clear the module state. This is mainly for testing purposes.
+    """
+    global __cache
+
+    # A cache of property sets
+    # TODO: use a map of weak refs?
+    __cache = {}
+    
+reset ()
+
+
+def create (raw_properties = []):
+    """ Creates a new 'PropertySet' instance for the given raw properties,
+        or returns an already existing one.
+    """
+    # FIXME: propagate to callers.
+    if len(raw_properties) > 0 and isinstance(raw_properties[0], property.Property):
+        x = raw_properties
+    else:        
+        x = [property.create_from_string(ps) for ps in raw_properties]
+    x.sort()
+    x = unique (x)
+
+    # FIXME: can we do better, e.g. by directly computing
+    # has value of the list?
+    key = tuple(x)
+
+    if not __cache.has_key (key):
+        __cache [key] = PropertySet(x)
+
+    return __cache [key]
+
+def create_with_validation (raw_properties):
+    """ Creates new 'PropertySet' instances after checking
+        that all properties are valid and converting incidental
+        properties into gristed form.
+    """
+    properties = [property.create_from_string(s) for s in raw_properties]
+    property.validate(properties)
+    
+    return create(properties)
+
+def empty ():
+    """ Returns PropertySet with empty set of properties.
+    """
+    return create ()
+
+def create_from_user_input(raw_properties, jamfile_module, location):
+    """Creates a property-set from the input given by the user, in the
+    context of 'jamfile-module' at 'location'"""
+
+    properties = property.create_from_strings(raw_properties, True)
+    properties = property.translate_paths(properties, location)
+    properties = property.translate_indirect(properties, jamfile_module)
+
+    project_id = get_manager().projects().attributeDefault(jamfile_module, 'id', None)
+    if not project_id:
+        project_id = os.path.abspath(location)    
+    properties = property.translate_dependencies(properties, project_id, location)
+    properties = property.expand_subfeatures_in_conditions(properties)
+    return create(properties)
+
+
+def refine_from_user_input(parent_requirements, specification, jamfile_module,
+                           location):
+    """Refines requirements with requirements provided by the user.
+    Specially handles "-<property>value" syntax in specification
+     to remove given requirements.
+     - parent-requirements -- property-set object with requirements
+       to refine
+     - specification -- string list of requirements provided by the use
+     - project-module -- the module to which context indirect features
+       will be bound.
+     - location -- the path to which path features are relative."""
+
+
+    if not specification:
+        return parent_requirements
+
+    
+    add_requirements = []
+    remove_requirements = []
+
+    for r in specification:
+        if r[0] == '-':
+            remove_requirements.append(r[1:])
+        else:
+            add_requirements.append(r)
+        
+    if remove_requirements:
+        # Need to create property set, so that path features
+        # and indirect features are translated just like they
+        # are in project requirements.
+        ps = create_from_user_input(remove_requirements,
+                                    jamfile_module, location)
+        
+        parent_requirements = create(difference(parent_requirements.all(),
+                                                ps.all()))
+        specification = add_requirements
+
+    requirements = create_from_user_input(specification,
+                                          jamfile_module, location)
+        
+    return parent_requirements.refine(requirements)
+    
+class PropertySet:
+    """ Class for storing a set of properties.
+        - there's 1<->1 correspondence between identity and value. No
+          two instances of the class are equal. To maintain this property,
+          the 'PropertySet.create' rule should be used to create new instances.
+          Instances are immutable.
+
+        - each property is classified with regard to it's effect on build
+          results. Incidental properties have no effect on build results, from
+          Boost.Build point of view. Others are either free, or non-free, which we
+          call 'base'. Each property belong to exactly one of those categories and
+          it's possible to get list of properties in each category.
+
+          In addition, it's possible to get list of properties with specific
+          attribute.
+
+        - several operations, like and refine and as_path are provided. They all use
+          caching whenever possible.
+    """
+    def __init__ (self, properties = []):
+
+
+        raw_properties = []
+        for p in properties:
+            raw_properties.append(p.to_raw())
+
+        self.all_ = properties
+        self.all_raw_ = raw_properties
+        self.all_set_ = set(properties)
+        
+        self.incidental_ = []
+        self.free_ = []
+        self.base_ = []
+        self.dependency_ = []
+        self.non_dependency_ = []
+        self.conditional_ = []
+        self.non_conditional_ = []
+        self.propagated_ = []
+        self.link_incompatible = []
+        
+        # A cache of refined properties.
+        self.refined_ = {}
+        
+        # A cache of property sets created by adding properties to this one.
+        self.added_ = {}
+
+        # Cache for the default properties.
+        self.defaults_ = None
+
+        # Cache for the expanded properties.
+        self.expanded_ = None
+
+        # Cache for the expanded composite properties
+        self.composites_ = None
+
+        # Cache for property set with expanded subfeatures
+        self.subfeatures_ = None
+
+        # Cache for the property set containing propagated properties.
+        self.propagated_ps_ = None
+        
+        # A map of features to its values.
+        self.feature_map_ = None
+        
+        # A tuple (target path, is relative to build directory)
+        self.target_path_ = None
+        
+        self.as_path_ = None
+        
+        # A cache for already evaluated sets.
+        self.evaluated_ = {}
+        
+        for p in raw_properties:
+            if not get_grist (p):
+                raise BaseException ("Invalid property: '%s'" % p)
+            
+            att = feature.attributes (get_grist (p))
+                                                                   
+            if 'propagated' in att:
+                self.propagated_.append (p)
+
+            if 'link_incompatible' in att:
+                self.link_incompatible.append (p)
+
+        for p in properties:
+
+            # A feature can be both incidental and free,
+            # in which case we add it to incidental.
+            if p.feature().incidental():
+                self.incidental_.append(p)
+            elif p.feature().free():
+                self.free_.append(p)
+            else:
+                self.base_.append(p)
+
+            if p.condition():
+                self.conditional_.append(p)
+            else:
+                self.non_conditional_.append(p)
+
+            if p.feature().dependency():
+                self.dependency_.append (p)
+            else:
+                self.non_dependency_.append (p)
+                
+
+    def all(self):
+        return self.all_
+    
+    def raw (self):
+        """ Returns the list of stored properties.
+        """
+        return self.all_raw_
+
+    def __str__(self):
+        return ' '.join(str(p) for p in self.all_)
+    
+    def base (self):
+        """ Returns properties that are neither incidental nor free.
+        """
+        return self.base_
+    
+    def free (self):
+        """ Returns free properties which are not dependency properties.
+        """
+        return self.free_
+
+    def non_free(self):
+        return self.base_ + self.incidental_
+
+    def dependency (self):
+        """ Returns dependency properties.
+        """
+        return self.dependency_
+    
+    def non_dependency (self):
+        """ Returns properties that are not dependencies.
+        """
+        return self.non_dependency_
+    
+    def conditional (self):
+        """ Returns conditional properties.
+        """
+        return self.conditional_
+        
+    def non_conditional (self):
+        """ Returns properties that are not conditional.
+        """
+        return self.non_conditional_
+              
+    def incidental (self):
+        """ Returns incidental properties.
+        """
+        return self.incidental_
+    
+    def refine (self, requirements):
+        """ Refines this set's properties using the requirements passed as an argument.
+        """
+        assert isinstance(requirements, PropertySet)
+        if not self.refined_.has_key (requirements):
+            r = property.refine(self.all_, requirements.all_)
+
+            self.refined_[requirements] = create(r)
+
+        return self.refined_[requirements]
+
+    def expand (self):
+        if not self.expanded_:
+            expanded = feature.expand(self.all_)
+            self.expanded_ = create(expanded)
+        return self.expanded_
+
+    def expand_subfeatures(self):
+        if not self.subfeatures_:
+            self.subfeatures_ = create(feature.expand_subfeatures(self.all_))
+        return self.subfeatures_
+
+    def evaluate_conditionals(self, context=None):
+        if not context:
+            context = self
+
+        if not self.evaluated_.has_key(context):
+            # FIXME: figure why the call messes up first parameter
+            self.evaluated_[context] = create(
+                property.evaluate_conditionals_in_context(self.all(), context))
+
+        return self.evaluated_[context]
+
+    def propagated (self):
+        if not self.propagated_ps_:
+            self.propagated_ps_ = create (self.propagated_)
+        return self.propagated_ps_
+
+    def add_defaults (self):
+        # FIXME: this caching is invalidated when new features
+        # are declare inside non-root Jamfiles.
+        if not self.defaults_:
+            expanded = feature.add_defaults(self.all_)
+            self.defaults_ = create(expanded)
+        return self.defaults_
+
+    def as_path (self):
+        if not self.as_path_:
+
+            def path_order (p1, p2):
+
+                i1 = p1.feature().implicit()
+                i2 = p2.feature().implicit()
+
+                if i1 != i2:
+                    return i2 - i1
+                else:
+                    return cmp(p1.feature().name(), p2.feature().name())
+
+            # trim redundancy
+            properties = feature.minimize(self.base_)
+                
+            # sort according to path_order
+            properties.sort (path_order)
+                
+            components = []
+            for p in properties:
+                if p.feature().implicit():
+                    components.append(p.value())
+                else:
+                    components.append(p.feature().name() + "-" + p.value())
+
+            self.as_path_ = '/'.join (components)
+
+        return self.as_path_
+
+    def target_path (self):
+        """ Computes the target path that should be used for 
+            target with these properties.
+            Returns a tuple of
+              - the computed path
+              - if the path is relative to build directory, a value of
+                'true'. 
+        """
+        if not self.target_path_:
+            # The <location> feature can be used to explicitly
+            # change the location of generated targets
+            l = self.get ('<location>')
+            if l:
+                computed = l[0]
+                is_relative = False
+
+            else:
+                p = self.as_path ()
+                
+                # Really, an ugly hack. Boost regression test system requires
+                # specific target paths, and it seems that changing it to handle
+                # other directory layout is really hard. For that reason,
+                # we teach V2 to do the things regression system requires.
+                # The value o '<location-prefix>' is predended to the path.
+                prefix = self.get ('<location-prefix>')
+                
+                if prefix:
+                    if len (prefix) > 1:
+                        raise AlreadyDefined ("Two <location-prefix> properties specified: '%s'" % prefix)
+                        
+                    computed = os.path.join(prefix[0], p)
+
+                else:
+                    computed = p
+
+                if not computed:
+                    computed = "."
+
+                is_relative = True
+
+            self.target_path_ = (computed, is_relative)
+
+        return self.target_path_
+                    
+    def add (self, ps):
+        """ Creates a new property set containing the properties in this one,
+            plus the ones of the property set passed as argument.
+        """
+        if not self.added_.has_key(ps):
+            self.added_[ps] = create(self.all_ + ps.all())
+        return self.added_[ps]
+    
+    def add_raw (self, properties):
+        """ Creates a new property set containing the properties in this one,
+            plus the ones passed as argument.
+        """
+        return self.add (create (properties))
+
+    
+    def get (self, feature):
+        """ Returns all values of 'feature'.
+        """
+        if type(feature) == type([]):
+            feature = feature[0]
+        if not isinstance(feature, b2.build.feature.Feature):
+            feature = b2.build.feature.get(feature)
+        
+        if not self.feature_map_:
+            self.feature_map_ = {}
+
+            for v in self.all_:
+                if not self.feature_map_.has_key(v.feature()):
+                    self.feature_map_[v.feature()] = []
+                self.feature_map_[v.feature()].append(v.value())
+        
+        return self.feature_map_.get(feature, [])
+
+    @cached
+    def get_properties(self, feature):
+        """Returns all contained properties associated with 'feature'"""
+
+        if not isinstance(feature, b2.build.feature.Feature):
+            feature = b2.build.feature.get(feature)
+
+        result = []        
+        for p in self.all_:
+            if p.feature() == feature:
+                result.append(p)
+        return result
+    
+    def __contains__(self, item):
+        return item in self.all_set_
+    
diff --git a/jam-files/boost-build/build/readme.txt b/jam-files/boost-build/build/readme.txt
new file mode 100644
index 00000000..c3dddd8d
--- /dev/null
+++ b/jam-files/boost-build/build/readme.txt
@@ -0,0 +1,13 @@
+Copyright 2001, 2002 Dave Abrahams 
+Copyright 2002 Vladimir Prus 
+Distributed under the Boost Software License, Version 1.0. 
+(See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) 
+
+Development code for new build system. To run unit tests for jam code, execute:
+
+  bjam --debug --build-system=test
+
+Comprehensive tests require Python. See ../test/readme.txt
+
+
+
diff --git a/jam-files/boost-build/build/scanner.jam b/jam-files/boost-build/build/scanner.jam
new file mode 100644
index 00000000..d6042ea2
--- /dev/null
+++ b/jam-files/boost-build/build/scanner.jam
@@ -0,0 +1,153 @@
+# Copyright 2003 Dave Abrahams 
+# Copyright 2002, 2003, 2004, 2005 Vladimir Prus 
+# Distributed under the Boost Software License, Version 1.0. 
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) 
+
+#  Implements scanners: objects that compute implicit dependencies for
+#  files, such as includes in C++.
+#
+#  Scanner has a regular expression used to find dependencies, some
+#  data needed to interpret those dependencies (for example, include
+#  paths), and a code which actually established needed relationship
+#  between actual jam targets.
+#
+#  Scanner objects are created by actions, when they try to actualize
+#  virtual targets, passed to 'virtual-target.actualize' method and are
+#  then associated with actual targets. It is possible to use
+#  several scanners for a virtual-target. For example, a single source
+#  might be used by to compile actions, with different include paths.
+#  In this case, two different actual targets will be created, each 
+#  having scanner of its own.
+#
+#  Typically, scanners are created from target type and action's 
+#  properties, using the rule 'get' in this module. Directly creating
+#  scanners is not recommended, because it might create many equvivalent
+#  but different instances, and lead in unneeded duplication of
+#  actual targets. However, actions can also create scanners in a special
+#  way, instead of relying on just target type.
+
+import "class" : new ;
+import property virtual-target property-set ;
+import errors : error ;
+
+#  Base scanner class. 
+class scanner 
+{
+    rule __init__ ( )
+    {
+    }
+    
+    # Returns a pattern to use for scanning
+    rule pattern ( )
+    {
+        error "method must be overriden" ;
+    }
+
+    # Establish necessary relationship between targets,
+    # given actual target beeing scanned, and a list of
+    # pattern matches in that file.
+    rule process ( target : matches * )
+    {
+        error "method must be overriden" ;
+    }        
+}
+
+# Registers a new generator class, specifying a set of 
+# properties relevant to this scanner.  Ctor for that class
+# should have one parameter: list of properties.
+rule register ( scanner-class : relevant-properties * )
+{
+    .registered += $(scanner-class) ;
+    .relevant-properties.$(scanner-class) = $(relevant-properties) ;
+}
+
+# Common scanner class, which can be used when there's only one
+# kind of includes (unlike C, where "" and <> includes have different
+# search paths).
+class common-scanner : scanner 
+{
+    import scanner ;
+    rule __init__ ( includes * )
+    {
+        scanner.__init__ ;
+        self.includes = $(includes) ;
+    }
+            
+    rule process ( target : matches * : binding )
+    {
+        local target_path = [ NORMALIZE_PATH $(binding:D) ] ;
+
+        NOCARE $(matches) ;
+        INCLUDES $(target) : $(matches) ;
+        SEARCH on $(matches) = $(target_path) $(self.includes:G=) ;
+        ISFILE $(matches) ;
+    
+        scanner.propagate $(__name__) : $(matches) : $(target) ;     
+    }
+}
+
+
+# Returns an instance of previously registered scanner,
+# with the specified properties.
+rule get ( scanner-class : property-set ) 
+{
+    if ! $(scanner-class) in $(.registered)
+    {
+        error "attempt to get unregisted scanner" ;
+    }
+    
+    local r = $(.rv-cache.$(property-set)) ;
+    if ! $(r)
+    {
+        r = [ property-set.create 
+            [ property.select $(.relevant-properties.$(scanner-class)) :
+              [ $(property-set).raw ] ] ] ;        
+        .rv-cache.$(property-set) = $(r) ;
+    }
+        
+    if ! $(scanner.$(scanner-class).$(r:J=-))
+    {
+        scanner.$(scanner-class).$(r:J=-) = [ new $(scanner-class) [ $(r).raw ] ] ;
+    }
+    return $(scanner.$(scanner-class).$(r:J=-)) ;    
+}
+
+
+# Installs the specified scanner on actual target 'target'. 
+rule install ( scanner : target 
+    vtarget # virtual target from which 'target' was actualized
+)
+{
+    HDRSCAN on $(target) = [ $(scanner).pattern ] ;
+    SCANNER on $(target) = $(scanner) ;
+    HDRRULE on $(target) = scanner.hdrrule ;
+    
+    # scanner reflects difference in properties affecting    
+    # binding of 'target', which will be known when processing
+    # includes for it, will give information on how to
+    # interpret quoted includes.
+    HDRGRIST on $(target) = $(scanner) ;
+}
+
+# Propagate scanner setting from 'including-target' to 'targets'.
+rule propagate ( scanner : targets * : including-target )
+{
+    HDRSCAN on $(targets) = [ on $(including-target) return $(HDRSCAN) ] ;
+    SCANNER on $(targets) = $(scanner) ;
+    HDRRULE on $(targets) = scanner.hdrrule ;
+    HDRGRIST on $(targets) = [ on $(including-target) return $(HDRGRIST) ] ;
+}
+
+
+rule hdrrule ( target : matches * : binding )
+{
+    local scanner = [ on $(target) return $(SCANNER) ] ;
+    $(scanner).process $(target) : $(matches) : $(binding) ;
+}
+# hdrrule must be available at global scope so that it can be invoked
+# by header scanning
+IMPORT scanner : hdrrule : : scanner.hdrrule ;
+
+
+
+
diff --git a/jam-files/boost-build/build/scanner.py b/jam-files/boost-build/build/scanner.py
new file mode 100644
index 00000000..19f1431d
--- /dev/null
+++ b/jam-files/boost-build/build/scanner.py
@@ -0,0 +1,158 @@
+# Status: ported.
+# Base revision: 45462
+# 
+# Copyright 2003 Dave Abrahams 
+# Copyright 2002, 2003, 2004, 2005 Vladimir Prus 
+# Distributed under the Boost Software License, Version 1.0. 
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) 
+
+#  Implements scanners: objects that compute implicit dependencies for
+#  files, such as includes in C++.
+#
+#  Scanner has a regular expression used to find dependencies, some
+#  data needed to interpret those dependencies (for example, include
+#  paths), and a code which actually established needed relationship
+#  between actual jam targets.
+#
+#  Scanner objects are created by actions, when they try to actualize
+#  virtual targets, passed to 'virtual-target.actualize' method and are
+#  then associated with actual targets. It is possible to use
+#  several scanners for a virtual-target. For example, a single source
+#  might be used by to compile actions, with different include paths.
+#  In this case, two different actual targets will be created, each 
+#  having scanner of its own.
+#
+#  Typically, scanners are created from target type and action's 
+#  properties, using the rule 'get' in this module. Directly creating
+#  scanners is not recommended, because it might create many equvivalent
+#  but different instances, and lead in unneeded duplication of
+#  actual targets. However, actions can also create scanners in a special
+#  way, instead of relying on just target type.
+
+import property
+import bjam
+import os
+from b2.exceptions import *
+from b2.manager import get_manager
+
+def reset ():
+    """ Clear the module state. This is mainly for testing purposes.
+    """
+    global __scanners, __rv_cache, __scanner_cache
+
+    # Maps registered scanner classes to relevant properties
+    __scanners = {}
+    
+    # A cache of scanners.
+    # The key is: class_name.properties_tag, where properties_tag is the concatenation 
+    # of all relevant properties, separated by '-'
+    __scanner_cache = {}
+    
+reset ()
+
+
+def register(scanner_class, relevant_properties):
+    """ Registers a new generator class, specifying a set of 
+        properties relevant to this scanner.  Ctor for that class
+        should have one parameter: list of properties.
+    """
+    __scanners[str(scanner_class)] = relevant_properties
+
+def registered(scanner_class):
+    """ Returns true iff a scanner of that class is registered
+    """
+    return __scanners.has_key(str(scanner_class))
+    
+def get(scanner_class, properties):
+    """ Returns an instance of previously registered scanner
+        with the specified properties.
+    """
+    scanner_name = str(scanner_class)
+    
+    if not registered(scanner_name):
+        raise BaseException ("attempt to get unregisted scanner: %s" % scanner_name)
+
+    relevant_properties = __scanners[scanner_name]
+    r = property.select(relevant_properties, properties)
+
+    scanner_id = scanner_name + '.' + '-'.join(r)
+    
+    if not __scanner_cache.has_key(scanner_name):
+        __scanner_cache[scanner_name] = scanner_class(r)
+
+    return __scanner_cache[scanner_name]
+
+class Scanner:
+    """ Base scanner class.
+    """
+    def __init__ (self):
+        pass
+    
+    def pattern (self):
+        """ Returns a pattern to use for scanning.
+        """
+        raise BaseException ("method must be overriden")
+
+    def process (self, target, matches):
+        """ Establish necessary relationship between targets,
+            given actual target beeing scanned, and a list of
+            pattern matches in that file.
+        """
+        raise BaseException ("method must be overriden")
+
+
+# Common scanner class, which can be used when there's only one
+# kind of includes (unlike C, where "" and <> includes have different
+# search paths).
+class CommonScanner(Scanner):
+
+    def __init__ (self, includes):
+        Scanner.__init__(self)
+        self.includes = includes
+
+    def process(self, target, matches, binding):
+
+        target_path = os.path.normpath(os.path.dirname(binding[0]))
+        bjam.call("mark-included", target, matches)
+
+        get_manager().engine().set_target_variable(matches, "SEARCH",
+                                                   [target_path] + self.includes)
+        get_manager().scanners().propagate(self, matches)
+
+class ScannerRegistry:
+    
+    def __init__ (self, manager):
+        self.manager_ = manager
+        self.count_ = 0
+        self.exported_scanners_ = {}
+
+    def install (self, scanner, target, vtarget):
+        """ Installs the specified scanner on actual target 'target'. 
+            vtarget: virtual target from which 'target' was actualized.
+        """
+        engine = self.manager_.engine()
+        engine.set_target_variable(target, "HDRSCAN", scanner.pattern())
+        if not self.exported_scanners_.has_key(scanner):
+            exported_name = "scanner_" + str(self.count_)
+            self.count_ = self.count_ + 1
+            self.exported_scanners_[scanner] = exported_name
+            bjam.import_rule("", exported_name, scanner.process)
+        else:
+            exported_name = self.exported_scanners_[scanner]
+
+        engine.set_target_variable(target, "HDRRULE", exported_name)
+        
+        # scanner reflects difference in properties affecting    
+        # binding of 'target', which will be known when processing
+        # includes for it, will give information on how to
+        # interpret quoted includes.
+        engine.set_target_variable(target, "HDRGRIST", str(id(scanner)))
+        pass
+
+    def propagate(self, scanner, targets):
+        engine = self.manager_.engine()
+        engine.set_target_variable(targets, "HDRSCAN", scanner.pattern())
+        engine.set_target_variable(targets, "HDRRULE",
+                                   self.exported_scanners_[scanner])
+        engine.set_target_variable(targets, "HDRGRIST", str(id(scanner)))
+
diff --git a/jam-files/boost-build/build/targets.jam b/jam-files/boost-build/build/targets.jam
new file mode 100644
index 00000000..a70532ce
--- /dev/null
+++ b/jam-files/boost-build/build/targets.jam
@@ -0,0 +1,1659 @@
+# Copyright Vladimir Prus 2002.
+# Copyright Rene Rivera 2006.
+#
+# Distributed under the Boost Software License, Version 1.0.
+#    (See accompanying file LICENSE_1_0.txt or copy at
+#          http://www.boost.org/LICENSE_1_0.txt)
+
+# Supports 'abstract' targets, which are targets explicitly defined in a
+# Jamfile.
+#
+# Abstract targets are represented by classes derived from 'abstract-target'
+# class. The first abstract target is 'project-target', which is created for
+# each Jamfile, and can be obtained by the 'target' rule in the Jamfile's module
+# (see project.jam).
+#
+# Project targets keep a list of 'main-target' instances. A main target is what
+# the user explicitly defines in a Jamfile. It is possible to have several
+# definitions for a main target, for example to have different lists of sources
+# for different platforms. So, main targets keep a list of alternatives.
+#
+# Each alternative is an instance of 'abstract-target'. When a main target
+# subvariant is defined by some rule, that rule will decide what class to use,
+# create an instance of that class and add it to the list of alternatives for
+# the main target.
+#
+# Rules supplied by the build system will use only targets derived from
+# 'basic-target' class, which will provide some default behaviour. There will be
+# different classes derived from it such as 'make-target', created by the 'make'
+# rule, and 'typed-target', created by rules such as 'exe' and 'lib'.
+
+#
+#                         +------------------------+
+#                         |abstract-target         |
+#                         +========================+
+#                         |name                    |
+#                         |project                 |
+#                         |                        |
+#                         |generate(properties) = 0|
+#                         +-----------+------------+
+#                                     |
+#                                     ^
+#                                    / \
+#                                   +-+-+
+#                                     |
+#                                     |
+#            +------------------------+------+------------------------------+
+#            |                               |                              |
+#            |                               |                              |
+# +----------+-----------+            +------+------+                +------+-------+
+# | project-target       |            | main-target |                | basic-target |
+# +======================+ 1        * +=============+  alternatives  +==============+
+# | generate(properties) |o-----------+ generate    |<>------------->| generate     |
+# | main-target          |            +-------------+                | construct = 0|
+# +----------------------+                                           +--------------+
+#                                                                           |
+#                                                                           ^
+#                                                                          / \
+#                                                                         +-+-+
+#                                                                           |
+#                                                                           |
+#                 ...--+----------------+------------------+----------------+---+
+#                      |                |                  |                    |
+#                      |                |                  |                    |
+#               ... ---+-----+   +------+-------+   +------+------+    +--------+-----+
+#                            |   | typed-target |   | make-target |    | stage-target |
+#                            .   +==============+   +=============+    +==============+
+#                            .   | construct    |   | construct   |    | construct    |
+#                                +--------------+   +-------------+    +--------------+
+
+import assert ;
+import "class" : new ;
+import errors ;
+import feature ;
+import indirect ;
+import path ;
+import property ;
+import property-set ;
+import sequence ;
+import set ;
+import toolset ;
+import build-request ;
+
+
+# Base class for all abstract targets.
+#
+class abstract-target
+{
+    import project ;
+    import assert ;
+    import "class" ;
+    import errors ;
+
+    rule __init__ ( name  # Name of the target in Jamfile.
+        : project-target  # The project target to which this one belongs.
+    )
+    {
+        # Note: it might seem that we don't need either name or project at all.
+        # However, there are places where we really need it. One example is
+        # error messages which should name problematic targets. Another is
+        # setting correct paths for sources and generated files.
+
+        self.name = $(name) ;
+        self.project = $(project-target) ;
+        self.location = [ errors.nearest-user-location ] ;
+    }
+
+    # Returns the name of this target.
+    rule name ( )
+    {
+        return $(self.name) ;
+    }
+
+    # Returns the project for this target.
+    rule project ( )
+    {
+        return $(self.project) ;
+    }
+
+    # Return the location where the target was declared.
+    rule location ( )
+    {
+        return $(self.location) ;
+    }
+
+    # Returns a user-readable name for this target.
+    rule full-name ( )
+    {
+        local location = [ $(self.project).get location ] ;
+        return $(location)/$(self.name) ;
+    }
+
+    # Generates virtual targets for this abstract target using the specified
+    # properties, unless a different value of some feature is required by the
+    # target.
+    # On success, returns:
+    # - a property-set with the usage requirements to be applied to dependants
+    # - a list of produced virtual targets, which may be empty.
+    # If 'property-set' is empty, performs the default build of this target, in
+    # a way specific to the derived class.
+    #
+    rule generate ( property-set )
+    {
+        errors.error "method should be defined in derived classes" ;
+    }
+
+    rule rename ( new-name )
+    {
+        self.name = $(new-name) ;
+    }
+}
+
+
+if --debug-building in [ modules.peek : ARGV ]
+{
+    modules.poke : .debug-building : true ;
+}
+
+
+rule indent ( )
+{
+    return $(.indent:J="") ;
+}
+
+
+rule increase-indent ( )
+{
+    .indent += "    " ;
+}
+
+
+rule decrease-indent ( )
+{
+    .indent = $(.indent[2-]) ;
+}
+
+
+#  Project target class (derived from 'abstract-target').
+#
+#  This class has the following responsibilities:
+#  - Maintaining a list of main targets in this project and building them.
+#
+#  Main targets are constructed in two stages:
+#  - When Jamfile is read, a number of calls to 'add-alternative' is made. At
+#    that time, alternatives can also be renamed to account for inline targets.
+#  - The first time 'main-target' or 'has-main-target' rule is called, all
+#    alternatives are enumerated and main targets are created.
+#
+class project-target : abstract-target
+{
+    import project ;
+    import targets ;
+    import path ;
+    import print ;
+    import property-set ;
+    import set ;
+    import sequence ;
+    import "class" : new ;
+    import errors ;
+
+    rule __init__ ( name : project-module parent-project ?
+        : requirements * : default-build * )
+    {
+        abstract-target.__init__ $(name) : $(__name__) ;
+
+        self.project-module = $(project-module) ;
+        self.location = [ project.attribute $(project-module) location ] ;
+        self.requirements = $(requirements) ;
+        self.default-build = $(default-build) ;
+
+        if $(parent-project)
+        {
+            inherit $(parent-project) ;
+        }
+    }
+
+    # This is needed only by the 'make' rule. Need to find the way to make
+    # 'make' work without this method.
+    #
+    rule project-module ( )
+    {
+        return $(self.project-module) ;
+    }
+
+    rule get ( attribute )
+    {
+        return [ project.attribute $(self.project-module) $(attribute) ] ;
+    }
+
+    rule build-dir ( )
+    {
+        if ! $(self.build-dir)
+        {
+            self.build-dir = [ get build-dir ] ;
+            if ! $(self.build-dir)
+            {
+                self.build-dir = [ path.join [ $(self.project).get location ]
+                    bin ] ;
+            }
+        }
+        return $(self.build-dir) ;
+    }
+
+    # Generates all possible targets contained in this project.
+    #
+    rule generate ( property-set * )
+    {
+        if [ modules.peek : .debug-building ]
+        {
+            ECHO [ targets.indent ] "building project" [ name ] " ('$(__name__)') with" [ $(property-set).raw ] ;
+            targets.increase-indent ;
+        }
+
+        local usage-requirements = [ property-set.empty ] ;
+        local targets ;
+
+        for local t in [ targets-to-build ]
+        {
+            local g = [ $(t).generate $(property-set) ] ;
+            usage-requirements = [ $(usage-requirements).add $(g[1]) ] ;
+            targets += $(g[2-]) ;
+        }
+        targets.decrease-indent ;
+        return $(usage-requirements) [ sequence.unique $(targets) ] ;
+    }
+
+    # Computes and returns a list of abstract-target instances which must be
+    # built when this project is built.
+    #
+    rule targets-to-build ( )
+    {
+        local result ;
+
+        if ! $(self.built-main-targets)
+        {
+            build-main-targets ;
+        }
+
+        # Collect all main targets here, except for "explicit" ones.
+        for local t in $(self.main-targets)
+        {
+            if ! [ $(t).name ] in $(self.explicit-targets)
+            {
+                result += $(t) ;
+            }
+        }
+
+        # Collect all projects referenced via "projects-to-build" attribute.
+        local self-location = [ get location ] ;
+        for local pn in [ get projects-to-build ]
+        {
+            result += [ find $(pn)/ ] ;
+        }
+
+        return $(result) ;
+    }
+
+    # Add 'target' to the list of targets in this project that should be build
+    # only by explicit request
+    #
+    rule mark-target-as-explicit ( target-name * )
+    {
+        # Record the name of the target, not instance, since this rule is called
+        # before main target instances are created.
+        self.explicit-targets += $(target-name) ;
+    }
+    
+    rule mark-target-as-always ( target-name * )
+    {
+        # Record the name of the target, not instance, since this rule is called
+        # before main target instances are created.
+        self.always-targets += $(target-name) ;
+    }
+
+    # Add new target alternative
+    #
+    rule add-alternative ( target-instance )
+    {
+        if $(self.built-main-targets)
+        {
+            errors.error add-alternative called when main targets are already
+                created. : in project [ full-name ] ;
+        }
+        self.alternatives += $(target-instance) ;
+    }
+
+    # Returns a 'main-target' class instance corresponding to 'name'.
+    #
+    rule main-target ( name )
+    {
+        if ! $(self.built-main-targets)
+        {
+            build-main-targets ;
+        }
+        return $(self.main-target.$(name)) ;
+    }
+
+    # Returns whether a main target with the specified name exists.
+    #
+    rule has-main-target ( name )
+    {
+        if ! $(self.built-main-targets)
+        {
+            build-main-targets ;
+        }
+
+        if $(self.main-target.$(name))
+        {
+            return true ;
+        }
+    }
+
+    # Worker function for the find rule not implementing any caching and simply
+    # returning nothing in case the target can not be found.
+    #
+    rule find-really ( id )
+    {
+        local result ;
+        local current-location = [ get location ] ;
+
+        local split = [ MATCH (.*)//(.*) : $(id) ] ;
+        local project-part = $(split[1]) ;
+        local target-part = $(split[2]) ;
+
+        local extra-error-message ;
+        if $(project-part)
+        {
+            # There is an explicitly specified project part in id. Looks up the
+            # project and passes the request to it.
+            local pm = [ project.find $(project-part) : $(current-location) ] ;
+            if $(pm)
+            {
+                project-target = [ project.target $(pm) ] ;
+                result = [ $(project-target).find $(target-part) : no-error ] ;
+            }
+            else
+            {
+                # TODO: This extra error message will not get displayed most
+                # likely due to some buggy refactoring. Refactor the code so the
+                # message gets diplayed again.
+                extra-error-message = error: could not find project
+                    '$(project-part)' ;
+            }
+        }
+        else
+        {
+            # Interpret target-name as name of main target. Need to do this
+            # before checking for file. Consider the following scenario with a
+            # toolset not modifying its executable's names, e.g. gcc on
+            # Unix-like platforms:
+            #
+            #  exe test : test.cpp ;
+            #  install s : test : <location>. ;
+            #
+            # After the first build we would have a target named 'test' in the
+            # Jamfile and a file named 'test' on the disk. We need the target to
+            # override the file.
+            result = [ main-target $(id) ] ;
+            
+            # Interpret id as an existing file reference.
+            if ! $(result)
+            {
+                result = [ new file-reference [ path.make $(id) ] :
+                    $(self.project) ] ;
+                if ! [ $(result).exists ]
+                {
+                    result = ;
+                }
+            }
+
+            # Interpret id as project-id.
+            if ! $(result)
+            {
+                local project-module = [ project.find $(id) :
+                    $(current-location) ] ;
+                if $(project-module)
+                {
+                    result = [ project.target $(project-module) ] ;
+                }
+            }
+        }
+
+        return $(result) ;
+    }
+
+    # Find and return the target with the specified id, treated relative to
+    # self. Id may specify either a target or a file name with the target taking
+    # priority. May report an error or return nothing if the target is not found
+    # depending on the 'no-error' parameter.
+    #
+    rule find ( id : no-error ? )
+    {
+        local v = $(.id.$(id)) ;
+        if ! $(v)
+        {
+            v = [ find-really $(id) ] ;
+            if ! $(v)
+            {
+                v = none ;
+            }
+            .id.$(id) = $(v) ;
+        }
+
+        if $(v) != none
+        {
+            return $(v) ;
+        }
+        else
+        {
+            if ! $(no-error)
+            {
+                local current-location = [ get location ] ;
+                ECHO "error: Unable to find file or target named" ;
+                ECHO "error:     '$(id)'" ;
+                ECHO "error: referred from project at" ;
+                ECHO "error:     '$(current-location)'" ;
+                ECHO $(extra-error-message) ;
+                EXIT ;
+            }
+        }
+    }
+
+    rule build-main-targets ( )
+    {
+        self.built-main-targets = true ;
+        for local a in $(self.alternatives)
+        {
+            local name = [ $(a).name ] ;
+            local target = $(self.main-target.$(name)) ;
+            if ! $(target)
+            {
+                local t = [ new main-target $(name) : $(self.project) ] ;
+                self.main-target.$(name) = $(t) ;
+                self.main-targets += $(t) ;
+                target = $(self.main-target.$(name)) ;
+            }
+            
+            if $(name) in $(self.always-targets)
+            {
+                $(a).always ;
+            }                
+
+            $(target).add-alternative $(a) ;
+        }
+    }
+
+    # Accessor, add a constant.
+    #
+    rule add-constant (
+        name       # Variable name of the constant.
+        : value +  # Value of the constant.
+        : type ?   # Optional type of value.
+        )
+    {
+        switch $(type)
+        {
+            case path :
+              local r ;
+              for local v in $(value)
+              {
+                local l = $(self.location) ;
+                if ! $(l)
+                {
+                    # Project corresponding to config files do not have 
+                    # 'location' attribute, but do have source location.
+                    # It might be more reasonable to make every project have
+                    # a location and use some other approach to prevent buildable
+                    # targets in config files, but that's for later.
+                    l = [ get source-location ] ;
+                }                
+                v = [ path.root [ path.make $(v) ] $(l) ] ;
+                # Now make the value absolute path.
+                v = [ path.root $(v) [ path.pwd ] ] ;
+                # Constants should be in platform-native form.
+                v = [ path.native $(v) ] ;
+                r += $(v) ;
+              }
+              value = $(r) ;
+        }
+        if ! $(name) in $(self.constants)
+        {
+            self.constants += $(name) ;
+        }
+        self.constant.$(name) = $(value) ;
+        # Inject the constant in the scope of the Jamroot module.
+        modules.poke $(self.project-module) : $(name) : $(value) ;
+    }
+
+    rule inherit ( parent )
+    {
+        for local c in [ modules.peek $(parent) : self.constants ]
+        {
+            # No need to pass the type. Path constants were converted to
+            # absolute paths already by parent.
+            add-constant $(c)
+              : [ modules.peek $(parent) : self.constant.$(c) ] ;
+        }
+
+        # Import rules from parent.
+        local this-module = [ project-module ] ;
+        local parent-module = [ $(parent).project-module ] ;
+        # Do not import rules coming from 'project-rules' as they must be
+        # imported localized.
+        local user-rules = [ set.difference
+            [ RULENAMES $(parent-module) ] :
+            [ RULENAMES project-rules ] ] ;
+        IMPORT $(parent-module) : $(user-rules) : $(this-module) : $(user-rules) ;
+        EXPORT $(this-module) : $(user-rules) ;
+    }
+}
+
+
+# Helper rules to detect cycles in main target references.
+#
+local rule start-building ( main-target-instance )
+{
+    if $(main-target-instance) in $(.targets-being-built)
+    {
+        local names ;
+        for local t in $(.targets-being-built) $(main-target-instance)
+        {
+            names += [ $(t).full-name ] ;
+        }
+
+        errors.error "Recursion in main target references"
+          : "the following target are being built currently:"
+          : $(names) ;
+    }
+    .targets-being-built += $(main-target-instance) ;
+}
+
+
+local rule end-building ( main-target-instance )
+{
+    .targets-being-built = $(.targets-being-built[1--2]) ;
+}
+
+
+# A named top-level target in Jamfile.
+#
+class main-target : abstract-target
+{
+    import assert ;
+    import errors ;
+    import feature ;
+    import print ;
+    import property-set ;
+    import sequence ;
+    import targets : start-building end-building ;
+
+    rule __init__ ( name : project )
+    {
+        abstract-target.__init__ $(name) : $(project) ;
+    }
+
+    # Add a new alternative for this target
+    rule add-alternative ( target )
+    {
+        local d = [ $(target).default-build ] ;
+        if $(self.alternatives) && ( $(self.default-build) != $(d) )
+        {
+            errors.error "default build must be identical in all alternatives"
+              : "main target is" [ full-name ]
+              : "with" [ $(d).raw ]
+              : "differing from previous default build" [ $(self.default-build).raw ] ;
+        }
+        else
+        {
+            self.default-build = $(d) ;
+        }
+        self.alternatives += $(target) ;
+    }
+
+    # Returns the best viable alternative for this property-set. See the
+    # documentation for selection rules.
+    #
+    local rule select-alternatives ( property-set debug ? )
+    {
+        # When selecting alternatives we have to consider defaults, for example:
+        #    lib l : l.cpp : <variant>debug ;
+        #    lib l : l_opt.cpp : <variant>release ;
+        # won't work unless we add default value <variant>debug.
+        property-set = [ $(p).add-defaults ] ;
+
+        # The algorithm: we keep the current best viable alternative. When we've
+        # got a new best viable alternative, we compare it with the current one.
+
+        local best ;
+        local best-properties ;
+
+        if $(self.alternatives[2-])
+        {
+            local bad ;
+            local worklist = $(self.alternatives) ;
+            while $(worklist) && ! $(bad)
+            {
+                local v = $(worklist[1]) ;
+                local properties = [ $(v).match $(property-set) $(debug) ] ;
+
+                if $(properties) != no-match
+                {
+                    if ! $(best)
+                    {
+                        best = $(v) ;
+                        best-properties = $(properties) ;
+                    }
+                    else
+                    {
+                        if $(properties) = $(best-properties)
+                        {
+                            bad = true ;
+                        }
+                        else if $(properties) in $(best-properties)
+                        {
+                            # Do nothing, this alternative is worse
+                        }
+                        else if $(best-properties) in $(properties)
+                        {
+                            best = $(v) ;
+                            best-properties = $(properties) ;
+                        }
+                        else
+                        {
+                            bad = true ;
+                        }
+                    }
+                }
+                worklist = $(worklist[2-]) ;
+            }
+            if ! $(bad)
+            {
+                return $(best) ;
+            }
+        }
+        else
+        {
+            return $(self.alternatives) ;
+        }
+    }
+
+    rule apply-default-build ( property-set )
+    {
+        return [ targets.apply-default-build $(property-set) 
+          : $(self.default-build) ] ;
+    }
+
+    # Select an alternative for this main target, by finding all alternatives
+    # which requirements are satisfied by 'properties' and picking the one with
+    # the longest requirements set. Returns the result of calling 'generate' on
+    # that alternative.
+    #
+    rule generate ( property-set )
+    {
+        start-building $(__name__) ;
+
+        # We want composite properties in build request act as if all the
+        # properties it expands too are explicitly specified.
+        property-set = [ $(property-set).expand ] ;
+
+        local all-property-sets = [ apply-default-build $(property-set) ] ;
+        local usage-requirements = [ property-set.empty ] ;
+        local result ;
+        for local p in $(all-property-sets)
+        {
+            local r = [ generate-really $(p) ] ;
+            if $(r)
+            {
+                usage-requirements = [ $(usage-requirements).add $(r[1]) ] ;
+                result += $(r[2-]) ;
+            }
+        }
+        end-building $(__name__) ;
+        return $(usage-requirements) [ sequence.unique $(result) ] ;
+    }
+
+    # Generates the main target with the given property set and returns a list
+    # which first element is property-set object containing usage-requirements
+    # of generated target and with generated virtual target in other elements.
+    # It is possible that no targets are generated.
+    #
+    local rule generate-really ( property-set )
+    {
+        local best-alternatives = [ select-alternatives $(property-set) ] ;
+        if ! $(best-alternatives)
+        {
+            ECHO "error: No best alternative for" [ full-name ] ;
+            select-alternatives $(property-set) debug ;
+            return [ property-set.empty ] ;
+        }
+        else
+        {
+            # Now return virtual targets for the only alternative.
+            return [ $(best-alternatives).generate $(property-set) ] ;
+        }
+    }
+
+    rule rename ( new-name )
+    {
+        abstract-target.rename $(new-name) ;
+        for local a in $(self.alternatives)
+        {
+            $(a).rename $(new-name) ;
+        }
+    }
+}
+
+
+# Abstract target refering to a source file. This is an artificial entity
+# allowing sources to a target to be represented using a list of abstract target
+# instances.
+#
+class file-reference : abstract-target
+{
+    import virtual-target ;
+    import property-set ;
+    import path ;
+
+    rule __init__ ( file : project )
+    {
+        abstract-target.__init__ $(file) : $(project) ;
+    }
+
+    rule generate ( properties )
+    {
+        return [ property-set.empty ] [ virtual-target.from-file $(self.name) :
+            [ location ] : $(self.project) ] ;
+    }
+
+    # Returns true if the referred file really exists.
+    rule exists ( )
+    {
+        location ;
+        return $(self.file-path) ;
+    }
+
+    # Returns the location of target. Needed by 'testing.jam'.
+    rule location ( )
+    {
+        if ! $(self.file-location)
+        {
+            local source-location = [ $(self.project).get source-location ] ;
+            for local src-dir in $(source-location)
+            {
+                if ! $(self.file-location)
+                {
+                    local location = [ path.root $(self.name) $(src-dir) ] ;
+                    if [ CHECK_IF_FILE [ path.native $(location) ] ]
+                    {
+                         self.file-location = $(src-dir) ;
+                         self.file-path = $(location) ;
+                    }
+                }
+            }
+        }
+        return $(self.file-location) ;
+    }
+}
+
+
+# Given a target-reference, made in context of 'project', returns the
+# abstract-target instance that is referred to, as well as properties explicitly
+# specified for this reference.
+#
+rule resolve-reference ( target-reference : project )
+{
+    # Separate target name from properties override.
+    local split = [ MATCH "^([^<]*)(/(<.*))?$" : $(target-reference) ] ;
+    local id = $(split[1]) ;
+    local sproperties = ;
+    if $(split[3])
+    {
+        sproperties = [ property.make [ feature.split $(split[3]) ] ] ;
+        sproperties = [ feature.expand-composites $(sproperties) ] ;
+    }
+
+    # Find the target.
+    local target = [ $(project).find $(id) ] ;
+
+    return $(target) [ property-set.create $(sproperties) ] ;
+}
+
+
+# Attempts to generate the target given by target reference, which can refer
+# both to a main target or to a file. Returns a list consisting of
+# - usage requirements
+# - generated virtual targets, if any
+#
+rule generate-from-reference (
+    target-reference  # Target reference.
+    : project         # Project where the reference is made.
+    : property-set    # Properties of the main target that makes the reference.
+)
+{
+    local r = [ resolve-reference $(target-reference) : $(project) ] ;
+    local target = $(r[1]) ;
+    local sproperties = $(r[2]) ;
+
+    # Take properties which should be propagated and refine them with
+    # source-specific requirements.
+    local propagated = [ $(property-set).propagated ] ;
+    local rproperties = [ $(propagated).refine $(sproperties) ] ;
+    if $(rproperties[1]) = "@error"
+    {
+        errors.error
+            "When building" [ full-name ] " with properties " $(properties) :
+            "Invalid properties specified for " $(source) ":"
+            $(rproperties[2-]) ;
+    }
+    return [ $(target).generate $(rproperties) ] ;
+}
+
+rule apply-default-build ( property-set : default-build )
+{
+    # 1. First, see what properties from default-build are already present
+    # in property-set.
+
+    local raw = [ $(property-set).raw ] ;
+    local specified-features = $(raw:G) ;
+
+    local defaults-to-apply ;
+    for local d in [ $(default-build).raw ]
+    {
+        if ! $(d:G) in $(specified-features)
+        {
+            defaults-to-apply += $(d) ;
+        }
+    }
+
+    # 2. If there are any defaults to be applied, form a new build request.
+    # Pass it through to 'expand-no-defaults' since default-build might
+    # contain "release debug" resulting in two property-sets.
+    local result ;
+    if $(defaults-to-apply)
+    {
+        properties = [
+          build-request.expand-no-defaults
+
+            # We have to compress subproperties here to prevent property
+            # lists like:
+            #
+            #    <toolset>msvc <toolset-msvc:version>7.1 <threading>multi
+            #
+            # from being expanded into:
+            #
+            #    <toolset-msvc:version>7.1/<threading>multi
+            #    <toolset>msvc/<toolset-msvc:version>7.1/<threading>multi
+            #
+            # due to a cross-product property combination. That may be an
+            # indication that build-request.expand-no-defaults is the wrong
+            # rule to use here.
+            [ feature.compress-subproperties $(raw) ]
+              $(defaults-to-apply)
+        ] ;
+
+        if $(properties)
+        {
+            for local p in $(properties)
+            {
+                result += [ property-set.create
+                    [ feature.expand [ feature.split $(p) ] ] ] ;
+            }
+        }
+        else
+        {
+            result = [ property-set.empty ] ;
+        }
+    }
+    else
+    {
+        result = $(property-set) ;
+    }
+    return $(result) ;
+}
+
+
+# Given a build request and requirements, return properties common to dependency
+# build request and target requirements.
+#
+# TODO: Document exactly what 'common properties' are, whether they should
+# include default property values, whether they should contain any conditional
+# properties or should those be already processed, etc. See whether there are
+# any differences between use cases with empty and non-empty build-request as
+# well as with requirements containing and those not containing any non-free
+# features.
+#
+rule common-properties ( build-request requirements )
+{
+    # For optimization, we add free requirements directly, without using a
+    # complex algorithm. This gives the complex algorithm a better chance of
+    # caching results.
+    local free = [ $(requirements).free ] ;
+    local non-free = [ property-set.create [ $(requirements).base ]
+        [ $(requirements).incidental ] ] ;
+
+    local key = .rp.$(build-request)-$(non-free) ;
+    if ! $($(key))
+    {
+        $(key) = [ common-properties2 $(build-request) $(non-free) ] ;
+    }
+    result = [ $($(key)).add-raw $(free) ] ;
+}
+
+
+# Given a 'context' -- a set of already present properties, and 'requirements',
+# decide which extra properties should be applied to 'context'. For conditional
+# requirements, this means evaluating the condition. For indirect conditional
+# requirements, this means calling a rule. Ordinary requirements are always
+# applied.
+#
+# Handles the situation where evaluating one conditional requirement affects
+# conditions of another conditional requirements, such as:
+#     <toolset>gcc:<variant>release <variant>release:<define>RELEASE
+#
+# If 'what' is 'refined' returns context refined with new requirements. If
+# 'what' is 'added' returns just the requirements to be applied.
+#
+rule evaluate-requirements ( requirements : context : what )
+{
+    # Apply non-conditional requirements. It is possible that further
+    # conditional requirement change a value set by non-conditional
+    # requirements. For example:
+    #
+    #    exe a : a.cpp : <threading>single <toolset>foo:<threading>multi ;
+    #
+    # I am not sure if this should be an error, or not, especially given that
+    #
+    #    <threading>single
+    #
+    # might come from project's requirements.
+
+    local unconditional = [ feature.expand [ $(requirements).non-conditional ] ] ;
+ 
+    local raw = [ $(context).raw ] ;
+    raw = [ property.refine $(raw) : $(unconditional) ] ;
+
+    # We have collected properties that surely must be present in common
+    # properties. We now try to figure out what other properties should be added
+    # in order to satisfy rules (4)-(6) from the docs.
+
+    local conditionals = [ $(requirements).conditional ] ;
+    # The 'count' variable has one element for each conditional feature and for
+    # each occurrence of '<indirect-conditional>' feature. It is used as a loop
+    # counter: for each iteration of the loop before we remove one element and
+    # the property set should stabilize before we are done. It is assumed that
+    # #conditionals iterations should be enough for properties to propagate
+    # along conditions in any direction.
+    local count = $(conditionals)
+                  [ $(requirements).get <conditional> ]
+                  and-once-more ;
+
+    local added-requirements ;
+
+    local current = $(raw) ;
+
+    # It is assumed that ordinary conditional requirements can not add
+    # <conditional> properties (a.k.a. indirect conditional properties), and
+    # that rules referred to by <conditional> properties can not add new
+    # <conditional> properties. So the list of indirect conditionals does not
+    # change.
+    local indirect = [ $(requirements).get <conditional> ] ;
+    indirect = [ MATCH ^@(.*) : $(indirect) ] ;
+
+    local ok ;
+    while $(count)
+    {
+        # Evaluate conditionals in context of current properties.
+        local e = [ property.evaluate-conditionals-in-context $(conditionals)
+            : $(current) ] ;
+
+        # Evaluate indirect conditionals.
+        for local i in $(indirect)
+        {
+            e += [ indirect.call $(i) $(current) ] ;
+        }
+
+        if $(e) = $(added-requirements)
+        {
+            # If we got the same result, we have found the final properties.
+            count = ;
+            ok = true ;
+        }
+        else
+        {
+            # Oops, conditional evaluation results have changed. Also 'current'
+            # contains leftovers from a previous evaluation. Recompute 'current'
+            # using initial properties and conditional requirements.
+            added-requirements = $(e) ;
+            current = [ property.refine $(raw) : [ feature.expand $(e) ] ] ;
+        }
+        count = $(count[2-]) ;
+    }
+    if ! $(ok)
+    {
+        errors.error "Can not evaluate conditional properties " $(conditionals) ;
+    }
+
+    if $(what) = added
+    {
+        return [ property-set.create $(unconditional) $(added-requirements) ] ;
+    }
+    else if $(what) = refined
+    {
+        return [ property-set.create $(current) ] ;
+    }
+    else
+    {
+        errors.error "Invalid value of the 'what' parameter." ;
+    }
+}
+
+
+rule common-properties2 ( build-request requirements )
+{
+    # This guarantees that default properties are present in the result, unless
+    # they are overriden by some requirement. FIXME: There is possibility that
+    # we have added <foo>bar, which is composite and expands to <foo2>bar2, but
+    # default value of <foo2> is not bar2, in which case it is not clear what to
+    # do.
+    #
+    build-request = [ $(build-request).add-defaults ] ;
+    # Features added by 'add-default' can be composite and expand to features
+    # without default values -- so they are not added yet. It could be clearer/
+    # /faster to expand only newly added properties but that is not critical.
+    build-request = [ $(build-request).expand ] ;
+
+    return [ evaluate-requirements $(requirements) : $(build-request) :
+        refined ] ;
+}
+
+rule push-target ( target )
+{
+    .targets = $(target) $(.targets) ;
+}
+
+rule pop-target ( )
+{
+    .targets = $(.targets[2-]) ;
+}
+
+# Return the metatarget that is currently being generated.
+rule current ( )
+{
+    return $(.targets[1]) ;
+}
+
+
+# Implements the most standard way of constructing main target alternative from
+# sources. Allows sources to be either file or other main target and handles
+# generation of those dependency targets.
+#
+class basic-target : abstract-target
+{
+    import build-request ;
+    import build-system ;
+    import "class" : new ;
+    import errors ;
+    import feature ;
+    import property ;
+    import property-set ;
+    import sequence ;
+    import set ;
+    import targets ;
+    import virtual-target ;
+
+    rule __init__ ( name : project : sources * : requirements *
+        : default-build * : usage-requirements * )
+    {
+        abstract-target.__init__ $(name) : $(project) ;
+
+        self.sources = $(sources) ;
+        if ! $(requirements) {
+            requirements = [ property-set.empty ] ;
+        }
+        self.requirements = $(requirements) ;
+        if ! $(default-build)
+        {
+            default-build = [ property-set.empty ] ;
+        }
+        self.default-build = $(default-build) ;
+        if ! $(usage-requirements)
+        {
+            usage-requirements = [ property-set.empty ] ;
+        }
+        self.usage-requirements = $(usage-requirements) ;
+
+        if $(sources:G)
+        {
+            errors.user-error properties found in the 'sources' parameter for
+                [ full-name ] ;
+        }
+    }
+    
+    rule always ( )
+    {
+        self.always = 1 ;
+    }
+    
+    # Returns the list of abstract-targets which are used as sources. The extra
+    # properties specified for sources are not represented. The only user for
+    # this rule at the moment is the "--dump-tests" feature of the test system.
+    #
+    rule sources ( )
+    {
+        if ! $(self.source-targets)
+        {
+            for local s in $(self.sources)
+            {
+                self.source-targets +=
+                  [ targets.resolve-reference $(s) : $(self.project) ] ;
+            }
+        }
+        return $(self.source-targets) ;
+    }
+
+    rule requirements ( )
+    {
+        return $(self.requirements) ;
+    }
+
+    rule default-build ( )
+    {
+        return $(self.default-build) ;
+    }
+
+    # Returns the alternative condition for this alternative, if the condition
+    # is satisfied by 'property-set'.
+    #
+    rule match ( property-set debug ? )
+    {
+        # The condition is composed of all base non-conditional properties. It
+        # is not clear if we should expand 'self.requirements' or not. For one
+        # thing, it would be nice to be able to put
+        #    <toolset>msvc-6.0
+        # in requirements. On the other hand, if we have <variant>release as a
+        # condition it does not make sense to require <optimization>full to be
+        # in the build request just to select this variant.
+        local bcondition = [ $(self.requirements).base ] ;
+        local ccondition = [ $(self.requirements).conditional ] ;
+        local condition = [ set.difference $(bcondition) : $(ccondition) ] ;
+        if $(debug)
+        {
+            ECHO "    next alternative: required properties:" $(condition:E=(empty)) ;
+        }
+
+        if $(condition) in [ $(property-set).raw ]
+        {
+            if $(debug)
+            {
+                ECHO "        matched" ;
+            }
+            return $(condition) ;
+        }
+        else
+        {
+            if $(debug)
+            {
+                ECHO "        not matched" ;
+            }
+            return no-match ;
+        }
+    }
+
+    # Takes a target reference, which might be either target id or a dependency
+    # property, and generates that target using 'property-set' as build request.
+    #
+    # The results are added to the variable called 'result-var'. Usage
+    # requirements are added to the variable called 'usage-requirements-var'.
+    #
+    rule generate-dependencies ( dependencies * : property-set
+        : result-var usage-requirements-var )
+    {
+        for local dependency in $(dependencies)
+        {
+            local grist = $(dependency:G) ;
+            local id = $(dependency:G=) ;
+
+            local result = [ targets.generate-from-reference $(id) :
+                $(self.project) : $(property-set) ] ;
+
+            $(result-var) += $(result[2-]:G=$(grist)) ;
+            $(usage-requirements-var) += [ $(result[1]).raw ] ;
+        }
+    }
+
+    # Determines final build properties, generates sources, and calls
+    # 'construct'. This method should not be overridden.
+    #
+    rule generate ( property-set )
+    {
+        if [ modules.peek : .debug-building ]
+        {
+            ECHO ;
+            local fn = [ full-name ] ;
+            ECHO [ targets.indent ] "Building target '$(fn)'" ;
+            targets.increase-indent ;
+            ECHO [ targets.indent ] "Build request: " $(property-set) [ $(property-set).raw ] ;
+            local cf = [ build-system.command-line-free-features ] ;
+            ECHO [ targets.indent ] "Command line free features: " [ $(cf).raw ] ;
+            ECHO [ targets.indent ] "Target requirements: " [ $(self.requirements).raw ] ;
+        }
+        targets.push-target $(__name__) ;
+
+        if ! $(self.generated.$(property-set))
+        {
+            # Apply free features from the command line. If user said
+            #   define=FOO
+            # he most likely wants this define to be set for all compiles.
+            property-set = [ $(property-set).refine
+                [ build-system.command-line-free-features ] ] ;
+            local rproperties = [ targets.common-properties $(property-set)
+                $(self.requirements) ] ;
+
+            if [ modules.peek : .debug-building ]
+            {
+                ECHO ;
+                ECHO [ targets.indent ] "Common properties: " [ $(rproperties).raw ] ;
+            }
+
+            if ( $(rproperties[1]) != "@error" ) && ( [ $(rproperties).get
+                <build> ] != no )
+            {
+                local source-targets ;
+                local properties = [ $(rproperties).non-dependency ] ;
+                local usage-requirements ;
+
+                generate-dependencies [ $(rproperties).dependency ] :
+                    $(rproperties) : properties usage-requirements ;
+
+                generate-dependencies $(self.sources) : $(rproperties) :
+                    source-targets usage-requirements ;
+
+                if [ modules.peek : .debug-building ]
+                {
+                    ECHO ;
+                    ECHO [ targets.indent ] "Usage requirements for"
+                        $(self.name)": " $(usage-requirements) ;
+                }
+
+                rproperties = [ property-set.create $(properties)
+                    $(usage-requirements) ] ;
+                usage-requirements = [ property-set.create $(usage-requirements) ] ;
+
+                if [ modules.peek : .debug-building ]
+                {
+                    ECHO [ targets.indent ] "Build properties: "
+                        [ $(rproperties).raw ] ;
+                }
+
+                local extra = [ $(rproperties).get <source> ] ;
+                source-targets += $(extra:G=) ;
+                # We might get duplicate sources, for example if we link to two
+                # libraries having the same <library> usage requirement.
+                # Use stable sort, since for some targets the order is
+                # important. E.g. RUN_PY target need python source to come
+                # first.
+                source-targets = [ sequence.unique $(source-targets) : stable ] ;
+
+                local result = [ construct $(self.name) : $(source-targets) :
+                    $(rproperties) ] ;
+
+                if $(result)
+                {
+                    local gur = $(result[1]) ;
+                    result = $(result[2-]) ;
+                    
+                    if $(self.always)
+                    {
+                        for local t in $(result)
+                        {
+                            $(t).always ;
+                        }                        
+                    }
+                    
+                    local s = [ create-subvariant $(result)
+                        : [ virtual-target.recent-targets ]
+                        : $(property-set) : $(source-targets)
+                        : $(rproperties) : $(usage-requirements) ] ;
+                    virtual-target.clear-recent-targets ;
+
+                    local ur = [ compute-usage-requirements $(s) ] ;
+                    ur = [ $(ur).add $(gur) ] ;
+                    $(s).set-usage-requirements $(ur) ;
+                    if [ modules.peek : .debug-building ]
+                    {
+                        ECHO [ targets.indent ] "Usage requirements from"
+                            $(self.name)": " [ $(ur).raw ] ;
+                    }
+
+                    self.generated.$(property-set) = $(ur) $(result) ;
+                }
+            }
+            else
+            {
+                if $(rproperties[1]) = "@error"
+                {
+                    ECHO [ targets.indent ] "Skipping build of:" [ full-name ]
+                        "cannot compute common properties" ;
+                }
+                else if [ $(rproperties).get <build> ] = no
+                {
+                    # If we just see <build>no, we cannot produce any reasonable
+                    # diagnostics. The code that adds this property is expected
+                    # to explain why a target is not built, for example using
+                    # the configure.log-component-configuration function.
+                }
+                else
+                {
+                    ECHO [ targets.indent ] "Skipping build of: " [ full-name ]
+                        " unknown reason" ;
+                }
+
+                # We are here either because there has been an error computing
+                # properties or there is <build>no in properties. In the latter
+                # case we do not want any diagnostic. In the former case, we
+                # need diagnostics. FIXME
+
+                # If this target fails to build, add <build>no to properties to
+                # cause any parent target to fail to build. Except that it
+                # - does not work now, since we check for <build>no only in
+                #   common properties, but not in properties that came from
+                #   dependencies
+                # - it is not clear if that is a good idea anyway. The alias
+                #   target, for example, should not fail to build if a
+                #   dependency fails.
+                self.generated.$(property-set) = [ property-set.create <build>no ] ;
+            }
+        }
+        else
+        {
+            if [ modules.peek : .debug-building ]
+            {
+                ECHO [ targets.indent ] "Already built" ;
+                local ur = $(self.generated.$(property-set)) ;
+                ur = $(ur[0]) ;
+                targets.increase-indent ;
+                ECHO [ targets.indent ] "Usage requirements from"
+                    $(self.name)": " [ $(ur).raw ] ;
+                targets.decrease-indent ;
+            }
+        }
+
+        targets.pop-target ;
+        targets.decrease-indent ;
+        return $(self.generated.$(property-set)) ;
+    }
+
+    # Given the set of generated targets, and refined build properties,
+    # determines and sets appropriate usage requirements on those targets.
+    #
+    rule compute-usage-requirements ( subvariant )
+    {
+        local rproperties = [ $(subvariant).build-properties ] ;
+        xusage-requirements = [ targets.evaluate-requirements
+            $(self.usage-requirements) : $(rproperties) : added ] ;
+
+        # We generate all dependency properties and add them, as well as their
+        # usage requirements, to the result.
+        local extra ;
+        generate-dependencies [ $(xusage-requirements).dependency ] :
+            $(rproperties) : extra extra ;
+
+        local result = [ property-set.create
+            [ $(xusage-requirements).non-dependency ] $(extra) ] ;
+
+        # Propagate usage requirements we got from sources, except for the
+        # <pch-header> and <pch-file> features.
+        #
+        # That feature specifies which pch file to use, and should apply only to
+        # direct dependents. Consider:
+        #
+        #   pch pch1 : ...
+        #   lib lib1 : ..... pch1 ;
+        #   pch pch2 :
+        #   lib lib2 : pch2 lib1 ;
+        #
+        # Here, lib2 should not get <pch-header> property from pch1.
+        #
+        # Essentially, when those two features are in usage requirements, they
+        # are propagated only to direct dependents. We might need a more general
+        # mechanism, but for now, only those two features are special.
+        #
+        # TODO - Actually there are more possible candidates like for instance
+        # when listing static library X as a source for another static library.
+        # Then static library X will be added as a <source> property to the
+        # second library's usage requirements but those requirements should last
+        # only up to the first executable or shared library that actually links
+        # to it.
+        local raw = [ $(subvariant).sources-usage-requirements ] ;
+        raw = [ $(raw).raw ] ;
+        raw = [ property.change $(raw) : <pch-header> ] ;
+        raw = [ property.change $(raw) : <pch-file> ] ;
+        return [ $(result).add [ property-set.create $(raw) ] ] ;
+    }
+
+    # Creates new subvariant instances for 'targets'.
+    # 'root-targets'  - virtual targets to be returned to dependants
+    # 'all-targets'   - virtual targets created while building this main target
+    # 'build-request' - property-set instance with requested build properties
+    #
+    local rule create-subvariant ( root-targets * : all-targets * :
+        build-request : sources * : rproperties : usage-requirements )
+    {
+        for local e in $(root-targets)
+        {
+            $(e).root true ;
+        }
+
+        # Process all virtual targets that will be created if this main target
+        # is created.
+        local s = [ new subvariant $(__name__) : $(build-request) : $(sources) :
+            $(rproperties) : $(usage-requirements) : $(all-targets) ] ;
+        for local v in $(all-targets)
+        {
+            if ! [ $(v).creating-subvariant ]
+            {
+                $(v).creating-subvariant $(s) ;
+            }
+        }
+        return $(s) ;
+    }
+
+    # Constructs virtual targets for this abstract target and the dependency
+    # graph. Returns a usage-requirements property-set and a list of virtual
+    # targets. Should be overriden in derived classes.
+    #
+    rule construct ( name : source-targets * : properties * )
+    {
+        errors.error "method should be defined in derived classes" ;
+    }
+}
+
+
+class typed-target : basic-target
+{
+    import generators ;
+
+    rule __init__ ( name : project : type : sources * : requirements * :
+         default-build * : usage-requirements * )
+    {
+        basic-target.__init__ $(name) : $(project) : $(sources) :
+            $(requirements) : $(default-build) : $(usage-requirements) ;
+
+        self.type = $(type) ;
+    }
+
+    rule type ( )
+    {
+        return $(self.type) ;
+    }
+
+    rule construct ( name : source-targets * : property-set )
+    {
+        local r = [ generators.construct $(self.project) $(name:S=) : $(self.type)
+            : [ property-set.create [ $(property-set).raw ]
+                <main-target-type>$(self.type) ]
+            : $(source-targets) : true ] ;
+        if ! $(r)
+        {
+            ECHO "warn: Unable to construct" [ full-name ] ;
+
+            # Are there any top-level generators for this type/property set.
+            if ! [ generators.find-viable-generators $(self.type)
+                : $(property-set) ]
+            {
+                ECHO "error: no generators were found for type '$(self.type)'" ;
+                ECHO "error: and the requested properties" ;
+                ECHO "error: make sure you've configured the needed tools" ;
+                ECHO "See http://boost.org/boost-build2/doc/html/bbv2/advanced/configuration.html" ;
+                ECHO "To debug this problem, try the --debug-generators option." ;
+                EXIT ;
+            }
+        }
+        return $(r) ;
+    }
+}
+
+
+# Return the list of sources to use, if main target rule is invoked with
+# 'sources'. If there are any objects in 'sources', they are treated as main
+# target instances, and the name of such targets are adjusted to be
+# '<name_of_this_target>__<name_of_source_target>'. Such renaming is disabled if
+# a non-empty value is passed as the 'no-renaming' parameter.
+#
+rule main-target-sources ( sources * : main-target-name : no-renaming ? )
+{
+    local result ;
+    for local t in $(sources)
+    {
+        if [ class.is-instance $(t) ]
+        {
+            local name = [ $(t).name ] ;
+            if ! $(no-renaming)
+            {
+                name = $(main-target-name)__$(name) ;
+                $(t).rename $(name) ;
+            }
+            # Inline targets are not built by default.
+            local p = [ $(t).project ] ;
+            $(p).mark-target-as-explicit $(name) ;
+            result += $(name) ;
+        }
+        else
+        {
+            result += $(t) ;
+        }
+    }
+    return $(result) ;
+}
+
+
+# Returns the requirements to use when declaring a main target, obtained by
+# translating all specified property paths and refining project requirements
+# with the ones specified for the target.
+#
+rule main-target-requirements (
+    specification *  # Properties explicitly specified for the main target.
+    : project        # Project where the main target is to be declared.
+)
+{
+    specification += [ toolset.requirements ] ;
+
+    local requirements = [ property-set.refine-from-user-input
+        [ $(project).get requirements ] : $(specification) :
+        [ $(project).project-module ] : [ $(project).get location ] ] ;
+    if $(requirements[1]) = "@error"
+    {
+        errors.error "Conflicting requirements for target:" $(requirements) ;
+    }
+    return $(requirements) ;
+}
+
+
+# Returns the usage requirements to use when declaring a main target, which are
+# obtained by translating all specified property paths and adding project's
+# usage requirements.
+#
+rule main-target-usage-requirements (
+    specification *  # Use-properties explicitly specified for a main target.
+    : project        # Project where the main target is to be declared.
+)
+{
+    local project-usage-requirements = [ $(project).get usage-requirements ] ;
+
+    # We do not use 'refine-from-user-input' because:
+    # - I am not sure if removing parent's usage requirements makes sense
+    # - refining usage requirements is not needed, since usage requirements are
+    #   always free.
+    local usage-requirements = [ property-set.create-from-user-input
+        $(specification)
+        : [ $(project).project-module ] [ $(project).get location ] ] ;
+
+    return [ $(project-usage-requirements).add $(usage-requirements) ] ;
+}
+
+
+# Return the default build value to use when declaring a main target, which is
+# obtained by using the specified value if not empty and parent's default build
+# attribute otherwise.
+#
+rule main-target-default-build (
+    specification *  # Default build explicitly specified for a main target.
+    : project        # Project where the main target is to be declared.
+)
+{
+    local result ;
+    if $(specification)
+    {
+        result = $(specification) ;
+    }
+    else
+    {
+        result = [ $(project).get default-build ] ;
+    }
+    return [ property-set.create-with-validation $(result) ] ;
+}
+
+
+# Registers the specified target as a main target alternative and returns it.
+#
+rule main-target-alternative ( target )
+{
+    local ptarget = [ $(target).project ] ;
+    $(ptarget).add-alternative $(target) ;
+    return $(target) ;
+}
+
+# Creates a new metargets with the specified properties, using 'klass' as
+# the class. The 'name', 'sources',
+# 'requirements', 'default-build' and 'usage-requirements' are assumed to be in
+# the form specified by the user in Jamfile corresponding to 'project'.
+#
+rule create-metatarget ( klass : project : name : sources * : requirements * :
+    default-build * : usage-requirements * )
+{
+    return [
+        targets.main-target-alternative
+        [ new $(klass) $(name) : $(project)
+            : [ targets.main-target-sources $(sources) : $(name) ]
+            : [ targets.main-target-requirements $(requirements) : $(project) ]
+            : [ targets.main-target-default-build $(default-build) : $(project) ]
+            : [ targets.main-target-usage-requirements $(usage-requirements) : $(project) ]
+        ] ] ;
+}
+
+# Creates a typed-target with the specified properties. The 'name', 'sources',
+# 'requirements', 'default-build' and 'usage-requirements' are assumed to be in
+# the form specified by the user in Jamfile corresponding to 'project'.
+#
+rule create-typed-target ( type : project : name : sources * : requirements * :
+    default-build * : usage-requirements * )
+{
+    return [
+        targets.main-target-alternative
+        [ new typed-target $(name) : $(project) : $(type)
+            : [ targets.main-target-sources $(sources) : $(name) ]
+            : [ targets.main-target-requirements $(requirements) : $(project) ]
+            : [ targets.main-target-default-build $(default-build) : $(project) ]
+            : [ targets.main-target-usage-requirements $(usage-requirements) : $(project) ]
+        ] ] ;
+}
diff --git a/jam-files/boost-build/build/targets.py b/jam-files/boost-build/build/targets.py
new file mode 100644
index 00000000..a35612ce
--- /dev/null
+++ b/jam-files/boost-build/build/targets.py
@@ -0,0 +1,1401 @@
+# Status: ported.
+# Base revision: 64488
+
+# Copyright Vladimir Prus 2002-2007.
+# Copyright Rene Rivera 2006.
+#
+# Distributed under the Boost Software License, Version 1.0.
+#    (See accompanying file LICENSE_1_0.txt or copy at
+#          http://www.boost.org/LICENSE_1_0.txt)
+
+#   Supports 'abstract' targets, which are targets explicitly defined in Jamfile.
+#
+#   Abstract targets are represented by classes derived from 'AbstractTarget' class. 
+#   The first abstract target is 'project_target', which is created for each
+#   Jamfile, and can be obtained by the 'target' rule in the Jamfile's module.
+#   (see project.jam). 
+#
+#   Project targets keep a list of 'MainTarget' instances.
+#   A main target is what the user explicitly defines in a Jamfile. It is
+#   possible to have several definitions for a main target, for example to have
+#   different lists of sources for different platforms. So, main targets
+#   keep a list of alternatives.
+#
+#   Each alternative is an instance of 'AbstractTarget'. When a main target
+#   subvariant is defined by some rule, that rule will decide what class to
+#   use, create an instance of that class and add it to the list of alternatives
+#   for the main target.
+#
+#   Rules supplied by the build system will use only targets derived
+#   from 'BasicTarget' class, which will provide some default behaviour.
+#   There will be two classes derived from it, 'make-target', created by the
+#   'make' rule, and 'TypedTarget', created by rules such as 'exe' and 'dll'.
+
+#
+#                         +------------------------+
+#                         |AbstractTarget          |
+#                         +========================+
+#                         |name                    |
+#                         |project                 |                                   
+#                         |                        |                                   
+#                         |generate(properties) = 0|                                   
+#                         +-----------+------------+                                   
+#                                     |                                                
+#                                     ^                                                
+#                                    / \                                               
+#                                   +-+-+                                              
+#                                     |                                                
+#                                     |                                                
+#            +------------------------+------+------------------------------+          
+#            |                               |                              |          
+#            |                               |                              |          
+# +----------+-----------+            +------+------+                +------+-------+  
+# | project_target       |            | MainTarget  |                | BasicTarget  |  
+# +======================+ 1        * +=============+  alternatives  +==============+  
+# | generate(properties) |o-----------+ generate    |<>------------->| generate     |  
+# | main-target          |            +-------------+                | construct = 0|
+# +----------------------+                                           +--------------+  
+#                                                                           |          
+#                                                                           ^          
+#                                                                          / \         
+#                                                                         +-+-+        
+#                                                                           |          
+#                                                                           |          
+#                 ...--+----------------+------------------+----------------+---+      
+#                      |                |                  |                    |      
+#                      |                |                  |                    |      
+#               ... ---+-----+   +------+-------+   +------+------+    +--------+-----+
+#                            |   | TypedTarget  |   | make-target |    | stage-target |
+#                            .   +==============+   +=============+    +==============+
+#                            .   | construct    |   | construct   |    | construct    |
+#                                +--------------+   +-------------+    +--------------+
+
+import re
+import os.path
+import sys
+
+from b2.manager import get_manager
+
+from b2.util.utility import *
+import property, project, virtual_target, property_set, feature, generators, toolset
+from virtual_target import Subvariant
+from b2.exceptions import *
+from b2.util.sequence import unique
+from b2.util import path, bjam_signature
+from b2.build.errors import user_error_checkpoint
+
+import b2.build.build_request as build_request
+
+import b2.util.set
+_re_separate_target_from_properties = re.compile (r'^([^<]*)(/(<.*))?$')
+
+class TargetRegistry:
+    
+    def __init__ (self):
+        # All targets that are currently being built.
+        # Only the key is id (target), the value is the actual object.
+        self.targets_being_built_ = {}
+
+        # Current indent for debugging messages
+        self.indent_ = ""
+
+        self.debug_building_ = "--debug-building" in bjam.variable("ARGV")
+
+        self.targets_ = []
+
+    def main_target_alternative (self, target):
+        """ Registers the specified target as a main target alternatives.
+            Returns 'target'.
+        """
+        target.project ().add_alternative (target)
+        return target
+
+    def main_target_sources (self, sources, main_target_name, no_renaming=0):
+        """Return the list of sources to use, if main target rule is invoked
+        with 'sources'. If there are any objects in 'sources', they are treated
+        as main target instances, and the name of such targets are adjusted to
+        be '<name_of_this_target>__<name_of_source_target>'. Such renaming
+        is disabled is non-empty value is passed for 'no-renaming' parameter."""
+        result = []
+
+        for t in sources:
+
+            t = b2.util.jam_to_value_maybe(t)
+            
+            if isinstance (t, AbstractTarget):
+                name = t.name ()
+
+                if not no_renaming:
+                    name = main_target_name + '__' + name
+                    t.rename (name)
+
+                # Inline targets are not built by default.
+                p = t.project()
+                p.mark_targets_as_explicit([name])                    
+                result.append(name)
+
+            else:
+                result.append (t)
+
+        return result
+
+
+    def main_target_requirements(self, specification, project):
+        """Returns the requirement to use when declaring a main target,
+         which are obtained by
+         - translating all specified property paths, and
+         - refining project requirements with the one specified for the target
+        
+         'specification' are the properties xplicitly specified for a
+          main target
+         'project' is the project where the main taret is to be declared."""
+
+        specification.extend(toolset.requirements())
+
+        requirements = property_set.refine_from_user_input(
+            project.get("requirements"), specification,
+            project.project_module(), project.get("location"))
+
+        return requirements
+
+    def main_target_usage_requirements (self, specification, project):
+        """ Returns the use requirement to use when declaraing a main target,
+            which are obtained by
+            - translating all specified property paths, and
+            - adding project's usage requirements
+            specification:  Use-properties explicitly specified for a main target
+            project:        Project where the main target is to be declared
+        """
+        project_usage_requirements = project.get ('usage-requirements')
+
+        # We don't use 'refine-from-user-input' because I'm not sure if:
+        # - removing of parent's usage requirements makes sense
+        # - refining of usage requirements is not needed, since usage requirements
+        #   are always free.
+        usage_requirements = property_set.create_from_user_input(
+            specification, project.project_module(), project.get("location"))
+        
+        return project_usage_requirements.add (usage_requirements)
+
+    def main_target_default_build (self, specification, project):
+        """ Return the default build value to use when declaring a main target,
+            which is obtained by using specified value if not empty and parent's
+            default build attribute otherwise.
+            specification:  Default build explicitly specified for a main target
+            project:        Project where the main target is to be declared
+        """
+        if specification:
+            return property_set.create_with_validation(specification)
+        else:
+            return project.get ('default-build')
+
+    def start_building (self, main_target_instance):
+        """ Helper rules to detect cycles in main target references.
+        """
+        if self.targets_being_built_.has_key(id(main_target_instance)):
+            names = []
+            for t in self.targets_being_built_.values() + [main_target_instance]:
+                names.append (t.full_name())
+            
+            get_manager().errors()("Recursion in main target references\n")
+        
+        self.targets_being_built_[id(main_target_instance)] = main_target_instance
+
+    def end_building (self, main_target_instance):
+        assert (self.targets_being_built_.has_key (id (main_target_instance)))
+        del self.targets_being_built_ [id (main_target_instance)]
+
+    def create_typed_target (self, type, project, name, sources, requirements, default_build, usage_requirements):
+        """ Creates a TypedTarget with the specified properties.
+            The 'name', 'sources', 'requirements', 'default_build' and
+            'usage_requirements' are assumed to be in the form specified
+            by the user in Jamfile corresponding to 'project'.
+        """
+        return self.main_target_alternative (TypedTarget (name, project, type,
+            self.main_target_sources (sources, name),
+            self.main_target_requirements (requirements, project),
+            self.main_target_default_build (default_build, project),
+            self.main_target_usage_requirements (usage_requirements, project)))
+
+    def increase_indent(self):
+        self.indent_ += "    "
+
+    def decrease_indent(self):
+        self.indent_ = self.indent_[0:-4]
+
+    def logging(self):
+        return self.debug_building_
+
+    def log(self, message):
+        if self.debug_building_:
+            print self.indent_ + message
+
+    def push_target(self, target):
+        self.targets_.append(target)
+
+    def pop_target(self):
+        self.targets_ = self.targets_[:-1]
+
+    def current(self):
+        return self.targets_[0]
+
+
+class GenerateResult:
+    
+    def __init__ (self, ur=None, targets=None):
+        if not targets:
+            targets = []
+        
+        self.__usage_requirements = ur
+        self.__targets = targets
+        assert all(isinstance(t, virtual_target.VirtualTarget) for t in targets)
+
+        if not self.__usage_requirements:
+            self.__usage_requirements = property_set.empty ()
+
+    def usage_requirements (self):
+        return self.__usage_requirements
+
+    def targets (self):
+        return self.__targets
+    
+    def extend (self, other):
+        assert (isinstance (other, GenerateResult))
+        
+        self.__usage_requirements = self.__usage_requirements.add (other.usage_requirements ())
+        self.__targets.extend (other.targets ())
+
+class AbstractTarget:
+    """ Base class for all abstract targets.
+    """
+    def __init__ (self, name, project, manager = None):
+        """ manager:     the Manager object
+            name:        name of the target
+            project:     the project target to which this one belongs
+            manager:the manager object. If none, uses project.manager ()
+        """
+        assert (isinstance (project, ProjectTarget))
+        # Note: it might seem that we don't need either name or project at all.
+        # However, there are places where we really need it. One example is error
+        # messages which should name problematic targets. Another is setting correct
+        # paths for sources and generated files.
+        
+        # Why allow manager to be specified? Because otherwise project target could not derive
+        # from this class.
+        if manager:
+            self.manager_ = manager
+        else:
+            self.manager_ = project.manager ()
+
+        self.name_ = name
+        self.project_ = project        
+    
+    def manager (self):
+        return self.manager_
+    
+    def name (self):
+        """ Returns the name of this target.
+        """
+        return self.name_
+    
+    def project (self):
+        """ Returns the project for this target.
+        """
+        return self.project_
+    
+    def location (self):
+        """ Return the location where the target was declared.
+        """
+        return self.location_
+            
+    def full_name (self):
+        """ Returns a user-readable name for this target.
+        """
+        location = self.project ().get ('location')
+        return location + '/' + self.name_
+        
+    def generate (self, property_set):
+        """ Takes a property set.  Generates virtual targets for this abstract
+            target, using the specified properties, unless a different value of some
+            feature is required by the target. 
+            On success, returns a GenerateResult instance with:
+                - a property_set with the usage requirements to be
+                  applied to dependents 
+                - a list of produced virtual targets, which may be
+                   empty.  
+            If 'property_set' is empty, performs default build of this
+            target, in a way specific to derived class.
+        """
+        raise BaseException ("method should be defined in derived classes")
+    
+    def rename (self, new_name):
+        self.name_ = new_name
+
+class ProjectTarget (AbstractTarget):
+    """ Project target class (derived from 'AbstractTarget')
+
+        This class these responsibilities:
+        - maintaining a list of main target in this project and
+          building it
+
+        Main targets are constructed in two stages:
+        - When Jamfile is read, a number of calls to 'add_alternative' is made.
+          At that time, alternatives can also be renamed to account for inline
+          targets.
+        - The first time 'main-target' or 'has-main-target' rule is called,
+          all alternatives are enumerated an main targets are created.
+    """
+    def __init__ (self, manager, name, project_module, parent_project, requirements, default_build):
+        AbstractTarget.__init__ (self, name, self, manager)
+        
+        self.project_module_ = project_module
+        self.location_ = manager.projects().attribute (project_module, 'location')
+        self.requirements_ = requirements
+        self.default_build_ = default_build
+       
+        self.build_dir_ = None
+        
+        # A cache of IDs
+        self.ids_cache_ = {}
+        
+        # True is main targets have already been built.
+        self.built_main_targets_ = False
+        
+        # A list of the registered alternatives for this project.
+        self.alternatives_ = []
+
+        # A map from main target name to the target corresponding
+        # to it.
+        self.main_target_ = {}
+        
+        # Targets marked as explicit.
+        self.explicit_targets_ = set()
+
+        # Targets marked as always
+        self.always_targets_ = set()
+
+        # The constants defined for this project.
+        self.constants_ = {}
+
+        # Whether targets for all main target are already created.
+        self.built_main_targets_ = 0
+
+        if parent_project:
+            self.inherit (parent_project)
+
+
+    # TODO: This is needed only by the 'make' rule. Need to find the
+    # way to make 'make' work without this method.
+    def project_module (self):
+        return self.project_module_
+    
+    def get (self, attribute):
+        return self.manager().projects().attribute(
+            self.project_module_, attribute)
+
+    def build_dir (self):
+        if not self.build_dir_:
+            self.build_dir_ = self.get ('build-dir')
+            if not self.build_dir_:
+                self.build_dir_ = os.path.join(self.project_.get ('location'), 'bin')
+
+        return self.build_dir_
+
+    def generate (self, ps):
+        """ Generates all possible targets contained in this project.
+        """
+        self.manager_.targets().log(
+            "Building project '%s' with '%s'" % (self.name (), str(ps)))
+        self.manager_.targets().increase_indent ()
+        
+        result = GenerateResult ()
+                
+        for t in self.targets_to_build ():
+            g = t.generate (ps)
+            result.extend (g)
+            
+        self.manager_.targets().decrease_indent ()
+        return result
+
+    def targets_to_build (self):
+        """ Computes and returns a list of AbstractTarget instances which
+            must be built when this project is built.
+        """
+        result = []
+        
+        if not self.built_main_targets_:
+            self.build_main_targets ()
+        
+        # Collect all main targets here, except for "explicit" ones.
+        for n, t  in self.main_target_.iteritems ():
+            if not t.name () in self.explicit_targets_:
+                result.append (t)
+
+        # Collect all projects referenced via "projects-to-build" attribute.
+        self_location = self.get ('location')
+        for pn in self.get ('projects-to-build'):
+            result.append (self.find(pn + "/"))
+                        
+        return result
+
+    def mark_targets_as_explicit (self, target_names):
+        """Add 'target' to the list of targets in this project
+        that should be build only by explicit request."""
+        
+        # Record the name of the target, not instance, since this
+        # rule is called before main target instaces are created.
+        self.explicit_targets_.update(target_names)
+
+    def mark_targets_as_always(self, target_names):
+        self.always_targets_.update(target_names)
+    
+    def add_alternative (self, target_instance):
+        """ Add new target alternative.
+        """
+        if self.built_main_targets_:
+            raise IllegalOperation ("add-alternative called when main targets are already created for project '%s'" % self.full_name ())
+
+        self.alternatives_.append (target_instance)
+
+    def main_target (self, name):
+        if not self.built_main_targets_:
+            self.build_main_targets()
+
+        return self.main_target_[name]
+
+    def has_main_target (self, name):
+        """Tells if a main target with the specified name exists."""
+        if not self.built_main_targets_:
+            self.build_main_targets()
+
+        return self.main_target_.has_key(name)
+            
+    def create_main_target (self, name):
+        """ Returns a 'MainTarget' class instance corresponding to the 'name'.
+        """
+        if not self.built_main_targets_:
+            self.build_main_targets ()
+                        
+        return self.main_targets_.get (name, None)
+
+
+    def find_really(self, id):
+        """ Find and return the target with the specified id, treated
+            relative to self.
+        """
+        result = None        
+        current_location = self.get ('location')
+
+        __re_split_project_target = re.compile (r'(.*)//(.*)')
+        split = __re_split_project_target.match (id)
+
+        project_part = None
+        target_part = None
+
+        if split:
+            project_part = split.group (1)
+            target_part = split.group (2)
+
+        project_registry = self.project_.manager ().projects ()
+        
+        extra_error_message = ''
+        if project_part:
+            # There's explicit project part in id. Looks up the
+            # project and pass the request to it.
+            pm = project_registry.find (project_part, current_location)
+            
+            if pm:
+                project_target = project_registry.target (pm)
+                result = project_target.find (target_part, no_error=1)
+
+            else:
+                extra_error_message = "error: could not find project '$(project_part)'"
+
+        else:
+            # Interpret target-name as name of main target
+            # Need to do this before checking for file. Consider this:
+            #
+            #  exe test : test.cpp ;
+            #  install s : test : <location>. ;
+            #
+            # After first build we'll have target 'test' in Jamfile and file
+            # 'test' on the disk. We need target to override the file.
+            
+            result = None
+            if self.has_main_target(id):
+                result = self.main_target(id)
+
+            if not result:
+                result = FileReference (self.manager_, id, self.project_)
+                if not result.exists ():
+                    # File actually does not exist.
+                    # Reset 'target' so that an error is issued.
+                    result = None
+                    
+
+            if not result:
+                # Interpret id as project-id
+                project_module = project_registry.find (id, current_location)
+                if project_module:
+                    result = project_registry.target (project_module)
+                                    
+        return result
+
+    def find (self, id, no_error = False):
+        v = self.ids_cache_.get (id, None)
+        
+        if not v:
+            v = self.find_really (id)
+            self.ids_cache_ [id] = v
+
+        if v or no_error:
+            return v
+
+        raise BaseException ("Unable to find file or target named '%s'\nreferred from project at '%s'" % (id, self.get ('location')))
+
+    
+    def build_main_targets (self):
+        self.built_main_targets_ = True
+        
+        for a in self.alternatives_:
+            name = a.name ()
+            if not self.main_target_.has_key (name):
+                t = MainTarget (name, self.project_)
+                self.main_target_ [name] = t
+
+            if name in self.always_targets_:
+                a.always()
+            
+            self.main_target_ [name].add_alternative (a)
+
+    def add_constant(self, name, value, path=0):
+        """Adds a new constant for this project.
+
+        The constant will be available for use in Jamfile
+        module for this project. If 'path' is true,
+        the constant will be interpreted relatively
+        to the location of project.
+        """
+
+        if path:
+            l = self.location_
+            if not l:
+                # Project corresponding to config files do not have 
+                # 'location' attribute, but do have source location.
+                # It might be more reasonable to make every project have
+                # a location and use some other approach to prevent buildable
+                # targets in config files, but that's for later.
+                l = get('source-location')
+                
+            value = os.path.join(l, value)
+            # Now make the value absolute path
+            value = os.path.join(os.getcwd(), value)
+
+        self.constants_[name] = value
+        bjam.call("set-variable", self.project_module(), name, value)
+
+    def inherit(self, parent_project):
+        for c in parent_project.constants_:
+            # No need to pass the type. Path constants were converted to
+            # absolute paths already by parent.
+            self.add_constant(c, parent_project.constants_[c])
+        
+        # Import rules from parent 
+        this_module = self.project_module()
+        parent_module = parent_project.project_module()
+
+        rules = bjam.call("RULENAMES", parent_module)
+        if not rules:
+            rules = []
+        user_rules = [x for x in rules
+                      if x not in self.manager().projects().project_rules().all_names()]
+        if user_rules:
+            bjam.call("import-rules-from-parent", parent_module, this_module, user_rules)
+        
+class MainTarget (AbstractTarget):
+    """ A named top-level target in Jamfile.
+    """
+    def __init__ (self, name, project):
+        AbstractTarget.__init__ (self, name, project)    
+        self.alternatives_ = []
+        self.default_build_ = property_set.empty ()
+        
+    def add_alternative (self, target):
+        """ Add a new alternative for this target.
+        """
+        d = target.default_build ()
+        
+        if self.alternatives_ and self.default_build_ != d:
+            get_manager().errors()("default build must be identical in all alternatives\n"
+              "main target is '%s'\n"
+              "with '%s'\n"
+              "differing from previous default build: '%s'" % (self.full_name (), d.raw (), self.default_build_.raw ()))
+
+        else:
+            self.default_build_ = d
+
+        self.alternatives_.append (target)
+
+    def __select_alternatives (self, property_set, debug):
+        """ Returns the best viable alternative for this property_set
+            See the documentation for selection rules.
+            # TODO: shouldn't this be 'alternative' (singular)?
+        """
+        # When selecting alternatives we have to consider defaults,
+        # for example:
+        #    lib l : l.cpp : <variant>debug ;
+        #    lib l : l_opt.cpp : <variant>release ;
+        # won't work unless we add default value <variant>debug.
+        property_set = property_set.add_defaults ()
+        
+        # The algorithm: we keep the current best viable alternative.
+        # When we've got new best viable alternative, we compare it
+        # with the current one. 
+        best = None
+        best_properties = None
+                        
+        if len (self.alternatives_) == 0:
+            return None
+
+        if len (self.alternatives_) == 1:
+            return self.alternatives_ [0]
+
+        if debug:
+            print "Property set for selection:", property_set
+
+        for v in self.alternatives_:
+            properties = v.match (property_set, debug)
+                       
+            if properties is not None:
+                if not best:
+                    best = v
+                    best_properties = properties
+
+                else:
+                    if b2.util.set.equal (properties, best_properties):
+                        return None
+
+                    elif b2.util.set.contains (properties, best_properties):
+                        # Do nothing, this alternative is worse
+                        pass
+
+                    elif b2.util.set.contains (best_properties, properties):
+                        best = v
+                        best_properties = properties
+
+                    else:
+                        return None
+
+        return best
+
+    def apply_default_build (self, property_set):
+        return apply_default_build(property_set, self.default_build_)
+
+    def generate (self, ps):
+        """ Select an alternative for this main target, by finding all alternatives
+            which requirements are satisfied by 'properties' and picking the one with
+            longest requirements set.
+            Returns the result of calling 'generate' on that alternative.
+        """
+        self.manager_.targets ().start_building (self)
+
+        # We want composite properties in build request act as if
+        # all the properties it expands too are explicitly specified.
+        ps = ps.expand ()
+        
+        all_property_sets = self.apply_default_build (ps)
+
+        result = GenerateResult ()
+        
+        for p in all_property_sets:
+            result.extend (self.__generate_really (p))
+
+        self.manager_.targets ().end_building (self)
+
+        return result
+        
+    def __generate_really (self, prop_set):
+        """ Generates the main target with the given property set
+            and returns a list which first element is property_set object
+            containing usage_requirements of generated target and with
+            generated virtual target in other elements. It's possible
+            that no targets are generated.
+        """
+        best_alternative = self.__select_alternatives (prop_set, debug=0)
+
+        if not best_alternative:
+            # FIXME: revive.
+            # self.__select_alternatives(prop_set, debug=1)
+            self.manager_.errors()(
+                "No best alternative for '%s'.\n"
+                  % (self.full_name(),))
+
+        result = best_alternative.generate (prop_set)
+                    
+        # Now return virtual targets for the only alternative
+        return result
+    
+    def rename(self, new_name):
+        AbstractTarget.rename(self, new_name)
+        for a in self.alternatives_:
+            a.rename(new_name)
+
+class FileReference (AbstractTarget):
+    """ Abstract target which refers to a source file.
+        This is artificial creature; it's usefull so that sources to 
+        a target can be represented as list of abstract target instances.
+    """
+    def __init__ (self, manager, file, project):
+        AbstractTarget.__init__ (self, file, project)
+        self.file_location_ = None
+    
+    def generate (self, properties):
+         return GenerateResult (None, [
+             self.manager_.virtual_targets ().from_file (
+             self.name_, self.location(), self.project_) ])
+
+    def exists (self):
+        """ Returns true if the referred file really exists.
+        """
+        if self.location ():
+            return True
+        else:
+            return False
+
+    def location (self):
+        # Returns the location of target. Needed by 'testing.jam'
+        if not self.file_location_:
+            source_location = self.project_.get('source-location')
+            
+            for src_dir in source_location:
+                location = os.path.join(src_dir, self.name())
+                if os.path.isfile(location):
+                    self.file_location_ = src_dir
+                    self.file_path = location
+                    break
+
+        return self.file_location_
+
+def resolve_reference(target_reference, project):
+    """ Given a target_reference, made in context of 'project',
+    returns the AbstractTarget instance that is referred to, as well
+    as properties explicitly specified for this reference.
+    """
+    # Separate target name from properties override
+    split = _re_separate_target_from_properties.match (target_reference)
+    if not split:
+        raise BaseException ("Invalid reference: '%s'" % target_reference)
+    
+    id = split.group (1)
+    
+    sproperties = []
+    
+    if split.group (3):
+        sproperties = property.create_from_strings(feature.split(split.group(3)))
+        sproperties = feature.expand_composites(sproperties)
+        
+    # Find the target
+    target = project.find (id)
+    
+    return (target, property_set.create(sproperties))
+
+def generate_from_reference(target_reference, project, property_set):
+    """ Attempts to generate the target given by target reference, which
+    can refer both to a main target or to a file.
+    Returns a list consisting of
+    - usage requirements
+    - generated virtual targets, if any
+    target_reference:  Target reference
+    project:           Project where the reference is made
+    property_set:      Properties of the main target that makes the reference
+    """
+    target, sproperties = resolve_reference(target_reference, project)
+    
+    # Take properties which should be propagated and refine them
+    # with source-specific requirements.
+    propagated = property_set.propagated()
+    rproperties = propagated.refine(sproperties)
+    
+    return target.generate(rproperties)
+
+
+
+class BasicTarget (AbstractTarget):
+    """ Implements the most standard way of constructing main target
+        alternative from sources. Allows sources to be either file or
+        other main target and handles generation of those dependency
+        targets.
+    """
+    def __init__ (self, name, project, sources, requirements = None, default_build = None, usage_requirements = None):
+        AbstractTarget.__init__ (self, name, project)
+    
+        for s in sources:
+            if get_grist (s):
+                raise InvalidSource ("property '%s' found in the 'sources' parameter for '%s'" % (s, name))
+    
+        self.sources_ = sources
+        
+        if not requirements: requirements = property_set.empty ()
+        self.requirements_ = requirements
+
+        if not default_build: default_build = property_set.empty ()
+        self.default_build_ = default_build
+
+        if not usage_requirements: usage_requirements = property_set.empty ()
+        self.usage_requirements_ = usage_requirements
+        
+        # A cache for resolved references
+        self.source_targets_ = None
+        
+        # A cache for generated targets
+        self.generated_ = {}
+        
+        # A cache for build requests
+        self.request_cache = {}
+
+        # Result of 'capture_user_context' has everything. For example, if this
+        # target is declare as result of loading Jamfile which was loaded when
+        # building target B which was requested from A, then we'll have A, B and
+        # Jamroot location in context. We only care about Jamroot location, most
+        # of the times.
+        self.user_context_ = self.manager_.errors().capture_user_context()[-1:]
+
+        self.always_ = False
+
+    def always(self):
+        self.always_ = True
+        
+    def sources (self):
+        """ Returns the list of AbstractTargets which are used as sources.
+            The extra properties specified for sources are not represented.
+            The only used of this rule at the moment is the '--dump-tests'
+            feature of the test system.            
+        """
+        if self.source_targets_ == None:
+            self.source_targets_ = []
+            for s in self.sources_:
+                self.source_targets_.append(resolve_reference(s, self.project_)[0])
+
+        return self.source_targets_
+
+    def requirements (self):
+        return self.requirements_
+                        
+    def default_build (self):
+        return self.default_build_
+
+    def common_properties (self, build_request, requirements):
+        """ Given build request and requirements, return properties
+            common to dependency build request and target build
+            properties.
+        """
+        # For optimization, we add free unconditional requirements directly,
+        # without using complex algorithsm.
+        # This gives the complex algorithm better chance of caching results.        
+        # The exact effect of this "optimization" is no longer clear
+        free_unconditional = []
+        other = []
+        for p in requirements.all():
+            if p.feature().free() and not p.condition() and p.feature().name() != 'conditional':
+                free_unconditional.append(p)
+            else:
+                other.append(p)
+        other = property_set.create(other)
+                
+        key = (build_request, other)
+        if not self.request_cache.has_key(key):
+            self.request_cache[key] = self.__common_properties2 (build_request, other)
+
+        return self.request_cache[key].add_raw(free_unconditional)
+
+    # Given 'context' -- a set of already present properties, and 'requirements',
+    # decide which extra properties should be applied to 'context'. 
+    # For conditional requirements, this means evaluating condition. For 
+    # indirect conditional requirements, this means calling a rule. Ordinary
+    # requirements are always applied.
+    #
+    # Handles situation where evaluating one conditional requirements affects
+    # condition of another conditional requirements, for example:
+    #
+    #     <toolset>gcc:<variant>release <variant>release:<define>RELEASE
+    #
+    # If 'what' is 'refined' returns context refined with new requirements. 
+    # If 'what' is 'added' returns just the requirements that must be applied.
+    def evaluate_requirements(self, requirements, context, what):
+        # Apply non-conditional requirements. 
+        # It's possible that that further conditional requirement change 
+        # a value set by non-conditional requirements. For example:
+        #
+        #    exe a : a.cpp : <threading>single <toolset>foo:<threading>multi ;
+        # 
+        # I'm not sure if this should be an error, or not, especially given that
+        #
+        #    <threading>single 
+        #
+        # might come from project's requirements.
+        unconditional = feature.expand(requirements.non_conditional())
+
+        context = context.refine(property_set.create(unconditional))
+
+        # We've collected properties that surely must be present in common
+        # properties. We now try to figure out what other properties
+        # should be added in order to satisfy rules (4)-(6) from the docs.
+    
+        conditionals = property_set.create(requirements.conditional())
+
+        # It's supposed that #conditionals iterations
+        # should be enough for properties to propagate along conditions in any
+        # direction.
+        max_iterations = len(conditionals.all()) +\
+                         len(requirements.get("<conditional>")) + 1
+    
+        added_requirements = []
+        current = context
+    
+        # It's assumed that ordinary conditional requirements can't add
+        # <indirect-conditional> properties, and that rules referred
+        # by <indirect-conditional> properties can't add new 
+        # <indirect-conditional> properties. So the list of indirect conditionals
+        # does not change.
+        indirect = requirements.get("<conditional>")
+    
+        ok = 0
+        for i in range(0, max_iterations):
+
+            e = conditionals.evaluate_conditionals(current).all()[:]
+        
+            # Evaluate indirect conditionals.
+            for i in indirect:
+                i = b2.util.jam_to_value_maybe(i)
+                if callable(i):
+                    # This is Python callable, yeah.
+                    e.extend(i(current))
+                else:
+                    # Name of bjam function. Because bjam is unable to handle
+                    # list of Property, pass list of strings.
+                    br = b2.util.call_jam_function(i[1:], [str(p) for p in current.all()])
+                    if br:
+                        e.extend(property.create_from_strings(br))
+
+            if e == added_requirements:
+                # If we got the same result, we've found final properties.
+                ok = 1
+                break
+            else:
+                # Oops, results of evaluation of conditionals has changed.
+                # Also 'current' contains leftover from previous evaluation.
+                # Recompute 'current' using initial properties and conditional
+                # requirements.
+                added_requirements = e
+                current = context.refine(property_set.create(feature.expand(e)))
+
+        if not ok:
+            self.manager().errors()("Can't evaluate conditional properties "
+                                    + str(conditionals))
+
+    
+        if what == "added":
+            return property_set.create(unconditional + added_requirements)
+        elif what == "refined":
+            return current
+        else:
+            self.manager().errors("Invalid value of the 'what' parameter")
+
+    def __common_properties2(self, build_request, requirements):
+        # This guarantees that default properties are present
+        # in result, unless they are overrided by some requirement.
+        # TODO: There is possibility that we've added <foo>bar, which is composite
+        # and expands to <foo2>bar2, but default value of <foo2> is not bar2,
+        # in which case it's not clear what to do.
+        #
+        build_request = build_request.add_defaults()
+        # Featured added by 'add-default' can be composite and expand
+        # to features without default values -- so they are not added yet.
+        # It could be clearer/faster to expand only newly added properties
+        # but that's not critical.
+        build_request = build_request.expand()
+      
+        return self.evaluate_requirements(requirements, build_request,
+                                          "refined")
+    
+    def match (self, property_set, debug):
+        """ Returns the alternative condition for this alternative, if
+            the condition is satisfied by 'property_set'.
+        """
+        # The condition is composed of all base non-conditional properties.
+        # It's not clear if we should expand 'self.requirements_' or not.
+        # For one thing, it would be nice to be able to put
+        #    <toolset>msvc-6.0 
+        # in requirements.
+        # On the other hand, if we have <variant>release in condition it 
+        # does not make sense to require <optimization>full to be in
+        # build request just to select this variant.
+        bcondition = self.requirements_.base ()
+        ccondition = self.requirements_.conditional ()
+        condition = b2.util.set.difference (bcondition, ccondition)
+
+        if debug:
+            print "    next alternative: required properties:", [str(p) for p in condition]
+        
+        if b2.util.set.contains (condition, property_set.all()):
+
+            if debug:
+                print "        matched"
+            
+            return condition
+
+        else:
+            return None
+
+
+    def generate_dependency_targets (self, target_ids, property_set):
+        targets = []
+        usage_requirements = []
+        for id in target_ids:
+                    
+            result = generate_from_reference(id, self.project_, property_set)
+            targets += result.targets()
+            usage_requirements += result.usage_requirements().all()
+
+        return (targets, usage_requirements)        
+    
+    def generate_dependency_properties(self, properties, ps):
+        """ Takes a target reference, which might be either target id
+            or a dependency property, and generates that target using
+            'property_set' as build request.
+
+            Returns a tuple (result, usage_requirements).
+        """
+        result_properties = []
+        usage_requirements = []
+        for p in properties:
+                   
+            result = generate_from_reference(p.value(), self.project_, ps)
+
+            for t in result.targets():
+                result_properties.append(property.Property(p.feature(), t))
+            
+            usage_requirements += result.usage_requirements().all()
+
+        return (result_properties, usage_requirements)        
+
+        
+
+
+    @user_error_checkpoint
+    def generate (self, ps):
+        """ Determines final build properties, generates sources,
+        and calls 'construct'. This method should not be
+        overridden.
+        """
+        self.manager_.errors().push_user_context(
+            "Generating target " + self.full_name(), self.user_context_)
+        
+        if self.manager().targets().logging():
+            self.manager().targets().log(
+                "Building target '%s'" % self.name_)
+            self.manager().targets().increase_indent ()
+            self.manager().targets().log(
+                "Build request: '%s'" % str (ps.raw ()))
+            cf = self.manager().command_line_free_features()
+            self.manager().targets().log(
+                "Command line free features: '%s'" % str (cf.raw ()))            
+            self.manager().targets().log(
+                "Target requirements: %s'" % str (self.requirements().raw ()))
+            
+        self.manager().targets().push_target(self)
+
+        if not self.generated_.has_key(ps):
+
+            # Apply free features form the command line.  If user
+            # said 
+            #   define=FOO
+            # he most likely want this define to be set for all compiles.
+            ps = ps.refine(self.manager().command_line_free_features())            
+            rproperties = self.common_properties (ps, self.requirements_)
+
+            self.manager().targets().log(
+                "Common properties are '%s'" % str (rproperties))
+          
+            if rproperties.get("<build>") != ["no"]:
+                
+                result = GenerateResult ()
+
+                properties = rproperties.non_dependency ()
+
+                (p, u) = self.generate_dependency_properties (rproperties.dependency (), rproperties)
+                properties += p
+                assert all(isinstance(p, property.Property) for p in properties)
+                usage_requirements = u
+
+                (source_targets, u) = self.generate_dependency_targets (self.sources_, rproperties)
+                usage_requirements += u
+
+                self.manager_.targets().log(
+                    "Usage requirements for '%s' are '%s'" % (self.name_, usage_requirements))
+
+                # FIXME:
+
+                rproperties = property_set.create(properties + usage_requirements)
+                usage_requirements = property_set.create (usage_requirements)
+
+                self.manager_.targets().log(
+                    "Build properties: '%s'" % str(rproperties))
+                
+                source_targets += rproperties.get('<source>')
+                
+                # We might get duplicate sources, for example if
+                # we link to two library which have the same <library> in
+                # usage requirements.
+                # Use stable sort, since for some targets the order is
+                # important. E.g. RUN_PY target need python source to come
+                # first.
+                source_targets = unique(source_targets, stable=True)
+
+                # FIXME: figure why this call messes up source_targets in-place
+                result = self.construct (self.name_, source_targets[:], rproperties)
+
+                if result:
+                    assert len(result) == 2
+                    gur = result [0]
+                    result = result [1]
+
+                    if self.always_:
+                        for t in result:
+                            t.always()
+
+                    s = self.create_subvariant (
+                        result,
+                        self.manager().virtual_targets().recent_targets(), ps,
+                        source_targets, rproperties, usage_requirements)
+                    self.manager().virtual_targets().clear_recent_targets()
+                    
+                    ur = self.compute_usage_requirements (s)
+                    ur = ur.add (gur)
+                    s.set_usage_requirements (ur)
+
+                    self.manager_.targets().log (
+                        "Usage requirements from '%s' are '%s'" %
+                        (self.name(), str(rproperties)))
+                    
+                    self.generated_[ps] = GenerateResult (ur, result)
+                else:
+                    self.generated_[ps] = GenerateResult (property_set.empty(), [])
+            else:
+                # If we just see <build>no, we cannot produce any reasonable
+                # diagnostics. The code that adds this property is expected
+                # to explain why a target is not built, for example using
+                # the configure.log-component-configuration function.
+
+                # If this target fails to build, add <build>no to properties
+                # to cause any parent target to fail to build.  Except that it
+                # - does not work now, since we check for <build>no only in
+                #   common properties, but not in properties that came from
+                #   dependencies
+                # - it's not clear if that's a good idea anyway.  The alias
+                #   target, for example, should not fail to build if a dependency
+                #   fails.                
+                self.generated_[ps] = GenerateResult(
+                    property_set.create(["<build>no"]), [])
+        else:
+            self.manager().targets().log ("Already built")
+
+        self.manager().targets().pop_target()
+        self.manager().targets().decrease_indent()
+
+        return self.generated_[ps]
+    
+    def compute_usage_requirements (self, subvariant):
+        """ Given the set of generated targets, and refined build 
+            properties, determines and sets appripriate usage requirements
+            on those targets.
+        """
+        rproperties = subvariant.build_properties ()
+        xusage_requirements =self.evaluate_requirements(
+            self.usage_requirements_, rproperties, "added")
+        
+        # We generate all dependency properties and add them,
+        # as well as their usage requirements, to result.
+        (r1, r2) = self.generate_dependency_properties(xusage_requirements.dependency (), rproperties)
+        extra = r1 + r2
+                
+        result = property_set.create (xusage_requirements.non_dependency () + extra)
+
+        # Propagate usage requirements we've got from sources, except
+        # for the <pch-header> and <pch-file> features.
+        #
+        # That feature specifies which pch file to use, and should apply
+        # only to direct dependents. Consider:
+        #
+        #   pch pch1 : ...
+        #   lib lib1 : ..... pch1 ;
+        #   pch pch2 : 
+        #   lib lib2 : pch2 lib1 ;
+        #
+        # Here, lib2 should not get <pch-header> property from pch1.
+        #
+        # Essentially, when those two features are in usage requirements,
+        # they are propagated only to direct dependents. We might need
+        # a more general mechanism, but for now, only those two
+        # features are special.
+        raw = subvariant.sources_usage_requirements().raw()
+        raw = property.change(raw, "<pch-header>", None);
+        raw = property.change(raw, "<pch-file>", None);              
+        result = result.add(property_set.create(raw))
+        
+        return result
+
+    def create_subvariant (self, root_targets, all_targets,
+                           build_request, sources,
+                           rproperties, usage_requirements):
+        """Creates a new subvariant-dg instances for 'targets'
+         - 'root-targets' the virtual targets will be returned to dependents
+         - 'all-targets' all virtual 
+              targets created while building this main target
+         - 'build-request' is property-set instance with
+         requested build properties"""
+         
+        for e in root_targets:
+            e.root (True)
+
+        s = Subvariant (self, build_request, sources,
+                        rproperties, usage_requirements, all_targets)
+        
+        for v in all_targets:
+            if not v.creating_subvariant():
+                v.creating_subvariant(s)
+                
+        return s
+        
+    def construct (self, name, source_targets, properties):
+        """ Constructs the virtual targets for this abstract targets and
+            the dependecy graph. Returns a tuple consisting of the properties and the list of virtual targets.
+            Should be overrided in derived classes.
+        """
+        raise BaseException ("method should be defined in derived classes")
+
+
+class TypedTarget (BasicTarget):
+    import generators
+    
+    def __init__ (self, name, project, type, sources, requirements, default_build, usage_requirements):
+        BasicTarget.__init__ (self, name, project, sources, requirements, default_build, usage_requirements)
+        self.type_ = type
+
+    def __jam_repr__(self):
+        return b2.util.value_to_jam(self)
+    
+    def type (self):
+        return self.type_
+            
+    def construct (self, name, source_targets, prop_set):
+
+        r = generators.construct (self.project_, name, self.type_, 
+                                  prop_set.add_raw(['<main-target-type>' + self.type_]),
+                                  source_targets, True)
+
+        if not r:
+            print "warning: Unable to construct '%s'" % self.full_name ()
+
+            # Are there any top-level generators for this type/property set.
+            if not generators.find_viable_generators (self.type_, prop_set):
+                print "error: no generators were found for type '" + self.type_ + "'"
+                print "error: and the requested properties"
+                print "error: make sure you've configured the needed tools"
+                print "See http://boost.org/boost-build2/doc/html/bbv2/advanced/configuration.html"
+                
+                print "To debug this problem, try the --debug-generators option."
+                sys.exit(1)
+        
+        return r
+
+def apply_default_build(property_set, default_build):
+    # 1. First, see what properties from default_build
+    # are already present in property_set. 
+
+    specified_features = set(p.feature() for p in property_set.all())
+
+    defaults_to_apply = []
+    for d in default_build.all():
+        if not d.feature() in specified_features:
+            defaults_to_apply.append(d)
+
+    # 2. If there's any defaults to be applied, form the new
+    # build request. Pass it throw 'expand-no-defaults', since
+    # default_build might contain "release debug", which will
+    # result in two property_sets.
+    result = []
+    if defaults_to_apply:
+
+        # We have to compress subproperties here to prevent
+        # property lists like:
+        #
+        #    <toolset>msvc <toolset-msvc:version>7.1 <threading>multi
+        #
+        # from being expanded into:
+        #
+        #    <toolset-msvc:version>7.1/<threading>multi
+        #    <toolset>msvc/<toolset-msvc:version>7.1/<threading>multi
+        #
+        # due to cross-product property combination.  That may
+        # be an indication that
+        # build_request.expand-no-defaults is the wrong rule
+        # to use here.
+        compressed = feature.compress_subproperties(property_set.all())
+
+        result = build_request.expand_no_defaults(
+            b2.build.property_set.create([p]) for p in (compressed + defaults_to_apply))
+
+    else:
+        result.append (property_set)
+
+    return result
+
+
+def create_typed_metatarget(name, type, sources, requirements, default_build, usage_requirements):
+    
+    from b2.manager import get_manager
+    t = get_manager().targets()
+    
+    project = get_manager().projects().current()
+        
+    return t.main_target_alternative(
+        TypedTarget(name, project, type,
+                    t.main_target_sources(sources, name),
+                    t.main_target_requirements(requirements, project),
+                    t.main_target_default_build(default_build, project),
+                    t.main_target_usage_requirements(usage_requirements, project)))
+
+
+def create_metatarget(klass, name, sources, requirements=[], default_build=[], usage_requirements=[]):
+    from b2.manager import get_manager
+    t = get_manager().targets()
+    
+    project = get_manager().projects().current()
+        
+    return t.main_target_alternative(
+        klass(name, project,
+              t.main_target_sources(sources, name),
+              t.main_target_requirements(requirements, project),
+              t.main_target_default_build(default_build, project),
+              t.main_target_usage_requirements(usage_requirements, project)))    
+
+def metatarget_function_for_class(class_):
+
+    @bjam_signature((["name"], ["sources", "*"], ["requirements", "*"],
+                     ["default_build", "*"], ["usage_requirements", "*"]))
+    def create_metatarget(name, sources, requirements = [], default_build = None, usage_requirements = []):
+
+        from b2.manager import get_manager
+        t = get_manager().targets()
+
+        project = get_manager().projects().current()
+        
+        return t.main_target_alternative(
+            class_(name, project,
+                   t.main_target_sources(sources, name),
+                   t.main_target_requirements(requirements, project),
+                   t.main_target_default_build(default_build, project),
+                   t.main_target_usage_requirements(usage_requirements, project)))
+
+    return create_metatarget
diff --git a/jam-files/boost-build/build/toolset.jam b/jam-files/boost-build/build/toolset.jam
new file mode 100644
index 00000000..f2036d99
--- /dev/null
+++ b/jam-files/boost-build/build/toolset.jam
@@ -0,0 +1,502 @@
+# Copyright 2003 Dave Abrahams
+# Copyright 2005 Rene Rivera
+# Copyright 2002, 2003, 2004, 2005, 2006 Vladimir Prus
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+#  Support for toolset definition.
+
+import errors ;
+import feature ;
+import generators ;
+import numbers ;
+import path ;
+import property ;
+import regex ;
+import sequence ;
+import set ;
+
+
+.flag-no = 1 ;
+
+.ignore-requirements = ;
+
+# This is used only for testing, to make sure we do not get random extra
+# elements in paths.
+if --ignore-toolset-requirements in [ modules.peek : ARGV ]
+{
+    .ignore-requirements = 1 ;
+}
+
+
+# Initializes an additional toolset-like module. First load the 'toolset-module'
+# and then calls its 'init' rule with trailing arguments.
+#
+rule using ( toolset-module : * )
+{
+    import $(toolset-module) ;
+    $(toolset-module).init $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ;
+}
+
+
+# Expands subfeatures in each property sets, e.g. '<toolset>gcc-3.2' will be
+# converted to '<toolset>gcc/<toolset-version>3.2'.
+#
+local rule normalize-condition ( property-sets * )
+{
+    local result ;
+    for local p in $(property-sets)
+    {
+        local split = [ feature.split $(p) ] ;
+        local expanded = [ feature.expand-subfeatures [ feature.split $(p) ] ] ;
+        result += $(expanded:J=/) ;
+    }
+    return $(result) ;
+}
+
+
+# Specifies if the 'flags' rule should check that the invoking module is the
+# same as the module we are setting the flag for. 'v' can be either 'checked' or
+# 'unchecked'. Subsequent call to 'pop-checking-for-flags-module' will restore
+# the setting that was in effect before calling this rule.
+#
+rule push-checking-for-flags-module ( v )
+{
+    .flags-module-checking = $(v) $(.flags-module-checking) ;
+}
+
+rule pop-checking-for-flags-module ( )
+{
+    .flags-module-checking = $(.flags-module-checking[2-]) ;
+}
+
+
+# Specifies the flags (variables) that must be set on targets under certain
+# conditions, described by arguments.
+#
+rule flags (
+    rule-or-module   # If contains a dot, should be a rule name. The flags will
+                     # be applied when that rule is used to set up build
+                     # actions.
+                     #
+                     # If does not contain dot, should be a module name. The
+                     # flag will be applied for all rules in that module. If
+                     # module for rule is different from the calling module, an
+                     # error is issued.
+
+    variable-name    # Variable that should be set on target.
+    condition * :    # A condition when this flag should be applied. Should be a
+                     # set of property sets. If one of those property sets is
+                     # contained in the build properties, the flag will be used.
+                     # Implied values are not allowed: "<toolset>gcc" should be
+                     # used, not just "gcc". Subfeatures, like in
+                     # "<toolset>gcc-3.2" are allowed. If left empty, the flag
+                     # will be used unconditionally.
+                     #
+                     # Propery sets may use value-less properties ('<a>'  vs.
+                     # '<a>value') to match absent properties. This allows to
+                     # separately match:
+                     #
+                     #   <architecture>/<address-model>64
+                     #   <architecture>ia64/<address-model>
+                     #
+                     # Where both features are optional. Without this syntax
+                     # we would be forced to define "default" values.
+
+    values * :       # The value to add to variable. If <feature> is specified,
+                     # then the value of 'feature' will be added.
+    unchecked ?      # If value 'unchecked' is passed, will not test that flags
+                     # are set for the calling module.
+    : hack-hack ?    # For
+                     #   flags rule OPTIONS <cxx-abi> : -model ansi
+                     # Treat <cxx-abi> as condition
+                     # FIXME: ugly hack.
+)
+{
+    local caller = [ CALLER_MODULE ] ;
+    if ! [ MATCH ".*([.]).*" : $(rule-or-module) ]
+       && [ MATCH "(Jamfile<.*)" : $(caller) ]
+    {
+        # Unqualified rule name, used inside Jamfile. Most likely used with
+        # 'make' or 'notfile' rules. This prevents setting flags on the entire
+        # Jamfile module (this will be considered as rule), but who cares?
+        # Probably, 'flags' rule should be split into 'flags' and
+        # 'flags-on-module'.
+        rule-or-module = $(caller).$(rule-or-module) ;
+    }
+    else
+    {
+        local module_ = [ MATCH "([^.]*).*" : $(rule-or-module) ] ;
+        if $(unchecked) != unchecked
+            && $(.flags-module-checking[1]) != unchecked
+            && $(module_) != $(caller)
+        {
+            errors.error "Module $(caller) attempted to set flags for module $(module_)" ;
+        }
+    }
+
+    if $(condition) && ! $(condition:G=) && ! $(hack-hack)
+    {
+        # We have condition in the form '<feature>', that is, without value.
+        # That is an older syntax:
+        #   flags gcc.link RPATH <dll-path> ;
+        # for compatibility, convert it to
+        #   flags gcc.link RPATH : <dll-path> ;
+        values = $(condition) ;
+        condition = ;
+    }
+
+    if $(condition)
+    {
+        property.validate-property-sets $(condition) ;
+        condition = [ normalize-condition $(condition) ] ;
+    }
+
+    add-flag $(rule-or-module) : $(variable-name) : $(condition) : $(values) ;
+}
+
+
+# Adds a new flag setting with the specified values. Does no checking.
+#
+local rule add-flag ( rule-or-module : variable-name : condition * : values * )
+{
+    .$(rule-or-module).flags += $(.flag-no) ;
+
+    # Store all flags for a module.
+    local module_ = [ MATCH "([^.]*).*" : $(rule-or-module) ] ;
+    .module-flags.$(module_) += $(.flag-no) ;
+    # Store flag-no -> rule-or-module mapping.
+    .rule-or-module.$(.flag-no) = $(rule-or-module) ;
+
+    .$(rule-or-module).variable.$(.flag-no) += $(variable-name) ;
+    .$(rule-or-module).values.$(.flag-no) += $(values) ;
+    .$(rule-or-module).condition.$(.flag-no) += $(condition) ;
+
+    .flag-no = [ numbers.increment $(.flag-no) ] ;
+}
+
+
+# Returns the first element of 'property-sets' which is a subset of
+# 'properties' or an empty list if no such element exists.
+#
+rule find-property-subset ( property-sets * : properties * )
+{
+    # Cut property values off.
+    local prop-keys = $(properties:G) ;
+
+    local result ;
+    for local s in $(property-sets)
+    {
+        if ! $(result)
+        {
+            # Handle value-less properties like '<architecture>' (compare with
+            # '<architecture>x86').
+
+            local set = [ feature.split $(s) ] ;
+
+            # Find the set of features that
+            # - have no property specified in required property set
+            # - are omitted in the build property set.
+            local default-props ;
+            for local i in $(set)
+            {
+                # If $(i) is a value-less property it should match default value
+                # of an optional property. See the first line in the example
+                # below:
+                #
+                #  property set     properties     result
+                # <a> <b>foo      <b>foo           match
+                # <a> <b>foo      <a>foo <b>foo    no match
+                # <a>foo <b>foo   <b>foo           no match
+                # <a>foo <b>foo   <a>foo <b>foo    match
+                if ! ( $(i:G=) || ( $(i:G) in $(prop-keys) ) )
+                {
+                    default-props += $(i) ;
+                }
+            }
+
+            if $(set) in $(properties) $(default-props)
+            {
+                result = $(s) ;
+            }
+        }
+    }
+    return $(result) ;
+}
+
+
+# Returns a value to be added to some flag for some target based on the flag's
+# value definition and the given target's property set.
+#
+rule handle-flag-value ( value * : properties * )
+{
+    local result ;
+    if $(value:G)
+    {
+        local matches = [ property.select $(value) : $(properties) ] ;
+        for local p in $(matches)
+        {
+            local att = [ feature.attributes $(p:G) ] ;
+            if dependency in $(att)
+            {
+                # The value of a dependency feature is a target and needs to be
+                # actualized.
+                result += [ $(p:G=).actualize ] ;
+            }
+            else if path in $(att) || free in $(att)
+            {
+                local values ;
+                # Treat features with && in the value specially -- each
+                # &&-separated element is considered a separate value. This is
+                # needed to handle searched libraries or include paths, which
+                # may need to be in a specific order.
+                if ! [ MATCH (&&) : $(p:G=) ]
+                {
+                    values = $(p:G=) ;
+                }
+                else
+                {
+                    values = [ regex.split $(p:G=) "&&" ] ;
+                }
+                if path in $(att)
+                {
+                    result += [ sequence.transform path.native : $(values) ] ;
+                }
+                else
+                {
+                    result += $(values) ;
+                }
+            }
+            else
+            {
+                result += $(p:G=) ;
+            }
+        }
+    }
+    else
+    {
+        result += $(value) ;
+    }
+    return $(result) ;
+}
+
+
+# Given a rule name and a property set, returns a list of interleaved variables
+# names and values which must be set on targets for that rule/property-set
+# combination.
+#
+rule set-target-variables-aux ( rule-or-module : property-set )
+{
+    local result ;
+    properties = [ $(property-set).raw ] ;
+    for local f in $(.$(rule-or-module).flags)
+    {
+        local variable = $(.$(rule-or-module).variable.$(f)) ;
+        local condition = $(.$(rule-or-module).condition.$(f)) ;
+        local values = $(.$(rule-or-module).values.$(f)) ;
+
+        if ! $(condition) ||
+            [ find-property-subset $(condition) : $(properties) ]
+        {
+            local processed ;
+            for local v in $(values)
+            {
+                # The value might be <feature-name> so needs special treatment.
+                processed += [ handle-flag-value $(v) : $(properties) ] ;
+            }
+            for local r in $(processed)
+            {
+                result += $(variable) $(r) ;
+            }
+        }
+    }
+
+    # Strip away last dot separated part and recurse.
+    local next = [ MATCH ^(.+)\\.([^\\.])* : $(rule-or-module) ] ;
+    if $(next)
+    {
+        result += [ set-target-variables-aux $(next[1]) : $(property-set) ] ;
+    }
+    return $(result) ;
+}
+
+
+rule set-target-variables ( rule-or-module targets + : property-set )
+{
+    properties = [ $(property-set).raw ] ;
+    local key = $(rule-or-module).$(property-set) ;
+    local settings = $(.stv.$(key)) ;
+    if ! $(settings)
+    {
+        settings = [ set-target-variables-aux $(rule-or-module) :
+            $(property-set) ] ;
+
+        if ! $(settings)
+        {
+            settings = none ;
+        }
+        .stv.$(key) = $(settings) ;
+    }
+
+    if $(settings) != none
+    {
+        local var-name = ;
+        for local name-or-value in $(settings)
+        {
+            if $(var-name)
+            {
+                $(var-name) on $(targets) += $(name-or-value) ;
+                var-name = ;
+            }
+            else
+            {
+                var-name = $(name-or-value) ;
+            }
+        }
+    }
+}
+
+
+# Make toolset 'toolset', defined in a module of the same name, inherit from
+# 'base'.
+# 1. The 'init' rule from 'base' is imported into 'toolset' with full name.
+#    Another 'init' is called, which forwards to the base one.
+# 2. All generators from 'base' are cloned. The ids are adjusted and <toolset>
+#    property in requires is adjusted too.
+# 3. All flags are inherited.
+# 4. All rules are imported.
+#
+rule inherit ( toolset : base )
+{
+    import $(base) ;
+    inherit-generators $(toolset) : $(base) ;
+    inherit-flags      $(toolset) : $(base) ;
+    inherit-rules      $(toolset) : $(base) ;
+}
+
+
+rule inherit-generators ( toolset properties * : base : generators-to-ignore * )
+{
+    properties ?= <toolset>$(toolset) ;
+    local base-generators = [ generators.generators-for-toolset $(base) ] ;
+    for local g in $(base-generators)
+    {
+        local id = [ $(g).id ] ;
+
+        if ! $(id) in $(generators-to-ignore)
+        {
+            # Some generator names have multiple periods in their name, so
+            # $(id:B=$(toolset)) does not generate the right new-id name. E.g.
+            # if id = gcc.compile.c++ then $(id:B=darwin) = darwin.c++, which is
+            # not what we want. Manually parse the base and suffix. If there is
+            # a better way to do this, I would love to see it. See also the
+            # register() rule in the generators module.
+            local base = $(id) ;
+            local suffix = "" ;
+            while $(base:S)
+            {
+                suffix = $(base:S)$(suffix) ;
+                base = $(base:B) ;
+            }
+            local new-id = $(toolset)$(suffix) ;
+
+            generators.register [ $(g).clone $(new-id) : $(properties) ] ;
+        }
+    }
+}
+
+
+# Brings all flag definitions from the 'base' toolset into the 'toolset'
+# toolset. Flag definitions whose conditions make use of properties in
+# 'prohibited-properties' are ignored. Do not confuse property and feature, for
+# example <debug-symbols>on and <debug-symbols>off, so blocking one of them does
+# not block the other one.
+#
+# The flag conditions are not altered at all, so if a condition includes a name,
+# or version of a base toolset, it will not ever match the inheriting toolset.
+# When such flag settings must be inherited, define a rule in base toolset
+# module and call it as needed.
+#
+rule inherit-flags ( toolset : base : prohibited-properties * : prohibited-vars * )
+{
+    for local f in $(.module-flags.$(base))
+    {
+        local rule-or-module = $(.rule-or-module.$(f)) ;
+        if ( [ set.difference
+            $(.$(rule-or-module).condition.$(f)) :
+                  $(prohibited-properties) ] 
+                  || ! $(.$(rule-or-module).condition.$(f)) 
+        ) && ( ! $(.$(rule-or-module).variable.$(f)) in $(prohibited-vars) )
+        {
+            local rule_ = [ MATCH "[^.]*\.(.*)" : $(rule-or-module) ] ;
+            local new-rule-or-module ;
+            if $(rule_)
+            {
+                new-rule-or-module = $(toolset).$(rule_) ;
+            }
+            else
+            {
+                new-rule-or-module = $(toolset) ;
+            }
+
+            add-flag
+                $(new-rule-or-module)
+                : $(.$(rule-or-module).variable.$(f))
+                : $(.$(rule-or-module).condition.$(f))
+                : $(.$(rule-or-module).values.$(f)) ;
+        }
+    }
+}
+
+
+rule inherit-rules ( toolset : base : localize ? )
+{
+    # It appears that "action" creates a local rule.
+    local base-generators = [ generators.generators-for-toolset $(base) ] ;
+    local rules ;
+    for local g in $(base-generators)
+    {
+        rules += [ MATCH "[^.]*\.(.*)" : [ $(g).rule-name ] ] ;
+    }
+    rules = [ sequence.unique $(rules) ] ;
+    IMPORT $(base) : $(rules) : $(toolset) : $(rules) : $(localize) ;
+    IMPORT $(toolset) : $(rules) : : $(toolset).$(rules) ;
+}
+
+
+# Return the list of global 'toolset requirements'. Those requirements will be
+# automatically added to the requirements of any main target.
+#
+rule requirements ( )
+{
+    return $(.requirements) ;
+}
+
+
+# Adds elements to the list of global 'toolset requirements'. The requirements
+# will be automatically added to the requirements for all main targets, as if
+# they were specified literally. For best results, all requirements added should
+# be conditional or indirect conditional.
+#
+rule add-requirements ( requirements * )
+{
+    if ! $(.ignore-requirements)
+    {
+        .requirements += $(requirements) ;
+    }
+}
+
+
+rule __test__ ( )
+{
+    import assert ;
+    local p = <b>0 <c>1 <d>2 <e>3 <f>4 ;
+    assert.result <c>1/<d>2/<e>3 : find-property-subset <c>1/<d>2/<e>3 <a>0/<b>0/<c>1 <d>2/<e>5 <a>9 : $(p) ;
+    assert.result : find-property-subset <a>0/<b>0/<c>9/<d>9/<e>5 <a>9 : $(p) ;
+
+    local p-set = <a>/<b> <a>0/<b> <a>/<b>1 <a>0/<b>1 ;
+    assert.result <a>/<b>   : find-property-subset $(p-set) :                ;
+    assert.result <a>0/<b>  : find-property-subset $(p-set) : <a>0      <c>2 ;
+    assert.result <a>/<b>1  : find-property-subset $(p-set) : <b>1      <c>2 ;
+    assert.result <a>0/<b>1 : find-property-subset $(p-set) : <a>0 <b>1      ;
+}
diff --git a/jam-files/boost-build/build/toolset.py b/jam-files/boost-build/build/toolset.py
new file mode 100644
index 00000000..b4267987
--- /dev/null
+++ b/jam-files/boost-build/build/toolset.py
@@ -0,0 +1,398 @@
+# Status: being ported by Vladimir Prus
+# Base revision:  40958
+#
+# Copyright 2003 Dave Abrahams 
+# Copyright 2005 Rene Rivera 
+# Copyright 2002, 2003, 2004, 2005, 2006 Vladimir Prus 
+# Distributed under the Boost Software License, Version 1.0. 
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) 
+
+""" Support for toolset definition.
+"""
+
+import feature, property, generators, property_set
+import b2.util.set
+from b2.util import cached, qualify_jam_action
+from b2.util.utility import *
+from b2.util import bjam_signature
+from b2.manager import get_manager
+
+__re_split_last_segment = re.compile (r'^(.+)\.([^\.])*')
+__re_two_ampersands = re.compile ('(&&)')
+__re_first_segment = re.compile ('([^.]*).*')
+__re_first_group = re.compile (r'[^.]*\.(.*)')
+
+# Flag is a mechanism to set a value 
+# A single toolset flag. Specifies that when certain
+# properties are in build property set, certain values
+# should be appended to some variable.
+#
+# A flag applies to a specific action in specific module.
+# The list of all flags for a module is stored, and each
+# flag further contains the name of the rule it applies
+# for, 
+class Flag:
+
+    def __init__(self, variable_name, values, condition, rule = None):
+        self.variable_name = variable_name
+        self.values = values
+        self.condition = condition        
+        self.rule = rule
+
+    def __str__(self):
+        return("Flag(" + str(self.variable_name) + ", " + str(self.values) +\
+               ", " + str(self.condition) + ", " + str(self.rule) + ")")
+
+def reset ():
+    """ Clear the module state. This is mainly for testing purposes.
+    """
+    global __module_flags, __flags, __stv
+    
+    # Mapping from module name to a list of all flags that apply
+    # to either that module directly, or to any rule in that module.
+    # Each element of the list is Flag instance.
+    # So, for module named xxx this might contain flags for 'xxx',
+    # for 'xxx.compile', for 'xxx.compile.c++', etc.
+    __module_flags = {}
+
+    # Mapping from specific rule or module name to a list of Flag instances
+    # that apply to that name.
+    # Say, it might contain flags for 'xxx.compile.c++'. If there are
+    # entries for module name 'xxx', they are flags for 'xxx' itself,
+    # not including any rules in that module.
+    __flags = {}
+    
+    # A cache for varaible settings. The key is generated from the rule name and the properties.
+    __stv = {}
+    
+reset ()
+
+# FIXME: --ignore-toolset-requirements
+# FIXME: using
+    
+# FIXME push-checking-for-flags-module ....
+# FIXME: investigate existing uses of 'hack-hack' parameter
+# in jam code.
+    
+@bjam_signature((["rule_or_module", "variable_name", "condition", "*"],
+                 ["values", "*"]))
+def flags(rule_or_module, variable_name, condition, values = []):
+    """ Specifies the flags (variables) that must be set on targets under certain
+        conditions, described by arguments.
+        rule_or_module:   If contains dot, should be a rule name.
+                          The flags will be applied when that rule is
+                          used to set up build actions.
+                          
+                          If does not contain dot, should be a module name.
+                          The flags will be applied for all rules in that
+                          module.
+                          If module for rule is different from the calling
+                          module, an error is issued.
+
+         variable_name:   Variable that should be set on target
+         
+         condition        A condition when this flag should be applied.
+                          Should be set of property sets. If one of
+                          those property sets is contained in build
+                          properties, the flag will be used.
+                          Implied values are not allowed:
+                          "<toolset>gcc" should be used, not just
+                          "gcc". Subfeatures, like in "<toolset>gcc-3.2"
+                          are allowed. If left empty, the flag will
+                          always used.
+                          
+                          Propery sets may use value-less properties 
+                          ('<a>'  vs. '<a>value') to match absent 
+                          properties. This allows to separately match
+                          
+                             <architecture>/<address-model>64
+                             <architecture>ia64/<address-model>
+                          
+                          Where both features are optional. Without this
+                          syntax we'd be forced to define "default" value.
+
+         values:          The value to add to variable. If <feature>
+                          is specified, then the value of 'feature' 
+                          will be added.
+    """
+    caller = bjam.caller()[:-1]
+    if not '.' in rule_or_module and caller.startswith("Jamfile"):
+        # Unqualified rule name, used inside Jamfile. Most likely used with
+        # 'make' or 'notfile' rules. This prevents setting flags on the entire
+        # Jamfile module (this will be considered as rule), but who cares?
+        # Probably, 'flags' rule should be split into 'flags' and
+        # 'flags-on-module'.
+        rule_or_module = qualify_jam_action(rule_or_module, caller)
+    else:
+        # FIXME: revive checking that we don't set flags for a different
+        # module unintentionally
+        pass
+                          
+    if condition and not replace_grist (condition, ''):
+        # We have condition in the form '<feature>', that is, without
+        # value. That's a previous syntax:
+        #
+        #   flags gcc.link RPATH <dll-path> ;
+        # for compatibility, convert it to
+        #   flags gcc.link RPATH : <dll-path> ;                
+        values = [ condition ]
+        condition = None
+    
+    if condition:
+        transformed = []
+        for c in condition:
+            # FIXME: 'split' might be a too raw tool here.
+            pl = [property.create_from_string(s) for s in c.split('/')]
+            pl = feature.expand_subfeatures(pl);
+            transformed.append(property_set.create(pl))
+        condition = transformed
+
+        property.validate_property_sets(condition)
+    
+    __add_flag (rule_or_module, variable_name, condition, values)
+
+def set_target_variables (manager, rule_or_module, targets, ps):
+    """
+    """
+    settings = __set_target_variables_aux(manager, rule_or_module, ps)
+        
+    if settings:
+        for s in settings:
+            for target in targets:
+                manager.engine ().set_target_variable (target, s [0], s[1], True)
+
+def find_satisfied_condition(conditions, ps):
+    """Returns the first element of 'property-sets' which is a subset of
+    'properties', or an empty list if no such element exists."""
+
+    features = set(p.feature() for p in ps.all())
+
+    for condition in conditions:
+
+        found_all = True
+        for i in condition.all():
+
+            found = False
+            if i.value():
+                found = i.value() in ps.get(i.feature())
+            else:            
+                # Handle value-less properties like '<architecture>' (compare with 
+                # '<architecture>x86').
+                # If $(i) is a value-less property it should match default 
+                # value of an optional property. See the first line in the 
+                # example below:
+                #
+                #  property set     properties     result
+                # <a> <b>foo      <b>foo           match
+                # <a> <b>foo      <a>foo <b>foo    no match
+                # <a>foo <b>foo   <b>foo           no match
+                # <a>foo <b>foo   <a>foo <b>foo    match
+                found = not i.feature() in features
+
+            found_all = found_all and found
+
+        if found_all:
+            return condition
+
+    return None
+    
+
+def register (toolset):
+    """ Registers a new toolset.
+    """
+    feature.extend('toolset', [toolset])
+
+def inherit_generators (toolset, properties, base, generators_to_ignore = []):
+    if not properties:
+        properties = [replace_grist (toolset, '<toolset>')]
+        
+    base_generators = generators.generators_for_toolset(base)
+    
+    for g in base_generators:
+        id = g.id()
+        
+        if not id in generators_to_ignore:
+            # Some generator names have multiple periods in their name, so
+            # $(id:B=$(toolset)) doesn't generate the right new_id name.
+            # e.g. if id = gcc.compile.c++, $(id:B=darwin) = darwin.c++,
+            # which is not what we want. Manually parse the base and suffix
+            # (if there's a better way to do this, I'd love to see it.)
+            # See also register in module generators.
+            (base, suffix) = split_action_id(id)
+
+            new_id = toolset + '.' + suffix
+
+            generators.register(g.clone(new_id, properties))
+
+def inherit_flags(toolset, base, prohibited_properties = []):
+    """Brings all flag definitions from the 'base' toolset into the 'toolset'
+    toolset. Flag definitions whose conditions make use of properties in
+    'prohibited-properties' are ignored. Don't confuse property and feature, for
+    example <debug-symbols>on and <debug-symbols>off, so blocking one of them does
+    not block the other one.
+    
+    The flag conditions are not altered at all, so if a condition includes a name,
+    or version of a base toolset, it won't ever match the inheriting toolset. When
+    such flag settings must be inherited, define a rule in base toolset module and
+    call it as needed."""
+    for f in __module_flags.get(base, []):
+        
+        if not f.condition or b2.util.set.difference(f.condition, prohibited_properties):
+            match = __re_first_group.match(f.rule)
+            rule_ = None
+            if match:
+                rule_ = match.group(1)
+
+            new_rule_or_module = ''
+
+            if rule_:
+                new_rule_or_module = toolset + '.' + rule_
+            else:
+                new_rule_or_module = toolset
+
+            __add_flag (new_rule_or_module, f.variable_name, f.condition, f.values)
+
+def inherit_rules (toolset, base):
+    pass
+    # FIXME: do something about this.
+#    base_generators = generators.generators_for_toolset (base)
+
+#    import action
+
+#    ids = []
+#    for g in base_generators:
+#        (old_toolset, id) = split_action_id (g.id ())
+#        ids.append (id) ;
+
+#    new_actions = []
+
+#    engine = get_manager().engine()
+    # FIXME: do this!
+#    for action in engine.action.values():
+#        pass
+#        (old_toolset, id) = split_action_id(action.action_name)
+#    
+#        if old_toolset == base:
+#            new_actions.append ((id, value [0], value [1]))
+#
+#    for a in new_actions:
+#        action.register (toolset + '.' + a [0], a [1], a [2])
+        
+    # TODO: how to deal with this?
+#       IMPORT $(base) : $(rules) : $(toolset) : $(rules) : localized ;
+#       # Import the rules to the global scope
+#       IMPORT $(toolset) : $(rules) : : $(toolset).$(rules) ;
+#   }
+#   
+
+######################################################################################
+# Private functions
+
+@cached
+def __set_target_variables_aux (manager, rule_or_module, ps):
+    """ Given a rule name and a property set, returns a list of tuples of
+        variables names and values, which must be set on targets for that
+        rule/properties combination. 
+    """
+    result = []
+
+    for f in __flags.get(rule_or_module, []):
+           
+        if not f.condition or find_satisfied_condition (f.condition, ps):
+            processed = []
+            for v in f.values:
+                # The value might be <feature-name> so needs special
+                # treatment.
+                processed += __handle_flag_value (manager, v, ps)
+
+            for r in processed:
+                result.append ((f.variable_name, r))
+    
+    # strip away last dot separated part and recurse.
+    next = __re_split_last_segment.match(rule_or_module)
+    
+    if next:
+        result.extend(__set_target_variables_aux(
+            manager, next.group(1), ps))
+
+    return result
+
+def __handle_flag_value (manager, value, ps):
+    result = []
+    
+    if get_grist (value):
+        f = feature.get(value)
+        values = ps.get(f)
+        
+        for value in values:
+
+            if f.dependency():
+                # the value of a dependency feature is a target
+                # and must be actualized
+                result.append(value.actualize())
+
+            elif f.path() or f.free():
+                
+                # Treat features with && in the value
+                # specially -- each &&-separated element is considered
+                # separate value. This is needed to handle searched
+                # libraries, which must be in specific order.
+                if not __re_two_ampersands.search(value):
+                    result.append(value)
+
+                else:
+                    result.extend(value.split ('&&'))
+            else:
+                result.append (ungristed)
+    else:
+        result.append (value)
+
+    return result
+
+def __add_flag (rule_or_module, variable_name, condition, values):
+    """ Adds a new flag setting with the specified values.
+        Does no checking.
+    """
+    f = Flag(variable_name, values, condition, rule_or_module)
+    
+    # Grab the name of the module
+    m = __re_first_segment.match (rule_or_module)
+    assert m
+    module = m.group(1)
+
+    __module_flags.setdefault(m, []).append(f)
+    __flags.setdefault(rule_or_module, []).append(f)
+
+__requirements = []
+
+def requirements():
+    """Return the list of global 'toolset requirements'.
+    Those requirements will be automatically added to the requirements of any main target."""
+    return __requirements
+
+def add_requirements(requirements):
+    """Adds elements to the list of global 'toolset requirements'. The requirements
+    will be automatically added to the requirements for all main targets, as if
+    they were specified literally. For best results, all requirements added should
+    be conditional or indirect conditional."""
+    
+    #if ! $(.ignore-requirements)
+    #{
+    print "XXXX", requirements
+    __requirements.extend(requirements)
+    #}
+         
+# Make toolset 'toolset', defined in a module of the same name,
+# inherit from 'base'
+# 1. The 'init' rule from 'base' is imported into 'toolset' with full
+#    name. Another 'init' is called, which forwards to the base one.
+# 2. All generators from 'base' are cloned. The ids are adjusted and 
+#    <toolset> property in requires is adjusted too
+# 3. All flags are inherited
+# 4. All rules are imported.
+def inherit(toolset, base):
+    get_manager().projects().load_module(base, []);
+
+    inherit_generators(toolset, [], base)
+    inherit_flags(toolset, base)
+    inherit_rules(toolset, base)
diff --git a/jam-files/boost-build/build/type.jam b/jam-files/boost-build/build/type.jam
new file mode 100644
index 00000000..1a7a5782
--- /dev/null
+++ b/jam-files/boost-build/build/type.jam
@@ -0,0 +1,425 @@
+# Copyright 2002, 2003 Dave Abrahams
+# Copyright 2002, 2003, 2004, 2005, 2006 Vladimir Prus
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+#  Deals with target type declaration and defines target class which supports
+#  typed targets.
+
+import "class" : new ;
+import errors ;
+import feature ;
+import generators : * ;
+import project ;
+import property ;
+import scanner ;
+import os ;
+
+# The following import would create a circular dependency:
+# project -> project-root -> builtin -> type -> targets -> project
+# import targets ;
+
+# The feature is optional so it would never get added implicitly. It is used
+# only for internal purposes and in all cases we want to use it explicitly.
+feature.feature target-type : : composite optional ;
+
+feature.feature main-target-type : : optional incidental ;
+feature.feature base-target-type : : composite optional free ;
+
+
+# Registers a target type, possible derived from a 'base-type'. Providing a list
+# of 'suffixes' here is a shortcut for separately calling the register-suffixes
+# rule with the given suffixes and the set-generated-target-suffix rule with the
+# first given suffix.
+#
+rule register ( type : suffixes * : base-type ? )
+{
+    # Type names cannot contain hyphens, because when used as feature-values
+    # they would be interpreted as composite features which need to be
+    # decomposed.
+    switch $(type)
+    {
+        case *-* : errors.error "type name \"$(type)\" contains a hyphen" ;
+    }
+
+    if $(type) in $(.types)
+    {
+        errors.error "Type $(type) is already registered." ;
+    }
+    else
+    {
+        .types += $(type) ;
+        .base.$(type) = $(base-type) ;
+        .derived.$(base-type) += $(type) ;
+
+        if $(suffixes)-is-not-empty
+        {
+            # Specify mapping from suffixes to type.
+            register-suffixes $(suffixes) : $(type) ;
+            # By default generated targets of 'type' will use the first of
+            #'suffixes'. This may be overriden.
+            set-generated-target-suffix $(type) : : $(suffixes[1]) ;
+        }
+
+        feature.extend target-type      : $(type) ;
+        feature.extend main-target-type : $(type) ;
+        feature.extend base-target-type : $(type) ;
+
+        feature.compose <target-type>$(type) : $(base-type:G=<base-target-type>) ;
+        feature.compose <base-target-type>$(type) : <base-target-type>$(base-type) ;
+
+        # We used to declare the main target rule only when a 'main' parameter
+        # has been specified. However, it is hard to decide that a type will
+        # *never* need a main target rule and so from time to time we needed to
+        # make yet another type 'main'. So now a main target rule is defined for
+        # each type.
+        main-rule-name = [ type-to-rule-name $(type) ] ;
+        .main-target-type.$(main-rule-name) = $(type) ;
+        IMPORT $(__name__) : main-target-rule : : $(main-rule-name) ;
+
+        # Adding a new derived type affects generator selection so we need to
+        # make the generator selection module update any of its cached
+        # information related to a new derived type being defined.
+        generators.update-cached-information-with-a-new-type $(type) ;
+    }
+}
+
+
+# Given a type, returns the name of the main target rule which creates targets
+# of that type.
+#
+rule type-to-rule-name ( type )
+{
+    # Lowercase everything. Convert underscores to dashes.
+    import regex ;
+    local n = [ regex.split $(type:L) "_" ] ;
+    return $(n:J=-) ;
+}
+
+
+# Given a main target rule name, returns the type for which it creates targets.
+#
+rule type-from-rule-name ( rule-name )
+{
+    return $(.main-target-type.$(rule-name)) ;
+}
+
+
+# Specifies that files with suffix from 'suffixes' be recognized as targets of
+# type 'type'. Issues an error if a different type is already specified for any
+# of the suffixes.
+#
+rule register-suffixes ( suffixes + : type )
+{
+    for local s in $(suffixes)
+    {
+        if ! $(.type.$(s))
+        {
+            .type.$(s) = $(type) ;
+        }
+        else if $(.type.$(s)) != $(type)
+        {
+            errors.error Attempting to specify multiple types for suffix
+                \"$(s)\" : "Old type $(.type.$(s)), New type $(type)" ;
+        }
+    }
+}
+
+
+# Returns true iff type has been registered.
+#
+rule registered ( type )
+{
+    if $(type) in $(.types)
+    {
+        return true ;
+    }
+}
+
+
+# Issues an error if 'type' is unknown.
+#
+rule validate ( type )
+{
+    if ! [ registered $(type) ]
+    {
+        errors.error "Unknown target type $(type)" ;
+    }
+}
+
+
+# Sets a scanner class that will be used for this 'type'.
+#
+rule set-scanner ( type : scanner )
+{
+    validate $(type) ;
+    .scanner.$(type) = $(scanner) ;
+}
+
+
+# Returns a scanner instance appropriate to 'type' and 'properties'.
+#
+rule get-scanner ( type : property-set )
+{
+    if $(.scanner.$(type))
+    {
+        return [ scanner.get $(.scanner.$(type)) : $(property-set) ] ;
+    }
+}
+
+
+# Returns a base type for the given type or nothing in case the given type is
+# not derived.
+#
+rule base ( type )
+{
+    return $(.base.$(type)) ;
+}
+
+
+# Returns the given type and all of its base types in order of their distance
+# from type.
+#
+rule all-bases ( type )
+{
+    local result = $(type) ;
+    while $(type)
+    {
+        type = [ base $(type) ] ;
+        result += $(type) ;
+    }
+    return $(result) ;
+}
+
+
+# Returns the given type and all of its derived types in order of their distance
+# from type.
+#
+rule all-derived ( type )
+{
+    local result = $(type) ;
+    for local d in $(.derived.$(type))
+    {
+        result += [ all-derived $(d) ] ;
+    }
+    return $(result) ;
+}
+
+
+# Returns true if 'type' is equal to 'base' or has 'base' as its direct or
+# indirect base.
+#
+rule is-derived ( type base )
+{
+    if $(base) in [ all-bases $(type) ]
+    {
+        return true ;
+    }
+}
+
+# Returns true if 'type' is either derived from or is equal to 'base'.
+#
+# TODO: It might be that is-derived and is-subtype were meant to be different
+# rules - one returning true for type = base and one not, but as currently
+# implemented they are actually the same. Clean this up.
+#
+rule is-subtype ( type base )
+{
+    return [ is-derived $(type) $(base) ] ;
+}
+
+
+# Store suffixes for generated targets.
+.suffixes = [ new property-map ] ;
+
+# Store prefixes for generated targets (e.g. "lib" for library).
+.prefixes = [ new property-map ] ;
+
+
+# Sets a file suffix to be used when generating a target of 'type' with the
+# specified properties. Can be called with no properties if no suffix has
+# already been specified for the 'type'. The 'suffix' parameter can be an empty
+# string ("") to indicate that no suffix should be used.
+#
+# Note that this does not cause files with 'suffix' to be automatically
+# recognized as being of 'type'. Two different types can use the same suffix for
+# their generated files but only one type can be auto-detected for a file with
+# that suffix. User should explicitly specify which one using the
+# register-suffixes rule.
+#
+rule set-generated-target-suffix ( type : properties * : suffix )
+{
+    set-generated-target-ps suffix : $(type) : $(properties) : $(suffix) ;
+}
+
+
+# Change the suffix previously registered for this type/properties combination.
+# If suffix is not yet specified, sets it.
+#
+rule change-generated-target-suffix ( type : properties * : suffix )
+{
+    change-generated-target-ps suffix : $(type) : $(properties) : $(suffix) ;
+}
+
+
+# Returns the suffix used when generating a file of 'type' with the given
+# properties.
+#
+rule generated-target-suffix ( type : property-set )
+{
+    return [ generated-target-ps suffix : $(type) : $(property-set) ] ;
+}
+
+
+# Sets a target prefix that should be used when generating targets of 'type'
+# with the specified properties. Can be called with empty properties if no
+# prefix for 'type' has been specified yet.
+#
+# The 'prefix' parameter can be empty string ("") to indicate that no prefix
+# should be used.
+#
+# Usage example: library names use the "lib" prefix on unix.
+#
+rule set-generated-target-prefix ( type : properties * : prefix )
+{
+    set-generated-target-ps prefix : $(type) : $(properties) : $(prefix) ;
+}
+
+
+# Change the prefix previously registered for this type/properties combination.
+# If prefix is not yet specified, sets it.
+#
+rule change-generated-target-prefix ( type : properties * : prefix )
+{
+    change-generated-target-ps prefix : $(type) : $(properties) : $(prefix) ;
+}
+
+
+rule generated-target-prefix ( type : property-set )
+{
+    return [ generated-target-ps prefix : $(type) : $(property-set) ] ;
+}
+
+
+# Common rules for prefix/suffix provisioning follow.
+
+local rule set-generated-target-ps ( ps : type : properties * : psval )
+{
+    properties = <target-type>$(type) $(properties) ;
+    $(.$(ps)es).insert $(properties) : $(psval) ;
+}
+
+
+local rule change-generated-target-ps ( ps : type : properties * : psval )
+{
+    properties = <target-type>$(type) $(properties) ;
+    local prev = [ $(.$(ps)es).find-replace $(properties) : $(psval) ] ;
+    if ! $(prev)
+    {
+        set-generated-target-ps $(ps) : $(type) : $(properties) : $(psval) ;
+    }
+}
+
+
+# Returns either prefix or suffix (as indicated by 'ps') that should be used
+# when generating a target of 'type' with the specified properties. Parameter
+# 'ps' can be either "prefix" or "suffix".  If no prefix/suffix is specified for
+# 'type', returns prefix/suffix for base type, if any.
+#
+local rule generated-target-ps-real ( ps : type : properties * )
+{
+    local result ;
+    local found ;
+    while $(type) && ! $(found)
+    {
+        result = [ $(.$(ps)es).find <target-type>$(type) $(properties) ] ;
+        # If the prefix/suffix is explicitly set to an empty string, we consider
+        # prefix/suffix to be found. If we were not to compare with "", there
+        # would be no way to specify an empty prefix/suffix.
+        if $(result)-is-not-empty
+        {
+            found = true ;
+        }
+        type = $(.base.$(type)) ;
+    }
+    if $(result) = ""
+    {
+        result = ;
+    }
+    return $(result) ;
+}
+
+
+local rule generated-target-ps ( ps : type : property-set )
+{
+    local key = .$(ps).$(type).$(property-set) ;
+    local v = $($(key)) ;
+    if ! $(v)
+    {
+        v = [ generated-target-ps-real $(ps) : $(type) : [ $(property-set).raw ]
+            ] ;
+        if ! $(v)
+        {
+            v = none ;
+        }
+        $(key) = $(v) ;
+    }
+
+    if $(v) != none
+    {
+        return $(v) ;
+    }
+}
+
+
+# Returns file type given its name. If there are several dots in filename, tries
+# each suffix. E.g. for name of "file.so.1.2" suffixes "2", "1", and "so" will
+# be tried.
+#
+rule type ( filename )
+{
+    if [ os.name ] in NT CYGWIN
+    {
+        filename = $(filename:L) ;
+    }    
+    local type ;
+    while ! $(type) && $(filename:S)
+    {
+        local suffix = $(filename:S) ;
+        type = $(.type$(suffix)) ;
+        filename = $(filename:S=) ;
+    }
+    return $(type) ;
+}
+
+
+# Rule used to construct all main targets. Note that this rule gets imported
+# into the global namespace under different alias names and the exact target
+# type to construct is selected based on the alias used to actually invoke this
+# rule.
+#
+rule main-target-rule ( name : sources * : requirements * : default-build * :
+    usage-requirements * )
+{
+    # First discover the required target type based on the exact alias used to
+    # invoke this rule.
+    local bt = [ BACKTRACE 1 ] ;
+    local rulename = $(bt[4]) ;
+    local target-type = [ type-from-rule-name $(rulename) ] ;
+
+    # This is a circular module dependency and so must be imported here.
+    import targets ;
+
+    return [ targets.create-typed-target $(target-type) : [ project.current ] :
+        $(name) : $(sources) : $(requirements) : $(default-build) :
+        $(usage-requirements) ] ;
+}
+
+
+rule __test__ ( )
+{
+    import assert ;
+
+    # TODO: Add tests for all the is-derived, is-base & related type relation
+    # checking rules.
+}
diff --git a/jam-files/boost-build/build/type.py b/jam-files/boost-build/build/type.py
new file mode 100644
index 00000000..ddb7ba09
--- /dev/null
+++ b/jam-files/boost-build/build/type.py
@@ -0,0 +1,313 @@
+# Status: ported.
+# Base revision: 45462.
+
+#  Copyright (C) Vladimir Prus 2002. Permission to copy, use, modify, sell and
+#  distribute this software is granted provided this copyright notice appears in
+#  all copies. This software is provided "as is" without express or implied
+#  warranty, and with no claim as to its suitability for any purpose.
+
+
+
+import re
+import os
+import os.path
+from b2.util.utility import replace_grist, os_name
+from b2.exceptions import *
+from b2.build import feature, property, scanner
+from b2.util import bjam_signature
+
+
+__re_hyphen = re.compile ('-')
+
+def __register_features ():
+    """ Register features need by this module.
+    """
+    # The feature is optional so that it is never implicitly added.
+    # It's used only for internal purposes, and in all cases we
+    # want to explicitly use it.
+    feature.feature ('target-type', [], ['composite', 'optional'])
+    feature.feature ('main-target-type', [], ['optional', 'incidental'])
+    feature.feature ('base-target-type', [], ['composite', 'optional', 'free'])
+
+def reset ():
+    """ Clear the module state. This is mainly for testing purposes.
+        Note that this must be called _after_ resetting the module 'feature'.
+    """    
+    global __prefixes_suffixes, __suffixes_to_types, __types, __rule_names_to_types, __target_suffixes_cache
+    
+    __register_features ()
+
+    # Stores suffixes for generated targets.
+    __prefixes_suffixes = [property.PropertyMap(), property.PropertyMap()]
+    
+    # Maps suffixes to types
+    __suffixes_to_types = {}
+    
+    # A map with all the registered types, indexed by the type name
+    # Each entry is a dictionary with following values:
+    # 'base': the name of base type or None if type has no base
+    # 'derived': a list of names of type which derive from this one
+    # 'scanner': the scanner class registered for this type, if any
+    __types = {}
+
+    # Caches suffixes for targets with certain properties.
+    __target_suffixes_cache = {}
+    
+reset ()
+
+@bjam_signature((["type"], ["suffixes", "*"], ["base_type", "?"]))
+def register (type, suffixes = [], base_type = None):
+    """ Registers a target type, possibly derived from a 'base-type'. 
+        If 'suffixes' are provided, they list all the suffixes that mean a file is of 'type'.
+        Also, the first element gives the suffix to be used when constructing and object of
+        'type'.
+        type: a string
+        suffixes: None or a sequence of strings
+        base_type: None or a string
+    """
+    # Type names cannot contain hyphens, because when used as
+    # feature-values they will be interpreted as composite features
+    # which need to be decomposed.
+    if __re_hyphen.search (type):
+        raise BaseException ('type name "%s" contains a hyphen' % type)
+    
+    if __types.has_key (type):
+        raise BaseException ('Type "%s" is already registered.' % type)
+
+    entry = {}
+    entry ['base'] = base_type
+    entry ['derived'] = []
+    entry ['scanner'] = None
+    __types [type] = entry
+    
+    if base_type:
+        __types [base_type]['derived'].append (type)
+
+    if len (suffixes) > 0:
+        # Generated targets of 'type' will use the first of 'suffixes'
+        # (this may be overriden)
+        set_generated_target_suffix (type, [], suffixes [0])
+        
+        # Specify mapping from suffixes to type
+        register_suffixes (suffixes, type)
+    
+    feature.extend('target-type', [type])
+    feature.extend('main-target-type', [type])
+    feature.extend('base-target-type', [type])
+
+    if base_type:
+        feature.compose ('<target-type>' + type, replace_grist (base_type, '<base-target-type>'))
+        feature.compose ('<base-target-type>' + type, '<base-target-type>' + base_type)
+
+    import b2.build.generators as generators
+    # Adding a new derived type affects generator selection so we need to
+    # make the generator selection module update any of its cached
+    # information related to a new derived type being defined.
+    generators.update_cached_information_with_a_new_type(type)
+
+    # FIXME: resolving recursive dependency.
+    from b2.manager import get_manager
+    get_manager().projects().project_rules().add_rule_for_type(type)
+
+# FIXME: quick hack.
+def type_from_rule_name(rule_name):
+    return rule_name.upper().replace("-", "_")
+
+
+def register_suffixes (suffixes, type):
+    """ Specifies that targets with suffix from 'suffixes' have the type 'type'. 
+        If a different type is already specified for any of syffixes, issues an error.
+    """
+    for s in suffixes:
+        if __suffixes_to_types.has_key (s):
+            old_type = __suffixes_to_types [s]
+            if old_type != type:
+                raise BaseException ('Attempting to specify type for suffix "%s"\nOld type: "%s", New type "%s"' % (s, old_type, type))
+        else:
+            __suffixes_to_types [s] = type
+
+def registered (type):
+    """ Returns true iff type has been registered.
+    """
+    return __types.has_key (type)
+
+def validate (type):
+    """ Issues an error if 'type' is unknown.
+    """
+    if not registered (type):
+        raise BaseException ("Unknown target type '%s'" % type)
+
+def set_scanner (type, scanner):
+    """ Sets a scanner class that will be used for this 'type'.
+    """
+    validate (type)
+    __types [type]['scanner'] = scanner
+
+def get_scanner (type, prop_set):
+    """ Returns a scanner instance appropriate to 'type' and 'property_set'.
+    """
+    if registered (type):
+        scanner_type = __types [type]['scanner']
+        if scanner_type:
+            return scanner.get (scanner_type, prop_set.raw ())
+            pass
+            
+    return None
+
+def base(type):
+    """Returns a base type for the given type or nothing in case the given type is
+    not derived."""
+
+    return __types[type]['base']
+
+def all_bases (type):
+    """ Returns type and all of its bases, in the order of their distance from type.
+    """
+    result = []
+    while type:
+        result.append (type)
+        type = __types [type]['base']
+
+    return result
+
+def all_derived (type):
+    """ Returns type and all classes that derive from it, in the order of their distance from type.
+    """
+    result = [type]
+    for d in __types [type]['derived']:
+        result.extend (all_derived (d))
+
+    return result
+
+def is_derived (type, base):
+    """ Returns true if 'type' is 'base' or has 'base' as its direct or indirect base.
+    """
+    # TODO: this isn't very efficient, especially for bases close to type
+    if base in all_bases (type):
+        return True
+    else: 
+        return False
+
+def is_subtype (type, base):
+    """ Same as is_derived. Should be removed.
+    """
+    # TODO: remove this method
+    return is_derived (type, base)
+
+@bjam_signature((["type"], ["properties", "*"], ["suffix"]))
+def set_generated_target_suffix (type, properties, suffix):
+    """ Sets a target suffix that should be used when generating target 
+        of 'type' with the specified properties. Can be called with
+        empty properties if no suffix for 'type' was specified yet.
+        This does not automatically specify that files 'suffix' have
+        'type' --- two different types can use the same suffix for
+        generating, but only one type should be auto-detected for
+        a file with that suffix. User should explicitly specify which
+        one.
+
+        The 'suffix' parameter can be empty string ("") to indicate that
+        no suffix should be used.
+    """
+    set_generated_target_ps(1, type, properties, suffix)
+
+
+    
+def change_generated_target_suffix (type, properties, suffix):
+    """ Change the suffix previously registered for this type/properties 
+        combination. If suffix is not yet specified, sets it.
+    """
+    change_generated_target_ps(1, type, properties, suffix)
+
+def generated_target_suffix(type, properties):
+    return generated_target_ps(1, type, properties)
+
+# Sets a target prefix that should be used when generating targets of 'type'
+# with the specified properties. Can be called with empty properties if no
+# prefix for 'type' has been specified yet.
+#
+# The 'prefix' parameter can be empty string ("") to indicate that no prefix
+# should be used.
+#
+# Usage example: library names use the "lib" prefix on unix.
+@bjam_signature((["type"], ["properties", "*"], ["suffix"]))
+def set_generated_target_prefix(type, properties, prefix):
+    set_generated_target_ps(0, type, properties, prefix)
+
+# Change the prefix previously registered for this type/properties combination.
+# If prefix is not yet specified, sets it.
+def change_generated_target_prefix(type, properties, prefix):
+    change_generated_target_ps(0, type, properties, prefix)
+
+def generated_target_prefix(type, properties):
+    return generated_target_ps(0, type, properties)
+
+def set_generated_target_ps(is_suffix, type, properties, val):
+    properties.append ('<target-type>' + type)
+    __prefixes_suffixes[is_suffix].insert (properties, val)
+
+def change_generated_target_ps(is_suffix, type, properties, val):
+    properties.append ('<target-type>' + type)
+    prev = __prefixes_suffixes[is_suffix].find_replace(properties, val)
+    if not prev:
+        set_generated_target_ps(is_suffix, type, properties, val)
+
+# Returns either prefix or suffix (as indicated by 'is_suffix') that should be used
+# when generating a target of 'type' with the specified properties.
+# If no prefix/suffix is specified for 'type', returns prefix/suffix for
+# base type, if any.
+def generated_target_ps_real(is_suffix, type, properties):
+
+    result = ''
+    found = False
+    while type and not found:
+        result = __prefixes_suffixes[is_suffix].find (['<target-type>' + type] + properties)
+
+        # Note that if the string is empty (""), but not null, we consider
+        # suffix found.  Setting prefix or suffix to empty string is fine.
+        if result is not None:
+            found = True
+
+        type = __types [type]['base']
+
+    if not result:
+        result = ''
+    return result
+
+def generated_target_ps(is_suffix, type, prop_set):
+    """ Returns suffix that should be used when generating target of 'type',
+        with the specified properties. If not suffix were specified for
+        'type', returns suffix for base type, if any.
+    """
+    key = (is_suffix, type, prop_set)
+    v = __target_suffixes_cache.get(key, None)
+
+    if not v:
+        v = generated_target_ps_real(is_suffix, type, prop_set.raw())
+        __target_suffixes_cache [key] = v
+
+    return v
+
+def type(filename):
+    """ Returns file type given it's name. If there are several dots in filename,
+        tries each suffix. E.g. for name of "file.so.1.2" suffixes "2", "1", and 
+        "so"  will be tried.
+    """
+    while 1:
+        filename, suffix = os.path.splitext (filename)
+        if not suffix: return None
+        suffix = suffix[1:]
+        
+        if __suffixes_to_types.has_key(suffix):
+            return __suffixes_to_types[suffix]
+
+# NOTE: moved from tools/types/register
+def register_type (type, suffixes, base_type = None, os = []):
+    """ Register the given type on the specified OSes, or on remaining OSes
+        if os is not specified.  This rule is injected into each of the type
+        modules for the sake of convenience.
+    """
+    if registered (type):
+        return
+
+    if not os or os_name () in os:
+        register (type, suffixes, base_type)
diff --git a/jam-files/boost-build/build/version.jam b/jam-files/boost-build/build/version.jam
new file mode 100644
index 00000000..7626ddda
--- /dev/null
+++ b/jam-files/boost-build/build/version.jam
@@ -0,0 +1,161 @@
+# Copyright 2002, 2003, 2004, 2006 Vladimir Prus
+# Copyright 2008 Jurko Gospodnetic
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+import errors ;
+import numbers ;
+
+major = "2011" ;
+minor = "04" ;
+
+rule boost-build ( )
+{
+    return "$(major).$(minor)-svn" ;
+}
+
+rule print ( )
+{
+    if [ verify-engine-version ]
+    {        
+        ECHO "Boost.Build" [ boost-build ] ;
+    }    
+}
+
+rule verify-engine-version ( )
+{
+    local v = [ modules.peek : JAM_VERSION ] ;
+    
+    if $(v[1]) != $(major) || $(v[2]) != $(minor)
+    {
+        local argv = [ modules.peek : ARGV ] ;
+        local e = $(argv[1]) ;
+        local l = [ modules.binding version ] ;
+        l = $(l:D) ;
+        l = $(l:D) ;
+        ECHO "warning: mismatched versions of Boost.Build engine and core" ;
+        ECHO "warning: Boost.Build engine ($(e)) is $(v:J=.)" ;
+        ECHO "warning: Boost.Build core (at $(l)) is" [ boost-build ] ;
+    }
+    else
+    {
+        return true ;
+    }    
+}
+
+
+
+# Utility rule for testing whether all elements in a sequence are equal to 0.
+#
+local rule is-all-zeroes ( sequence * )
+{
+    local result = "true" ;
+    for local e in $(sequence)
+    {
+        if $(e) != "0"
+        {
+            result = "" ;
+        }
+    }
+    return $(result) ;
+}
+
+
+# Returns "true" if the first version is less than the second one.
+#
+rule version-less ( lhs + : rhs + )
+{
+    numbers.check $(lhs) ;
+    numbers.check $(rhs) ;
+
+    local done ;
+    local result ;
+
+    while ! $(done) && $(lhs) && $(rhs)
+    {
+        if [ numbers.less $(lhs[1]) $(rhs[1]) ]
+        {
+            done = "true" ;
+            result = "true" ;
+        }
+        else if [ numbers.less $(rhs[1]) $(lhs[1])  ]
+        {
+            done = "true" ;
+        }
+        else
+        {
+            lhs = $(lhs[2-]) ;
+            rhs = $(rhs[2-]) ;
+        }
+    }
+    if ( ! $(done) && ! $(lhs) && ! [ is-all-zeroes $(rhs) ] )
+    {
+        result = "true" ;
+    }
+    
+    return $(result) ;
+}
+
+
+# Returns "true" if the current JAM version version is at least the given
+# version.
+#
+rule check-jam-version ( version + )
+{
+    local version-tag = $(version:J=.) ;
+    if ! $(version-tag)
+    {
+        errors.error Invalid version specifier: : $(version:E="(undefined)") ;
+    }
+
+    if ! $(.jam-version-check.$(version-tag))-is-not-empty
+    {
+        local jam-version = [ modules.peek : JAM_VERSION ] ;
+        if ! $(jam-version)
+        {
+            errors.error "Unable to deduce Boost Jam version. Your Boost Jam"
+                "installation is most likely terribly outdated." ;
+        }
+        .jam-version-check.$(version-tag) = "true" ;
+        if [ version-less [ modules.peek : JAM_VERSION ] : $(version) ]
+        {
+            .jam-version-check.$(version-tag) = "" ;
+        }
+    }
+    return $(.jam-version-check.$(version-tag)) ;
+}
+
+
+rule __test__ ( )
+{
+    import assert ;
+    
+    local jam-version = [ modules.peek : JAM_VERSION ] ;
+    local future-version = $(jam-version) ;
+    future-version += "1" ;
+
+    assert.true  check-jam-version $(jam-version)    ;
+    assert.false check-jam-version $(future-version) ;
+
+    assert.true  version-less  0          :  1          ;
+    assert.false version-less  0          :  0          ;
+    assert.true  version-less  1          :  2          ;
+    assert.false version-less  1          :  1          ;
+    assert.false version-less  2          :  1          ;
+    assert.true  version-less  3 1 20     :  3 4 10     ;
+    assert.false version-less  3 1 10     :  3 1 10     ;
+    assert.false version-less  3 4 10     :  3 1 20     ;
+    assert.true  version-less  3 1 20 5 1 :  3 4 10     ;
+    assert.false version-less  3 1 10 5 1 :  3 1 10     ;
+    assert.false version-less  3 4 10 5 1 :  3 1 20     ;
+    assert.true  version-less  3 1 20     :  3 4 10 5 1 ;
+    assert.true  version-less  3 1 10     :  3 1 10 5 1 ;
+    assert.false version-less  3 4 10     :  3 1 20 5 1 ;
+    assert.false version-less  3 1 10     :  3 1 10 0 0 ;
+    assert.false version-less  3 1 10 0 0 :  3 1 10     ;
+    assert.false version-less  3 1 10 0   :  3 1 10 0 0 ;
+    assert.false version-less  3 1 10 0   : 03 1 10 0 0 ;
+    assert.false version-less 03 1 10 0   :  3 1 10 0 0 ;
+
+    # TODO: Add tests for invalid input data being sent to version-less.
+}
diff --git a/jam-files/boost-build/build/virtual-target.jam b/jam-files/boost-build/build/virtual-target.jam
new file mode 100644
index 00000000..2e8446bc
--- /dev/null
+++ b/jam-files/boost-build/build/virtual-target.jam
@@ -0,0 +1,1317 @@
+# Copyright 2003 Dave Abrahams
+# Copyright 2005, 2006 Rene Rivera
+# Copyright 2002, 2003, 2004, 2005, 2006 Vladimir Prus
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+# Implements virtual targets, which correspond to actual files created during a
+# build, but are not yet targets in Jam sense. They are needed, for example,
+# when searching for possible transformation sequences, when it is not yet known
+# whether a particular target should be created at all.
+
+import "class" : new ;
+import errors ;
+import path ;
+import sequence ;
+import set ;
+import type ;
+import utility ;
+
+
+#                       +--------------------------+
+#                       | virtual-target           |
+#                       +==========================+
+#                       | actualize                |
+#                       +--------------------------+
+#                       | actualize-action() = 0   |
+#                       | actualize-location() = 0 |
+#                       +----------------+---------+
+#                                        |
+#                                        ^
+#                                       / \
+#                                      +-+-+
+#                                        |
+#    +---------------------+     +-------+--------------+
+#    | action              |     | abstract-file-target |
+#    +=====================|   * +======================+
+#    | action-name         |  +--+ action               |
+#    | properties          |  |  +----------------------+
+#    +---------------------+--+  | actualize-action()   |
+#    | actualize()         |0..1 +-----------+----------+
+#    | path()              |                 |
+#    | adjust-properties() | sources         |
+#    | actualize-sources() | targets         |
+#    +------+--------------+                 ^
+#           |                               / \
+#           ^                              +-+-+
+#          / \                               |
+#         +-+-+                +-------------+-------------+
+#           |                  |                           |
+#           |           +------+---------------+  +--------+-------------+
+#           |           | file-target          |  | searched-lib-target  |
+#           |           +======================+  +======================+
+#           |           | actualize-location() |  | actualize-location() |
+#           |           +----------------------+  +----------------------+
+#           |
+#         +-+------------------------------+
+#         |                                |
+#    +----+----------------+     +---------+-----------+
+#    | compile-action      |     | link-action         |
+#    +=====================+     +=====================+
+#    | adjust-properties() |     | adjust-properties() |
+#    +---------------------+     | actualize-sources() |
+#                                +---------------------+
+#
+# The 'compile-action' and 'link-action' classes are not defined here but in
+# builtin.jam modules. They are shown in the diagram to give the big picture.
+
+
+# Models a potential target. It can be converted into a Jam target and used in
+# building, if needed. However, it can be also dropped, which allows us to
+# search for different transformations and select only one.
+#
+class virtual-target
+{
+    import scanner ;
+    import sequence ;
+    import utility ;
+    import virtual-target ;
+
+    rule __init__ (
+          name     # Target/project name.
+        : project  # Project to which this target belongs.
+    )
+    {
+        self.name = $(name) ;
+        self.project = $(project) ;
+        self.dependencies = ;
+    }
+
+    # Name of this target.
+    #
+    rule name ( )
+    {
+        return $(self.name) ;
+    }
+
+    # Project of this target.
+    #
+    rule project ( )
+    {
+        return $(self.project) ;
+    }
+
+    # Adds additional 'virtual-target' instances this one depends on.
+    #
+    rule depends ( d + )
+    {
+        self.dependencies = [ sequence.merge $(self.dependencies) :
+            [ sequence.insertion-sort $(d) ] ] ;
+    }
+
+    rule dependencies ( )
+    {
+        return $(self.dependencies) ;
+    }
+    
+    rule always ( )
+    {
+        .always = 1 ;
+    }
+    
+    # Generates all the actual targets and sets up build actions for this
+    # target.
+    #
+    # If 'scanner' is specified, creates an additional target with the same
+    # location as the actual target, which will depend on the actual target and
+    # be associated with a 'scanner'. That additional target is returned. See
+    # the docs (#dependency_scanning) for rationale. Target must correspond to a
+    # file if 'scanner' is specified.
+    #
+    # If scanner is not specified then the actual target is returned.
+    #
+    rule actualize ( scanner ? )
+    {
+        local actual-name = [ actualize-no-scanner ] ;
+        
+        if $(.always)
+        {
+            ALWAYS $(actual-name) ;
+        }
+        
+        if ! $(scanner)
+        {
+            return $(actual-name) ;
+        }
+        else
+        {
+            # Add the scanner instance to the grist for name.
+            local g = [ sequence.join
+                [ utility.ungrist $(actual-name:G) ] $(scanner) : - ] ;
+            local name = $(actual-name:G=$(g)) ;
+
+            if ! $(self.made.$(name))
+            {
+                self.made.$(name) = true ;
+
+                DEPENDS $(name) : $(actual-name) ;
+
+                actualize-location $(name) ;
+
+                scanner.install $(scanner) : $(name) $(__name__) ;
+            }
+            return $(name) ;
+        }
+    }
+
+# private: (overridables)
+
+    # Sets up build actions for 'target'. Should call appropriate rules and set
+    # target variables.
+    #
+    rule actualize-action ( target )
+    {
+        errors.error "method should be defined in derived classes" ;
+    }
+
+    # Sets up variables on 'target' which specify its location.
+    #
+    rule actualize-location ( target )
+    {
+        errors.error "method should be defined in derived classes" ;
+    }
+
+    # If the target is a generated one, returns the path where it will be
+    # generated. Otherwise, returns an empty list.
+    #
+    rule path ( )
+    {
+        errors.error "method should be defined in derived classes" ;
+    }
+
+    # Returns the actual target name to be used in case when no scanner is
+    # involved.
+    #
+    rule actual-name ( )
+    {
+        errors.error "method should be defined in derived classes" ;
+    }
+
+# implementation
+    rule actualize-no-scanner ( )
+    {
+        # In fact, we just need to merge virtual-target with
+        # abstract-file-target as the latter is the only class derived from the
+        # former. But that has been left for later.
+	
+        errors.error "method should be defined in derived classes" ;
+    }
+}
+
+
+# Target corresponding to a file. The exact mapping for file is not yet
+# specified in this class. (TODO: Actually, the class name could be better...)
+#
+# May be a source file (when no action is specified) or a derived file
+# (otherwise).
+#
+# The target's grist is a concatenation of its project's location, action
+# properties (for derived targets) and, optionally, value identifying the main
+# target.
+#
+class abstract-file-target : virtual-target
+{
+    import project ;
+    import regex ;
+    import sequence ;
+    import path ;
+    import type ;
+    import property-set ;
+    import indirect ;
+
+    rule __init__ (
+         name     # Target's name.
+         exact ?  # If non-empty, the name is exactly the name created file
+                  # should have. Otherwise, the '__init__' method will add a
+                  # suffix obtained from 'type' by calling
+                  # 'type.generated-target-suffix'.
+        : type ?  # Target's type.
+        : project
+        : action ?
+    )
+    {
+        virtual-target.__init__ $(name) : $(project) ;
+
+        self.type = $(type) ;
+        self.action = $(action) ;
+        if $(action)
+        {
+            $(action).add-targets $(__name__) ;
+
+            if $(self.type) && ! $(exact)
+            {
+                _adjust-name $(name) ;
+            }
+        }
+    }
+
+    rule type ( )
+    {
+        return $(self.type) ;
+    }
+
+    # Sets the path. When generating target name, it will override any path
+    # computation from properties.
+    #
+    rule set-path ( path )
+    {
+        self.path = [ path.native $(path) ] ;
+    }
+
+    # Returns the currently set action.
+    #
+    rule action ( )
+    {
+        return $(self.action) ;
+    }
+
+    # Sets/gets the 'root' flag. Target is root if it directly corresponds to
+    # some variant of a main target.
+    #
+    rule root ( set ? )
+    {
+        if $(set)
+        {
+            self.root = true ;
+        }
+        return $(self.root) ;
+    }
+
+    # Gets or sets the subvariant which created this target. Subvariant is set
+    # when target is brought into existance and is never changed after that. In
+    # particular, if a target is shared by a subvariant, only the first is
+    # stored.
+    #
+    rule creating-subvariant ( s ?  # If specified, specifies the value to set,
+                                    # which should be a 'subvariant' class
+                                    # instance.
+                             )
+    {
+        if $(s) && ! $(self.creating-subvariant)
+        {
+            self.creating-subvariant = $(s) ;
+        }
+        return $(self.creating-subvariant) ;
+    }
+
+    rule actualize-action ( target )
+    {
+        if $(self.action)
+        {
+            $(self.action).actualize ;
+        }
+    }
+
+    # Return a human-readable representation of this target. If this target has
+    # an action, that is:
+    #
+    #    { <action-name>-<self.name>.<self.type> <action-sources>... }
+    #
+    # otherwise, it is:
+    #
+    #    { <self.name>.<self.type> }
+    #
+    rule str ( )
+    {
+        local action = [ action ] ;
+        local name-dot-type = [ sequence.join $(self.name) "." $(self.type) ] ;
+
+        if $(action)
+        {
+            local sources     = [ $(action).sources     ] ;
+            local action-name = [ $(action).action-name ] ;
+
+            local ss ;
+            for local s in $(sources)
+            {
+                ss += [ $(s).str ] ;
+            }
+
+            return "{" $(action-name)-$(name-dot-type) $(ss) "}" ;
+        }
+        else
+        {
+            return "{" $(name-dot-type) "}" ;
+        }
+    }
+
+    rule less ( a )
+    {
+        if [ str ] < [ $(a).str ]
+        {
+            return true ;
+        }
+    }
+
+    rule equal ( a )
+    {
+        if [ str ] = [ $(a).str ]
+        {
+            return true ;
+        }
+    }
+
+# private:
+    rule actual-name ( )
+    {
+        if ! $(self.actual-name)
+        {
+            local grist = [ grist ] ;
+            local basename = [ path.native $(self.name) ] ;
+            self.actual-name = <$(grist)>$(basename) ;
+        }
+        return $(self.actual-name) ;
+    }
+
+    # Helper to 'actual-name', above. Computes a unique prefix used to
+    # distinguish this target from other targets with the same name creating
+    # different files.
+    #
+    rule grist ( )
+    {
+        # Depending on target, there may be different approaches to generating
+        # unique prefixes. We generate prefixes in the form:
+        # <one letter approach code> <the actual prefix>
+        local path = [ path ] ;
+        if $(path)
+        {
+            # The target will be generated to a known path. Just use the path
+            # for identification, since path is as unique as it can get.
+            return p$(path) ;
+        }
+        else
+        {
+            # File is either source, which will be searched for, or is not a
+            # file at all. Use the location of project for distinguishing.
+            local project-location = [ $(self.project).get location ] ;
+            local location-grist = [ sequence.join [ regex.split
+                $(project-location) "/" ] : "!" ] ;
+
+            if $(self.action)
+            {
+                local ps = [ $(self.action).properties ] ;
+                local property-grist = [ $(ps).as-path ] ;
+                # 'property-grist' can be empty when 'ps' is an empty property
+                # set.
+                if $(property-grist)
+                {
+                    location-grist = $(location-grist)/$(property-grist) ;
+                }
+            }
+
+            return l$(location-grist) ;
+        }
+    }
+
+    # Given the target name specified in constructor, returns the name which
+    # should be really used, by looking at the <tag> properties. Tag properties
+    # need to be specified as <tag>@rule-name. This makes Boost Build call the
+    # specified rule with the target name, type and properties to get the new
+    # name. If no <tag> property is specified or the rule specified by <tag>
+    # returns nothing, returns the result of calling
+    # virtual-target.add-prefix-and-suffix.
+    #
+    rule _adjust-name ( specified-name )
+    {
+        local ps ;
+        if $(self.action)
+        {
+            ps = [ $(self.action).properties ] ;
+        }
+        else
+        {
+            ps = [ property-set.empty ] ;
+        }
+
+        # We add ourselves to the properties so that any tag rule can get more
+        # direct information about the target than just that available through
+        # the properties. This is useful in implementing name changes based on
+        # the sources of the target. For example to make unique names of object
+        # files based on the source file.  --grafik
+        ps = [ property-set.create [ $(ps).raw ] <target>$(__name__) ] ;
+
+        local tag = [ $(ps).get <tag> ] ;
+
+        if $(tag)
+        {
+            local rule-name = [ MATCH ^@(.*) : $(tag) ] ;
+            if $(rule-name)
+            {
+                if $(tag[2])
+                {
+                    errors.error "<tag>@rulename is present but is not the only"
+                        "<tag> feature" ;
+                }
+
+                self.name = [ indirect.call $(rule-name) $(specified-name)
+                    : $(self.type) : $(ps) ] ;
+            }
+            else
+            {
+                errors.error
+                    "The value of the <tag> feature must be '@rule-name'" ;
+            }
+        }
+
+        # If there is no tag or the tag rule returned nothing.
+        if ! $(tag) || ! $(self.name)
+        {
+            self.name = [ virtual-target.add-prefix-and-suffix $(specified-name)
+                : $(self.type) : $(ps) ] ;
+        }
+    }
+
+    rule actualize-no-scanner ( )
+    {
+        local name = [ actual-name ] ;
+
+        # Do anything only on the first invocation.
+        if ! $(self.made.$(name))
+        {
+            self.made.$(name) = true ;
+
+            if $(self.action)
+            {
+                # For non-derived target, we do not care if there are several
+                # virtual targets that refer to the same name. One case when
+                # this is unavoidable is when the file name is main.cpp and two
+                # targets have types CPP (for compiling) and MOCCABLE_CPP (for
+                # conversion to H via Qt tools).
+                virtual-target.register-actual-name $(name) : $(__name__) ;
+            }
+
+            for local i in $(self.dependencies)
+            {
+                DEPENDS $(name) : [ $(i).actualize ] ;
+            }
+
+            actualize-location $(name) ;
+            actualize-action $(name) ;
+        }
+        return $(name) ;
+    }
+}
+
+
+# Appends the suffix appropriate to 'type/property-set' combination to the
+# specified name and returns the result.
+#
+rule add-prefix-and-suffix ( specified-name : type ? : property-set )
+{
+    local suffix = [ type.generated-target-suffix $(type) : $(property-set) ] ;
+
+    # Handle suffixes for which no leading dot is desired. Those are specified
+    # by enclosing them in <...>.  Needed by python so it can create "_d.so"
+    # extensions, for example.
+    if $(suffix:G)
+    {
+        suffix = [ utility.ungrist $(suffix) ] ;
+    }
+    else
+    {
+        suffix = .$(suffix) ;
+    }
+
+    local prefix = [ type.generated-target-prefix $(type) : $(property-set) ] ;
+
+    if  [ MATCH ^($(prefix)) : $(specified-name) ]
+    {
+        prefix = ;
+    }
+    return $(prefix:E="")$(specified-name)$(suffix:E="") ;
+}
+
+
+# File targets with explicitly known location.
+#
+# The file path is determined as
+#    * Value passed to the 'set-path' method, if any.
+#    * For derived files, project's build dir, joined with components that
+#      describe action properties. If free properties are not equal to the
+#      project's reference properties an element with the name of the main
+#      target is added.
+#    * For source files, project's source dir.
+#
+# The file suffix is determined as:
+#     * The value passed to the 'suffix' method, if any.
+#     * The suffix corresponding to the target's type.
+#
+class file-target : abstract-file-target
+{
+    import "class" : new ;
+    import common ;
+    import errors ;
+
+    rule __init__ (
+        name exact ?
+        : type ?  # Optional type for this target.
+        : project
+        : action ?
+        : path ?
+    )
+    {
+        abstract-file-target.__init__ $(name) $(exact) : $(type) : $(project) :
+            $(action) ;
+
+        self.path = $(path) ;
+    }
+
+    rule clone-with-different-type ( new-type )
+    {
+        return [ new file-target $(self.name) exact : $(new-type) :
+            $(self.project) : $(self.action) : $(self.path) ] ;
+    }
+
+    rule actualize-location ( target )
+    {
+        if $(self.action)
+        {
+            # This is a derived file.
+            local path = [ path ] ;
+            LOCATE on $(target) = $(path) ;
+
+            # Make sure the path exists.
+            DEPENDS $(target) : $(path) ;
+            common.MkDir $(path) ;
+
+            # It is possible that the target name includes a directory too, for
+            # example when installing headers. Create that directory.
+            if $(target:D)
+            {
+                local d = $(target:D) ;
+                d = $(d:R=$(path)) ;
+                DEPENDS $(target) : $(d) ;
+                common.MkDir $(d) ;
+            }
+
+            # For a real file target, we create a fake target depending on the
+            # real target. This allows us to run
+            #
+            #    bjam hello.o
+            #
+            # without trying to guess the name of the real target. Note that the
+            # target has no directory name and uses a special <e> grist.
+            #
+            # First, that means that "bjam hello.o" will build all known hello.o
+            # targets. Second, the <e> grist makes sure this target will not be
+            # confused with other targets, for example, if we have subdir 'test'
+            # with target 'test' in it that includes a 'test.o' file, then the
+            # target for directory will be just 'test' the target for test.o
+            # will be <ptest/bin/gcc/debug>test.o and the target we create below
+            # will be <e>test.o
+            DEPENDS $(target:G=e) : $(target) ;
+            # Allow bjam <path-to-file>/<file> to work. This will not catch all
+            # possible ways to refer to the path (relative/absolute, extra ".",
+            # various "..", but should help in obvious cases.
+            DEPENDS $(target:G=e:R=$(path)) : $(target) ;
+        }
+        else
+        {
+            SEARCH on $(target) = [ path.native $(self.path) ] ;
+        }
+    }
+
+    # Returns the directory for this target.
+    #
+    rule path ( )
+    {
+        if ! $(self.path)
+        {
+            if $(self.action)
+            {
+                local p = [ $(self.action).properties ] ;
+                local path,relative-to-build-dir = [ $(p).target-path ] ;
+                local path = $(path,relative-to-build-dir[1]) ;
+                local relative-to-build-dir = $(path,relative-to-build-dir[2]) ;
+
+                if $(relative-to-build-dir)
+                {
+                    path = [ path.join [ $(self.project).build-dir ] $(path) ] ;
+                }
+
+                self.path = [ path.native $(path) ] ;
+            }
+        }
+        return $(self.path) ;
+     }
+}
+
+
+class notfile-target : abstract-file-target
+{
+    rule __init__ ( name : project : action ? )
+    {
+        abstract-file-target.__init__ $(name) : : $(project) : $(action) ;
+    }
+
+    # Returns nothing to indicate that the target's path is not known.
+    #
+    rule path ( )
+    {
+        return ;
+    }
+
+    rule actualize-location ( target )
+    {
+        NOTFILE $(target) ;
+        ALWAYS $(target) ;
+        # TEMPORARY $(target) ;
+        NOUPDATE $(target) ;
+    }
+}
+
+
+# Class representing an action. Both 'targets' and 'sources' should list
+# instances of 'virtual-target'. Action name should name a rule with this
+# prototype:
+#     rule action-name ( targets + : sources * : properties * )
+# Targets and sources are passed as actual Jam targets. The rule may not
+# establish additional dependency relationships.
+#
+class action
+{
+    import "class" ;
+    import errors ;
+    import type ;
+    import toolset ;
+    import property-set ;
+    import indirect ;
+    import path ;
+    import set : difference ;
+
+    rule __init__ ( sources * : action-name + : property-set ? )
+    {
+        self.sources = $(sources) ;
+
+        self.action-name = [ indirect.make-qualified $(action-name) ] ;
+
+        if ! $(property-set)
+        {
+            property-set = [ property-set.empty ] ;
+        }
+
+        if ! [ class.is-instance $(property-set) ]
+        {
+            errors.error "Property set instance required" ;
+        }
+
+        self.properties = $(property-set) ;
+    }
+
+    rule add-targets ( targets * )
+    {
+        self.targets += $(targets) ;
+    }
+
+    rule replace-targets ( old-targets * : new-targets * )
+    {
+        self.targets = [ set.difference $(self.targets) : $(old-targets) ] ;
+        self.targets += $(new-targets) ;
+    }
+
+    rule targets ( )
+    {
+        return $(self.targets) ;
+    }
+
+    rule sources ( )
+    {
+        return $(self.sources) ;
+    }
+
+    rule action-name ( )
+    {
+        return $(self.action-name) ;
+    }
+
+    rule properties ( )
+    {
+        return $(self.properties) ;
+    }
+
+    # Generates actual build instructions.
+    #
+    rule actualize ( )
+    {
+        if ! $(self.actualized)
+        {
+            self.actualized = true ;
+
+            local ps = [ properties ] ;
+            local properties = [ adjust-properties $(ps) ] ;
+
+            local actual-targets ;
+            for local i in [ targets ]
+            {
+                actual-targets += [ $(i).actualize ] ;
+            }
+
+            actualize-sources [ sources ] : $(properties) ;
+
+            DEPENDS $(actual-targets) : $(self.actual-sources)
+                $(self.dependency-only-sources) ;
+            
+            # This works around a bug with -j and actions that
+            # produce multiple target, where:
+            # - dependency on the first output is found, and
+            #   the action is started
+            # - dependency on the second output is found, and
+            #   bjam noticed that command is already running
+            # - instead of waiting for the command, dependents
+            #   of the second targets are immediately updated.
+            if $(actual-targets[2])
+            {                
+                INCLUDES $(actual-targets) : $(actual-targets) ;
+            }
+            
+            # Action name can include additional argument to rule, which should
+            # not be passed to 'set-target-variables'
+            toolset.set-target-variables
+                [ indirect.get-rule $(self.action-name[1]) ] $(actual-targets)
+                : $(properties) ;
+
+            # Reflect ourselves in a variable for the target. This allows
+            # looking up additional info for the action given the raw target.
+            # For example to debug or output action information from action
+            # rules.
+            .action on $(actual-targets) = $(__name__) ;
+
+            indirect.call $(self.action-name) $(actual-targets)
+                : $(self.actual-sources) : [ $(properties).raw ] ;
+
+            # Since we set up the creating action here, we set up the action for
+            # cleaning up as well.
+            common.Clean clean-all : $(actual-targets) ;
+        }
+    }
+
+    # Helper for 'actualize-sources'. For each passed source, actualizes it with
+    # the appropriate scanner. Returns the actualized virtual targets.
+    #
+    rule actualize-source-type ( sources * : property-set )
+    {
+        local result = ;
+        for local i in $(sources)
+        {
+            local scanner ;
+            if [ $(i).type ]
+            {
+                scanner = [ type.get-scanner [ $(i).type ] : $(property-set) ] ;
+            }
+            result += [ $(i).actualize $(scanner) ] ;
+        }
+        return $(result) ;
+    }
+
+    # Creates actual Jam targets for sources. Initializes the following member
+    # variables:
+    #   'self.actual-sources'          -- sources passed to the updating action.
+    #   'self.dependency-only-sources' -- sources marked as dependencies, but
+    #                                     are not used otherwise.
+    #
+    # New values will be *appended* to the variables. They may be non-empty if
+    # caller wants it.
+    #
+    rule actualize-sources ( sources * : property-set )
+    {
+        local dependencies = [ $(self.properties).get <dependency> ] ;
+
+        self.dependency-only-sources +=
+            [ actualize-source-type $(dependencies) : $(property-set) ] ;
+        self.actual-sources +=
+            [ actualize-source-type $(sources) : $(property-set) ] ;
+
+        # This is used to help bjam find dependencies in generated headers and
+        # other main targets, e.g. in:
+        #
+        #   make a.h : ....... ;
+        #   exe hello : hello.cpp : <implicit-dependency>a.h ;
+        #
+        # For bjam to find the dependency the generated target must be
+        # actualized (i.e. have its Jam target constructed). In the above case,
+        # if we are building just hello ("bjam hello"), 'a.h' will not be
+        # actualized unless we do it here.
+        local implicit = [ $(self.properties).get <implicit-dependency> ] ;
+        for local i in $(implicit)
+        {
+            $(i:G=).actualize ;
+        }
+    }
+
+    # Determines real properties when trying to build with 'properties'. This is
+    # the last chance to fix properties, for example to adjust includes to get
+    # generated headers correctly. Default implementation simply returns its
+    # argument.
+    #
+    rule adjust-properties ( property-set )
+    {
+        return $(property-set) ;
+    }
+}
+
+
+# Action class which does nothing --- it produces the targets with specific
+# properties out of nowhere. It is needed to distinguish virtual targets with
+# different properties that are known to exist and have no actions which create
+# them.
+#
+class null-action : action
+{
+    rule __init__ ( property-set ? )
+    {
+        action.__init__ : .no-action : $(property-set) ;
+    }
+
+    rule actualize ( )
+    {
+        if ! $(self.actualized)
+        {
+            self.actualized = true ;
+            for local i in [ targets ]
+            {
+                $(i).actualize ;
+            }
+        }
+    }
+}
+
+
+# Class which acts exactly like 'action', except that its sources are not
+# scanned for dependencies.
+#
+class non-scanning-action : action
+{
+    rule __init__ ( sources * : action-name + : property-set ? )
+    {
+        action.__init__ $(sources) : $(action-name) : $(property-set) ;
+    }
+
+    rule actualize-source-type ( sources * : property-set )
+    {
+        local result ;
+        for local i in $(sources)
+        {
+            result += [ $(i).actualize ] ;
+        }
+        return $(result) ;
+    }
+}
+
+
+# Creates a virtual target with an appropriate name and type from 'file'. If a
+# target with that name in that project already exists, returns that already
+# created target.
+#
+# FIXME: a more correct way would be to compute the path to the file, based on
+# name and source location for the project, and use that path to determine if
+# the target has already been created. This logic should be shared with how we
+# usually find targets identified by a specific target id. It should also be
+# updated to work correctly when the file is specified using both relative and
+# absolute paths.
+#
+# TODO: passing a project with all virtual targets is starting to be annoying.
+#
+rule from-file ( file : file-loc : project )
+{
+    import type ;  # Had to do this here to break a circular dependency.
+
+    # Check whether we already created a target corresponding to this file.
+    local path = [ path.root [ path.root $(file) $(file-loc) ] [ path.pwd ] ] ;
+
+    if $(.files.$(path))
+    {
+        return $(.files.$(path)) ;
+    }
+    else
+    {
+        local name = [ path.make $(file) ] ;
+        local type = [ type.type $(file) ] ;
+        local result ;
+
+        result = [ new file-target $(file) : $(type) : $(project) : :
+            $(file-loc) ] ;
+
+        .files.$(path) = $(result) ;
+        return $(result) ;
+    }
+}
+
+
+# Registers a new virtual target. Checks if there is already a registered target
+# with the same name, type, project and subvariant properties as well as the
+# same sources and equal action. If such target is found it is returned and a
+# new 'target' is not registered. Otherwise, 'target' is registered and
+# returned.
+#
+rule register ( target )
+{
+    local signature = [ sequence.join
+        [ $(target).path ] [ $(target).name ] : - ] ;
+
+    local result ;
+    for local t in $(.cache.$(signature))
+    {
+        local a1 = [ $(t).action ] ;
+        local a2 = [ $(target).action ] ;
+
+        if ! $(result)
+        {
+            if ! $(a1) && ! $(a2)
+            {
+                result = $(t) ;
+            }
+            else
+            {
+                if $(a1) && $(a2) &&
+                    ( [ $(a1).action-name ] = [ $(a2).action-name ] ) &&
+                    ( [ $(a1).sources     ] = [ $(a2).sources     ] )
+                {
+                    local ps1 = [ $(a1).properties ] ;
+                    local ps2 = [ $(a2).properties ] ;
+                    local p1 = [ $(ps1).base ] [ $(ps1).free ] [ set.difference
+                        [ $(ps1).dependency ] : [ $(ps1).incidental ] ] ;
+                    local p2 = [ $(ps2).base ] [ $(ps2).free ] [ set.difference
+                        [ $(ps2).dependency ] : [ $(ps2).incidental ] ] ;
+                    if $(p1) = $(p2)
+                    {
+                        result = $(t) ;
+                    }
+                }
+            }
+        }
+    }
+
+    if ! $(result)
+    {
+        .cache.$(signature) += $(target) ;
+        result = $(target) ;
+    }
+
+    .recent-targets += $(result) ;
+    .all-targets += $(result) ;
+
+    return $(result) ;
+}
+
+
+# Each target returned by 'register' is added to the .recent-targets list,
+# returned by this function. This allows us to find all virtual targets created
+# when building a specific main target, even those constructed only as
+# intermediate targets.
+#
+rule recent-targets ( )
+{
+    return $(.recent-targets) ;
+}
+
+
+rule clear-recent-targets ( )
+{
+    .recent-targets = ;
+}
+
+
+# Returns all virtual targets ever created.
+#
+rule all-targets ( )
+{
+    return $(.all-targets) ;
+}
+
+
+# Returns all targets from 'targets' with types equal to 'type' or derived from
+# it.
+#
+rule select-by-type ( type : targets * )
+{
+    local result ;
+    for local t in $(targets)
+    {
+        if [ type.is-subtype [ $(t).type ] $(type) ]
+        {
+            result += $(t) ;
+        }
+    }
+    return $(result) ;
+}
+
+
+rule register-actual-name ( actual-name : virtual-target )
+{
+    if $(.actual.$(actual-name))
+    {
+        local cs1 = [ $(.actual.$(actual-name)).creating-subvariant ] ;
+        local cs2 = [ $(virtual-target).creating-subvariant ] ;
+        local cmt1 = [ $(cs1).main-target ] ;
+        local cmt2 = [ $(cs2).main-target ] ;
+
+        local action1 = [ $(.actual.$(actual-name)).action ] ;
+        local action2 = [ $(virtual-target).action ] ;
+        local properties-added ;
+        local properties-removed ;
+        if $(action1) && $(action2)
+        {
+            local p1 = [ $(action1).properties ] ;
+            p1 = [ $(p1).raw ] ;
+            local p2 = [ $(action2).properties ] ;
+            p2 = [ $(p2).raw ] ;
+            properties-removed = [ set.difference $(p1) : $(p2) ] ;
+            properties-removed ?= "none" ;
+            properties-added = [ set.difference $(p2) : $(p1) ] ;
+            properties-added ?= "none" ;
+        }
+        errors.error "Duplicate name of actual target:" $(actual-name)
+            : "previous virtual target" [ $(.actual.$(actual-name)).str ]
+            : "created from"            [ $(cmt1).full-name ]
+            : "another virtual target"  [ $(virtual-target).str ]
+            : "created from"            [ $(cmt2).full-name ]
+            : "added properties:"       $(properties-added)
+            : "removed properties:"     $(properties-removed) ;
+    }
+    else
+    {
+        .actual.$(actual-name) = $(virtual-target) ;
+    }
+}
+
+
+# Traverses the dependency graph of 'target' and return all targets that will be
+# created before this one is created. If the root of some dependency graph is
+# found during traversal, it is either included or not, depending on the
+# 'include-roots' value. In either case traversal stops at root targets, i.e.
+# root target sources are not traversed.
+#
+rule traverse ( target : include-roots ? : include-sources ? )
+{
+    local result ;
+    if [ $(target).action ]
+    {
+        local action = [ $(target).action ] ;
+        # This includes the 'target' as well.
+        result += [ $(action).targets ] ;
+
+        for local t in [ $(action).sources ]
+        {
+            if ! [ $(t).root ]
+            {
+                result += [ traverse $(t) : $(include-roots) : $(include-sources) ] ;
+            }
+            else if $(include-roots)
+            {
+                result += $(t) ;
+            }
+        }
+    }
+    else if $(include-sources)
+    {
+        result = $(target) ;
+    }
+    return $(result) ;
+}
+
+
+# Takes an 'action' instance and creates a new instance of it and all targets
+# produced by the action. The rule-name and properties are set to
+# 'new-rule-name' and 'new-properties', if those are specified. Returns the
+# cloned action.
+#
+rule clone-action ( action : new-project : new-action-name ? : new-properties ? )
+{
+    if ! $(new-action-name)
+    {
+        new-action-name = [ $(action).action-name ] ;
+    }
+    if ! $(new-properties)
+    {
+        new-properties = [ $(action).properties ] ;
+    }
+
+    local action-class = [ modules.peek $(action) : __class__ ] ;
+    local cloned-action = [ class.new $(action-class)
+        [ $(action).sources ] : $(new-action-name) : $(new-properties) ] ;
+
+    local cloned-targets ;
+    for local target in [ $(action).targets ]
+    {
+        local n = [ $(target).name ] ;
+        # Do not modify produced target names.
+        local cloned-target = [ class.new file-target $(n) exact :
+            [ $(target).type ] : $(new-project) : $(cloned-action) ] ;
+        local d = [ $(target).dependencies ] ;
+        if $(d)
+        {
+            $(cloned-target).depends $(d) ;
+        }
+        $(cloned-target).root [ $(target).root ] ;
+        $(cloned-target).creating-subvariant [ $(target).creating-subvariant ] ;
+
+        cloned-targets += $(cloned-target) ;
+    }
+
+    return $(cloned-action) ;
+}
+
+
+class subvariant
+{
+    import sequence ;
+    import type ;
+
+    rule __init__ ( main-target       # The instance of main-target class.
+        : property-set                # Properties requested for this target.
+        : sources *
+        : build-properties            # Actually used properties.
+        : sources-usage-requirements  # Properties propagated from sources.
+        : created-targets * )         # Top-level created targets.
+    {
+        self.main-target = $(main-target) ;
+        self.properties = $(property-set) ;
+        self.sources = $(sources) ;
+        self.build-properties = $(build-properties) ;
+        self.sources-usage-requirements = $(sources-usage-requirements) ;
+        self.created-targets = $(created-targets) ;
+
+        # Pre-compose a list of other dependency graphs this one depends on.
+        local deps = [ $(build-properties).get <implicit-dependency> ] ;
+        for local d in $(deps)
+        {
+            self.other-dg += [ $(d:G=).creating-subvariant ] ;
+        }
+
+        self.other-dg = [ sequence.unique $(self.other-dg) ] ;
+    }
+
+    rule main-target ( )
+    {
+        return $(self.main-target) ;
+    }
+
+    rule created-targets ( )
+    {
+        return $(self.created-targets) ;
+    }
+
+    rule requested-properties ( )
+    {
+        return $(self.properties) ;
+    }
+
+    rule build-properties ( )
+    {
+        return $(self.build-properties) ;
+    }
+
+    rule sources-usage-requirements ( )
+    {
+        return $(self.sources-usage-requirements) ;
+    }
+
+    rule set-usage-requirements ( usage-requirements )
+    {
+        self.usage-requirements = $(usage-requirements) ;
+    }
+
+    rule usage-requirements ( )
+    {
+        return $(self.usage-requirements) ;
+    }
+
+    # Returns all targets referenced by this subvariant, either directly or
+    # indirectly, and either as sources, or as dependency properties. Targets
+    # referred to using the dependency property are returned as properties, not
+    # targets.
+    #
+    rule all-referenced-targets ( theset )
+    {
+        # Find directly referenced targets.
+        local deps = [ $(self.build-properties).dependency ] ;
+        local all-targets = $(self.sources) $(deps) ;
+
+        # Find other subvariants.
+        local r ;
+        for local t in $(all-targets)
+        {
+            if ! [ $(theset).contains $(t) ]
+            {
+                $(theset).add $(t) ;
+                r += [ $(t:G=).creating-subvariant ] ;
+            }            
+        }
+        r = [ sequence.unique $(r) ] ;
+        for local s in $(r)
+        {
+            if $(s) != $(__name__)
+            {
+                $(s).all-referenced-targets $(theset) ;
+            }
+        }
+    }
+
+    # Returns the properties specifying implicit include paths to generated
+    # headers. This traverses all targets in this subvariant and subvariants
+    # referred by <implcit-dependecy> properties. For all targets of type
+    # 'target-type' (or for all targets, if 'target-type' is not specified), the
+    # result will contain <$(feature)>path-to-that-target.
+    #
+    rule implicit-includes ( feature : target-type ? )
+    {
+        local key = ii$(feature)-$(target-type:E="") ;
+        if ! $($(key))-is-not-empty
+        {
+            local target-paths = [ all-target-directories $(target-type) ] ;
+            target-paths = [ sequence.unique $(target-paths) ] ;
+            local result = $(target-paths:G=$(feature)) ;
+            if ! $(result)
+            {
+                result = "" ;
+            }
+            $(key) = $(result) ;
+        }
+        if $($(key)) = ""
+        {
+            return ;
+        }
+        else
+        {
+            return $($(key)) ;
+        }
+    }
+
+    rule all-target-directories ( target-type ? )
+    {
+        if ! $(self.target-directories)
+        {
+            compute-target-directories $(target-type) ;
+        }
+        return $(self.target-directories) ;
+    }
+
+    rule compute-target-directories ( target-type ? )
+    {
+        local result ;
+        for local t in $(self.created-targets)
+        {
+            # Skip targets of the wrong type.
+            if ! $(target-type) ||
+                [ type.is-derived [ $(t).type ] $(target-type) ]
+            {
+                result = [ sequence.merge $(result) : [ $(t).path ] ] ;
+            }
+        }
+        for local d in $(self.other-dg)
+        {
+            result += [ $(d).all-target-directories $(target-type) ] ;
+        }
+        self.target-directories = $(result) ;
+    }
+}
diff --git a/jam-files/boost-build/build/virtual_target.py b/jam-files/boost-build/build/virtual_target.py
new file mode 100644
index 00000000..51dff037
--- /dev/null
+++ b/jam-files/boost-build/build/virtual_target.py
@@ -0,0 +1,1118 @@
+# Status: ported.
+# Base revision: 64488.
+# 
+#  Copyright (C) Vladimir Prus 2002. Permission to copy, use, modify, sell and
+#  distribute this software is granted provided this copyright notice appears in
+#  all copies. This software is provided "as is" without express or implied
+#  warranty, and with no claim as to its suitability for any purpose.
+
+#  Implements virtual targets, which correspond to actual files created during
+#  build, but are not yet targets in Jam sense. They are needed, for example,
+#  when searching for possible transormation sequences, when it's not known
+#  if particular target should be created at all.
+#
+#
+#                       +--------------------------+
+#                       | VirtualTarget           |
+#                       +==========================+
+#                       | actualize                |
+#                       +--------------------------+
+#                       | actualize_action() = 0   |
+#                       | actualize_location() = 0 |
+#                       +----------------+---------+
+#                                        |
+#                                        ^
+#                                       / \
+#                                      +-+-+
+#                                        |
+#    +---------------------+     +-------+--------------+
+#    | Action              |     | AbstractFileTarget   |
+#    +=====================|   * +======================+
+#    | action_name         |  +--+ action               |
+#    | properties          |  |  +----------------------+
+#    +---------------------+--+  | actualize_action()   |
+#    | actualize()         |0..1 +-----------+----------+
+#    | path()              |                 |
+#    | adjust_properties() | sources         |
+#    | actualize_sources() | targets         |
+#    +------+--------------+                 ^
+#           |                               / \
+#           ^                              +-+-+
+#          / \                               |
+#         +-+-+                +-------------+-------------+
+#           |                  |                           |
+#           |           +------+---------------+  +--------+-------------+
+#           |           | FileTarget           |  | SearchedLibTarget    |
+#           |           +======================+  +======================+
+#           |           | actualize-location() |  | actualize-location() |
+#           |           +----------------------+  +----------------------+
+#           |
+#         +-+------------------------------+
+#         |                                |
+#    +----+----------------+     +---------+-----------+
+#    | CompileAction       |     | LinkAction          |
+#    +=====================+     +=====================+
+#    | adjust_properties() |     | adjust_properties() |
+#    +---------------------+     | actualize_sources() |
+#                                +---------------------+
+#
+# The 'CompileAction' and 'LinkAction' classes are defined not here,
+# but in builtin.jam modules. They are shown in the diagram to give
+# the big picture.
+
+import bjam
+
+import re
+import os.path
+import string
+import types
+
+from b2.util import path, utility, set
+from b2.util.utility import add_grist, get_grist, ungrist, replace_grist, get_value
+from b2.util.sequence import unique
+from b2.tools import common
+from b2.exceptions import *
+import b2.build.type
+import b2.build.property_set as property_set
+
+import b2.build.property as property
+
+from b2.manager import get_manager
+from b2.util import bjam_signature
+
+__re_starts_with_at = re.compile ('^@(.*)')
+
+class VirtualTargetRegistry:
+    def __init__ (self, manager):
+        self.manager_ = manager
+        
+        # A cache for FileTargets
+        self.files_ = {}
+
+        # A cache for targets.
+        self.cache_ = {}
+
+        # A map of actual names to virtual targets.
+        # Used to make sure we don't associate same
+        # actual target to two virtual targets.
+        self.actual_ = {}
+
+        self.recent_targets_ = []
+        
+        # All targets ever registed
+        self.all_targets_ = []
+
+        self.next_id_ = 0
+        
+    def register (self, target):
+        """ Registers a new virtual target. Checks if there's already registered target, with the same
+            name, type, project and subvariant properties, and also with the same sources
+            and equal action. If such target is found it is retured and 'target' is not registered.
+            Otherwise, 'target' is registered and returned.
+        """
+        if target.path():
+            signature = target.path() + "-" + target.name()
+        else:
+            signature = "-" + target.name()
+
+        result = None
+        if not self.cache_.has_key (signature):
+            self.cache_ [signature] = []
+
+        for t in self.cache_ [signature]:
+            a1 = t.action ()
+            a2 = target.action ()
+
+            # TODO: why are we checking for not result?
+            if not result:
+                if not a1 and not a2:
+                    result = t
+                else:
+                    if a1 and a2 and a1.action_name () == a2.action_name () and a1.sources () == a2.sources ():
+                        ps1 = a1.properties ()
+                        ps2 = a2.properties ()
+                        p1 = ps1.base () + ps1.free () +\
+                            b2.util.set.difference(ps1.dependency(), ps1.incidental())
+                        p2 = ps2.base () + ps2.free () +\
+                            b2.util.set.difference(ps2.dependency(), ps2.incidental())
+                        if p1 == p2:
+                            result = t
+        
+        if not result:
+            self.cache_ [signature].append (target)
+            result = target
+
+        # TODO: Don't append if we found pre-existing target?
+        self.recent_targets_.append(result)
+        self.all_targets_.append(result)
+    
+        return result
+
+    def from_file (self, file, file_location, project):
+        """ Creates a virtual target with appropriate name and type from 'file'.
+            If a target with that name in that project was already created, returns that already
+            created target.
+            TODO: more correct way would be to compute path to the file, based on name and source location
+            for the project, and use that path to determine if the target was already created.
+            TODO: passing project with all virtual targets starts to be annoying.
+        """
+        # Check if we've created a target corresponding to this file.
+        path = os.path.join(os.getcwd(), file_location, file)
+        path = os.path.normpath(path)
+
+        if self.files_.has_key (path):
+            return self.files_ [path]
+
+        file_type = b2.build.type.type (file)
+
+        result = FileTarget (file, file_type, project,
+                             None, file_location)       
+        self.files_ [path] = result
+                
+        return result
+
+    def recent_targets(self):
+        """Each target returned by 'register' is added to a list of
+        'recent-target', returned by this function. So, this allows
+        us to find all targets created when building a given main
+        target, even if the target."""
+
+        return self.recent_targets_
+
+    def clear_recent_targets(self):
+        self.recent_targets_ = []
+
+    def all_targets(self):
+        # Returns all virtual targets ever created
+        return self.all_targets_
+
+    # Returns all targets from 'targets' with types
+    # equal to 'type' or derived from it.
+    def select_by_type(self, type, targets):
+        return [t for t in targets if b2.build.type.is_sybtype(t.type(), type)]
+
+    def register_actual_name (self, actual_name, virtual_target):
+        if self.actual_.has_key (actual_name):
+            cs1 = self.actual_ [actual_name].creating_subvariant ()
+            cs2 = virtual_target.creating_subvariant ()
+            cmt1 = cs1.main_target ()
+            cmt2 = cs2.main_target ()            
+            
+            action1 = self.actual_ [actual_name].action ()
+            action2 = virtual_target.action ()
+            
+            properties_added = []
+            properties_removed = []
+            if action1 and action2:
+                p1 = action1.properties ()
+                p1 = p1.raw ()
+                p2 = action2.properties ()
+                p2 = p2.raw ()
+                
+                properties_removed = set.difference (p1, p2)
+                if not properties_removed: properties_removed = "none"
+
+                properties_added = set.difference (p2, p1)
+                if not properties_added: properties_added = "none"
+
+            # FIXME: Revive printing of real location.
+            get_manager().errors()(
+                "Duplicate name of actual target: '%s'\n" 
+                "previous virtual target '%s'\n"
+                "created from '%s'\n"
+                "another virtual target '%s'\n"
+                "created from '%s'\n"
+                "added properties: '%s'\n"
+                "removed properties: '%s'\n"
+                % (actual_name,
+                   self.actual_ [actual_name], "loc", #cmt1.location (),
+                   virtual_target, 
+                   "loc", #cmt2.location (),
+                   properties_added, properties_removed))
+
+        else:
+            self.actual_ [actual_name] = virtual_target
+    
+
+    def add_suffix (self, specified_name, file_type, prop_set):
+        """ Appends the suffix appropriate to 'type/property_set' combination
+            to the specified name and returns the result.
+        """
+        suffix = b2.build.type.generated_target_suffix (file_type, prop_set)
+
+        if suffix:
+            return specified_name + '.' + suffix
+
+        else:
+            return specified_name
+    
+class VirtualTarget:
+    """ Potential target. It can be converted into jam target and used in
+        building, if needed. However, it can be also dropped, which allows
+        to search for different transformation and select only one.
+        name:    name of this target.
+        project: project to which this target belongs.
+    """
+    def __init__ (self, name, project):
+        self.name_ = name
+        self.project_ = project
+        self.dependencies_ = []
+        self.always_ = False
+        
+        # Caches if dapendencies for scanners have already been set.
+        self.made_ = {}
+
+    def manager(self):
+        return self.project_.manager()
+
+    def virtual_targets(self):
+        return self.manager().virtual_targets()
+
+    def name (self):
+        """ Name of this target.
+        """
+        return self.name_
+
+    def project (self):
+        """ Project of this target.
+        """
+        return self.project_
+
+    def depends (self, d):
+        """ Adds additional instances of 'VirtualTarget' that this
+            one depends on.
+        """
+        self.dependencies_ = unique (self.dependencies_ + d).sort ()
+
+    def dependencies (self):
+        return self.dependencies_
+
+    def always(self):
+        self.always_ = True
+
+    def actualize (self, scanner = None):
+        """ Generates all the actual targets and sets up build actions for
+            this target.
+            
+            If 'scanner' is specified, creates an additional target
+            with the same location as actual target, which will depend on the
+            actual target and be associated with 'scanner'. That additional
+            target is returned. See the docs (#dependency_scanning) for rationale.
+            Target must correspond to a file if 'scanner' is specified.
+            
+            If scanner is not specified, then actual target is returned.
+        """
+        actual_name = self.actualize_no_scanner ()
+
+        if self.always_:
+            bjam.call("ALWAYS", actual_name)
+
+        if not scanner:
+            return actual_name
+
+        else:
+            # Add the scanner instance to the grist for name.
+            g = '-'.join ([ungrist(get_grist(actual_name)), str(id(scanner))])
+
+            name = replace_grist (actual_name, '<' + g + '>')
+
+            if not self.made_.has_key (name):
+                self.made_ [name] = True
+
+                self.project_.manager ().engine ().add_dependency (name, actual_name)
+
+                self.actualize_location (name)
+
+                self.project_.manager ().scanners ().install (scanner, name, str (self))
+
+            return name
+
+# private: (overridables)
+
+    def actualize_action (self, target):
+        """ Sets up build actions for 'target'. Should call appropriate rules
+            and set target variables.
+        """
+        raise BaseException ("method should be defined in derived classes")
+
+    def actualize_location (self, target):
+        """ Sets up variables on 'target' which specify its location.
+        """
+        raise BaseException ("method should be defined in derived classes")
+    
+    def path (self):
+        """ If the target is generated one, returns the path where it will be
+            generated. Otherwise, returns empty list.
+        """
+        raise BaseException ("method should be defined in derived classes")
+    
+    def actual_name (self):
+        """ Return that actual target name that should be used
+            (for the case where no scanner is involved)
+        """
+        raise BaseException ("method should be defined in derived classes")
+
+
+class AbstractFileTarget (VirtualTarget):
+    """ Target which correspond to a file. The exact mapping for file
+        is not yet specified in this class. (TODO: Actually, the class name
+        could be better...)
+        
+        May be a source file (when no action is specified), or
+        derived file (otherwise).
+        
+        The target's grist is concatenation of project's location,
+        properties of action (for derived files), and, optionally,
+        value identifying the main target.
+        
+        exact:  If non-empty, the name is exactly the name
+                created file should have. Otherwise, the '__init__'
+                method will add suffix obtained from 'type' by
+                calling 'type.generated-target-suffix'.
+                  
+        type:   optional type of this target.
+    """
+    def __init__ (self, name, type, project, action = None, exact=False):
+        VirtualTarget.__init__ (self, name, project)
+            
+        self.type_ = type
+
+        self.action_ = action
+        self.exact_ = exact
+        
+        if action:
+            action.add_targets ([self])
+ 
+            if self.type and not exact:
+                self.__adjust_name (name)
+
+        
+        self.actual_name_ = None
+        self.path_ = None
+        self.intermediate_ = False
+        self.creating_subvariant_ = None
+        
+        # True if this is a root target.
+        self.root_ = False
+
+    def type (self):
+        return self.type_
+
+    def set_path (self, path):
+        """ Sets the path. When generating target name, it will override any path
+            computation from properties.
+        """
+        self.path_ = path
+
+    def action (self):
+        """ Returns the action.
+        """
+        return self.action_
+
+    def root (self, set = None):
+        """ Sets/gets the 'root' flag. Target is root is it directly correspods to some
+            variant of a main target.
+        """
+        if set:
+            self.root_ = True
+        return self.root_
+
+    def creating_subvariant (self, s = None):
+        """ Gets or sets the subvariant which created this target. Subvariant
+        is set when target is brought into existance, and is never changed
+        after that. In particual, if target is shared by subvariant, only 
+        the first is stored.
+        s:  If specified, specified the value to set,
+                which should be instance of 'subvariant' class.
+        """
+        if s and not self.creating_subvariant ():
+            if self.creating_subvariant ():
+                raise BaseException ("Attempt to change 'dg'")
+
+            else:
+                self.creating_subvariant_ = s
+
+        return self.creating_subvariant_
+
+    def actualize_action (self, target):
+        if self.action_:
+            self.action_.actualize ()
+
+    # Return a human-readable representation of this target
+    #
+    # If this target has an action, that's:
+    #
+    #    { <action-name>-<self.name>.<self.type> <action-sources>... }
+    #
+    # otherwise, it's:
+    #
+    #    { <self.name>.<self.type> }
+    #
+    def str(self):
+        a = self.action()
+
+        name_dot_type = self.name_ + "." + self.type_
+
+        if a:
+            action_name = a.action_name()
+            ss = [ s.str() for s in a.sources()]
+                       
+            return "{ %s-%s %s}" % (action_name, name_dot_type, str(ss))
+        else:
+            return "{ " + name_dot_type + " }"
+        
+# private:
+
+    def actual_name (self):
+        if not self.actual_name_:
+            self.actual_name_ = '<' + self.grist() + '>' + self.name_
+
+        return self.actual_name_
+
+    def grist (self):
+        """Helper to 'actual_name', above. Compute unique prefix used to distinguish
+            this target from other targets with the same name which create different
+            file.
+        """
+        # Depending on target, there may be different approaches to generating
+        # unique prefixes. We'll generate prefixes in the form 
+        # <one letter approach code> <the actual prefix>
+        path = self.path ()
+        
+        if path:
+            # The target will be generated to a known path. Just use the path
+            # for identification, since path is as unique as it can get.
+            return 'p' + path
+
+        else:
+            # File is either source, which will be searched for, or is not a file at
+            # all. Use the location of project for distinguishing.
+            project_location = self.project_.get ('location')
+            path_components = b2.util.path.split(project_location)
+            location_grist = '!'.join (path_components)
+            
+            if self.action_:
+                ps = self.action_.properties ()
+                property_grist = ps.as_path ()
+                # 'property_grist' can be empty when 'ps' is an empty
+                # property set.
+                if property_grist:
+                    location_grist = location_grist + '/' + property_grist
+                        
+            return 'l' + location_grist
+
+    def __adjust_name(self, specified_name):
+        """Given the target name specified in constructor, returns the
+        name which should be really used, by looking at the <tag> properties.
+        The tag properties come in two flavour:
+          - <tag>value, 
+          - <tag>@rule-name
+        In the first case, value is just added to name
+        In the second case, the specified rule is called with specified name,
+        target type and properties and should return the new name.
+        If not <tag> property is specified, or the rule specified by
+        <tag> returns nothing, returns the result of calling 
+        virtual-target.add-suffix"""
+
+        if self.action_:
+            ps = self.action_.properties()
+        else:
+            ps = property_set.empty()
+
+        # FIXME: I'm not sure how this is used, need to check with
+        # Rene to figure out how to implement
+        #~ We add ourselves to the properties so that any tag rule can get
+        #~ more direct information about the target than just that available
+        #~ through the properties. This is useful in implementing
+        #~ name changes based on the sources of the target. For example to
+        #~ make unique names of object files based on the source file.
+        #~ --grafik
+        #ps = property_set.create(ps.raw() + ["<target>%s" % "XXXX"])
+        #ps = [ property-set.create [ $(ps).raw ] <target>$(__name__) ] ;
+        
+        tag = ps.get("<tag>")
+        
+        if tag:
+
+            if len(tag) > 1:
+                get_manager().errors()(
+                    """<tag>@rulename is present but is not the only <tag> feature""")
+
+            tag = tag[0]
+            if callable(tag):
+                self.name_ = tag(specified_name, self.type_, ps)
+            else:
+                if not tag[0] == '@':
+                    self.manager_.errors()("""The value of the <tag> feature must be '@rule-nane'""")
+
+                exported_ps = b2.util.value_to_jam(ps, methods=True)
+                self.name_ = b2.util.call_jam_function(
+                    tag[1:], specified_name, self.type_, exported_ps)
+                if self.name_:
+                    self.name_ = self.name_[0]
+        
+        # If there's no tag or the tag rule returned nothing.
+        if not tag or not self.name_:
+            self.name_ = add_prefix_and_suffix(specified_name, self.type_, ps)
+
+    def actualize_no_scanner(self):
+        name = self.actual_name()
+
+        # Do anything only on the first invocation
+        if not self.made_:
+            self.made_[name] = True
+
+            if self.action_:  
+                # For non-derived target, we don't care if there
+                # are several virtual targets that refer to the same name.
+                # One case when this is unavoidable is when file name is
+                # main.cpp and two targets have types CPP (for compiling)
+                # and MOCCABLE_CPP (for convertion to H via Qt tools).
+                self.virtual_targets().register_actual_name(name, self)
+
+            for i in self.dependencies_:
+                self.manager_.engine().add_dependency(name, i.actualize())
+
+            self.actualize_location(name)
+            self.actualize_action(name)
+            
+        return name
+
+@bjam_signature((["specified_name"], ["type"], ["property_set"]))
+def add_prefix_and_suffix(specified_name, type, property_set):
+    """Appends the suffix appropriate to 'type/property-set' combination
+    to the specified name and returns the result."""
+
+    property_set = b2.util.jam_to_value_maybe(property_set)
+
+    suffix = ""
+    if type:
+        suffix = b2.build.type.generated_target_suffix(type, property_set)
+    
+    # Handle suffixes for which no leading dot is desired.  Those are
+    # specified by enclosing them in <...>.  Needed by python so it
+    # can create "_d.so" extensions, for example.
+    if get_grist(suffix):
+        suffix = ungrist(suffix)
+    elif suffix:
+        suffix = "." + suffix
+
+    prefix = ""
+    if type:
+        prefix = b2.build.type.generated_target_prefix(type, property_set)
+
+    if specified_name.startswith(prefix):
+        prefix = ""
+
+    if not prefix:
+        prefix = ""
+    if not suffix:
+        suffix = ""
+    return prefix + specified_name + suffix
+
+
+class FileTarget (AbstractFileTarget):
+    """ File target with explicitly known location.
+
+        The file path is determined as
+           - value passed to the 'set_path' method, if any
+           - for derived files, project's build dir, joined with components
+             that describe action's properties. If the free properties
+             are not equal to the project's reference properties
+             an element with name of main target is added.
+           - for source files, project's source dir
+        
+        The file suffix is
+            - the value passed to the 'suffix' method, if any, or
+            - the suffix which correspond to the target's type.
+    """
+    def __init__ (self, name, type, project, action = None, path=None, exact=False):
+        AbstractFileTarget.__init__ (self, name, type, project, action, exact)
+
+        self.path_ = path
+
+    def __str__(self):
+        if self.type_:
+            return self.name_ + "." + self.type_
+        else:
+            return self.name_
+
+    def clone_with_different_type(self, new_type):
+        return FileTarget(self.name_, new_type, self.project_,
+                          self.action_, self.path_, exact=True)
+        
+    def actualize_location (self, target):
+        engine = self.project_.manager_.engine ()
+
+        if self.action_:
+            # This is a derived file.
+            path = self.path ()
+            engine.set_target_variable (target, 'LOCATE', path)
+
+            # Make sure the path exists.
+            engine.add_dependency (target, path)
+            common.mkdir(engine, path)
+
+            # It's possible that the target name includes a directory
+            # too, for example when installing headers. Create that
+            # directory.
+            d = os.path.dirname(get_value(target))
+            if d:
+                d = os.path.join(path, d)
+                engine.add_dependency(target, d)
+                common.mkdir(engine, d)
+
+            # For real file target, we create a fake target that
+            # depends on the real target. This allows to run
+            #
+            #    bjam hello.o
+            #
+            # without trying to guess the name of the real target.            
+            # Note the that target has no directory name, and a special
+            # grist <e>.
+            #
+            # First, that means that "bjam hello.o" will build all
+            # known hello.o targets.
+            # Second, the <e> grist makes sure this target won't be confused
+            # with other targets, for example, if we have subdir 'test'
+            # with target 'test' in it that includes 'test.o' file,
+            # then the target for directory will be just 'test' the target
+            # for test.o will be <ptest/bin/gcc/debug>test.o and the target
+            # we create below will be <e>test.o
+            engine.add_dependency("<e>%s" % get_value(target), target)
+
+            # Allow bjam <path-to-file>/<file> to work.  This won't catch all
+            # possible ways to refer to the path (relative/absolute, extra ".",
+            # various "..", but should help in obvious cases.
+            engine.add_dependency("<e>%s" % (os.path.join(path, get_value(target))), target)
+            
+        else:
+            # This is a source file.
+            engine.set_target_variable (target, 'SEARCH', self.project_.get ('source-location'))
+    
+
+    def path (self):
+        """ Returns the directory for this target.
+        """
+        if not self.path_:
+            if self.action_:
+                p = self.action_.properties ()            
+                (target_path, relative_to_build_dir) = p.target_path ()
+                
+                if relative_to_build_dir:
+                    # Indicates that the path is relative to
+                    # build dir.
+                    target_path = os.path.join (self.project_.build_dir (), target_path)
+                                
+                # Store the computed path, so that it's not recomputed
+                # any more
+                self.path_ = target_path
+
+        return self.path_
+
+
+class NotFileTarget(AbstractFileTarget):
+
+    def __init__(self, name, project, action):
+        AbstractFileTarget.__init__(self, name, None, project, action)
+
+    def path(self):
+        """Returns nothing, to indicate that target path is not known."""
+        return None
+
+    def actualize_location(self, target):
+        bjam.call("NOTFILE", target)
+        bjam.call("ALWAYS", target)
+        bjam.call("NOUPDATE", target)
+
+
+class Action:
+    """ Class which represents an action.
+        Both 'targets' and 'sources' should list instances of 'VirtualTarget'.
+        Action name should name a rule with this prototype
+            rule action_name ( targets + : sources * : properties * )
+        Targets and sources are passed as actual jam targets. The rule may
+        not establish dependency relationship, but should do everything else.
+    """
+    def __init__ (self, manager, sources, action_name, prop_set):
+        assert(isinstance(prop_set, property_set.PropertySet))
+        assert type(sources) == types.ListType
+        self.sources_ = sources
+        self.action_name_ = action_name
+        if not prop_set:
+            prop_set = property_set.empty()
+        self.properties_ = prop_set
+        if not all(isinstance(v, VirtualTarget) for v in prop_set.get('implicit-dependency')):
+            import pdb
+            pdb.set_trace()
+
+        self.manager_ = manager
+        self.engine_ = self.manager_.engine ()
+        self.targets_ = []
+
+        # Indicates whether this has been actualized or not.
+        self.actualized_ = False
+        
+        self.dependency_only_sources_ = []
+        self.actual_sources_ = []
+        
+        
+    def add_targets (self, targets):
+        self.targets_ += targets
+
+
+    def replace_targets (old_targets, new_targets):
+        self.targets_ = [t for t in targets if not t in old_targets] + new_targets
+
+    def targets (self):
+        return self.targets_
+
+    def sources (self):
+        return self.sources_
+
+    def action_name (self):
+        return self.action_name_
+
+    def properties (self):
+        return self.properties_
+
+    def actualize (self):
+        """ Generates actual build instructions.
+        """
+        if self.actualized_:
+            return
+            
+        self.actualized_ = True
+
+        ps = self.properties ()
+        properties = self.adjust_properties (ps)
+
+
+        actual_targets = []
+        
+        for i in self.targets ():
+            actual_targets.append (i.actualize ())
+
+        self.actualize_sources (self.sources (), properties)
+
+        self.engine_.add_dependency (actual_targets, self.actual_sources_ + self.dependency_only_sources_)
+
+        # This works around a bug with -j and actions that
+        # produce multiple target, where:
+        # - dependency on the first output is found, and
+        #   the action is started
+        # - dependency on the second output is found, and
+        #   bjam noticed that command is already running
+        # - instead of waiting for the command, dependents
+        #   of the second targets are immediately updated.
+        if len(actual_targets) > 1:
+            bjam.call("INCLUDES", actual_targets, actual_targets)
+
+        # FIXME: check the comment below. Was self.action_name_ [1]
+        # Action name can include additional argument to rule, which should not
+        # be passed to 'set-target-variables'
+        # FIXME: breaking circular dependency
+        import toolset
+        toolset.set_target_variables (self.manager_, self.action_name_, actual_targets, properties)
+             
+        engine = self.manager_.engine ()
+
+        # FIXME: this is supposed to help --out-xml option, but we don't
+        # implement that now, and anyway, we should handle it in Python,
+        # not but putting variables on bjam-level targets.
+        bjam.call("set-target-variable", actual_targets, ".action", repr(self))
+        
+        self.manager_.engine ().set_update_action (self.action_name_, actual_targets, self.actual_sources_,
+                                                   properties)
+        
+        # Since we set up creating action here, we also set up
+        # action for cleaning up
+        self.manager_.engine ().set_update_action ('common.Clean', 'clean-all',
+                                                   actual_targets)
+
+        return actual_targets
+
+    def actualize_source_type (self, sources, prop_set):
+        """ Helper for 'actualize_sources'.
+            For each passed source, actualizes it with the appropriate scanner.
+            Returns the actualized virtual targets.
+        """
+        result = []
+        for i in sources:
+            scanner = None
+
+# FIXME: what's this?
+#            if isinstance (i, str):
+#                i = self.manager_.get_object (i)
+                
+            if i.type ():
+                scanner = b2.build.type.get_scanner (i.type (), prop_set)
+
+            r = i.actualize (scanner)
+            result.append (r)
+        
+        return result
+    
+    def actualize_sources (self, sources, prop_set):
+        """ Creates actual jam targets for sources. Initializes two member
+            variables:
+            'self.actual_sources_' -- sources which are passed to updating action
+            'self.dependency_only_sources_' -- sources which are made dependencies, but
+            are not used otherwise.
+            
+            New values will be *appended* to the variables. They may be non-empty,
+            if caller wants it.
+        """
+        dependencies = self.properties_.get ('<dependency>')
+                
+        self.dependency_only_sources_ += self.actualize_source_type (dependencies, prop_set)
+        self.actual_sources_ += self.actualize_source_type (sources, prop_set)
+
+        # This is used to help bjam find dependencies in generated headers
+        # in other main targets.
+        # Say:
+        #
+        #   make a.h : ....... ;
+        #   exe hello : hello.cpp : <implicit-dependency>a.h ;
+        #
+        # However, for bjam to find the dependency the generated target must
+        # be actualized (i.e. have the jam target). In the above case,
+        # if we're building just hello ("bjam hello"), 'a.h' won't be
+        # actualized unless we do it here.
+        implicit = self.properties_.get("<implicit-dependency>")
+
+        for i in implicit:
+            i.actualize()
+
+    def adjust_properties (self, prop_set):
+        """ Determines real properties when trying building with 'properties'.
+            This is last chance to fix properties, for example to adjust includes
+            to get generated headers correctly. Default implementation returns
+            its argument.
+        """
+        return prop_set
+
+
+class NullAction (Action):
+    """ Action class which does nothing --- it produces the targets with
+        specific properties out of nowhere. It's needed to distinguish virtual
+        targets with different properties that are known to exist, and have no 
+        actions which create them.
+    """
+    def __init__ (self, manager, prop_set):
+        Action.__init__ (self, manager, [], None, prop_set)
+        
+    def actualize (self):
+        if not self.actualized_:
+            self.actualized_ = True
+
+            for i in self.targets ():
+                i.actualize ()
+
+class NonScanningAction(Action):
+    """Class which acts exactly like 'action', except that the sources
+    are not scanned for dependencies."""
+
+    def __init__(self, sources, action_name, property_set):
+        #FIXME: should the manager parameter of Action.__init__
+        #be removed? -- Steven Watanabe
+        Action.__init__(self, b2.manager.get_manager(), sources, action_name, property_set)
+
+    def actualize_source_type(self, sources, property_set):
+
+        result = []
+        for s in sources:
+            result.append(s.actualize())
+        return result
+
+def traverse (target, include_roots = False, include_sources = False):
+    """ Traverses the dependency graph of 'target' and return all targets that will
+        be created before this one is created. If root of some dependency graph is
+        found during traversal, it's either included or not, dependencing of the
+        value of 'include_roots'. In either case, sources of root are not traversed.
+    """
+    result = []
+    
+    if target.action ():
+        action = target.action ()
+        
+        # This includes 'target' as well
+        result += action.targets ()
+
+        for t in action.sources ():
+
+            # FIXME:
+            # TODO: see comment in Manager.register_object ()
+            #if not isinstance (t, VirtualTarget):
+            #    t = target.project_.manager_.get_object (t)
+                
+            if not t.root ():
+                result += traverse (t, include_roots, include_sources)
+
+            elif include_roots:
+                result.append (t)
+
+    elif include_sources:
+        result.append (target)
+
+    return result
+
+def clone_action (action, new_project, new_action_name, new_properties):
+    """Takes an 'action' instances and creates new instance of it
+    and all produced target. The rule-name and properties are set
+    to 'new-rule-name' and 'new-properties', if those are specified.
+    Returns the cloned action."""
+
+    if not new_action_name:
+        new_action_name = action.action_name()
+
+    if not new_properties:
+        new_properties = action.properties()
+
+    cloned_action = action.__class__(action.manager_, action.sources(), new_action_name,
+                                     new_properties)
+                          
+    cloned_targets = []
+    for target in action.targets():
+
+        n = target.name()
+        # Don't modify the name of the produced targets. Strip the directory f
+        cloned_target = FileTarget(n, target.type(), new_project,
+                                   cloned_action, exact=True)
+
+        d = target.dependencies()
+        if d:
+            cloned_target.depends(d)
+        cloned_target.root(target.root())
+        cloned_target.creating_subvariant(target.creating_subvariant())
+
+        cloned_targets.append(cloned_target)
+
+    return cloned_action
+
+class Subvariant:
+    
+    def __init__ (self, main_target, prop_set, sources, build_properties, sources_usage_requirements, created_targets):
+        """ 
+        main_target:                 The instance of MainTarget class
+        prop_set:                    Properties requested for this target
+        sources:
+        build_properties:            Actually used properties
+        sources_usage_requirements:  Properties propagated from sources
+        created_targets:             Top-level created targets
+        """
+        self.main_target_ = main_target
+        self.properties_ = prop_set
+        self.sources_ = sources
+        self.build_properties_ = build_properties
+        self.sources_usage_requirements_ = sources_usage_requirements
+        self.created_targets_ = created_targets
+
+        self.usage_requirements_ = None
+        
+        # Pre-compose the list of other dependency graphs, on which this one
+        # depends
+        deps = build_properties.get('<implicit-dependency>')
+        
+        self.other_dg_ = []
+        for d in deps:
+            self.other_dg_.append(d.creating_subvariant ())
+
+        self.other_dg_ = unique (self.other_dg_)
+
+        self.implicit_includes_cache_ = {}
+        self.target_directories_ = None
+               
+    def main_target (self):
+        return self.main_target_
+    
+    def created_targets (self):
+        return self.created_targets_
+    
+    def requested_properties (self):
+        return self.properties_
+    
+    def build_properties (self):
+        return self.build_properties_
+    
+    def sources_usage_requirements (self):
+        return self.sources_usage_requirements_
+    
+    def set_usage_requirements (self, usage_requirements):
+        self.usage_requirements_ = usage_requirements
+    
+    def usage_requirements (self):
+        return self.usage_requirements_
+
+    def all_referenced_targets(self, result):
+        """Returns all targets referenced by this subvariant,
+        either directly or indirectly, and either as sources,
+        or as dependency properties. Targets referred with
+        dependency property are returned a properties, not targets."""
+
+        # Find directly referenced targets.
+        deps = self.build_properties().dependency()
+        all_targets = self.sources_ + deps
+        
+        # Find other subvariants.
+        r = []
+        for e in all_targets:
+            if not e in result:
+                result.add(e)
+                if isinstance(e, property.Property):
+                    t = e.value()
+                else:
+                    t = e
+                                    
+                # FIXME: how can this be?
+                cs = t.creating_subvariant()
+                if cs:
+                    r.append(cs)
+        r = unique(r)
+        for s in r:
+            if s != self:
+                s.all_referenced_targets(result)
+
+
+    def implicit_includes (self, feature, target_type):
+        """ Returns the properties which specify implicit include paths to
+            generated headers. This traverses all targets in this subvariant,
+            and subvariants referred by <implcit-dependecy>properties.
+            For all targets which are of type 'target-type' (or for all targets,
+            if 'target_type' is not specified), the result will contain
+            <$(feature)>path-to-that-target.
+        """
+
+        if not target_type:
+            key = feature
+        else:
+            key = feature + "-" + target_type
+
+            
+        result = self.implicit_includes_cache_.get(key)
+        if not result:
+            target_paths = self.all_target_directories(target_type)
+            target_paths = unique(target_paths)
+            result = ["<%s>%s" % (feature, p) for p in target_paths]
+            self.implicit_includes_cache_[key] = result
+
+        return result
+
+    def all_target_directories(self, target_type = None):
+        # TODO: does not appear to use target_type in deciding
+        # if we've computed this already.
+        if not self.target_directories_:
+            self.target_directories_ = self.compute_target_directories(target_type)
+        return self.target_directories_
+
+    def compute_target_directories(self, target_type=None):
+        result = []
+        for t in self.created_targets():
+            if not target_type or b2.build.type.is_derived(t.type(), target_type):
+                result.append(t.path())
+
+        for d in self.other_dg_:
+            result.extend(d.all_target_directories(target_type))
+
+        result = unique(result)
+        return result
diff --git a/jam-files/boost-build/kernel/boost-build.jam b/jam-files/boost-build/kernel/boost-build.jam
new file mode 100644
index 00000000..377f6ec0
--- /dev/null
+++ b/jam-files/boost-build/kernel/boost-build.jam
@@ -0,0 +1,5 @@
+# Copyright 2003 Dave Abrahams 
+# Distributed under the Boost Software License, Version 1.0. 
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) 
+
+boost-build . ;
diff --git a/jam-files/boost-build/kernel/bootstrap.jam b/jam-files/boost-build/kernel/bootstrap.jam
new file mode 100644
index 00000000..89048af9
--- /dev/null
+++ b/jam-files/boost-build/kernel/bootstrap.jam
@@ -0,0 +1,263 @@
+# Copyright 2003 Dave Abrahams 
+# Copyright 2003, 2005, 2006 Rene Rivera 
+# Copyright 2003, 2005, 2006 Vladimir Prus 
+# Distributed under the Boost Software License, Version 1.0. 
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) 
+
+# First of all, check the jam version
+
+if $(JAM_VERSION:J="") < 030112
+{
+    ECHO "error: Boost.Jam version 3.1.12 or later required" ;
+    EXIT ;
+}
+
+local required-rules = GLOB-RECURSIVELY HAS_NATIVE_RULE ;
+
+for local r in $(required-rules)
+{
+    if ! $(r) in [ RULENAMES ]
+    {
+        ECHO "error: builtin rule '$(r)' is not present" ;
+        ECHO "error: your version of bjam is likely out of date" ;
+        ECHO "error: please get a fresh version from SVN." ;
+        EXIT ;
+    }
+}
+
+local native =
+    regex transform 2
+    ;
+while $(native)
+{
+    if ! [ HAS_NATIVE_RULE $(native[1]) :
+                           $(native[2]) :
+               $(native[3]) ]
+    {
+        ECHO "error: missing native rule '$(native[1]).$(native[2])'" ;
+        ECHO "error: or interface version of that rule is too low" ;
+        ECHO "error: your version of bjam is likely out of date" ;
+        ECHO "error: please get a fresh version from SVN." ;
+        EXIT ;
+    }
+    native = $(native[4-]) ;
+}
+
+# Check that the builtin .ENVIRON module is present. We don't have a
+# builtin to check that a module is present, so we assume that the PATH
+# environment variable is always set and verify that the .ENVIRON module
+# has non-empty value of that variable.
+module .ENVIRON
+{
+    local p = $(PATH) $(Path) $(path) ;
+    if ! $(p)
+    {
+        ECHO "error: no builtin module .ENVIRON is found" ;
+        ECHO "error: your version of bjam is likely out of date" ;
+        ECHO "error: please get a fresh version from SVN." ;
+        EXIT ;
+    }
+}
+
+# Check that @() functionality is present. Similarly to modules,
+# we don't have a way to test that directly. Instead we check that
+# $(TMPNAME) functionality is present which was added at roughly
+# the same time (more precisely it was added just before).
+{
+    if ! $(TMPNAME)
+    {
+        ECHO "error: no @() functionality found" ;
+        ECHO "error: your version of bjam is likely out of date" ;
+        ECHO "error: please get a fresh version from SVN." ;
+        EXIT ;
+    }
+}
+
+# Make sure that \n escape is avaiable.
+if "\n" = "n"
+{
+    if $(OS) = CYGWIN 
+    {        
+        ECHO "warning: escape sequences are not supported" ;
+        ECHO "warning: this will cause major misbehaviour on cygwin" ;
+        ECHO "warning: your version of bjam is likely out of date" ;
+        ECHO "warning: please get a fresh version from SVN." ;
+    }    
+}
+
+# Bootstrap the module system. Then bring the import rule into the global module.
+#
+SEARCH on <module@>modules.jam = $(.bootstrap-file:D) ;
+module modules { include <module@>modules.jam ; }
+IMPORT modules : import : : import ;
+
+{
+    # Add module subdirectories to the BOOST_BUILD_PATH, which allows
+    # us to make an incremental refactoring step by moving modules to
+    # the appropriate subdirectories, thereby achieving some physical
+    # separation of different layers without changing all of our code
+    # to specify subdirectories in import statements or use an extra
+    # level of qualification on imported names.
+
+    local subdirs =
+      kernel        # only the most-intrinsic modules: modules, errors
+      util          # low-level substrate: string/number handling, etc.
+      build         # essential elements of the build system architecture
+      tools         # toolsets for handling specific build jobs and targets.
+      contrib       # user contributed (unreviewed) modules
+      .             # build-system.jam lives here
+      ;
+    local whereami = [ NORMALIZE_PATH $(.bootstrap-file:DT) ] ;
+    BOOST_BUILD_PATH += $(whereami:D)/$(subdirs) ;
+
+    modules.poke .ENVIRON : BOOST_BUILD_PATH : $(BOOST_BUILD_PATH) ;
+    
+    modules.poke : EXTRA_PYTHONPATH : $(whereami) ;
+}
+
+# Reload the modules, to clean up things. The modules module can tolerate
+# being included twice.
+#
+import modules ;
+
+# Process option plugins first to alow them to prevent loading
+# the rest of the build system.
+#
+import option ;
+local dont-build = [ option.process ] ;
+
+# Should we skip building, i.e. loading the build system, according
+# to the options processed?
+#
+if ! $(dont-build)
+{
+    if ! --python in $(ARGV)
+    {
+        # Allow users to override the build system file from the
+        # command-line (mostly for testing)
+        local build-system = [ MATCH --build-system=(.*) : $(ARGV) ] ;
+        build-system ?= build-system ;
+
+        # Use last element in case of multiple command-line options
+        import $(build-system[-1]) ;
+    }
+    else
+    {
+        ECHO "Boost.Build V2 Python port (experimental)" ;
+                
+        # Define additional interface that is exposed to Python code. Python code will
+        # also have access to select bjam builtins in the 'bjam' module, but some
+        # things are easier to define outside C.
+        module python_interface
+        {
+            rule load ( module-name : location )
+            {        
+                USER_MODULE $(module-name) ;
+	        # Make all rules in the loaded module available in
+	        # the global namespace, so that we don't have
+	        # to bother specifying "right" module when calling
+	        # from Python.
+                module $(module-name)
+                {
+                    __name__ = $(1) ;
+                    include $(2) ;
+                    local rules = [ RULENAMES $(1) ] ;
+                    IMPORT $(1) : $(rules) : $(1) : $(1).$(rules) ;
+                }
+            }    
+            
+            rule peek ( module-name ? : variables + )
+            {
+                module $(<)
+                {
+                    return $($(>)) ;
+                }
+            }
+            
+            rule set-variable ( module-name : name : value * )
+            {
+                module $(<)
+                {
+                    $(>) = $(3) ;
+                }        
+            }
+            
+            rule set-top-level-targets ( targets * )
+            {
+                DEPENDS all : $(targets) ;
+            }
+            
+            rule call-in-module ( m : rulename : * )
+            {
+                module $(m)
+                {
+                    return [ $(2) $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ] ;
+                }                
+            }
+
+            
+            rule set-update-action ( action : targets * : sources * : properties * )
+            {
+                $(action) $(targets) : $(sources) : $(properties) ;
+            }
+            
+            rule set-update-action-in-module ( m : action : targets * : sources * : properties * )
+            {
+                module $(m)
+                {
+                    $(2) $(3) : $(4) : $(5) ;
+                }                
+            }
+                        
+            rule set-target-variable ( targets + : variable : value * : append ? )
+            {
+                if $(append)
+                {            
+	            $(variable) on $(targets) += $(value) ;
+                }
+                else
+                {
+	            $(variable) on $(targets) = $(value) ;            
+                }        
+            }        
+
+            rule get-target-variable ( targets + : variable )
+            {
+                return [ on $(targets) return $($(variable)) ] ;
+            }
+
+            rule import-rules-from-parent ( parent-module : this-module : user-rules * )
+            {
+                IMPORT $(parent-module) : $(user-rules) : $(this-module) : $(user-rules) ;
+                EXPORT $(this-module) : $(user-rules) ;
+            }
+
+            rule mark-included ( targets * : includes * ) {
+                NOCARE $(includes) ;
+                INCLUDES $(targets) : $(includes) ;
+                ISFILE $(includes) ;
+            }
+        }
+
+        PYTHON_IMPORT_RULE bootstrap : bootstrap : PyBB : bootstrap ;
+        modules.poke PyBB : root : [ NORMALIZE_PATH $(.bootstrap-file:DT)/.. ] ;
+        
+        module PyBB
+        {
+            local ok = [ bootstrap $(root) ] ;
+            if ! $(ok)
+            {
+                EXIT ;
+            }            
+        }
+        
+        
+        #PYTHON_IMPORT_RULE boost.build.build_system : main : PyBB : main ;
+
+        #module PyBB
+        #{    
+        #    main ;
+        #}
+
+    }
+}
diff --git a/jam-files/boost-build/kernel/bootstrap.py b/jam-files/boost-build/kernel/bootstrap.py
new file mode 100644
index 00000000..2e8dd37b
--- /dev/null
+++ b/jam-files/boost-build/kernel/bootstrap.py
@@ -0,0 +1,25 @@
+# Copyright 2009 Vladimir Prus 
+#
+# Distributed under the Boost Software License, Version 1.0. 
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+import imp
+import sys
+
+def bootstrap(root_path):
+    """Performs python-side bootstrapping of Boost.Build/Python.
+
+    This function arranges for 'b2.whatever' package names to work, while also
+    allowing to put python files alongside corresponding jam modules.
+    """
+
+    m = imp.new_module("b2")
+    # Note that:
+    # 1. If __path__ is not list of strings, nothing will work
+    # 2. root_path is already list of strings.
+    m.__path__ = root_path
+    sys.modules["b2"] = m
+
+    import b2.build_system
+    return b2.build_system.main()
+
diff --git a/jam-files/boost-build/kernel/class.jam b/jam-files/boost-build/kernel/class.jam
new file mode 100644
index 00000000..b8e55af3
--- /dev/null
+++ b/jam-files/boost-build/kernel/class.jam
@@ -0,0 +1,420 @@
+# Copyright 2001, 2002, 2003 Dave Abrahams
+# Copyright 2002, 2005 Rene Rivera
+# Copyright 2002, 2003 Vladimir Prus
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+# Polymorphic class system built on top of core Jam facilities.
+#
+# Classes are defined by 'class' keywords::
+#
+#     class myclass
+#     {
+#         rule __init__ ( arg1 )     # constructor
+#         {
+#             self.attribute = $(arg1) ;
+#         }
+#
+#         rule method1 ( )           # method
+#         {
+#             return [ method2 ] ;
+#         }
+#
+#         rule method2 ( )           # method
+#         {
+#             return $(self.attribute) ;
+#         }
+#     }
+#
+# The __init__ rule is the constructor, and sets member variables.
+#
+# New instances are created by invoking [ new <class> <args...> ]:
+#
+#     local x = [ new myclass foo ] ;        # x is a new myclass object
+#     assert.result foo : [ $(x).method1 ] ; # $(x).method1 returns "foo"
+#
+# Derived class are created by mentioning base classes in the declaration::
+#
+#     class derived : myclass
+#     {
+#          rule __init__ ( arg )
+#          {
+#              myclass.__init__ $(arg) ;  # call base __init__
+#
+#          }
+#
+#          rule method2 ( )           # method override
+#          {
+#              return $(self.attribute)XXX ;
+#          }
+#     }
+#
+# All methods operate virtually, replacing behavior in the base classes. For
+# example::
+#
+#     local y = [ new derived foo ] ;            # y is a new derived object
+#     assert.result fooXXX : [ $(y).method1 ] ;  # $(y).method1 returns "foo"
+#
+# Each class instance is its own core Jam module. All instance attributes and
+# methods are accessible without additional qualification from within the class
+# instance. All rules imported in class declaration, or visible in base classses
+# are also visible. Base methods are available in qualified form:
+# base-name.method-name. By convention, attribute names are prefixed with
+# "self.".
+
+import modules ;
+import numbers ;
+
+
+rule xinit ( instance : class )
+{
+    module $(instance)
+    {
+        __class__ = $(2) ;
+        __name__ = $(1) ;
+    }
+}
+
+
+rule new ( class args * : * )
+{
+    .next-instance ?= 1 ;
+    local id = object($(class))@$(.next-instance) ;
+
+    xinit $(id) : $(class) ;
+
+    INSTANCE $(id) : class@$(class) ;
+    IMPORT_MODULE $(id) ;
+    $(id).__init__ $(args) : $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ;
+
+    # Bump the next unique object name.
+    .next-instance = [ numbers.increment $(.next-instance) ] ;
+
+    # Return the name of the new instance.
+    return $(id) ;
+}
+
+
+rule bases ( class )
+{
+    module class@$(class)
+    {
+        return $(__bases__) ;
+    }
+}
+
+
+rule is-derived ( class : bases + )
+{
+    local stack = $(class) ;
+    local visited found ;
+    while ! $(found) && $(stack)
+    {
+        local top = $(stack[1]) ;
+        stack = $(stack[2-]) ;
+        if ! ( $(top) in $(visited) )
+        {
+            visited += $(top) ;
+            stack += [ bases $(top) ] ;
+
+            if $(bases) in $(visited)
+            {
+                found = true ;
+            }
+        }
+    }
+    return $(found) ;
+}
+
+
+# Returns true if the 'value' is a class instance.
+#
+rule is-instance ( value )
+{
+    return [ MATCH "^(object\\()[^@]+\\)@.*" : $(value) ] ;
+}
+
+
+# Check if the given value is of the given type.
+#
+rule is-a (
+    instance  # The value to check.
+    : type  # The type to test for.
+)
+{
+    if [ is-instance $(instance) ]
+    {
+        return [ class.is-derived [ modules.peek $(instance) : __class__ ] : $(type) ] ;
+    }
+}
+
+
+local rule typecheck ( x )
+{
+    local class-name = [ MATCH "^\\[(.*)\\]$" : [ BACKTRACE 1 ] ] ;
+    if ! [ is-a $(x) : $(class-name) ]
+    {
+        return "Expected an instance of "$(class-name)" but got \""$(x)"\" for argument" ;
+    }
+}
+
+
+rule __test__ ( )
+{
+    import assert ;
+    import "class" : new ;
+
+    # This will be the construction function for a class called 'myclass'.
+    #
+    class myclass
+    {
+        import assert ;
+
+        rule __init__ ( x_ * : y_ * )
+        {
+            # Set some instance variables.
+            x = $(x_) ;
+            y = $(y_) ;
+            foo += 10 ;
+        }
+
+        rule set-x ( newx * )
+        {
+            x = $(newx) ;
+        }
+
+        rule get-x ( )
+        {
+            return $(x) ;
+        }
+
+        rule set-y ( newy * )
+        {
+            y = $(newy) ;
+        }
+
+        rule get-y ( )
+        {
+            return $(y) ;
+        }
+
+        rule f ( )
+        {
+            return [ g $(x) ] ;
+        }
+
+        rule g ( args * )
+        {
+            if $(x) in $(y)
+            {
+                return $(x) ;
+            }
+            else if $(y) in $(x)
+            {
+                return $(y) ;
+            }
+            else
+            {
+                return ;
+            }
+        }
+
+        rule get-class ( )
+        {
+            return $(__class__) ;
+        }
+
+        rule get-instance ( )
+        {
+            return $(__name__) ;
+        }
+
+        rule invariant ( )
+        {
+            assert.equal 1 : 1 ;
+        }
+
+        rule get-foo ( )
+        {
+            return $(foo) ;
+        }
+    }
+#    class myclass ;
+
+    class derived1 : myclass
+    {
+        rule __init__ ( z_ )
+        {
+            myclass.__init__ $(z_) : X ;
+            z = $(z_) ;
+        }
+
+        # Override g.
+        #
+        rule g ( args * )
+        {
+            return derived1.g ;
+        }
+
+        rule h ( )
+        {
+            return derived1.h ;
+        }
+
+        rule get-z ( )
+        {
+            return $(z) ;
+        }
+
+        # Check that 'assert.equal' visible in base class is visible here.
+        #
+        rule invariant2 ( )
+        {
+            assert.equal 2 : 2 ;
+        }
+
+        # Check that 'assert.variable-not-empty' visible in base class is
+        # visible here.
+        #
+        rule invariant3 ( )
+        {
+            local v = 10 ;
+            assert.variable-not-empty v ;
+        }
+    }
+#    class derived1 : myclass ;
+
+    class derived2 : myclass
+    {
+        rule __init__ ( )
+        {
+            myclass.__init__ 1 : 2 ;
+        }
+
+        # Override g.
+        #
+        rule g ( args * )
+        {
+            return derived2.g ;
+        }
+
+        # Test the ability to call base class functions with qualification.
+        #
+        rule get-x ( )
+        {
+            return [ myclass.get-x ] ;
+        }
+    }
+#    class derived2 : myclass ;
+
+    class derived2a : derived2
+    {
+        rule __init__
+        {
+            derived2.__init__ ;
+        }
+    }
+#    class derived2a : derived2 ;
+
+    local rule expect_derived2 ( [derived2] x ) { }
+
+    local a = [ new myclass 3 4 5 : 4 5 ] ;
+    local b = [ new derived1 4 ] ;
+    local b2 = [ new derived1 4 ] ;
+    local c = [ new derived2 ] ;
+    local d = [ new derived2 ] ;
+    local e = [ new derived2a ] ;
+
+    expect_derived2 $(d) ;
+    expect_derived2 $(e) ;
+
+    # Argument checking is set up to call exit(1) directly on failure, and we
+    # can not hijack that with try, so we should better not do this test by
+    # default. We could fix this by having errors look up and invoke the EXIT
+    # rule instead; EXIT can be hijacked (;-)
+    if --fail-typecheck in [ modules.peek : ARGV ]
+    {
+        try ;
+        {
+            expect_derived2 $(a) ;
+        }
+        catch
+            "Expected an instance of derived2 but got" instead
+            ;
+    }
+
+    #try ;
+    #{
+    #    new bad_subclass ;
+    #}
+    #catch
+    #  bad_subclass.bad_subclass failed to call base class constructor myclass.__init__
+    #  ;
+
+    #try ;
+    #{
+    #    class bad_subclass ;
+    #}
+    #catch bad_subclass has already been declared ;
+
+    assert.result 3 4 5 : $(a).get-x ;
+    assert.result 4 5 : $(a).get-y ;
+    assert.result 4 : $(b).get-x ;
+    assert.result X : $(b).get-y ;
+    assert.result 4 : $(b).get-z ;
+    assert.result 1 : $(c).get-x ;
+    assert.result 2 : $(c).get-y ;
+    assert.result 4 5 : $(a).f ;
+    assert.result derived1.g : $(b).f ;
+    assert.result derived2.g : $(c).f ;
+    assert.result derived2.g : $(d).f ;
+
+    assert.result 10 : $(b).get-foo ;
+
+    $(a).invariant ;
+    $(b).invariant2 ;
+    $(b).invariant3 ;
+
+    # Check that the __class__ attribute is getting properly set.
+    assert.result myclass : $(a).get-class ;
+    assert.result derived1 : $(b).get-class ;
+    assert.result $(a) : $(a).get-instance ;
+
+    $(a).set-x a.x ;
+    $(b).set-x b.x ;
+    $(c).set-x c.x ;
+    $(d).set-x d.x ;
+    assert.result a.x : $(a).get-x ;
+    assert.result b.x : $(b).get-x ;
+    assert.result c.x : $(c).get-x ;
+    assert.result d.x : $(d).get-x ;
+
+    class derived3 : derived1 derived2
+    {
+        rule __init__ ( )
+        {
+        }
+    }
+
+    assert.result : bases myclass ;
+    assert.result myclass : bases derived1 ;
+    assert.result myclass : bases derived2 ;
+    assert.result derived1 derived2 : bases derived3 ;
+
+    assert.true is-derived derived1 : myclass ;
+    assert.true is-derived derived2 : myclass ;
+    assert.true is-derived derived3 : derived1 ;
+    assert.true is-derived derived3 : derived2 ;
+    assert.true is-derived derived3 : derived1 derived2 myclass ;
+    assert.true is-derived derived3 : myclass ;
+
+    assert.false is-derived myclass : derived1 ;
+
+    assert.true is-instance $(a) ;
+    assert.false is-instance bar ;
+
+    assert.true is-a $(a) : myclass ;
+    assert.true is-a $(c) : derived2 ;
+    assert.true is-a $(d) : myclass ;
+    assert.false is-a literal : myclass ;
+}
diff --git a/jam-files/boost-build/kernel/errors.jam b/jam-files/boost-build/kernel/errors.jam
new file mode 100644
index 00000000..63b11e86
--- /dev/null
+++ b/jam-files/boost-build/kernel/errors.jam
@@ -0,0 +1,274 @@
+# Copyright 2003 Dave Abrahams
+# Copyright 2004 Vladimir Prus
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+# Print a stack backtrace leading to this rule's caller. Each argument
+# represents a line of output to be printed after the first line of the
+# backtrace.
+#
+rule backtrace ( skip-frames prefix messages * : * )
+{
+    local frame-skips = 5 9 13 17 21 25 29 33 37 41 45 49 53 57 61 65 69 73 77 81 ;
+    local drop-elements = $(frame-skips[$(skip-frames)]) ;
+    if ! ( $(skip-frames) in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 )
+    {
+        ECHO "warning: backtrace doesn't support skipping $(skip-frames) frames;"
+            "using 1 instead." ;
+        drop-elements = 5 ;
+    }
+
+    local args = $(.args) ;
+    if $(.user-modules-only)
+    {
+        local bt = [ nearest-user-location ] ;
+        ECHO "$(prefix) at $(bt) " ;
+        for local n in $(args)
+        {
+            if $($(n))-is-not-empty
+            {
+                ECHO $(prefix) $($(n)) ;
+            }
+        }
+    }
+    else
+    {
+        # Get the whole backtrace, then drop the initial quadruples
+        # corresponding to the frames that must be skipped.
+        local bt = [ BACKTRACE ] ;
+        bt = $(bt[$(drop-elements)-]) ;
+
+        while $(bt)
+        {
+            local m = [ MATCH ^(.+)\\.$ : $(bt[3]) ] ;
+            ECHO $(bt[1]):$(bt[2]): "in" $(bt[4]) "from module" $(m) ;
+
+            # The first time through, print each argument on a separate line.
+            for local n in $(args)
+            {
+                if $($(n))-is-not-empty
+                {
+                    ECHO $(prefix) $($(n)) ;
+                }
+            }
+            args = ;  # Kill args so that this never happens again.
+
+            # Move on to the next quadruple.
+            bt = $(bt[5-]) ;
+        }
+    }
+}
+
+.args ?= messages 2 3 4 5 6 7 8 9 ;
+.disabled ?= ;
+.last-error-$(.args) ?= ;
+
+
+# try-catch --
+#
+# This is not really an exception-handling mechanism, but it does allow us to
+# perform some error-checking on our error-checking. Errors are suppressed after
+# a try, and the first one is recorded. Use catch to check that the error
+# message matched expectations.
+
+# Begin looking for error messages.
+#
+rule try ( )
+{
+    .disabled += true ;
+    .last-error-$(.args) = ;
+}
+
+
+# Stop looking for error messages; generate an error if an argument of messages
+# is not found in the corresponding argument in the error call.
+#
+rule catch ( messages * : * )
+{
+    .disabled = $(.disabled[2-]) ;  # Pop the stack.
+
+    import sequence ;
+
+    if ! $(.last-error-$(.args))-is-not-empty
+    {
+        error-skip-frames 3 expected an error, but none occurred ;
+    }
+    else
+    {
+        for local n in $(.args)
+        {
+            if ! $($(n)) in $(.last-error-$(n))
+            {
+                local v = [ sequence.join $($(n)) : " " ] ;
+                v ?= "" ;
+                local joined = [ sequence.join $(.last-error-$(n)) : " " ] ;
+
+                .last-error-$(.args) = ;
+                error-skip-frames 3 expected \"$(v)\" in argument $(n) of error
+                    : got \"$(joined)\" instead ;
+            }
+        }
+    }
+}
+
+
+rule error-skip-frames ( skip-frames messages * : * )
+{
+    if ! $(.disabled)
+    {
+        backtrace $(skip-frames) error: $(messages) : $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ;
+        EXIT ;
+    }
+    else if ! $(.last-error-$(.args))
+    {
+        for local n in $(.args)
+        {
+            # Add an extra empty string so that we always have
+            # something in the event of an error
+            .last-error-$(n) = $($(n)) "" ;
+        }
+    }
+}
+
+if --no-error-backtrace in [ modules.peek : ARGV ]
+{
+    .no-error-backtrace = true ;
+}
+
+
+# Print an error message with a stack backtrace and exit.
+#
+rule error ( messages * : * )
+{
+    if $(.no-error-backtrace)
+    {
+        # Print each argument on a separate line.
+        for local n in $(.args)
+        {
+            if $($(n))-is-not-empty
+            {
+                if ! $(first-printed)
+                {
+                    ECHO error: $($(n)) ;
+                    first-printed = true ;
+                }
+                else
+                {
+                    ECHO $($(n)) ;
+                }
+            }
+        }
+        EXIT ;
+    }
+    else
+    {
+        error-skip-frames 3 $(1) : $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ;
+    }
+}
+
+
+# Same as 'error', but the generated backtrace will include only user files.
+#
+rule user-error ( messages * : * )
+{
+    .user-modules-only = 1 ;
+    error-skip-frames 3 $(1) : $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ;
+}
+
+
+# Print a warning message with a stack backtrace and exit.
+#
+rule warning
+{
+    backtrace 2 warning: $(1) : $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ;
+}
+
+
+# Convert an arbitrary argument list into a list with ":" separators and quoted
+# elements representing the same information. This is mostly useful for
+# formatting descriptions of arguments with which a rule was called when
+# reporting an error.
+#
+rule lol->list ( * )
+{
+    local result ;
+    local remaining = 1 2 3 4 5 6 7 8 9 ;
+    while $($(remaining))
+    {
+        local n = $(remaining[1]) ;
+        remaining = $(remaining[2-]) ;
+
+        if $(n) != 1
+        {
+            result += ":" ;
+        }
+        result += \"$($(n))\" ;
+    }
+    return $(result) ;
+}
+
+
+# Return the file:line for the nearest entry in backtrace which correspond to a
+# user module.
+#
+rule nearest-user-location ( )
+{
+    local bt = [ BACKTRACE ] ;
+
+    local result ;
+    while $(bt) && ! $(result)
+    {
+        local m = [ MATCH ^(.+)\\.$ : $(bt[3]) ] ;
+        local user-modules = ([Jj]amroot(.jam|.v2|)|([Jj]amfile(.jam|.v2|)|user-config.jam|site-config.jam|project-root.jam) ;
+
+        if [ MATCH $(user-modules) : $(bt[1]:D=) ]
+        {
+            result = $(bt[1]):$(bt[2]) ;
+        }
+        bt = $(bt[5-]) ;
+    }
+    return $(result) ;
+}
+
+
+# If optimized rule is available in Jam, use it.
+if NEAREST_USER_LOCATION in [ RULENAMES ]
+{
+    rule nearest-user-location ( )
+    {
+        local r = [ NEAREST_USER_LOCATION ] ;
+        return $(r[1]):$(r[2]) ;
+    }
+}
+
+
+rule __test__ ( )
+{
+    # Show that we can correctly catch an expected error.
+    try ;
+    {
+        error an error occurred : somewhere ;
+    }
+    catch an error occurred : somewhere ;
+
+    # Show that unexpected errors generate real errors.
+    try ;
+    {
+        try ;
+        {
+            error an error occurred : somewhere ;
+        }
+        catch an error occurred : nowhere ;
+    }
+    catch expected \"nowhere\" in argument 2 ;
+
+    # Show that not catching an error where one was expected is an error.
+    try ;
+    {
+        try ;
+        {
+        }
+        catch ;
+    }
+    catch expected an error, but none occurred ;
+}
diff --git a/jam-files/boost-build/kernel/modules.jam b/jam-files/boost-build/kernel/modules.jam
new file mode 100644
index 00000000..1f75354f
--- /dev/null
+++ b/jam-files/boost-build/kernel/modules.jam
@@ -0,0 +1,354 @@
+# Copyright 2003 Dave Abrahams
+# Copyright 2003, 2005 Vladimir Prus
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+# Essentially an include guard; ensures that no module is loaded multiple times.
+.loaded ?= ;
+
+# A list of modules currently being loaded for error reporting of circular
+# dependencies.
+.loading ?= ;
+
+# A list of modules needing to be tested using their __test__ rule.
+.untested ?= ;
+
+# A list of modules which have been tested using their __test__ rule.
+.tested ?= ;
+
+
+# Runs internal Boost Build unit tests for the specified module. The module's
+# __test__ rule is executed in its own module to eliminate any inadvertent
+# effects of testing module dependencies (such as assert) on the module itself.
+#
+local rule run-module-test ( m )
+{
+    local tested-modules = [ modules.peek modules : .tested ] ;
+
+    if ( ! $(m) in $(tested-modules) )  # Avoid recursive test invocations.
+        && ( ( --debug in $(argv) ) || ( --debug-module=$(m) in $(argv) ) )
+    {
+        modules.poke modules : .tested : $(tested-modules) $(m) ;
+
+        if ! ( __test__ in [ RULENAMES $(m) ] )
+        {
+            local argv = [ peek : ARGV ] ;
+            if ! ( --quiet in $(argv) ) && ( --debug-tests in $(argv) )
+            {
+                ECHO warning: no __test__ rule defined in module $(m) ;
+            }
+        }
+        else
+        {
+            if ! ( --quiet in $(argv) )
+            {
+                ECHO testing module $(m)... ;
+            }
+
+            local test-module = __test-$(m)__ ;
+            IMPORT $(m) : [ RULENAMES $(m) ] : $(test-module) : [ RULENAMES $(m) ] ;
+            IMPORT $(m) : __test__ : $(test-module) : __test__ : LOCALIZE ;
+            module $(test-module)
+            {
+                __test__ ;
+            }
+        }
+    }
+}
+
+
+# Return the binding of the given module.
+#
+rule binding ( module )
+{
+    return $($(module).__binding__) ;
+}
+
+
+# Sets the module-local value of a variable. This is the most reliable way to
+# set a module-local variable in a different module; it eliminates issues of
+# name shadowing due to dynamic scoping.
+#
+rule poke ( module-name ? : variables + : value * )
+{
+    module $(<)
+    {
+        $(>) = $(3) ;
+    }
+}
+
+
+# Returns the module-local value of a variable. This is the most reliable way to
+# examine a module-local variable in a different module; it eliminates issues of
+# name shadowing due to dynamic scoping.
+#
+rule peek ( module-name ? : variables + )
+{
+    module $(<)
+    {
+        return $($(>)) ;
+    }
+}
+
+
+# Call the given rule locally in the given module. Use this for rules accepting
+# rule names as arguments, so that the passed rule may be invoked in the context
+# of the rule's caller (for example, if the rule accesses module globals or is a
+# local rule). Note that rules called this way may accept at most 8 parameters.
+#
+rule call-in ( module-name ? : rule-name args * : * )
+{
+    module $(module-name)
+    {
+        return [ $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ] ;
+    }
+}
+
+
+# Given a possibly qualified rule name and arguments, remove any initial module
+# qualification from the rule and invoke it in that module. If there is no
+# module qualification, the rule is invoked in the global module. Note that
+# rules called this way may accept at most 8 parameters.
+#
+rule call-locally ( qualified-rule-name args * : * )
+{
+    local module-rule = [ MATCH (.*)\\.(.*) : $(qualified-rule-name) ] ;
+    local rule-name = $(module-rule[2]) ;
+    rule-name ?= $(qualified-rule-name) ;
+    #   We pass only 8 parameters here since Boost Jam allows at most 9 rule
+    # parameter positions and the call-in rule already uses up the initial
+    # position for the module name.
+    return [ call-in $(module-rule[1]) : $(rule-name) $(args) : $(2) : $(3) :
+        $(4) : $(5) : $(6) : $(7) : $(8) ] ;
+}
+
+
+# Load the indicated module if it is not already loaded.
+#
+rule load (
+      module-name  # Name of module to load. Rules will be defined in this
+                   # module.
+    : filename ?   # (partial) path to file; Defaults to $(module-name).jam.
+    : search *     # Directories in which to search for filename. Defaults to
+                   # $(BOOST_BUILD_PATH).
+)
+{
+    # Avoid loading modules twice.
+    if ! ( $(module-name) in $(.loaded) )
+    {
+        filename ?= $(module-name).jam ;
+
+        # Mark the module loaded so we do not try to load it recursively.
+        .loaded += $(module-name) ;
+
+        # Suppress tests if any module loads are already in progress.
+        local suppress-test = $(.loading[1]) ;
+
+        # Push this module on the loading stack.
+        .loading += $(module-name) ;
+
+        # Remember that it is untested.
+        .untested += $(module-name) ;
+
+        # Insert the new module's __name__ and __file__ globals.
+        poke $(module-name) : __name__ : $(module-name) ;
+        poke $(module-name) : __file__ : $(filename) ;
+
+        module $(module-name)
+        {
+            # Add some grist so that the module will have a unique target name.
+            local module-target = $(__file__:G=module@) ;
+
+            local search = $(3) ;
+            search ?= [ modules.peek : BOOST_BUILD_PATH ] ;
+            SEARCH on $(module-target) = $(search) ;
+            BINDRULE on $(module-target) = modules.record-binding ;
+
+            include $(module-target) ;
+
+            # Allow the module to see its own names with full qualification.
+            local rules = [ RULENAMES $(__name__) ] ;
+            IMPORT $(__name__) : $(rules) : $(__name__) : $(__name__).$(rules) ;
+        }
+
+        if $(module-name) != modules && ! [ binding $(module-name) ]
+        {
+            import errors ;
+            errors.error "Could not find module" $(module-name) in $(search) ;
+        }
+
+        # Pop the loading stack. Must happen before testing or we will run into
+        # a circular loading dependency.
+        .loading = $(.loading[1--2]) ;
+
+        # Run any pending tests if this is an outer load.
+        if ! $(suppress-test)
+        {
+            local argv = [ peek : ARGV ] ;
+            for local m in $(.untested)
+            {
+                run-module-test $(m) ;
+            }
+            .untested = ;
+        }
+    }
+    else if $(module-name) in $(.loading)
+    {
+        import errors ;
+        errors.error loading \"$(module-name)\"
+            : circular module loading dependency:
+            : $(.loading)" ->" $(module-name) ;
+    }
+}
+
+
+# This helper is used by load (above) to record the binding (path) of each
+# loaded module.
+#
+rule record-binding ( module-target : binding )
+{
+    $(.loading[-1]).__binding__ = $(binding) ;
+}
+
+
+# Transform each path in the list, with all backslashes converted to forward
+# slashes and all detectable redundancy removed. Something like this is probably
+# needed in path.jam, but I am not sure of that, I do not understand it, and I
+# am not ready to move all of path.jam into the kernel.
+#
+local rule normalize-raw-paths ( paths * )
+{
+    local result ;
+    for p in $(paths:T)
+    {
+        result += [ NORMALIZE_PATH $(p) ] ;
+    }
+    return $(result) ;
+}
+
+
+.cwd = [ PWD ] ;
+
+
+# Load the indicated module and import rule names into the current module. Any
+# members of rules-opt will be available without qualification in the caller's
+# module. Any members of rename-opt will be taken as the names of the rules in
+# the caller's module, in place of the names they have in the imported module.
+# If rules-opt = '*', all rules from the indicated module are imported into the
+# caller's module. If rename-opt is supplied, it must have the same number of
+# elements as rules-opt.
+#
+rule import ( module-names + : rules-opt * : rename-opt * )
+{
+    if ( $(rules-opt) = * || ! $(rules-opt) ) && $(rename-opt)
+    {
+        import errors ;
+        errors.error "Rule aliasing is only available for explicit imports." ;
+    }
+
+    if $(module-names[2]) && ( $(rules-opt) || $(rename-opt) )
+    {
+        import errors ;
+        errors.error "When loading multiple modules, no specific rules or"
+            "renaming is allowed" ;
+    }
+
+    local caller = [ CALLER_MODULE ] ;
+
+    # Import each specified module
+    for local m in $(module-names)
+    {
+        if ! $(m) in $(.loaded)
+        {
+            # If the importing module isn't already in the BOOST_BUILD_PATH,
+            # prepend it to the path.  We don't want to invert the search order
+            # of modules that are already there.
+
+            local caller-location ;
+            if $(caller)
+            {
+                caller-location = [ binding $(caller) ] ;
+                caller-location = $(caller-location:D) ;
+                caller-location = [ normalize-raw-paths $(caller-location:R=$(.cwd)) ] ;
+            }
+
+            local search = [ peek : BOOST_BUILD_PATH ] ;
+            search = [ normalize-raw-paths $(search:R=$(.cwd)) ] ;
+
+            if $(caller-location) && ! $(caller-location) in $(search)
+            {
+                search = $(caller-location) $(search) ;
+            }
+
+            load $(m) : : $(search) ;
+        }
+
+        IMPORT_MODULE $(m) : $(caller) ;
+
+        if $(rules-opt)
+        {
+            local source-names ;
+            if $(rules-opt) = *
+            {
+                local all-rules = [ RULENAMES $(m) ] ;
+                source-names = $(all-rules) ;
+            }
+            else
+            {
+                source-names = $(rules-opt) ;
+            }
+            local target-names = $(rename-opt) ;
+            target-names ?= $(source-names) ;
+            IMPORT $(m) : $(source-names) : $(caller) : $(target-names) ;
+        }
+    }
+}
+
+
+# Define exported copies in $(target-module) of all rules exported from
+# $(source-module). Also make them available in the global module with
+# qualification, so that it is just as though the rules were defined originally
+# in $(target-module).
+#
+rule clone-rules ( source-module target-module )
+{
+    local rules = [ RULENAMES $(source-module) ] ;
+
+    IMPORT $(source-module) : $(rules) : $(target-module) : $(rules) : LOCALIZE ;
+    EXPORT $(target-module) : $(rules) ;
+    IMPORT $(target-module) : $(rules) : : $(target-module).$(rules) ;
+}
+
+
+# These rules need to be available in all modules to implement module loading
+# itself and other fundamental operations.
+local globalize = peek poke record-binding ;
+IMPORT modules : $(globalize) : : modules.$(globalize) ;
+
+
+rule __test__ ( )
+{
+    import assert ;
+    import modules : normalize-raw-paths ;
+
+    module modules.__test__
+    {
+        foo = bar ;
+    }
+
+    assert.result bar : peek modules.__test__ : foo ;
+
+    poke modules.__test__ : foo : bar baz ;
+    assert.result bar baz : peek modules.__test__ : foo ;
+
+    assert.result c:/foo/bar : normalize-raw-paths c:/x/../foo/./xx/yy/../../bar ;
+    assert.result .          : normalize-raw-paths .                             ;
+    assert.result ..         : normalize-raw-paths ..                            ;
+    assert.result ../..      : normalize-raw-paths ../..                         ;
+    assert.result ..         : normalize-raw-paths ./..                          ;
+    assert.result / /        : normalize-raw-paths / \\                          ;
+    assert.result a          : normalize-raw-paths a                             ;
+    assert.result a          : normalize-raw-paths a/                            ;
+    assert.result /a         : normalize-raw-paths /a/                           ;
+    assert.result /          : normalize-raw-paths /a/..                         ;
+}
diff --git a/jam-files/boost-build/options/help.jam b/jam-files/boost-build/options/help.jam
new file mode 100644
index 00000000..b507e1ed
--- /dev/null
+++ b/jam-files/boost-build/options/help.jam
@@ -0,0 +1,212 @@
+# Copyright 2003 Dave Abrahams 
+# Copyright 2003, 2006 Rene Rivera 
+# Copyright 2003, 2006 Vladimir Prus 
+# Distributed under the Boost Software License, Version 1.0. 
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) 
+
+# This module is the plug-in handler for the --help and --help-.*
+# command-line options
+import modules ;
+import assert ;
+import doc : do-scan set-option set-output set-output-file print-help-usage print-help-top ;
+import sequence ;
+import set ;
+import project ;
+import print ;
+import os ;
+import version ;
+import path ;
+
+# List of possible modules, but which really aren't.
+#
+.not-modules =
+    boost-build bootstrap site-config test user-config
+    -tools allyourbase boost-base features python stlport testing unit-tests ;
+
+# The help system options are parsed here and handed off to the doc
+# module to translate into documentation requests and actions. The
+# understood options are:
+#
+#    --help-disable-<option>
+#    --help-doc-options
+#    --help-enable-<option>
+#    --help-internal
+#    --help-options
+#    --help-usage
+#    --help-output <type>
+#    --help-output-file <file>
+#    --help [<module-or-class>]
+#
+rule process (
+    command # The option.
+    : values * # The values, starting after the "=".
+    )
+{
+    assert.result --help : MATCH ^(--help).* : $(command) ;
+    local did-help = ;
+    switch $(command)
+    {
+        case --help-internal :
+        local path-to-modules = [ modules.peek : BOOST_BUILD_PATH ] ;
+        path-to-modules ?= . ;
+        local possible-modules = [ GLOB $(path-to-modules) : *\\.jam ] ;
+        local not-modules = [ GLOB $(path-to-modules) : *$(.not-modules)\\.jam ] ;
+        local modules-to-list =
+            [ sequence.insertion-sort
+                [ set.difference $(possible-modules:D=:S=) : $(not-modules:D=:S=) ] ] ;
+        local modules-to-scan ;
+        for local m in $(modules-to-list)
+        {
+            local module-files = [ GLOB $(path-to-modules) : $(m)\\.jam ] ;
+            modules-to-scan += $(module-files[1]) ;
+        }
+        do-scan $(modules-to-scan) : print-help-all ;
+        did-help = true ;
+
+        case --help-enable-* :
+        local option = [ MATCH --help-enable-(.*) : $(command) ] ; option = $(option:L) ;
+        set-option $(option) : enabled ;
+        did-help = true ;
+
+        case --help-disable-* :
+        local option = [ MATCH --help-disable-(.*) : $(command) ] ; option = $(option:L) ;
+        set-option $(option) ;
+        did-help = true ;
+
+        case --help-output :
+        set-output $(values[1]) ;
+        did-help = true ;
+
+        case --help-output-file :
+        set-output-file $(values[1]) ;
+        did-help = true ;
+
+        case --help-doc-options :
+        local doc-module-spec = [ split-symbol doc ] ;
+        do-scan $(doc-module-spec[1]) : print-help-options ;
+        did-help = true ;
+
+        case --help-options :
+        print-help-usage ;
+        did-help = true ;
+
+        case --help :
+        local spec = $(values[1]) ;
+        if $(spec)
+        {
+            local spec-parts = [ split-symbol $(spec) ] ;
+            if $(spec-parts)
+            {
+                if $(spec-parts[2])
+                {
+                    do-scan $(spec-parts[1]) : print-help-classes $(spec-parts[2]) ;
+                    do-scan $(spec-parts[1]) : print-help-rules $(spec-parts[2]) ;
+                    do-scan $(spec-parts[1]) : print-help-variables $(spec-parts[2]) ;
+                }
+                else
+                {
+                    do-scan $(spec-parts[1]) : print-help-module ;
+                }
+            }
+            else
+            {
+                EXIT "Unrecognized help option '"$(command)" "$(spec)"'." ;
+            }
+        }
+        else
+        {
+            version.print ;
+            ECHO ;
+            # First print documentation from the current Jamfile, if any.            
+            # FIXME: Generally, this duplication of project.jam logic is bad.
+            local names = [ modules.peek project : JAMROOT ]
+              [ modules.peek project : JAMFILE ] ;
+            local project-file = [ path.glob . : $(names) ] ;
+            if ! $(project-file)
+            {
+                project-file = [ path.glob-in-parents . : $(names) ] ;
+            }
+            
+            for local p in $(project-file)
+            {
+                do-scan $(p) : print-help-project $(p) ;
+            }
+            
+            # Next any user-config help.
+            local user-path = [ os.home-directories ] [ os.environ BOOST_BUILD_PATH ] ;
+            local user-config = [ GLOB $(user-path) : user-config.jam ] ;
+            if $(user-config)
+            {
+                do-scan $(user-config[1]) : print-help-config user $(user-config[1]) ;
+            }
+            
+            # Next any site-config help.
+            local site-config = [ GLOB $(user-path) : site-config.jam ] ;
+            if $(site-config)
+            {
+                do-scan $(site-config[1]) : print-help-config site $(site-config[1]) ;
+            }
+
+            # Then the overall help.
+            print-help-top ;
+        }
+        did-help = true ;
+    }
+    if $(did-help)
+    {
+        UPDATE all ;
+        NOCARE all ;
+    }
+    return $(did-help) ;
+}
+
+# Split a reference to a symbol into module and symbol parts.
+#
+local rule split-symbol (
+    symbol # The symbol to split.
+    )
+{
+    local path-to-modules = [ modules.peek : BOOST_BUILD_PATH ] ;
+    path-to-modules ?= . ;
+    local module-name = $(symbol) ;
+    local symbol-name = ;
+    local result = ;
+    while ! $(result)
+    {
+        local module-path = [ GLOB $(path-to-modules) : $(module-name)\\.jam ] ;
+        if $(module-path)
+        {
+            # The 'module-name' in fact refers to module. Return the full
+            # module path and a symbol within it. If 'symbol' passed to this
+            # rule is already module, 'symbol-name' will be empty. Otherwise,
+            # it's initialized on the previous loop iteration.
+            # In case there are several modules by this name,
+            # use the first one.
+            result = $(module-path[1]) $(symbol-name) ;
+        }
+        else
+        {
+            if ! $(module-name:S)
+            {
+                result = - ;
+            }
+            else
+            {
+                local next-symbol-part = [ MATCH ^.(.*) : $(module-name:S) ] ;
+                if $(symbol-name)
+                {
+                    symbol-name = $(next-symbol-part).$(symbol-name) ;
+                }
+                else
+                {
+                    symbol-name = $(next-symbol-part) ;
+                }
+                module-name = $(module-name:B) ;
+            }
+        }
+    }
+    if $(result) != -
+    {
+        return $(result) ;
+    }
+}
diff --git a/jam-files/boost-build/site-config.jam b/jam-files/boost-build/site-config.jam
new file mode 100644
index 00000000..ad22d674
--- /dev/null
+++ b/jam-files/boost-build/site-config.jam
@@ -0,0 +1,4 @@
+# Copyright 2002, 2003 Vladimir Prus 
+# Distributed under the Boost Software License, Version 1.0. 
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) 
+
diff --git a/jam-files/boost-build/tools/__init__.py b/jam-files/boost-build/tools/__init__.py
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/jam-files/boost-build/tools/__init__.py
diff --git a/jam-files/boost-build/tools/acc.jam b/jam-files/boost-build/tools/acc.jam
new file mode 100644
index 00000000..f04c9dc8
--- /dev/null
+++ b/jam-files/boost-build/tools/acc.jam
@@ -0,0 +1,118 @@
+# Copyright Vladimir Prus 2004.
+# Copyright Toon Knapen 2004.
+# Copyright Boris Gubenko 2007.
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt
+# or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+#
+# Boost.Build V2 toolset for the HP aC++ compiler.
+#
+
+import toolset : flags ;
+import feature ;
+import generators ;
+import common ;
+
+feature.extend toolset : acc ;
+toolset.inherit acc : unix ;
+generators.override builtin.lib-generator : acc.prebuilt ;
+generators.override acc.searched-lib-generator : searched-lib-generator ;
+
+# Configures the acc toolset.
+rule init ( version ? : user-provided-command * : options * )
+{
+    local condition = [ common.check-init-parameters acc
+        : version $(version) ] ;
+
+    local command = [ common.get-invocation-command acc : aCC
+        : $(user-provided-command) ] ;
+
+    common.handle-options acc : $(condition) : $(command) : $(options) ;
+}
+
+
+# Declare generators
+generators.register-c-compiler acc.compile.c : C : OBJ : <toolset>acc ;
+generators.register-c-compiler acc.compile.c++ : CPP : OBJ : <toolset>acc ;
+
+# Declare flags.
+flags acc CFLAGS <optimization>off : ;
+flags acc CFLAGS <optimization>speed : -O3 ;
+flags acc CFLAGS <optimization>space : -O2 ;
+
+flags acc CFLAGS <inlining>off : +d ;
+flags acc CFLAGS <inlining>on : ;
+flags acc CFLAGS <inlining>full : ;
+
+flags acc C++FLAGS <exception-handling>off : ;
+flags acc C++FLAGS <exception-handling>on : ;
+
+flags acc C++FLAGS <rtti>off : ;
+flags acc C++FLAGS <rtti>on : ;
+
+# We want the full path to the sources in the debug symbols because otherwise
+# the debugger won't find the sources when we use boost.build.
+flags acc CFLAGS <debug-symbols>on : -g ;
+flags acc LINKFLAGS <debug-symbols>on : -g ;
+flags acc LINKFLAGS <debug-symbols>off : -s ;
+
+# V2 does not have <shared-linkable>, not sure what this meant in V1.
+# flags acc CFLAGS <shared-linkable>true : +Z ;
+
+flags acc CFLAGS <profiling>on : -pg ;
+flags acc LINKFLAGS <profiling>on : -pg ;
+
+flags acc CFLAGS <address-model>64 : +DD64 ;
+flags acc LINKFLAGS <address-model>64 : +DD64 ;
+
+# It is unknown if there's separate option for rpath used only
+# at link time, similar to -rpath-link in GNU. We'll use -L.
+flags acc RPATH_LINK : <xdll-path> ;
+
+flags acc CFLAGS <cflags> ;
+flags acc C++FLAGS <cxxflags> ;
+flags acc DEFINES <define> ;
+flags acc UNDEFS <undef> ;
+flags acc HDRS <include> ;
+flags acc STDHDRS <sysinclude> ;
+flags acc LINKFLAGS <linkflags> ;
+flags acc ARFLAGS <arflags> ;
+
+flags acc LIBPATH <library-path> ;
+flags acc NEEDLIBS <library-file> ;
+flags acc FINDLIBS <find-shared-library> ;
+flags acc FINDLIBS <find-static-library> ;
+
+# Select the compiler name according to the threading model.
+flags acc CFLAGS <threading>multi : -mt   ;
+flags acc LINKFLAGS <threading>multi : -mt ;
+
+flags acc.compile.c++ TEMPLATE_DEPTH <c++-template-depth> ;
+
+
+actions acc.link bind NEEDLIBS
+{
+    $(CONFIG_COMMAND) -AA $(LINKFLAGS) -o "$(<[1])" -L"$(RPATH_LINK)" -L$(LIBPATH) -L$(STDLIBPATH) "$(>)" "$(NEEDLIBS)" "$(NEEDLIBS)" -l$(FINDLIBS) $(OPTIONS)
+}
+
+SPACE = " " ;
+actions acc.link.dll bind NEEDLIBS
+{
+    $(CONFIG_COMMAND) -AA -b $(LINKFLAGS) -o "$(<[1])" -L"$(RPATH_LINK)" -Wl,+h$(<[-1]:D=) -L$(LIBPATH) -L$(STDLIBPATH) "$(>)" "$(NEEDLIBS)" "$(NEEDLIBS)" -l$(FINDLIBS) $(OPTIONS)
+}
+
+actions acc.compile.c
+{
+    cc -c -I$(BOOST_ROOT) -U$(UNDEFS) -D$(DEFINES) $(CFLAGS) -I"$(HDRS)" -I"$(STDHDRS)" -o "$(<)" "$(>)" $(OPTIONS)
+}
+
+actions acc.compile.c++
+{
+    $(CONFIG_COMMAND) -AA -c -Wc,--pending_instantiations=$(TEMPLATE_DEPTH) -I$(BOOST_ROOT) -U$(UNDEFS) -D$(DEFINES) $(CFLAGS) $(C++FLAGS) -I"$(HDRS)" -I"$(STDHDRS)" -o "$(<)" "$(>)" $(OPTIONS)
+}
+
+actions updated together piecemeal acc.archive
+{
+    ar ru$(ARFLAGS:E="") "$(<)" "$(>)"
+}
diff --git a/jam-files/boost-build/tools/auto-index.jam b/jam-files/boost-build/tools/auto-index.jam
new file mode 100644
index 00000000..ebbf344e
--- /dev/null
+++ b/jam-files/boost-build/tools/auto-index.jam
@@ -0,0 +1,212 @@
+
+import feature ;
+import generators ;
+import "class" ;
+import toolset ;
+import targets ;
+import "class" : new ;
+import project ;
+
+feature.feature auto-index : off "on" ;
+feature.feature auto-index-internal : off "on" ;
+feature.feature auto-index-verbose : off "on" ;
+feature.feature auto-index-no-duplicates : off "on" ;
+feature.feature auto-index-script : : free ;
+feature.feature auto-index-prefix : : free ;
+feature.feature auto-index-type : : free ;
+feature.feature auto-index-section-names : "on" off ;
+
+toolset.flags auto-index.auto-index FLAGS <auto-index-internal>on : --internal-index ;
+toolset.flags auto-index.auto-index SCRIPT <auto-index-script> ;
+toolset.flags auto-index.auto-index PREFIX <auto-index-prefix> ;
+toolset.flags auto-index.auto-index INDEX_TYPE <auto-index-type> ;
+toolset.flags auto-index.auto-index FLAGS <auto-index-verbose>on : --verbose ;
+toolset.flags auto-index.auto-index FLAGS <auto-index-no-duplicates>on : --no-duplicates ;
+toolset.flags auto-index.auto-index FLAGS <auto-index-section-names>off : --no-section-names ;
+
+# <auto-index-binary> shell command to run AutoIndex
+# <auto-index-binary-dependencies> targets to build AutoIndex from sources.
+feature.feature <auto-index-binary> : : free ;
+feature.feature <auto-index-binary-dependencies> : : free dependency ;
+
+class auto-index-generator : generator
+{
+    import common modules path targets build-system ;
+    rule run ( project name ? : property-set : sources * )
+    {
+        # AutoIndex invocation command and dependencies.
+        local auto-index-binary = [ modules.peek auto-index : .command ] ;
+        local auto-index-binary-dependencies ;
+
+        if $(auto-index-binary)
+        {
+            # Use user-supplied command.
+            auto-index-binary = [ common.get-invocation-command auto-index : auto-index : $(auto-index-binary) ] ;
+        }
+        else
+        {
+            # Search for AutoIndex sources in sensible places, like
+            #   $(BOOST_ROOT)/tools/auto_index
+            #   $(BOOST_BUILD_PATH)/../../auto_index
+
+            # And build auto-index executable from sources.
+
+            local boost-root = [ modules.peek : BOOST_ROOT ] ;
+            local boost-build-path = [ build-system.location ] ;
+            local boost-build-path2 = [ modules.peek : BOOST_BUILD_PATH ] ;
+
+            local auto-index-dir ;
+
+            if $(boost-root)
+            {
+                auto-index-dir += [ path.join $(boost-root) tools ] ;
+            }
+
+            if $(boost-build-path)
+            {
+                auto-index-dir += $(boost-build-path)/../.. ;
+            }
+            if $(boost-build-path2)
+            {
+                auto-index-dir += $(boost-build-path2)/.. ;
+            }
+
+            #ECHO $(auto-index-dir) ;
+            auto-index-dir = [ path.glob $(auto-index-dir) : auto_index ] ;
+            #ECHO $(auto-index-dir) ;
+
+            # If the AutoIndex source directory was found, mark its main target
+            # as a dependency for the current project. Otherwise, try to find
+            # 'auto-index' in user's PATH
+            if $(auto-index-dir)
+            {
+                auto-index-dir = [ path.make $(auto-index-dir[1]) ] ;
+                auto-index-dir = $(auto-index-dir)/build ;
+                
+                #ECHO $(auto-index-dir) ;
+
+                # Get the main-target in AutoIndex directory.
+                local auto-index-main-target = [ targets.resolve-reference $(auto-index-dir) : $(project) ] ;
+                
+                #ECHO $(auto-index-main-target) ;
+
+                # The first element are actual targets, the second are
+                # properties found in target-id. We do not care about these
+                # since we have passed the id ourselves.
+                auto-index-main-target =
+                    [ $(auto-index-main-target[1]).main-target auto_index ] ;
+
+                #ECHO $(auto-index-main-target) ;
+
+                auto-index-binary-dependencies =
+                    [ $(auto-index-main-target).generate [ $(property-set).propagated ] ] ;
+
+                # Ignore usage-requirements returned as first element.
+                auto-index-binary-dependencies = $(auto-index-binary-dependencies[2-]) ;
+
+                # Some toolsets generate extra targets (e.g. RSP). We must mark
+                # all targets as dependencies for the project, but we will only
+                # use the EXE target for auto-index-to-boostbook translation.
+                for local target in $(auto-index-binary-dependencies)
+                {
+                    if [ $(target).type ] = EXE
+                    {
+                        auto-index-binary = 
+                            [ path.native 
+                                [ path.join
+                                    [ $(target).path ]
+                                    [ $(target).name ]
+                                ]
+                            ] ;
+                    }
+                }
+            }
+            else
+            {
+                ECHO "AutoIndex warning: The path to the auto-index executable was" ;
+                ECHO "  not provided. Additionally, couldn't find AutoIndex" ;
+                ECHO "  sources searching in" ;
+                ECHO "    * BOOST_ROOT/tools/auto-index" ;
+                ECHO "    * BOOST_BUILD_PATH/../../auto-index" ;
+                ECHO "  Will now try to find a precompiled executable by searching" ;
+                ECHO "  the PATH for 'auto-index'." ;
+                ECHO "  To disable this warning in the future, or to completely" ;
+                ECHO "  avoid compilation of auto-index, you can explicitly set the" ;
+                ECHO "  path to a auto-index executable command in user-config.jam" ;
+                ECHO "  or site-config.jam with the call" ;
+                ECHO "    using auto-index : /path/to/auto-index ;" ;
+
+                # As a last resort, search for 'auto-index' command in path. Note
+                # that even if the 'auto-index' command is not found,
+                # get-invocation-command will still return 'auto-index' and might
+                # generate an error while generating the virtual-target.
+
+                auto-index-binary = [ common.get-invocation-command auto-index : auto-index ] ;
+            }
+        }
+
+        # Add $(auto-index-binary-dependencies) as a dependency of the current
+        # project and set it as the <auto-index-binary> feature for the
+        # auto-index-to-boostbook rule, below.
+        property-set = [ $(property-set).add-raw
+            <dependency>$(auto-index-binary-dependencies)
+            <auto-index-binary>$(auto-index-binary)
+            <auto-index-binary-dependencies>$(auto-index-binary-dependencies)
+        ] ;
+        
+        #ECHO "binary = " $(auto-index-binary) ;
+        #ECHO "dependencies = " $(auto-index-binary-dependencies) ;
+
+        if [ $(property-set).get <auto-index> ] = "on"
+        {
+            return [ generator.run $(project) $(name) : $(property-set) : $(sources) ] ;
+        }
+        else
+        {
+            return [ generators.construct $(project) $(name) : DOCBOOK : $(property-set)
+              : $(sources) ] ;
+        }        
+    }
+}
+
+# Initialization of toolset.
+#
+# Parameters:
+#   command ?    -> path to AutoIndex executable.
+#
+# When command is not supplied toolset will search for AutoIndex directory and
+# compile the executable from source. If that fails we still search the path for
+# 'auto_index'.
+#
+rule init (
+        command ?   # path to the AutoIndex executable.
+    )
+{
+    if ! $(.initialized)
+    {
+        .initialized = true ;
+        .command = $(command) ;
+    }
+}
+
+toolset.flags auto-index.auto-index AI-COMMAND      <auto-index-binary> ;
+toolset.flags auto-index.auto-index AI-DEPENDENCIES <auto-index-binary-dependencies> ;
+
+generators.register [ class.new auto-index-generator auto-index.auto-index : DOCBOOK : DOCBOOK(%.auto_index) ] ;
+generators.override auto-index.auto-index : boostbook.boostbook-to-docbook ;
+
+rule auto-index ( target : source : properties * )
+{
+    # Signal dependency of auto-index sources on <auto-index-binary-dependencies>
+    # upon invocation of auto-index-to-boostbook.
+    #ECHO "AI-COMMAND= " $(AI-COMMAND) ;
+    DEPENDS $(target) : [ on $(target) return $(AI-DEPENDENCIES) ] ;
+    #DEPENDS $(target) : [ on $(target) return $(SCRIPT) ] ;
+}
+
+actions auto-index
+{
+    $(AI-COMMAND) $(FLAGS) "--prefix="$(PREFIX) "--script="$(SCRIPT) "--index-type="$(INDEX_TYPE) "--in="$(>) "--out="$(<)
+}
+
+
diff --git a/jam-files/boost-build/tools/bison.jam b/jam-files/boost-build/tools/bison.jam
new file mode 100644
index 00000000..0689d4bd
--- /dev/null
+++ b/jam-files/boost-build/tools/bison.jam
@@ -0,0 +1,32 @@
+# Copyright 2003 Vladimir Prus 
+# Distributed under the Boost Software License, Version 1.0. 
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) 
+
+import generators ;
+import feature ;
+import type ;
+import property ;
+
+feature.feature bison.prefix : : free ;
+type.register Y : y ;
+type.register YY : yy ;
+generators.register-standard bison.bison : Y : C H ;
+generators.register-standard bison.bison : YY : CPP HPP ;
+
+rule init ( )
+{
+}
+
+rule bison ( dst dst_header : src : properties * )
+{
+    local r = [ property.select bison.prefix : $(properties) ] ;
+    if $(r)
+    {
+        PREFIX_OPT on $(<) = -p $(r:G=) ;
+    }
+}
+
+actions bison 
+{
+    bison $(PREFIX_OPT) -d -o $(<[1]) $(>)
+}
diff --git a/jam-files/boost-build/tools/boostbook-config.jam b/jam-files/boost-build/tools/boostbook-config.jam
new file mode 100644
index 00000000..6e3f3ddc
--- /dev/null
+++ b/jam-files/boost-build/tools/boostbook-config.jam
@@ -0,0 +1,13 @@
+#~ Copyright 2005 Rene Rivera.
+#~ Distributed under the Boost Software License, Version 1.0.
+#~ (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+# Automatic configuration for BoostBook tools. To use, just import this module.
+#
+# This module is deprecated.
+#   using boostbook ;
+# with no arguments now suffices.
+
+import toolset : using ;
+
+using boostbook ;
diff --git a/jam-files/boost-build/tools/boostbook.jam b/jam-files/boost-build/tools/boostbook.jam
new file mode 100644
index 00000000..3a5964c6
--- /dev/null
+++ b/jam-files/boost-build/tools/boostbook.jam
@@ -0,0 +1,727 @@
+# Copyright 2003, 2004, 2005 Dave Abrahams 
+# Copyright 2003, 2004, 2005 Douglas Gregor 
+# Copyright 2005, 2006, 2007 Rene Rivera 
+# Copyright 2003, 2004, 2005 Vladimir Prus 
+# Distributed under the Boost Software License, Version 1.0. 
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) 
+
+#  This module defines rules to handle generation of documentation
+#  from BoostBook sources.
+#
+#  The type of output is controlled by the <format> feature which can
+#  have the following values::
+#
+#   * html: Generates html documention.  This is the default.
+#   * xhtml: Generates xhtml documentation
+#   * htmlhelp: Generates html help output.
+#   * onehtml: Generates a single html page.
+#   * man: Generates man pages.
+#   * pdf: Generates pdf documentation.
+#   * ps: Generates postscript output.
+#   * docbook: Generates docbook XML.
+#   * fo: Generates XSL formating objects.
+#   * tests: Extracts test cases from the boostbook XML.
+#
+#  format is an implicit feature, so typing pdf on the command
+#  line (for example) is a short-cut for format=pdf.
+
+import "class" : new ;
+import common ;
+import errors ;
+import targets ;
+import feature ;
+import generators ;
+import print ;
+import property ;
+import project ;
+import property-set ;
+import regex ;
+import scanner ;
+import sequence ;
+import make ;
+import os ;
+import type ;
+import modules path project ;
+import build-system ;
+
+import xsltproc : xslt xslt-dir ;
+
+# Make this module into a project.
+project.initialize $(__name__) ;
+project boostbook ;
+
+
+feature.feature format : html xhtml htmlhelp onehtml man pdf ps docbook fo tests
+  : incidental implicit composite propagated ;
+
+type.register DTDXML : dtdxml ;
+type.register XML : xml ;
+type.register BOOSTBOOK : boostbook : XML ;
+type.register DOCBOOK : docbook : XML ; 
+type.register FO : fo : XML ;
+type.register PDF : pdf ;
+type.register PS : ps ;
+type.register XSLT : xsl : XML ;
+type.register HTMLDIR ;
+type.register XHTMLDIR ;
+type.register HTMLHELP ;
+type.register MANPAGES ;
+type.register TESTS : tests ;
+# Artificial target type, used to require invocation of top-level
+# BoostBook generator.
+type.register BOOSTBOOK_MAIN ;
+
+
+# Initialize BoostBook support.
+rule init (
+      docbook-xsl-dir ? # The DocBook XSL stylesheet directory. If not
+                        # provided, we use DOCBOOK_XSL_DIR from the environment
+                        # (if available) or look in standard locations.
+                        # Otherwise, we let the XML processor load the
+                        # stylesheets remotely.
+            
+    : docbook-dtd-dir ? # The DocBook DTD directory. If not provided, we use
+                        # DOCBOOK_DTD_DIR From the environment (if available) or
+                        # look in standard locations.  Otherwise, we let the XML
+                        # processor load the DTD remotely.
+
+    : boostbook-dir ?   # The BoostBook directory with the DTD and XSL subdirs.
+)
+{
+
+  if ! $(.initialized) 
+  {
+    .initialized = true ;
+    
+    check-boostbook-dir $(boostbook-dir) ;
+    find-tools $(docbook-xsl-dir) : $(docbook-dtd-dir) : $(boostbook-dir) ;
+
+    # Register generators only if we've were called via "using boostbook ; "
+    generators.register-standard boostbook.dtdxml-to-boostbook : DTDXML : XML ;
+    generators.register-standard boostbook.boostbook-to-docbook : XML : DOCBOOK ;
+    generators.register-standard boostbook.boostbook-to-tests : XML : TESTS ;
+    generators.register-standard boostbook.docbook-to-onehtml : DOCBOOK : HTML ;
+    generators.register-standard boostbook.docbook-to-htmldir : DOCBOOK : HTMLDIR ;
+    generators.register-standard boostbook.docbook-to-xhtmldir : DOCBOOK : XHTMLDIR ;
+    generators.register-standard boostbook.docbook-to-htmlhelp : DOCBOOK : HTMLHELP ;
+    generators.register-standard boostbook.docbook-to-manpages : DOCBOOK : MANPAGES ;
+    generators.register-standard boostbook.docbook-to-fo : DOCBOOK : FO ;
+    
+    # The same about Jamfile main target rules.
+    IMPORT $(__name__) : boostbook : : boostbook ;
+  }
+  else
+  {
+    if $(docbook-xsl-dir) 
+    {
+      modify-config ;
+      .docbook-xsl-dir = [ path.make $(docbook-xsl-dir) ] ;
+      check-docbook-xsl-dir ;
+    }
+    if $(docbook-dtd-dir) 
+    {
+      modify-config ;
+      .docbook-dtd-dir = [ path.make $(docbook-dtd-dir) ] ;
+      check-docbook-dtd-dir ;
+    }
+    if $(boostbook-dir)
+    {
+      modify-config ;
+      check-boostbook-dir $(boostbook-dir) ;
+      local boostbook-xsl-dir = [ path.glob $(boostbook-dir) : xsl ] ;
+      local boostbook-dtd-dir = [ path.glob $(boostbook-dir) : dtd ] ;
+      .boostbook-xsl-dir = $(boostbook-xsl-dir[1]) ;
+      .boostbook-dtd-dir = $(boostbook-dtd-dir[1]) ;
+      check-boostbook-xsl-dir ;
+      check-boostbook-dtd-dir ;
+    }
+  }
+}
+
+rule lock-config ( )
+{
+  if ! $(.initialized)
+  {
+    errors.user-error "BoostBook has not been configured." ;
+  }
+  if ! $(.config-locked)
+  {
+    .config-locked = true ;
+  }
+}
+
+rule modify-config ( )
+{
+  if $(.config-locked)
+  {
+    errors.user-error "BoostBook configuration cannot be changed after it has been used." ;
+  }
+}
+
+rule find-boost-in-registry ( keys * )
+{
+  local boost-root = ;
+  for local R in $(keys) 
+  {
+    local installed-boost = [ W32_GETREG
+      "HKEY_LOCAL_MACHINE\\SOFTWARE\\$(R)"
+      : "InstallRoot" ] ;
+    if $(installed-boost)
+    {
+      boost-root += [ path.make $(installed-boost) ] ;
+    }
+  }
+  return $(boost-root) ;
+}
+
+rule check-docbook-xsl-dir ( )
+{
+  if $(.docbook-xsl-dir)
+  {
+    if ! [ path.glob $(.docbook-xsl-dir) : common/common.xsl ]
+    {
+      errors.user-error "BoostBook: could not find docbook XSL stylesheets in:" [ path.native $(.docbook-xsl-dir) ] ;
+    }
+    else
+    {
+      if --debug-configuration in [ modules.peek : ARGV ]
+      {
+        ECHO "notice: BoostBook: found docbook XSL stylesheets in:" [ path.native $(.docbook-xsl-dir) ] ;
+      }
+    }
+  }
+}
+
+rule check-docbook-dtd-dir ( )
+{
+  if $(.docbook-dtd-dir)
+  {
+    if ! [ path.glob $(.docbook-dtd-dir) : docbookx.dtd ]
+    {
+      errors.user-error "error: BoostBook: could not find docbook DTD in:" [ path.native $(.docbook-dtd-dir) ] ;
+    }
+    else
+    {
+      if --debug-configuration in [ modules.peek : ARGV ]
+      {
+        ECHO "notice: BoostBook: found docbook DTD in:" [ path.native $(.docbook-dtd-dir) ] ;
+      }
+    }
+  }
+}
+
+rule check-boostbook-xsl-dir ( )
+{
+  if ! $(.boostbook-xsl-dir)
+  {
+    errors.user-error "error: BoostBook: could not find boostbook XSL stylesheets." ;
+  }
+  else if ! [ path.glob $(.boostbook-xsl-dir) : docbook.xsl ]
+  {
+    errors.user-error "error: BoostBook: could not find docbook XSL stylesheets in:" [ path.native $(.boostbook-xsl-dir) ] ;
+  }
+  else
+  {
+    if --debug-configuration in [ modules.peek : ARGV ]
+    {
+      ECHO "notice: BoostBook: found boostbook XSL stylesheets in:" [ path.native $(.boostbook-xsl-dir) ] ;
+    }
+  }
+}
+
+rule check-boostbook-dtd-dir ( )
+{
+  if ! $(.boostbook-dtd-dir)
+  {
+    errors.user-error "error: BoostBook: could not find boostbook DTD." ;
+  }
+  else if ! [ path.glob $(.boostbook-dtd-dir) : boostbook.dtd ]
+  {
+    errors.user-error "error: BoostBook: could not find boostbook DTD in:" [ path.native $(.boostbook-dtd-dir) ] ;
+  }
+  else
+  {
+    if --debug-configuration in [ modules.peek : ARGV ]
+    {
+      ECHO "notice: BoostBook: found boostbook DTD in:" [ path.native $(.boostbook-dtd-dir) ] ;
+    }
+  }
+}
+
+rule check-boostbook-dir ( boostbook-dir ? )
+{
+  if $(boostbook-dir) && ! [ path.glob $(boostbook-dir) : xsl ]
+  {
+    errors.user-error "error: BoostBook: could not find boostbook in:" [ path.native $(boostbook-dir) ] ;
+  }
+}
+
+rule find-tools ( docbook-xsl-dir ? : docbook-dtd-dir ? : boostbook-dir ? )
+{
+  docbook-xsl-dir ?= [ modules.peek : DOCBOOK_XSL_DIR ] ;
+  docbook-dtd-dir ?= [ modules.peek : DOCBOOK_DTD_DIR ] ;
+  boostbook-dir ?= [ modules.peek : BOOSTBOOK_DIR ] ;
+
+  # Look for the boostbook stylesheets relative to BOOST_ROOT
+  # and Boost.Build.
+  local boost-build-root = [ path.make [ build-system.location ] ] ;
+  local boostbook-search-dirs = [ path.join $(boost-build-root) .. .. ] ;
+
+  local boost-root =  [ modules.peek : BOOST_ROOT ] ;
+  if $(boost-root)
+  {
+    boostbook-search-dirs += [ path.join [ path.make $(boost-root) ] tools ] ;
+  }
+  boostbook-dir ?= [ path.glob $(boostbook-search-dirs) : boostbook* ] ; 
+
+  # Try to find the tools in platform specific locations
+  if [ os.name ] = NT
+  {
+    # If installed by the Boost installer.
+    local boost-root = ;
+
+    local boost-installer-versions = snapshot cvs 1.33.0 ;
+    local boost-consulting-installer-versions = 1.33.1 1.34.0 1.34.1 ;
+    local boostpro-installer-versions =
+        1.35.0 1.36.0 1.37.0 1.38.0 1.39.0 1.40.0 1.41.0 1.42.0
+        1.43.0 1.44.0 1.45.0 1.46.0 1.47.0 1.48.0 1.49.0 1.50.0 ;
+
+    local old-installer-root = [ find-boost-in-registry Boost.org\\$(boost-installer-versions) ] ;
+
+    # Make sure that the most recent version is searched for first
+    boost-root += [ sequence.reverse
+      [ find-boost-in-registry
+        Boost-Consulting.com\\$(boost-consulting-installer-versions)
+        boostpro.com\\$(boostpro-installer-versions) ] ] ;
+
+    # Plausible locations.
+    local root = [ PWD ] ;
+    while $(root) != $(root:D) { root = $(root:D) ; }
+    root = [ path.make $(root) ] ;
+    local search-dirs = ;
+    local docbook-search-dirs = ;
+    for local p in $(boost-root) {
+      search-dirs += [ path.join $(p) tools ] ;
+    }
+    for local p in $(old-installer-root)
+    {
+      search-dirs += [ path.join $(p) share ] ;
+      docbook-search-dirs += [ path.join $(p) share ] ;
+    }
+    search-dirs += [ path.join $(root) Boost tools ] ;
+    search-dirs += [ path.join $(root) Boost share ] ;
+    docbook-search-dirs += [ path.join $(root) Boost share ] ;
+
+    docbook-xsl-dir ?= [ path.glob $(docbook-search-dirs) : docbook-xsl* ] ;
+    docbook-dtd-dir ?= [ path.glob $(docbook-search-dirs) : docbook-xml* ] ;
+    boostbook-dir ?= [ path.glob $(search-dirs) : boostbook* ] ;
+  }
+  else
+  {
+    # Plausible locations.
+
+    local share = /usr/local/share /usr/share /opt/share /opt/local/share ;
+    local dtd-versions = 4.2 ;
+
+    docbook-xsl-dir ?= [ path.glob $(share) : docbook-xsl* ] ;
+    docbook-xsl-dir ?= [ path.glob $(share)/sgml/docbook : xsl-stylesheets ] ;
+    docbook-xsl-dir ?= [ path.glob $(share)/xsl : docbook* ] ;
+
+    docbook-dtd-dir ?= [ path.glob $(share) : docbook-xml* ] ;
+    docbook-dtd-dir ?= [ path.glob $(share)/sgml/docbook : xml-dtd-$(dtd-versions)* ] ;
+    docbook-dtd-dir ?= [ path.glob $(share)/xml/docbook : $(dtd-versions) ] ;
+
+    boostbook-dir ?= [ path.glob $(share) : boostbook* ] ;
+
+    # Ubuntu Linux
+    docbook-xsl-dir ?= [ path.glob /usr/share/xml/docbook/stylesheet : nwalsh ] ;
+    docbook-dtd-dir ?= [ path.glob /usr/share/xml/docbook/schema/dtd : $(dtd-versions) ] ;
+  }
+
+  if $(docbook-xsl-dir) 
+  {
+    .docbook-xsl-dir = [ path.make $(docbook-xsl-dir[1]) ] ;
+  }
+  if $(docbook-dtd-dir) 
+  {
+    .docbook-dtd-dir = [ path.make $(docbook-dtd-dir[1]) ] ;
+  }
+
+  if --debug-configuration in [ modules.peek : ARGV ] 
+  {
+    ECHO "notice: Boost.Book: searching XSL/DTD in" ;
+    ECHO "notice:" [ sequence.transform path.native : $(boostbook-dir) ] ;
+  }    
+  local boostbook-xsl-dir ;
+  for local dir in $(boostbook-dir) {
+    boostbook-xsl-dir += [ path.glob $(dir) : xsl ] ;
+  }
+  local boostbook-dtd-dir ; 
+  for local dir in $(boostbook-dir) {
+    boostbook-dtd-dir += [ path.glob $(dir) : dtd ] ;
+  }
+  .boostbook-xsl-dir = $(boostbook-xsl-dir[1]) ;
+  .boostbook-dtd-dir = $(boostbook-dtd-dir[1]) ;
+
+  check-docbook-xsl-dir ;
+  check-docbook-dtd-dir ;
+  check-boostbook-xsl-dir ;
+  check-boostbook-dtd-dir ; 
+}
+
+rule xsl-dir
+{
+  lock-config ;
+  return $(.boostbook-xsl-dir) ;
+}
+
+rule dtd-dir
+{
+  lock-config ;
+  return $(.boostbook-dtd-dir) ;
+}
+
+rule docbook-xsl-dir
+{
+  lock-config ;
+  return $(.docbook-xsl-dir) ;
+}
+
+rule docbook-dtd-dir
+{
+  lock-config ;
+  return $(.docbook-dtd-dir) ;
+}
+
+rule dtdxml-to-boostbook ( target : source : properties * )
+{
+  lock-config ;
+  xslt $(target) : $(source) "$(.boostbook-xsl-dir)/dtd/dtd2boostbook.xsl" 
+                 : $(properties) ;
+}
+
+rule boostbook-to-docbook ( target : source : properties * )
+{
+  lock-config ;
+  local stylesheet = [ path.native $(.boostbook-xsl-dir)/docbook.xsl ] ;
+  xslt $(target) : $(source) $(stylesheet) : $(properties) ;
+}
+
+rule docbook-to-onehtml ( target : source : properties * )
+{
+  lock-config ;
+  local stylesheet = [ path.native $(.boostbook-xsl-dir)/html-single.xsl ] ;
+  xslt $(target) : $(source) $(stylesheet) : $(properties) ;
+}
+
+rule docbook-to-htmldir ( target : source : properties * )
+{
+  lock-config ;
+  local stylesheet = [ path.native $(.boostbook-xsl-dir)/html.xsl ] ;
+  xslt-dir $(target) : $(source) $(stylesheet) : $(properties) : html ;
+}
+
+rule docbook-to-xhtmldir ( target : source : properties * )
+{
+  lock-config ;
+  local stylesheet = [ path.native $(.boostbook-xsl-dir)/xhtml.xsl ] ;
+  xslt-dir $(target) : $(source) $(stylesheet) : $(properties) : xhtml ;
+}
+
+rule docbook-to-htmlhelp ( target : source : properties * )
+{
+  lock-config ;
+  local stylesheet = [ path.native $(.boostbook-xsl-dir)/html-help.xsl ] ;
+  xslt-dir $(target) : $(source) $(stylesheet) : $(properties) : htmlhelp ;
+}
+
+rule docbook-to-manpages ( target : source : properties * )
+{
+  lock-config ;
+  local stylesheet = [ path.native $(.boostbook-xsl-dir)/manpages.xsl ] ;
+  xslt-dir $(target) : $(source) $(stylesheet) : $(properties) : man ;
+}
+
+rule docbook-to-fo ( target : source : properties * )
+{
+  lock-config ;
+  local stylesheet = [ path.native $(.boostbook-xsl-dir)/fo.xsl ] ;
+  xslt $(target) : $(source) $(stylesheet) : $(properties) ;
+}
+
+rule format-catalog-path ( path )
+{
+    local result = $(path) ;
+    if [ xsltproc.is-cygwin ]
+    {
+        if [ os.name ] = NT
+        {
+            drive = [ MATCH ^/(.):(.*)$ : $(path) ] ;
+            result = /cygdrive/$(drive[1])$(drive[2]) ;
+        }
+    }
+    else
+    {
+        if [ os.name ] = CYGWIN
+        {
+            local native-path = [ path.native $(path) ] ;
+            result = [ path.make $(native-path:W) ] ;
+        }
+    }
+    return [ regex.replace $(result) " " "%20" ] ;
+}
+
+rule generate-xml-catalog ( target : sources * : properties * )
+{
+  print.output $(target) ;
+
+  # BoostBook DTD catalog entry
+  local boostbook-dtd-dir = [ boostbook.dtd-dir ] ;
+  if $(boostbook-dtd-dir)
+  {      
+    boostbook-dtd-dir = [ format-catalog-path $(boostbook-dtd-dir) ] ;
+  }
+    
+  print.text
+    "<?xml version=\"1.0\"?>"
+    "<!DOCTYPE catalog "
+    "  PUBLIC \"-//OASIS/DTD Entity Resolution XML Catalog V1.0//EN\""
+    "  \"http://www.oasis-open.org/committees/entity/release/1.0/catalog.dtd\">"
+    "<catalog xmlns=\"urn:oasis:names:tc:entity:xmlns:xml:catalog\">"
+    "  <rewriteURI uriStartString=\"http://www.boost.org/tools/boostbook/dtd/\" rewritePrefix=\"file://$(boostbook-dtd-dir)/\"/>"
+    : true ;
+
+  local docbook-xsl-dir = [ boostbook.docbook-xsl-dir ] ;    
+  if ! $(docbook-xsl-dir) 
+  {
+    ECHO "BoostBook warning: no DocBook XSL directory specified." ;
+    ECHO "  If you have the DocBook XSL stylesheets installed, please " ;
+    ECHO "  set DOCBOOK_XSL_DIR to the stylesheet directory on either " ;
+    ECHO "  the command line (via -sDOCBOOK_XSL_DIR=...) or in a " ;
+    ECHO "  Boost.Jam configuration file. The DocBook XSL stylesheets " ;
+    ECHO "  are available here: http://docbook.sourceforge.net/ " ;
+    ECHO "  Stylesheets will be downloaded on-the-fly (very slow!) " ;
+  }
+  else 
+  {
+    docbook-xsl-dir = [ format-catalog-path $(docbook-xsl-dir) ] ;      
+    print.text "  <rewriteURI uriStartString=\"http://docbook.sourceforge.net/release/xsl/current/\" rewritePrefix=\"file://$(docbook-xsl-dir)/\"/>" ;
+  }
+
+  local docbook-dtd-dir = [ boostbook.docbook-dtd-dir ] ;  
+  if ! $(docbook-dtd-dir)
+  {
+    ECHO "BoostBook warning: no DocBook DTD directory specified." ;
+    ECHO "  If you have the DocBook DTD installed, please set " ;
+    ECHO "  DOCBOOK_DTD_DIR to the DTD directory on either " ;
+    ECHO "  the command line (via -sDOCBOOK_DTD_DIR=...) or in a " ;
+    ECHO "  Boost.Jam configuration file. The DocBook DTD is available " ;
+    ECHO "  here: http://www.oasis-open.org/docbook/xml/4.2/index.shtml" ;
+    ECHO "  The DTD will be downloaded on-the-fly (very slow!) " ;
+  }
+  else 
+  {
+    docbook-dtd-dir = [ format-catalog-path $(docbook-dtd-dir) ] ;      
+    print.text "  <rewriteURI uriStartString=\"http://www.oasis-open.org/docbook/xml/4.2/\" rewritePrefix=\"file://$(docbook-dtd-dir)/\"/>" ;
+  }
+
+  print.text "</catalog>" ;
+}
+
+rule xml-catalog ( )
+{
+    if ! $(.xml-catalog)
+    {
+        # The target is created as part of the root project. But ideally
+        # it would be created as part of the boostbook project. This is not
+        # current possible as such global projects don't inherit things like
+        # the build directory.
+        
+        # Find the root project.
+        local root-project = [ project.current ] ;
+        root-project = [ $(root-project).project-module ] ;
+        while
+            [ project.attribute $(root-project) parent-module ] &&
+            [ project.attribute $(root-project) parent-module ] != user-config &&
+            [ project.attribute $(root-project) parent-module ] != project-config
+        {
+            root-project = [ project.attribute $(root-project) parent-module ] ;
+        }
+        .xml-catalog = [ new file-target boostbook_catalog
+            : XML
+            : [ project.target $(root-project) ]
+            : [ new action : boostbook.generate-xml-catalog ]
+            :
+            ] ;
+        .xml-catalog-file = [ $(.xml-catalog).path ] [ $(.xml-catalog).name ] ;
+        .xml-catalog-file = $(.xml-catalog-file:J=/) ;
+    }
+    return $(.xml-catalog) $(.xml-catalog-file) ;
+}
+
+class boostbook-generator : generator
+{
+    import feature ;
+    import virtual-target ;
+    import generators ;
+    import boostbook ;
+      
+    
+    rule __init__ ( * : * )
+    {
+        generator.__init__ $(1) : $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ;
+    }
+    
+    rule run ( project name ? : property-set : sources * )
+    {
+        # Generate the catalog, but only once...
+        local global-catalog = [ boostbook.xml-catalog ] ;
+        local catalog = $(global-catalog[1]) ;
+        local catalog-file = $(global-catalog[2]) ;
+        local targets ;
+       
+        # Add the catalog to the property set
+        property-set = [ $(property-set).add-raw <catalog>$(catalog-file) ] ;
+
+        local type = none ;
+        local manifest ; 
+        local format = [ $(property-set).get <format> ] ;
+        switch $(format) 
+        {
+            case html    : 
+            {
+                type = HTMLDIR ;
+                manifest = HTML.manifest ;
+            }
+            case xhtml    : 
+            {
+                type = XHTMLDIR ;
+                manifest = HTML.manifest ;
+            }
+            case htmlhelp    : 
+            {
+                type = HTMLHELP ;
+                manifest = HTML.manifest ;
+            }
+            
+            case onehtml : type = HTML ;
+            
+            case man : 
+            {
+                type = MANPAGES ;
+                manifest = man.manifest ;
+            }
+            
+            case docbook : type = DOCBOOK ;
+            case fo      : type = FO ;
+            case pdf     : type = PDF ;
+            case ps      : type = PS ;
+            case tests   : type = TESTS ;
+        }
+        
+        if $(manifest)
+        {
+            # Create DOCBOOK file from BOOSTBOOK sources.
+            local base-target = [ generators.construct $(project) 
+              : DOCBOOK : $(property-set) : $(sources) ] ;
+            base-target = $(base-target[2]) ;
+            $(base-target).depends $(catalog) ;
+            
+            # Generate HTML/PDF/PS from DOCBOOK.
+            local target = [ generators.construct $(project) $(name)_$(manifest)
+                : $(type)
+                : [ $(property-set).add-raw
+                    <xsl:param>manifest=$(name)_$(manifest) ]
+                : $(base-target) ] ;
+            local name = [ $(property-set).get <name> ] ;
+            name ?= $(format) ;
+            $(target[2]).set-path $(name) ;
+            $(target[2]).depends $(catalog) ;            
+
+            targets += $(target[2]) ;
+        }
+        else {
+            local target = [ generators.construct $(project)
+              : $(type) : $(property-set) : $(sources) ] ;
+            
+            if ! $(target)
+            {
+                errors.error "Cannot build documentation type '$(format)'" ;
+            }
+            else 
+            {
+                $(target[2]).depends $(catalog) ;
+                targets += $(target[2]) ;
+            }
+        }
+        
+        return $(targets) ;
+    }
+}
+
+generators.register [ new boostbook-generator boostbook.main : : BOOSTBOOK_MAIN ] ;
+
+# Creates a boostbook target.
+rule boostbook ( target-name : sources * : requirements * : default-build * )
+{ 
+  local project = [ project.current ] ;
+    
+  targets.main-target-alternative 
+    [ new typed-target $(target-name) : $(project) : BOOSTBOOK_MAIN
+        : [ targets.main-target-sources $(sources) : $(target-name) ] 
+        : [ targets.main-target-requirements $(requirements) : $(project) ]
+        : [ targets.main-target-default-build $(default-build) : $(project) ] 
+    ] ;
+}
+
+#############################################################################
+# Dependency scanners
+#############################################################################
+# XInclude scanner. Mostly stolen from c-scanner :)
+# Note that this assumes an "xi" prefix for XIncludes. This isn't always the
+# case for XML documents, but we'll assume it's true for anything we encounter.
+class xinclude-scanner : scanner 
+{
+    import virtual-target ;
+    import path ;
+    import scanner ;
+        
+    rule __init__ ( includes * )
+    {
+        scanner.__init__ ;
+        self.includes = $(includes) ;
+    }
+    
+  rule pattern ( )
+  {
+    return "xi:include[ ]*href=\"([^\"]*)\"" ;
+  }
+
+  rule process ( target : matches * : binding )
+  {
+    local target_path = [ NORMALIZE_PATH $(binding:D) ] ;
+
+    NOCARE $(matches) ;
+    INCLUDES $(target) : $(matches) ;
+    SEARCH on $(matches) = $(target_path) $(self.includes:G=) ;
+    
+    scanner.propagate $(__name__) : $(matches) : $(target) ;     
+  }
+}
+
+scanner.register xinclude-scanner : xsl:path ;
+type.set-scanner XML : xinclude-scanner ;
+
+rule boostbook-to-tests ( target : source : properties * )
+{
+  lock-config ;
+  local boost_root = [ modules.peek : BOOST_ROOT ] ;
+  local native-path =
+    [ path.native [ path.join $(.boostbook-xsl-dir) testing Jamfile ] ] ;
+  local stylesheet = $(native-path:S=.xsl) ;
+  xslt $(target) : $(source) $(stylesheet) 
+                 : $(properties) <xsl:param>boost.root=$(boost_root) 
+                 ;
+}
+
+
diff --git a/jam-files/boost-build/tools/borland.jam b/jam-files/boost-build/tools/borland.jam
new file mode 100644
index 00000000..6e43ca93
--- /dev/null
+++ b/jam-files/boost-build/tools/borland.jam
@@ -0,0 +1,220 @@
+# Copyright 2005 Dave Abrahams 
+# Copyright 2003 Rene Rivera 
+# Copyright 2003, 2004, 2005 Vladimir Prus 
+# Distributed under the Boost Software License, Version 1.0. 
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) 
+
+#  Support for the Borland's command line compiler
+
+import property ;
+import generators ;
+import os ;
+import toolset : flags ;
+import feature : get-values ;
+import type ;
+import common ;
+
+feature.extend toolset : borland ;
+
+rule init ( version ? : command * : options * )
+{
+    local condition = [ common.check-init-parameters borland :
+        version $(version) ] ;
+    
+    local command = [ common.get-invocation-command borland : bcc32.exe 
+        : $(command) ] ;
+     
+    common.handle-options borland : $(condition) : $(command) : $(options) ;    
+    
+    if $(command)
+    {
+        command = [ common.get-absolute-tool-path $(command[-1]) ] ;
+    }   
+    root = $(command:D) ;    
+    
+    flags borland.compile STDHDRS $(condition) : $(root)/include/ ;
+    flags borland.link STDLIBPATH $(condition) : $(root)/lib ;
+    flags borland.link RUN_PATH $(condition) : $(root)/bin ;
+    flags borland .root $(condition) : $(root)/bin/ ;    
+}
+
+
+# A borland-specific target type
+type.register BORLAND.TDS : tds ;
+
+# Declare generators
+
+generators.register-linker borland.link : OBJ SEARCHED_LIB STATIC_LIB IMPORT_LIB : EXE : <toolset>borland ;
+generators.register-linker borland.link.dll : OBJ SEARCHED_LIB STATIC_LIB IMPORT_LIB : SHARED_LIB IMPORT_LIB : <toolset>borland ;
+
+generators.register-archiver borland.archive : OBJ : STATIC_LIB : <toolset>borland ;
+generators.register-c-compiler borland.compile.c++ : CPP : OBJ : <toolset>borland ;
+generators.register-c-compiler borland.compile.c : C : OBJ : <toolset>borland ;
+generators.register-standard borland.asm : ASM : OBJ : <toolset>borland ;
+
+# Declare flags 
+
+flags borland.compile OPTIONS <debug-symbols>on : -v ;
+flags borland.link OPTIONS <debug-symbols>on : -v ;
+
+flags borland.compile OPTIONS <optimization>off : -Od ;
+flags borland.compile OPTIONS <optimization>speed : -O2 ;
+flags borland.compile OPTIONS <optimization>space : -O1 ;
+
+if $(.BORLAND_HAS_FIXED_INLINING_BUGS)
+{
+    flags borland CFLAGS <inlining>off : -vi- ;
+    flags borland CFLAGS <inlining>on : -vi -w-inl ;
+    flags borland CFLAGS <inlining>full : -vi -w-inl ;
+}
+else
+{
+    flags borland CFLAGS : -vi- ;
+}
+
+flags borland.compile OPTIONS <warnings>off : -w- ;
+flags borland.compile OPTIONS <warnings>all : -w ;
+flags borland.compile OPTIONS <warnings-as-errors>on : -w! ;
+
+
+# Deal with various runtime configs...
+
+# This should be not for DLL
+flags borland OPTIONS <user-interface>console : -tWC ;
+
+# -tWR sets -tW as well, so we turn it off here and then turn it 
+# on again later if we need it:
+flags borland OPTIONS <runtime-link>shared : -tWR -tWC ;
+flags borland OPTIONS <user-interface>gui : -tW ;
+
+flags borland OPTIONS <main-target-type>LIB/<link>shared : -tWD ;
+# Hmm.. not sure what's going on here.
+flags borland OPTIONS : -WM- ;
+flags borland OPTIONS <threading>multi : -tWM ;
+
+
+
+flags borland.compile OPTIONS <cxxflags> ;
+flags borland.compile DEFINES <define> ;
+flags borland.compile INCLUDES <include> ;
+
+flags borland NEED_IMPLIB <main-target-type>LIB/<link>shared : "" ;
+
+#
+# for C++ compiles the following options are turned on by default:
+#
+# -j5    stops after 5 errors
+# -g255  allow an unlimited number of warnings
+# -q     no banner
+# -c     compile to object
+# -P     C++ code regardless of file extention
+# -a8    8 byte alignment, this option is on in the IDE by default 
+#        and effects binary compatibility.
+#
+
+# -U$(UNDEFS) -D$(DEFINES) $(CFLAGS) $(C++FLAGS) -I"$(HDRS)"  -I"$(STDHDRS)" -o"$(<)" "$(>)"
+
+
+actions compile.c++
+{
+    "$(CONFIG_COMMAND)" -j5 -g255 -q -c -P -a8 -Vx- -Ve- -b- $(OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -I"$(STDHDRS)" -o"$(<)" "$(>)"
+}
+
+# For C, we don't pass -P flag
+actions compile.c
+{
+    "$(CONFIG_COMMAND)" -j5 -g255 -q -c -a8 -Vx- -Ve- -b- $(OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -I"$(STDHDRS)" -o"$(<)" "$(>)"
+}
+
+
+# Declare flags and action for linking
+toolset.flags borland.link OPTIONS <debug-symbols>on : -v ;
+toolset.flags borland.link LIBRARY_PATH <library-path> ;
+toolset.flags borland.link FINDLIBS_ST <find-static-library> ;
+toolset.flags borland.link FINDLIBS_SA <find-shared-library> ;
+toolset.flags borland.link LIBRARIES <library-file> ;
+
+flags borland.link OPTIONS <linkflags> ;
+flags borland.link OPTIONS <link>shared : -tWD ;
+
+flags borland.link LIBRARY_PATH_OPTION <toolset>borland : -L : unchecked ;
+flags borland.link LIBRARY_OPTION <toolset>borland : "" : unchecked ;
+
+
+
+# bcc32 needs to have ilink32 in the path in order to invoke it, so explicitly
+# specifying $(BCC_TOOL_PATH)bcc32 doesn't help. You need to add
+# $(BCC_TOOL_PATH) to the path
+# The NEED_IMPLIB variable controls whether we need to invoke implib.
+
+flags borland.archive AROPTIONS <archiveflags> ;
+
+# Declare action for archives. We don't use response file
+# since it's hard to get "+-" there.
+# The /P256 increases 'page' size -- with too low
+# values tlib fails when building large applications.
+# CONSIDER: don't know what 'together' is for...
+actions updated together piecemeal archive
+{ 
+    $(.set-path)$(.root:W)$(.old-path)
+    tlib $(AROPTIONS) /P256 /u /a /C "$(<:W)" +-"$(>:W)"
+}
+
+
+if [ os.name ] = CYGWIN
+{
+    .set-path = "cmd /S /C set \"PATH=" ;
+    .old-path = ";%PATH%\" \"&&\"" ;
+    
+
+    # Couldn't get TLIB to stop being confused about pathnames
+    # containing dashes (it seemed to treat them as option separators
+    # when passed through from bash), so we explicitly write the
+    # command into a .bat file and execute that.  TLIB is also finicky
+    # about pathname style! Forward slashes, too, are treated as
+    # options.
+    actions updated together piecemeal archive
+    { 
+       chdir $(<:D)
+       echo +-$(>:BS) > $(<:BS).rsp
+       $(.set-path)$(.root)$(.old-path) "tlib.exe" $(AROPTIONS) /P256 /C $(<:BS) @$(<:BS).rsp && $(RM) $(<:BS).rsp
+    }    
+}
+else if [ os.name ] = NT
+{
+    .set-path = "set \"PATH=" ;
+    .old-path = ";%PATH%\"
+      " ;
+}
+else
+{
+    .set-path = "PATH=\"" ;
+    .old-path = "\":$PATH
+      export PATH
+      " ;
+}
+
+RM = [ common.rm-command ] ;
+
+nl = "
+" ;
+
+actions link
+{
+    $(.set-path)$(.root:W)$(.old-path) "$(CONFIG_COMMAND)" -v -q $(OPTIONS) -L"$(LIBRARY_PATH:W)" -L"$(STDLIBPATH:W)" -e"$(<[1]:W)" @"@($(<[1]:W).rsp:E=$(nl)"$(>)" $(nl)$(LIBRARIES) $(nl)"$(LIBRARY_OPTION)$(FINDLIBS_ST:S=.lib)" $(nl)"$(LIBRARY_OPTION)$(FINDLIBS_SA:S=.lib)")"
+}
+
+
+actions link.dll bind LIBRARIES RSP
+{
+    $(.set-path)$(.root:W)$(.old-path) "$(CONFIG_COMMAND)" -v -q $(OPTIONS) -L"$(LIBRARY_PATH:W)" -L"$(STDLIBPATH:W)" -e"$(<[1]:W)" @"@($(<[1]:W).rsp:E=$(nl)"$(>)" $(nl)$(LIBRARIES) $(nl)"$(LIBRARY_OPTION)$(FINDLIBS_ST:S=.lib)" $(nl)"$(LIBRARY_OPTION)$(FINDLIBS_SA:S=.lib)")"  && "$(.root)implib" "$(<[2]:W)" "$(<[1]:W)"
+}
+
+# It seems impossible to specify output file with directory when compiling
+# asm files using bcc32, so use tasm32 directly.
+# /ml makes all symbol names case-sensitive
+actions asm
+{
+    $(.set-path)$(.root:W)$(.old-path) tasm32.exe /ml "$(>)" "$(<)"
+}
+
diff --git a/jam-files/boost-build/tools/builtin.jam b/jam-files/boost-build/tools/builtin.jam
new file mode 100644
index 00000000..148e7308
--- /dev/null
+++ b/jam-files/boost-build/tools/builtin.jam
@@ -0,0 +1,960 @@
+# Copyright 2002, 2003, 2004, 2005 Dave Abrahams
+# Copyright 2002, 2005, 2006, 2007, 2010 Rene Rivera
+# Copyright 2006 Juergen Hunold
+# Copyright 2005 Toon Knapen
+# Copyright 2002, 2003, 2004, 2005, 2006 Vladimir Prus
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+# Defines standard features and rules.
+
+import alias ;
+import "class" : new ;
+import errors ;
+import feature ;
+import generators ;
+import numbers ;
+import os ;
+import path ;
+import print ;
+import project ;
+import property ;
+import regex ;
+import scanner ;
+import sequence ;
+import stage ;
+import symlink ;
+import toolset ;
+import type ;
+import targets ;
+import types/register ;
+import utility ;
+import virtual-target ;
+import message ;
+import convert ;
+
+# FIXME: the following generate module import is not needed here but removing it
+# too hastly will break using code (e.g. the main Boost library Jamroot file)
+# that forgot to import the generate module before calling the generate rule.
+import generate ;
+
+
+.os-names = aix bsd cygwin darwin freebsd hpux iphone linux netbsd
+    openbsd osf qnx qnxnto sgi solaris unix unixware windows 
+    elf # Not actually an OS -- used for targeting bare metal where
+        # object format is ELF.  This catches both -elf and -eabi gcc
+        # targets and well as other compilers targeting ELF. It is not
+        # clear how often do we need to key of ELF specifically as opposed
+        # to other bare metal targets, but let's stick with gcc naming.
+    ;
+
+# Feature used to determine which OS we're on. New <target-os> and <host-os>
+# features should be used instead.
+local os = [ modules.peek : OS ] ;
+feature.feature os : $(os) : propagated link-incompatible ;
+
+
+# Translates from bjam current OS to the os tags used in host-os and target-os,
+# i.e. returns the running host-os.
+#
+local rule default-host-os ( )
+{
+    local host-os ;
+    if [ os.name ] in $(.os-names:U)
+    {
+        host-os = [ os.name ] ;
+    }
+    else
+    {
+        switch [ os.name ]
+        {
+            case NT           : host-os = windows ;
+            case AS400        : host-os = unix    ;
+            case MINGW        : host-os = windows ;
+            case BSDI         : host-os = bsd     ;
+            case COHERENT     : host-os = unix    ;
+            case DRAGONFLYBSD : host-os = bsd     ;
+            case IRIX         : host-os = sgi     ;
+            case MACOSX       : host-os = darwin  ;
+            case KFREEBSD     : host-os = freebsd ;
+            case LINUX        : host-os = linux   ;
+            case SUNOS        : 
+              ECHO "SunOS is not a supported operating system." ;
+              ECHO "We believe last version of SunOS was released in 1992, " ;
+              ECHO "so if you get this message, something is very wrong with configuration logic. " ;
+              ECHO "Please report this as a bug. " ;
+              EXIT ;
+            case *            : host-os = unix    ;
+        }
+    }
+    return $(host-os:L) ;
+}
+
+
+# The two OS features define a known set of abstract OS names. The host-os is
+# the OS under which bjam is running. Even though this should really be a fixed
+# property we need to list all the values to prevent unknown value errors. Both
+# set the default value to the current OS to account for the default use case of
+# building on the target OS.
+feature.feature host-os : $(.os-names) ;
+feature.set-default host-os : [ default-host-os ] ;
+
+feature.feature target-os : $(.os-names) : propagated link-incompatible ;
+feature.set-default target-os : [ default-host-os ] ;
+
+
+feature.feature toolset            :                 : implicit propagated symmetric ;
+feature.feature stdlib             : native          : propagated composite ;
+feature.feature link               : shared static   : propagated ;
+feature.feature runtime-link       : shared static   : propagated ;
+feature.feature runtime-debugging  : on off          : propagated ;
+feature.feature optimization       : off speed space none : propagated ;
+feature.feature profiling          : off on          : propagated ;
+feature.feature inlining           : off on full     : propagated ;
+feature.feature threading          : single multi    : propagated ;
+feature.feature rtti               : on off          : propagated ;
+feature.feature exception-handling : on off          : propagated ;
+
+# Whether there is support for asynchronous EH (e.g. catching SEGVs).
+feature.feature asynch-exceptions  : off on          : propagated ;
+
+# Whether all extern "C" functions are considered nothrow by default.
+feature.feature extern-c-nothrow   : off on          : propagated ;
+
+feature.feature debug-symbols      : on off none          : propagated ;
+# Controls whether the binary should be stripped -- that is have
+# everything not necessary to running removed. This option should
+# not be very often needed. Also, this feature will show up in
+# target paths of everything, not just binaries. Should fix that
+# when impelementing feature relevance.
+feature.feature strip              : off on          : propagated ;
+feature.feature define             :                 : free ;
+feature.feature undef              :                 : free ;
+feature.feature "include"          :                 : free path ; #order-sensitive ;
+feature.feature cflags             :                 : free ;
+feature.feature cxxflags           :                 : free ;
+feature.feature fflags             :                 : free ;
+feature.feature asmflags           :                 : free ;
+feature.feature linkflags          :                 : free ;
+feature.feature archiveflags       :                 : free ;
+feature.feature version            :                 : free ;
+
+# Generic, i.e. non-language specific, flags for tools.
+feature.feature flags           : : free ;
+feature.feature location-prefix : : free ;
+
+
+# The following features are incidental since they have no effect on built
+# products. Not making them incidental will result in problems in corner cases,
+# e.g.:
+#
+#    unit-test a : a.cpp : <use>b ;
+#    lib b : a.cpp b ;
+#
+# Here, if <use> is not incidental, we would decide we have two targets for
+# a.obj with different properties and complain about it.
+#
+# Note that making a feature incidental does not mean it is ignored. It may be
+# ignored when creating a virtual target, but the rest of build process will use
+# them.
+feature.feature use                 : : free dependency incidental ;
+feature.feature dependency          : : free dependency incidental ;
+feature.feature implicit-dependency : : free dependency incidental ;
+
+feature.feature warnings :
+    on         # Enable default/"reasonable" warning level for the tool.
+    all        # Enable all possible warnings issued by the tool.
+    off        # Disable all warnings issued by the tool.
+  : incidental propagated ;
+
+feature.feature warnings-as-errors :
+    off        # Do not fail the compilation if there are warnings.
+    on         # Fail the compilation if there are warnings.
+  : incidental propagated ;
+
+# Feature that allows us to configure the maximal template instantiation depth
+# level allowed by a C++ compiler. Applies only to C++ toolsets whose compilers
+# actually support this configuration setting.
+#
+# Note that Boost Build currently does not allow defining features that take any
+# positive integral value as a parameter, which is what we need here, so we just
+# define some of the values here and leave it up to the user to extend this set
+# as he needs using the feature.extend rule.
+#
+# TODO: This should be upgraded as soon as Boost Build adds support for custom
+# validated feature values or at least features allowing any positive integral
+# value. See related Boost Build related trac ticket #194.
+#
+feature.feature c++-template-depth
+    :
+        [ numbers.range 64 1024 : 64 ]
+        [ numbers.range 20 1000 : 10 ]
+        #   Maximum template instantiation depth guaranteed for ANSI/ISO C++
+        # conforming programs.
+        17
+    :
+        incidental optional propagated ;
+
+feature.feature source              :            : free dependency incidental ;
+feature.feature library             :            : free dependency incidental ;
+feature.feature file                :            : free dependency incidental ;
+feature.feature find-shared-library :            : free ; #order-sensitive ;
+feature.feature find-static-library :            : free ; #order-sensitive ;
+feature.feature library-path        :            : free path ; #order-sensitive ;
+
+# Internal feature.
+feature.feature library-file        :            : free dependency ;
+
+feature.feature name                :            : free ;
+feature.feature tag                 :            : free ;
+feature.feature search              :            : free path ; #order-sensitive ;
+feature.feature location            :            : free path ;
+feature.feature dll-path            :            : free path ;
+feature.feature hardcode-dll-paths  : true false : incidental ;
+
+
+# An internal feature that holds the paths of all dependency shared libraries.
+# On Windows, it is needed so that we can add all those paths to PATH when
+# running applications. On Linux, it is needed to add proper -rpath-link command
+# line options.
+feature.feature xdll-path : : free path ;
+
+# Provides means to specify def-file for windows DLLs.
+feature.feature def-file : : free dependency ;
+
+feature.feature suppress-import-lib : false true : incidental ;
+
+# Internal feature used to store the name of a bjam action to call when building
+# a target.
+feature.feature action : : free ;
+
+# This feature is used to allow specific generators to run. For example, QT
+# tools can only be invoked when QT library is used. In that case, <allow>qt
+# will be in usage requirement of the library.
+feature.feature allow : : free ;
+
+# The addressing model to generate code for. Currently a limited set only
+# specifying the bit size of pointers.
+feature.feature address-model : 16 32 64 32_64 : propagated optional ;
+
+# Type of CPU architecture to compile for.
+feature.feature architecture :
+    # x86 and x86-64
+    x86
+
+    # ia64
+    ia64
+
+    # Sparc
+    sparc
+
+    # RS/6000 & PowerPC
+    power
+
+    # MIPS/SGI
+    mips1 mips2 mips3 mips4 mips32 mips32r2 mips64
+
+    # HP/PA-RISC
+    parisc
+
+    # Advanced RISC Machines
+    arm
+
+    # Combined architectures for platforms/toolsets that support building for
+    # multiple architectures at once. "combined" would be the default multi-arch
+    # for the toolset.
+    combined
+    combined-x86-power
+
+    : propagated optional ;
+
+# The specific instruction set in an architecture to compile.
+feature.feature instruction-set :
+    # x86 and x86-64
+    native i386 i486 i586 i686 pentium pentium-mmx pentiumpro pentium2 pentium3
+    pentium3m pentium-m pentium4 pentium4m prescott nocona core2 conroe conroe-xe
+    conroe-l allendale mermon mermon-xe kentsfield kentsfield-xe penryn wolfdale
+    yorksfield nehalem k6 k6-2 k6-3 athlon athlon-tbird athlon-4 athlon-xp
+    athlon-mp k8 opteron athlon64 athlon-fx winchip-c6 winchip2 c3 c3-2
+
+    # ia64
+    itanium itanium1 merced itanium2 mckinley
+
+    # Sparc
+    v7 cypress v8 supersparc sparclite hypersparc sparclite86x f930 f934
+    sparclet tsc701 v9 ultrasparc ultrasparc3
+
+    # RS/6000 & PowerPC
+    401 403 405 405fp 440 440fp 505 601 602 603 603e 604 604e 620 630 740 7400
+    7450 750 801 821 823 860 970 8540 power-common ec603e g3 g4 g5 power power2
+    power3 power4 power5 powerpc powerpc64 rios rios1 rsc rios2 rs64a
+
+    # MIPS
+    4kc 4kp 5kc 20kc m4k r2000 r3000 r3900 r4000 r4100 r4300 r4400 r4600 r4650
+    r6000 r8000 rm7000 rm9000 orion sb1 vr4100 vr4111 vr4120 vr4130 vr4300
+    vr5000 vr5400 vr5500
+
+    # HP/PA-RISC
+    700 7100 7100lc 7200 7300 8000
+
+    # Advanced RISC Machines
+    armv2 armv2a armv3 armv3m armv4 armv4t armv5 armv5t armv5te armv6 armv6j iwmmxt ep9312
+
+    : propagated optional ;
+
+# Used to select a specific variant of C++ ABI if the compiler supports several.
+feature.feature c++abi : : propagated optional ;
+
+feature.feature conditional : : incidental free ;
+
+# The value of 'no' prevents building of a target.
+feature.feature build : yes no : optional ;
+
+# Windows-specific features
+
+feature.feature user-interface : console gui wince native auto ;
+
+feature.feature variant : : implicit composite propagated symmetric ;
+
+
+# Declares a new variant.
+#
+# First determines explicit properties for this variant, by refining parents'
+# explicit properties with the passed explicit properties. The result is
+# remembered and will be used if this variant is used as parent.
+#
+# Second, determines the full property set for this variant by adding to the
+# explicit properties default values for all missing non-symmetric properties.
+#
+# Lastly, makes appropriate value of 'variant' property expand to the full
+# property set.
+#
+rule variant ( name            # Name of the variant
+    : parents-or-properties *  # Specifies parent variants, if
+                               # 'explicit-properties' are given, and
+                               # explicit-properties or parents otherwise.
+    : explicit-properties *    # Explicit properties.
+    )
+{
+    local parents ;
+    if ! $(explicit-properties)
+    {
+        if $(parents-or-properties[1]:G)
+        {
+            explicit-properties = $(parents-or-properties) ;
+        }
+        else
+        {
+            parents = $(parents-or-properties) ;
+        }
+    }
+    else
+    {
+        parents = $(parents-or-properties) ;
+    }
+
+    # The problem is that we have to check for conflicts between base variants.
+    if $(parents[2])
+    {
+        errors.error "multiple base variants are not yet supported" ;
+    }
+
+    local inherited ;
+    # Add explicitly specified properties for parents.
+    for local p in $(parents)
+    {
+        # TODO: This check may be made stricter.
+        if ! [ feature.is-implicit-value $(p) ]
+        {
+            errors.error "Invalid base variant" $(p)  ;
+        }
+
+        inherited += $(.explicit-properties.$(p)) ;
+    }
+    property.validate $(explicit-properties) ;
+    explicit-properties = [ property.refine $(inherited)
+        : $(explicit-properties) ] ;
+
+    # Record explicitly specified properties for this variant. We do this after
+    # inheriting parents' properties so they affect other variants derived from
+    # this one.
+    .explicit-properties.$(name) = $(explicit-properties) ;
+
+    feature.extend variant : $(name) ;
+    feature.compose <variant>$(name) : $(explicit-properties) ;
+}
+IMPORT $(__name__) : variant : : variant ;
+
+
+variant debug   : <optimization>off <debug-symbols>on <inlining>off
+                  <runtime-debugging>on ;
+variant release : <optimization>speed <debug-symbols>off <inlining>full
+                  <runtime-debugging>off <define>NDEBUG ;
+variant profile : release : <profiling>on <debug-symbols>on ;
+
+
+class searched-lib-target : abstract-file-target
+{
+    rule __init__ ( name
+        : project
+        : shared ?
+        : search *
+        : action
+    )
+    {
+        abstract-file-target.__init__ $(name) : SEARCHED_LIB : $(project)
+          : $(action) : ;
+
+        self.shared = $(shared) ;
+        self.search = $(search) ;
+    }
+
+    rule shared ( )
+    {
+        return $(self.shared) ;
+    }
+
+    rule search ( )
+    {
+        return $(self.search) ;
+    }
+
+    rule actualize-location ( target )
+    {
+        NOTFILE $(target) ;
+    }
+
+    rule path ( )
+    {
+    }
+}
+
+
+# The generator class for libraries (target type LIB). Depending on properties
+# it will request building of the appropriate specific library type --
+# -- SHARED_LIB, STATIC_LIB or SHARED_LIB.
+#
+class lib-generator : generator
+{
+    rule __init__ ( * : * )
+    {
+        generator.__init__ $(1) : $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ;
+    }
+
+    rule run ( project name ? : property-set : sources * )
+    {
+        # The lib generator is composing, and can be only invoked with an
+        # explicit name. This check is present in generator.run (and so in
+        # builtin.linking-generator) but duplicated here to avoid doing extra
+        # work.
+        if $(name)
+        {
+            local properties = [ $(property-set).raw ] ;
+            # Determine the needed target type.
+            local actual-type ;
+                # <source>files can be generated by <conditional>@rule feature
+                # in which case we do not consider it a SEARCHED_LIB type.
+            if ! <source> in $(properties:G) &&
+               ( <search> in $(properties:G) || <name> in $(properties:G) )
+            {
+                actual-type = SEARCHED_LIB ;
+            }
+            else if <file> in $(properties:G)
+            {
+                actual-type = LIB ;
+            }
+            else if <link>shared in $(properties)
+            {
+                actual-type = SHARED_LIB ;
+            }
+            else
+            {
+                actual-type = STATIC_LIB ;
+            }
+            property-set = [ $(property-set).add-raw <main-target-type>LIB ] ;
+            # Construct the target.
+            return [ generators.construct $(project) $(name) : $(actual-type)
+                : $(property-set) : $(sources) ] ;
+        }
+    }
+
+    rule viable-source-types ( )
+    {
+        return * ;
+    }
+}
+
+
+generators.register [ new lib-generator builtin.lib-generator :  : LIB ] ;
+
+
+# The implementation of the 'lib' rule. Beyond standard syntax that rule allows
+# simplified: "lib a b c ;".
+#
+rule lib ( names + : sources * : requirements * : default-build * :
+    usage-requirements * )
+{
+    if $(names[2])
+    {
+        if <name> in $(requirements:G)
+        {
+            errors.user-error "When several names are given to the 'lib' rule" :
+                "it is not allowed to specify the <name> feature." ;
+        }
+        if $(sources)
+        {
+            errors.user-error "When several names are given to the 'lib' rule" :
+                "it is not allowed to specify sources." ;
+        }
+    }
+
+    # This is a circular module dependency so it must be imported here.
+    import targets ;
+
+    local project = [ project.current ] ;
+    local result ;
+
+    for local name in $(names)
+    {
+        local r = $(requirements) ;
+        # Support " lib a ; " and " lib a b c ; " syntax.
+        if ! $(sources) && ! <name> in $(requirements:G)
+                        && ! <file> in $(requirements:G)
+        {
+            r += <name>$(name) ;
+        }
+        result += [ targets.main-target-alternative
+            [ new typed-target $(name) : $(project) : LIB
+                : [ targets.main-target-sources $(sources) : $(name) ]
+                : [ targets.main-target-requirements $(r) : $(project) ]
+                : [ targets.main-target-default-build $(default-build) : $(project) ]
+                : [ targets.main-target-usage-requirements $(usage-requirements) : $(project) ]
+            ] ] ;
+    }
+    return $(result) ;
+}
+IMPORT $(__name__) : lib : : lib ;
+
+
+class searched-lib-generator : generator
+{
+    import property-set ;
+
+    rule __init__ ( )
+    {
+        # The requirements cause the generators to be tried *only* when we're
+        # building a lib target with a 'search' feature. This seems ugly --- all
+        # we want is to make sure searched-lib-generator is not invoked deep
+        # inside transformation search to produce intermediate targets.
+        generator.__init__ searched-lib-generator : : SEARCHED_LIB ;
+    }
+
+    rule run ( project name ? : property-set : sources * )
+    {
+        if $(name)
+        {
+            # If 'name' is empty, it means we have not been called to build a
+            # top-level target. In this case, we just fail immediately, because
+            # searched-lib-generator cannot be used to produce intermediate
+            # targets.
+
+            local properties = [ $(property-set).raw ] ;
+            local shared ;
+            if <link>shared in $(properties)
+            {
+                shared = true ;
+            }
+
+            local search = [ feature.get-values <search> : $(properties) ] ;
+
+            local a = [ new null-action $(property-set) ] ;
+            local lib-name = [ feature.get-values <name> : $(properties) ] ;
+            lib-name ?= $(name) ;
+            local t = [ new searched-lib-target $(lib-name) : $(project)
+                : $(shared) : $(search) : $(a) ] ;
+            # We return sources for a simple reason. If there is
+            #    lib png : z : <name>png ;
+            # the 'z' target should be returned, so that apps linking to 'png'
+            # will link to 'z', too.
+            return [ property-set.create <xdll-path>$(search) ]
+                   [ virtual-target.register $(t) ] $(sources) ;
+        }
+    }
+}
+
+generators.register [ new searched-lib-generator ] ;
+
+
+class prebuilt-lib-generator : generator
+{
+    rule __init__ ( * : * )
+    {
+        generator.__init__ $(1) : $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ;
+    }
+
+    rule run ( project name ? : property-set : sources * )
+    {
+        local f = [ $(property-set).get <file> ] ;
+        return $(f) $(sources) ;
+    }
+}
+
+generators.register
+  [ new prebuilt-lib-generator builtin.prebuilt : : LIB : <file> ] ;
+
+generators.override builtin.prebuilt : builtin.lib-generator ;
+
+class preprocessed-target-class : basic-target
+{
+    import generators ;
+    rule construct ( name : sources * : property-set )
+    {
+        local result = [ generators.construct [ project ]
+            $(name) : PREPROCESSED_CPP : $(property-set) : $(sources) ] ;
+        if ! $(result)
+        {
+            result = [ generators.construct [ project ]
+                $(name) : PREPROCESSED_C : $(property-set) : $(sources) ] ;
+        }
+        if ! $(result)
+        {
+            local s ;
+            for x in $(sources)
+            {
+                s += [ $(x).name ] ;
+            }
+            local p = [ project ] ;
+            errors.user-error
+                "In project" [ $(p).name ] :
+                "Could not construct preprocessed file \"$(name)\" from $(s:J=, )." ;
+        }
+        return $(result) ;
+    }
+}
+
+rule preprocessed ( name : sources * : requirements * : default-build * :
+    usage-requirements * )
+{
+    local project = [ project.current ] ;
+    return [ targets.main-target-alternative
+        [ new preprocessed-target-class $(name) : $(project)
+            : [ targets.main-target-sources $(sources) : $(name) ]
+            : [ targets.main-target-requirements $(r) : $(project) ]
+            : [ targets.main-target-default-build $(default-build) : $(project) ]
+            : [ targets.main-target-usage-requirements $(usage-requirements) : $(project) ]
+        ] ] ;
+}
+
+IMPORT $(__name__) : preprocessed : : preprocessed ;
+
+class compile-action : action
+{
+    import sequence ;
+
+    rule __init__ ( targets * : sources * : action-name : properties * )
+    {
+        action.__init__ $(targets) : $(sources) : $(action-name) : $(properties) ;
+    }
+
+    # For all virtual targets for the same dependency graph as self, i.e. which
+    # belong to the same main target, add their directories to the include path.
+    #
+    rule adjust-properties ( property-set )
+    {
+        local s = [ $(self.targets[1]).creating-subvariant ] ;
+        return [ $(property-set).add-raw
+          [ $(s).implicit-includes "include" : H ] ] ;
+    }
+}
+
+
+# Declare a special compiler generator. The only thing it does is changing the
+# type used to represent 'action' in the constructed dependency graph to
+# 'compile-action'. That class in turn adds additional include paths to handle
+# cases when a source file includes headers which are generated themselves.
+#
+class C-compiling-generator : generator
+{
+    rule __init__ ( id : source-types + : target-types + : requirements *
+        : optional-properties * )
+    {
+        generator.__init__ $(id) : $(source-types) : $(target-types) :
+            $(requirements) : $(optional-properties) ;
+    }
+
+    rule action-class ( )
+    {
+        return compile-action ;
+    }
+}
+
+
+rule register-c-compiler ( id : source-types + : target-types + : requirements *
+    : optional-properties * )
+{
+    generators.register [ new C-compiling-generator $(id) : $(source-types) :
+        $(target-types) : $(requirements) : $(optional-properties) ] ;
+}
+
+# FIXME: this is ugly, should find a better way (we would like client code to
+# register all generators as "generators.some-rule" instead of
+# "some-module.some-rule".)
+#
+IMPORT $(__name__) : register-c-compiler : : generators.register-c-compiler ;
+
+
+# The generator class for handling EXE and SHARED_LIB creation.
+#
+class linking-generator : generator
+{
+    import path ;
+    import project ;
+    import property-set ;
+    import type ;
+
+    rule __init__ ( id
+        composing ?    :  # The generator will be composing if a non-empty
+                          # string is passed or the parameter is not given. To
+                          # make the generator non-composing, pass an empty
+                          # string ("").
+        source-types + :
+        target-types + :
+        requirements * )
+    {
+        composing ?= true ;
+        generator.__init__ $(id) $(composing) : $(source-types)
+            : $(target-types) : $(requirements) ;
+    }
+
+    rule run ( project name ? : property-set : sources + )
+    {
+        sources += [ $(property-set).get <library>  ] ;
+
+        # Add <library-path> properties for all searched libraries.
+        local extra ;
+        for local s in $(sources)
+        {
+            if [ $(s).type ] = SEARCHED_LIB
+            {
+                local search = [ $(s).search ] ;
+                extra += <library-path>$(search) ;
+            }
+        }
+
+        # It is possible that sources include shared libraries that did not came
+        # from 'lib' targets, e.g. .so files specified as sources. In this case
+        # we have to add extra dll-path properties and propagate extra xdll-path
+        # properties so that application linking to us will get xdll-path to
+        # those libraries.
+        local extra-xdll-paths ;
+        for local s in $(sources)
+        {
+            if [ type.is-derived [ $(s).type ] SHARED_LIB ] && ! [ $(s).action ]
+            {
+                # Unfortunately, we do not have a good way to find the path to a
+                # file, so use this nasty approach.
+                #
+                # TODO: This needs to be done better. One thing that is really
+                # broken with this is that it does not work correctly with
+                # projects having multiple source locations.
+                local p = [ $(s).project ] ;
+                local location = [ path.root [ $(s).name ]
+                    [ $(p).get source-location ] ] ;
+                extra-xdll-paths += [ path.parent $(location) ] ;
+            }
+        }
+
+        # Hardcode DLL paths only when linking executables.
+        # Pros: do not need to relink libraries when installing.
+        # Cons: "standalone" libraries (plugins, python extensions) can not
+        # hardcode paths to dependent libraries.
+        if [ $(property-set).get <hardcode-dll-paths> ] = true
+            && [ type.is-derived $(self.target-types[1]) EXE ]
+        {
+            local xdll-path = [ $(property-set).get <xdll-path> ] ;
+            extra += <dll-path>$(xdll-path) <dll-path>$(extra-xdll-paths) ;
+        }
+
+        if $(extra)
+        {
+            property-set = [ $(property-set).add-raw $(extra) ] ;
+        }
+
+        local result = [ generator.run $(project) $(name) : $(property-set)
+            : $(sources) ] ;
+
+        local ur ;
+        if $(result)
+        {
+            ur = [ extra-usage-requirements $(result) : $(property-set) ] ;
+            ur = [ $(ur).add
+              [ property-set.create <xdll-path>$(extra-xdll-paths) ] ] ;
+        }
+        return $(ur) $(result) ;
+    }
+
+    rule extra-usage-requirements ( created-targets * : property-set )
+    {
+        local result = [ property-set.empty ] ;
+        local extra ;
+
+        # Add appropricate <xdll-path> usage requirements.
+        local raw = [ $(property-set).raw ] ;
+        if <link>shared in $(raw)
+        {
+            local paths ;
+            local pwd = [ path.pwd ] ;
+            for local t in $(created-targets)
+            {
+                if [ type.is-derived [ $(t).type ] SHARED_LIB ]
+                {
+                    paths += [ path.root [ path.make [ $(t).path ] ] $(pwd) ] ;
+                }
+            }
+            extra += $(paths:G=<xdll-path>) ;
+        }
+
+        # We need to pass <xdll-path> features that we've got from sources,
+        # because if a shared library is built, exe using it needs to know paths
+        # to other shared libraries this one depends on in order to be able to
+        # find them all at runtime.
+
+        # Just pass all features in property-set, it is theorically possible
+        # that we will propagate <xdll-path> features explicitly specified by
+        # the user, but then the user is to blaim for using an internal feature.
+        local values = [ $(property-set).get <xdll-path> ] ;
+        extra += $(values:G=<xdll-path>) ;
+
+        if $(extra)
+        {
+            result = [ property-set.create $(extra) ] ;
+        }
+        return $(result) ;
+    }
+
+    rule generated-targets ( sources + : property-set : project name ? )
+    {
+        local sources2 ;     # Sources to pass to inherited rule.
+        local properties2 ;  # Properties to pass to inherited rule.
+        local libraries ;    # Library sources.
+
+        # Searched libraries are not passed as arguments to the linker but via
+        # some option. So, we pass them to the action using a property.
+        properties2 = [ $(property-set).raw ] ;
+        local fsa ;
+        local fst ;
+        for local s in $(sources)
+        {
+            if [ type.is-derived [ $(s).type ] SEARCHED_LIB ]
+            {
+                local name = [ $(s).name ] ;
+                if [ $(s).shared ]
+                {
+                    fsa += $(name) ;
+                }
+                else
+                {
+                    fst += $(name) ;
+                }
+            }
+            else
+            {
+                sources2 += $(s) ;
+            }
+        }
+        properties2 += <find-shared-library>$(fsa:J=&&)
+                       <find-static-library>$(fst:J=&&) ;
+
+        return [ generator.generated-targets $(sources2)
+            : [ property-set.create $(properties2) ] : $(project) $(name) ] ;
+    }
+}
+
+
+rule register-linker ( id composing ? : source-types + : target-types +
+    : requirements * )
+{
+    generators.register [ new linking-generator $(id) $(composing)
+        : $(source-types) : $(target-types) : $(requirements) ] ;
+}
+
+
+# The generator class for handling STATIC_LIB creation.
+#
+class archive-generator : generator
+{
+    import property-set ;
+
+    rule __init__ ( id composing ? : source-types + : target-types +
+        : requirements * )
+    {
+        composing ?= true ;
+        generator.__init__ $(id) $(composing) : $(source-types)
+            : $(target-types) : $(requirements) ;
+    }
+
+    rule run ( project name ? : property-set : sources + )
+    {
+        sources += [ $(property-set).get <library>  ] ;
+
+        local result = [ generator.run $(project) $(name) : $(property-set)
+            : $(sources) ] ;
+
+        # For static linking, if we get a library in source, we can not directly
+        # link to it so we need to cause our dependencies to link to that
+        # library. There are two approaches:
+        # - adding the library to the list of returned targets.
+        # - using the <library> usage requirements.
+        # The problem with the first is:
+        #
+        #     lib a1 : : <file>liba1.a ;
+        #     lib a2 : a2.cpp a1 : <link>static ;
+        #     install dist : a2 ;
+        #
+        # here we will try to install 'a1', even though it is not necessary in
+        # the general case. With the second approach, even indirect dependants
+        # will link to the library, but it should not cause any harm. So, return
+        # all LIB sources together with created targets, so that dependants link
+        # to them.
+        local usage-requirements ;
+        if [ $(property-set).get <link> ] = static
+        {
+            for local t in $(sources)
+            {
+                if [ type.is-derived [ $(t).type ] LIB ]
+                {
+                    usage-requirements += <library>$(t) ;
+                }
+            }
+        }
+
+        usage-requirements = [ property-set.create $(usage-requirements) ] ;
+
+        return $(usage-requirements) $(result) ;
+    }
+}
+
+
+rule register-archiver ( id composing ? : source-types + : target-types +
+    : requirements * )
+{
+    generators.register [ new archive-generator $(id) $(composing)
+        : $(source-types) : $(target-types) : $(requirements) ] ;
+}
+
+
+# Generator that accepts everything and produces nothing. Useful as a general
+# fallback for toolset-specific actions like PCH generation.
+#
+class dummy-generator : generator
+{
+    import property-set ;
+
+    rule run ( project name ? : property-set : sources + )
+    {
+        return [ property-set.empty ] ;
+    }
+}
+
+IMPORT $(__name__) : register-linker register-archiver
+    : : generators.register-linker generators.register-archiver ;
diff --git a/jam-files/boost-build/tools/builtin.py b/jam-files/boost-build/tools/builtin.py
new file mode 100644
index 00000000..31a7bffe
--- /dev/null
+++ b/jam-files/boost-build/tools/builtin.py
@@ -0,0 +1,718 @@
+# Status: minor updates by Steven Watanabe to make gcc work
+#
+#  Copyright (C) Vladimir Prus 2002. Permission to copy, use, modify, sell and
+#  distribute this software is granted provided this copyright notice appears in
+#  all copies. This software is provided "as is" without express or implied
+#  warranty, and with no claim as to its suitability for any purpose.
+
+""" Defines standard features and rules.
+"""
+
+import b2.build.targets as targets
+
+import sys
+from b2.build import feature, property, virtual_target, generators, type, property_set, scanner
+from b2.util.utility import *
+from b2.util import path, regex, bjam_signature
+import b2.tools.types
+from b2.manager import get_manager
+
+
+# Records explicit properties for a variant.
+# The key is the variant name.
+__variant_explicit_properties = {}
+
+def reset ():
+    """ Clear the module state. This is mainly for testing purposes.
+    """
+    global __variant_explicit_properties
+
+    __variant_explicit_properties = {}
+
+@bjam_signature((["name"], ["parents_or_properties", "*"], ["explicit_properties", "*"]))
+def variant (name, parents_or_properties, explicit_properties = []):
+    """ Declares a new variant.
+        First determines explicit properties for this variant, by
+        refining parents' explicit properties with the passed explicit
+        properties. The result is remembered and will be used if
+        this variant is used as parent.
+        
+        Second, determines the full property set for this variant by
+        adding to the explicit properties default values for all properties 
+        which neither present nor are symmetric.
+        
+        Lastly, makes appropriate value of 'variant' property expand
+        to the full property set.
+        name:                   Name of the variant
+        parents_or_properties:  Specifies parent variants, if 
+                                'explicit_properties' are given,
+                                and explicit_properties otherwise.
+        explicit_properties:    Explicit properties.
+    """
+    parents = []
+    if not explicit_properties:
+        explicit_properties = parents_or_properties
+    else:
+        parents = parents_or_properties
+    
+    inherited = property_set.empty()
+    if parents:
+
+        # If we allow multiple parents, we'd have to to check for conflicts
+        # between base variants, and there was no demand for so to bother.
+        if len (parents) > 1:
+            raise BaseException ("Multiple base variants are not yet supported")
+        
+        p = parents[0]
+        # TODO: the check may be stricter
+        if not feature.is_implicit_value (p):
+            raise BaseException ("Invalid base varaint '%s'" % p)
+        
+        inherited = __variant_explicit_properties[p]
+
+    explicit_properties = property_set.create_with_validation(explicit_properties)
+    explicit_properties = inherited.refine(explicit_properties)
+    
+    # Record explicitly specified properties for this variant
+    # We do this after inheriting parents' properties, so that
+    # they affect other variants, derived from this one.
+    __variant_explicit_properties[name] = explicit_properties
+           
+    feature.extend('variant', [name])
+    feature.compose ("<variant>" + name, explicit_properties.all())
+
+__os_names = """
+    amiga aix bsd cygwin darwin dos emx freebsd hpux iphone linux netbsd
+    openbsd osf qnx qnxnto sgi solaris sun sunos svr4 sysv ultrix unix unixware
+    vms windows
+""".split()
+
+# Translates from bjam current OS to the os tags used in host-os and target-os,
+# i.e. returns the running host-os.
+#
+def default_host_os():
+    host_os = os_name()
+    if host_os not in (x.upper() for x in __os_names):
+        if host_os == 'NT': host_os = 'windows'
+        elif host_os == 'AS400': host_os = 'unix'
+        elif host_os == 'MINGW': host_os = 'windows'
+        elif host_os == 'BSDI': host_os = 'bsd'
+        elif host_os == 'COHERENT': host_os = 'unix'
+        elif host_os == 'DRAGONFLYBSD': host_os = 'bsd'
+        elif host_os == 'IRIX': host_os = 'sgi'
+        elif host_os == 'MACOSX': host_os = 'darwin'
+        elif host_os == 'KFREEBSD': host_os = 'freebsd'
+        elif host_os == 'LINUX': host_os = 'linux'
+        else: host_os = 'unix'
+    return host_os.lower()
+
+def register_globals ():
+    """ Registers all features and variants declared by this module.
+    """
+
+    # This feature is used to determine which OS we're on.
+    # In future, this may become <target-os> and <host-os>
+    # TODO: check this. Compatibility with bjam names? Subfeature for version?
+    os = sys.platform
+    feature.feature ('os', [os], ['propagated', 'link-incompatible'])
+
+
+    # The two OS features define a known set of abstract OS names. The host-os is
+    # the OS under which bjam is running. Even though this should really be a fixed
+    # property we need to list all the values to prevent unknown value errors. Both
+    # set the default value to the current OS to account for the default use case of
+    # building on the target OS.
+    feature.feature('host-os', __os_names)
+    feature.set_default('host-os', default_host_os())
+
+    feature.feature('target-os', __os_names, ['propagated', 'link-incompatible'])
+    feature.set_default('target-os', default_host_os())
+    
+    feature.feature ('toolset', [], ['implicit', 'propagated' ,'symmetric'])
+    
+    feature.feature ('stdlib', ['native'], ['propagated', 'composite'])
+    
+    feature.feature ('link', ['shared', 'static'], ['propagated'])
+    feature.feature ('runtime-link', ['shared', 'static'], ['propagated'])
+    feature.feature ('runtime-debugging', ['on', 'off'], ['propagated'])
+    
+    
+    feature.feature ('optimization',  ['off', 'speed', 'space'], ['propagated'])
+    feature.feature ('profiling', ['off', 'on'], ['propagated'])
+    feature.feature ('inlining', ['off', 'on', 'full'], ['propagated'])
+    
+    feature.feature ('threading', ['single', 'multi'], ['propagated'])
+    feature.feature ('rtti', ['on', 'off'], ['propagated'])
+    feature.feature ('exception-handling', ['on', 'off'], ['propagated'])
+    feature.feature ('debug-symbols', ['on', 'off'], ['propagated'])
+    feature.feature ('define', [], ['free'])
+    feature.feature ('include', [], ['free', 'path']) #order-sensitive
+    feature.feature ('cflags', [], ['free'])
+    feature.feature ('cxxflags', [], ['free'])
+    feature.feature ('linkflags', [], ['free'])
+    feature.feature ('archiveflags', [], ['free'])
+    feature.feature ('version', [], ['free'])
+    
+    feature.feature ('location-prefix', [], ['free'])
+
+    feature.feature ('action', [], ['free'])
+
+    
+    # The following features are incidental, since
+    # in themself they have no effect on build products.
+    # Not making them incidental will result in problems in corner
+    # cases, for example:
+    # 
+    #    unit-test a : a.cpp : <use>b ;
+    #    lib b : a.cpp b ;
+    # 
+    # Here, if <use> is not incidental, we'll decide we have two 
+    # targets for a.obj with different properties, and will complain.
+    #
+    # Note that making feature incidental does not mean it's ignored. It may
+    # be ignored when creating the virtual target, but the rest of build process
+    # will use them.
+    feature.feature ('use', [], ['free', 'dependency', 'incidental'])
+    feature.feature ('dependency', [], ['free', 'dependency', 'incidental'])
+    feature.feature ('implicit-dependency', [], ['free', 'dependency', 'incidental'])
+
+    feature.feature('warnings', [
+        'on',         # Enable default/"reasonable" warning level for the tool.
+        'all',        # Enable all possible warnings issued by the tool.
+        'off'],       # Disable all warnings issued by the tool.
+        ['incidental', 'propagated'])
+
+    feature.feature('warnings-as-errors', [
+        'off',        # Do not fail the compilation if there are warnings.
+        'on'],        # Fail the compilation if there are warnings.
+        ['incidental', 'propagated'])
+    
+    feature.feature ('source', [], ['free', 'dependency', 'incidental'])
+    feature.feature ('library', [], ['free', 'dependency', 'incidental'])
+    feature.feature ('file', [], ['free', 'dependency', 'incidental'])
+    feature.feature ('find-shared-library', [], ['free']) #order-sensitive ;
+    feature.feature ('find-static-library', [], ['free']) #order-sensitive ;
+    feature.feature ('library-path', [], ['free', 'path']) #order-sensitive ;
+    # Internal feature.
+    feature.feature ('library-file', [], ['free', 'dependency'])
+    
+    feature.feature ('name', [], ['free'])
+    feature.feature ('tag', [], ['free'])
+    feature.feature ('search', [], ['free', 'path']) #order-sensitive ;
+    feature.feature ('location', [], ['free', 'path'])
+    
+    feature.feature ('dll-path', [], ['free', 'path'])
+    feature.feature ('hardcode-dll-paths', ['true', 'false'], ['incidental'])
+    
+    
+    # This is internal feature which holds the paths of all dependency
+    # dynamic libraries. On Windows, it's needed so that we can all
+    # those paths to PATH, when running applications.
+    # On Linux, it's needed to add proper -rpath-link command line options.
+    feature.feature ('xdll-path', [], ['free', 'path'])
+    
+    #provides means to specify def-file for windows dlls.
+    feature.feature ('def-file', [], ['free', 'dependency'])
+    
+    # This feature is used to allow specific generators to run.
+    # For example, QT tools can only be invoked when QT library
+    # is used. In that case, <allow>qt will be in usage requirement
+    # of the library.
+    feature.feature ('allow', [], ['free'])
+    
+    # The addressing model to generate code for. Currently a limited set only
+    # specifying the bit size of pointers.
+    feature.feature('address-model', ['16', '32', '64'], ['propagated', 'optional'])
+
+    # Type of CPU architecture to compile for.
+    feature.feature('architecture', [
+        # x86 and x86-64
+        'x86',
+
+        # ia64
+        'ia64',
+
+        # Sparc
+        'sparc',
+
+        # RS/6000 & PowerPC
+        'power',
+
+        # MIPS/SGI
+        'mips1', 'mips2', 'mips3', 'mips4', 'mips32', 'mips32r2', 'mips64',
+
+        # HP/PA-RISC
+        'parisc',
+        
+        # Advanced RISC Machines
+        'arm',
+
+        # Combined architectures for platforms/toolsets that support building for
+        # multiple architectures at once. "combined" would be the default multi-arch
+        # for the toolset.
+        'combined',
+        'combined-x86-power'],
+
+        ['propagated', 'optional'])
+
+    # The specific instruction set in an architecture to compile.
+    feature.feature('instruction-set', [
+        # x86 and x86-64
+        'i386', 'i486', 'i586', 'i686', 'pentium', 'pentium-mmx', 'pentiumpro', 'pentium2', 'pentium3',
+        'pentium3m', 'pentium-m', 'pentium4', 'pentium4m', 'prescott', 'nocona', 'conroe', 'conroe-xe',
+        'conroe-l', 'allendale', 'mermon', 'mermon-xe', 'kentsfield', 'kentsfield-xe', 'penryn', 'wolfdale',
+        'yorksfield', 'nehalem', 'k6', 'k6-2', 'k6-3', 'athlon', 'athlon-tbird', 'athlon-4', 'athlon-xp',
+        'athlon-mp', 'k8', 'opteron', 'athlon64', 'athlon-fx', 'winchip-c6', 'winchip2', 'c3', 'c3-2',
+
+        # ia64
+        'itanium', 'itanium1', 'merced', 'itanium2', 'mckinley',
+
+        # Sparc
+        'v7', 'cypress', 'v8', 'supersparc', 'sparclite', 'hypersparc', 'sparclite86x', 'f930', 'f934',
+        'sparclet', 'tsc701', 'v9', 'ultrasparc', 'ultrasparc3',
+
+        # RS/6000 & PowerPC
+        '401', '403', '405', '405fp', '440', '440fp', '505', '601', '602',
+        '603', '603e', '604', '604e', '620', '630', '740', '7400',
+        '7450', '750', '801', '821', '823', '860', '970', '8540',
+        'power-common', 'ec603e', 'g3', 'g4', 'g5', 'power', 'power2',
+        'power3', 'power4', 'power5', 'powerpc', 'powerpc64', 'rios',
+        'rios1', 'rsc', 'rios2', 'rs64a',
+
+        # MIPS
+        '4kc', '4kp', '5kc', '20kc', 'm4k', 'r2000', 'r3000', 'r3900', 'r4000',
+        'r4100', 'r4300', 'r4400', 'r4600', 'r4650',
+        'r6000', 'r8000', 'rm7000', 'rm9000', 'orion', 'sb1', 'vr4100',
+        'vr4111', 'vr4120', 'vr4130', 'vr4300',
+        'vr5000', 'vr5400', 'vr5500',
+
+        # HP/PA-RISC
+        '700', '7100', '7100lc', '7200', '7300', '8000',
+        
+        # Advanced RISC Machines
+        'armv2', 'armv2a', 'armv3', 'armv3m', 'armv4', 'armv4t', 'armv5',
+        'armv5t', 'armv5te', 'armv6', 'armv6j', 'iwmmxt', 'ep9312'],
+
+        ['propagated', 'optional'])
+
+    feature.feature('conditional', [], ['incidental', 'free'])
+
+    # The value of 'no' prevents building of a target.
+    feature.feature('build', ['yes', 'no'], ['optional'])
+    
+    # Windows-specific features
+    feature.feature ('user-interface', ['console', 'gui', 'wince', 'native', 'auto'], [])
+    feature.feature ('variant', [], ['implicit', 'composite', 'propagated', 'symmetric'])
+
+
+    variant ('debug', ['<optimization>off', '<debug-symbols>on', '<inlining>off', '<runtime-debugging>on'])
+    variant ('release', ['<optimization>speed', '<debug-symbols>off', '<inlining>full', 
+                         '<runtime-debugging>off', '<define>NDEBUG'])
+    variant ('profile', ['release'], ['<profiling>on', '<debug-symbols>on'])
+
+    type.register ('H', ['h'])
+    type.register ('HPP', ['hpp'], 'H')
+    type.register ('C', ['c'])
+    
+
+reset ()
+register_globals ()
+
+class SearchedLibTarget (virtual_target.AbstractFileTarget):
+    def __init__ (self, name, project, shared, real_name, search, action):
+        virtual_target.AbstractFileTarget.__init__ (self, name, 'SEARCHED_LIB', project, action)
+        
+        self.shared_ = shared
+        self.real_name_ = real_name
+        if not self.real_name_:
+            self.real_name_ = name
+        self.search_ = search
+
+    def shared (self):
+        return self.shared_
+    
+    def real_name (self):
+        return self.real_name_
+    
+    def search (self):
+        return self.search_
+        
+    def actualize_location (self, target):
+        bjam.call("NOTFILE", target)
+    
+    def path (self):
+        #FIXME: several functions rely on this not being None
+        return ""
+
+
+class CScanner (scanner.Scanner):
+    def __init__ (self, includes):
+        scanner.Scanner.__init__ (self)
+    
+        self.includes_ = includes
+
+    def pattern (self):
+        return r'#[ \t]*include[ ]*(<(.*)>|"(.*)")'
+
+    def process (self, target, matches, binding):
+       
+        angle = regex.transform (matches, "<(.*)>")
+        quoted = regex.transform (matches, '"(.*)"')
+
+        g = str(id(self))
+        b = os.path.normpath(os.path.dirname(binding[0]))
+        
+        # Attach binding of including file to included targets.
+        # When target is directly created from virtual target
+        # this extra information is unnecessary. But in other
+        # cases, it allows to distinguish between two headers of the 
+        # same name included from different places.      
+        # We don't need this extra information for angle includes,
+        # since they should not depend on including file (we can't
+        # get literal "." in include path).
+        g2 = g + "#" + b
+
+        g = "<" + g + ">"
+        g2 = "<" + g2 + ">"
+        angle = [g + x for x in angle]
+        quoted = [g2 + x for x in quoted]
+
+        all = angle + quoted
+        bjam.call("mark-included", target, all)
+
+        engine = get_manager().engine()
+        engine.set_target_variable(angle, "SEARCH", get_value(self.includes_))
+        engine.set_target_variable(quoted, "SEARCH", [b] + get_value(self.includes_))
+        
+        # Just propagate current scanner to includes, in a hope
+        # that includes do not change scanners. 
+        get_manager().scanners().propagate(self, angle + quoted)
+        
+scanner.register (CScanner, 'include')
+type.set_scanner ('CPP', CScanner)
+type.set_scanner ('C', CScanner)
+
+# Ported to trunk@47077
+class LibGenerator (generators.Generator):
+    """ The generator class for libraries (target type LIB). Depending on properties it will
+        request building of the approapriate specific type -- SHARED_LIB, STATIC_LIB or 
+        SHARED_LIB.
+    """
+
+    def __init__(self, id = 'LibGenerator', composing = True, source_types = [], target_types_and_names = ['LIB'], requirements = []):
+        generators.Generator.__init__(self, id, composing, source_types, target_types_and_names, requirements)
+    
+    def run(self, project, name, prop_set, sources):
+
+        # The lib generator is composing, and can be only invoked with
+        # explicit name. This check is present in generator.run (and so in
+        # builtin.LinkingGenerator), but duplicate it here to avoid doing
+        # extra work.
+        if name:
+            properties = prop_set.raw()
+            # Determine the needed target type
+            actual_type = None
+            properties_grist = get_grist(properties)
+            if '<source>' not in properties_grist  and \
+               ('<search>' in properties_grist or '<name>' in properties_grist):
+                actual_type = 'SEARCHED_LIB'
+            elif '<file>' in properties_grist:
+                # The generator for 
+                actual_type = 'LIB'
+            elif '<link>shared' in properties:
+                actual_type = 'SHARED_LIB'
+            else:
+                actual_type = 'STATIC_LIB'
+
+            prop_set = prop_set.add_raw(['<main-target-type>LIB'])
+
+            # Construct the target.
+            return generators.construct(project, name, actual_type, prop_set, sources)
+
+    def viable_source_types(self):
+        return ['*']
+
+generators.register(LibGenerator())
+
+def lib(names, sources=[], requirements=[], default_build=[], usage_requirements=[]):
+    """The implementation of the 'lib' rule. Beyond standard syntax that rule allows
+    simplified: 'lib a b c ;'."""
+
+    if len(names) > 1:
+        if any(r.startswith('<name>') for r in requirements):
+            get_manager().errors()("When several names are given to the 'lib' rule\n" +
+                                   "it is not allowed to specify the <name> feature.")
+
+        if sources:
+            get_manager().errors()("When several names are given to the 'lib' rule\n" +
+                                   "it is not allowed to specify sources.")
+
+    project = get_manager().projects().current()
+    result = []
+
+    for name in names:
+        r = requirements[:]
+
+        # Support " lib a ; " and " lib a b c ; " syntax.
+        if not sources and not any(r.startswith("<name>") for r in requirements) \
+           and not any(r.startswith("<file") for r in requirements):
+            r.append("<name>" + name)
+
+        result.append(targets.create_typed_metatarget(name, "LIB", sources,
+                                                      r,
+                                                      default_build,
+                                                      usage_requirements))
+    return result
+
+get_manager().projects().add_rule("lib", lib)
+
+
+# Updated to trunk@47077
+class SearchedLibGenerator (generators.Generator):
+    def __init__ (self, id = 'SearchedLibGenerator', composing = False, source_types = [], target_types_and_names = ['SEARCHED_LIB'], requirements = []):
+        # TODO: the comment below looks strange. There are no requirements!
+        # The requirements cause the generators to be tried *only* when we're building
+        # lib target and there's 'search' feature. This seems ugly --- all we want
+        # is make sure SearchedLibGenerator is not invoked deep in transformation
+        # search.
+        generators.Generator.__init__ (self, id, composing, source_types, target_types_and_names, requirements)
+    
+    def run(self, project, name, prop_set, sources):
+
+        if not name:
+            return None
+
+        # If name is empty, it means we're called not from top-level.
+        # In this case, we just fail immediately, because SearchedLibGenerator
+        # cannot be used to produce intermediate targets.
+        
+        properties = prop_set.raw ()
+        shared = '<link>shared' in properties
+
+        a = virtual_target.NullAction (project.manager(), prop_set)
+        
+        real_name = feature.get_values ('<name>', properties)
+        if real_name:
+            real_name = real_name[0]
+        else:
+            real_nake = name
+        search = feature.get_values('<search>', properties)
+        usage_requirements = property_set.create(['<xdll-path>' + p for p in search])
+        t = SearchedLibTarget(name, project, shared, real_name, search, a)
+
+        # We return sources for a simple reason. If there's
+        #    lib png : z : <name>png ; 
+        # the 'z' target should be returned, so that apps linking to
+        # 'png' will link to 'z', too.
+        return(usage_requirements, [b2.manager.get_manager().virtual_targets().register(t)] + sources)
+
+generators.register (SearchedLibGenerator ())
+
+### class prebuilt-lib-generator : generator
+### {
+###     rule __init__ ( * : * )
+###     {
+###         generator.__init__ $(1) : $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ;
+###     }
+### 
+###     rule run ( project name ? : prop_set : sources * : multiple ? )
+###     {
+###         local f = [ $(prop_set).get <file> ] ;
+###         return $(f) $(sources) ;
+###     }    
+### }
+### 
+### generators.register 
+###   [ new prebuilt-lib-generator builtin.prebuilt : : LIB : <file> ] ;
+
+
+class CompileAction (virtual_target.Action):
+    def __init__ (self, manager, sources, action_name, prop_set):
+        virtual_target.Action.__init__ (self, manager, sources, action_name, prop_set)
+
+    def adjust_properties (self, prop_set):
+        """ For all virtual targets for the same dependency graph as self, 
+            i.e. which belong to the same main target, add their directories
+            to include path.
+        """
+        s = self.targets () [0].creating_subvariant ()
+
+        return prop_set.add_raw (s.implicit_includes ('include', 'H'))
+
+class CCompilingGenerator (generators.Generator):
+    """ Declare a special compiler generator.
+        The only thing it does is changing the type used to represent
+        'action' in the constructed dependency graph to 'CompileAction'.
+        That class in turn adds additional include paths to handle a case
+        when a source file includes headers which are generated themselfs.
+    """
+    def __init__ (self, id, composing, source_types, target_types_and_names, requirements):
+        # TODO: (PF) What to do with optional_properties? It seemed that, in the bjam version, the arguments are wrong.
+        generators.Generator.__init__ (self, id, composing, source_types, target_types_and_names, requirements)
+            
+    def action_class (self):
+        return CompileAction
+
+def register_c_compiler (id, source_types, target_types, requirements, optional_properties = []):
+    g = CCompilingGenerator (id, False, source_types, target_types, requirements + optional_properties)
+    return generators.register (g)
+
+
+class LinkingGenerator (generators.Generator):
+    """ The generator class for handling EXE and SHARED_LIB creation.
+    """
+    def __init__ (self, id, composing, source_types, target_types_and_names, requirements):
+        generators.Generator.__init__ (self, id, composing, source_types, target_types_and_names, requirements)
+        
+    def run (self, project, name, prop_set, sources):
+       
+        lib_sources = prop_set.get('<library>')
+        sources.extend(lib_sources)
+        
+        # Add <library-path> properties for all searched libraries
+        extra = []
+        for s in sources:
+            if s.type () == 'SEARCHED_LIB':
+                search = s.search()
+                extra.extend(property.Property('<library-path>', sp) for sp in search)
+
+        orig_xdll_path = []
+                   
+        if prop_set.get('<hardcode-dll-paths>') == ['true'] \
+               and type.is_derived(self.target_types_ [0], 'EXE'):
+            xdll_path = prop_set.get('<xdll-path>')
+            orig_xdll_path = [ replace_grist(x, '<dll-path>') for x in xdll_path ]
+            # It's possible that we have libraries in sources which did not came
+            # from 'lib' target. For example, libraries which are specified
+            # just as filenames as sources. We don't have xdll-path properties
+            # for such target, but still need to add proper dll-path properties.
+            for s in sources:
+                if type.is_derived (s.type (), 'SHARED_LIB') and not s.action ():
+                    # Unfortunately, we don't have a good way to find the path
+                    # to a file, so use this nasty approach.
+                    p = s.project()
+                    location = path.root(s.name(), p.get('source-location'))
+                    xdll_path.append(path.parent(location))
+                          
+            extra.extend(property.Property('<dll-path>', sp) for sp in xdll_path)
+        
+        if extra:
+            prop_set = prop_set.add_raw (extra)
+                        
+        result = generators.Generator.run(self, project, name, prop_set, sources)
+
+        if result:
+            ur = self.extra_usage_requirements(result, prop_set)
+            ur = ur.add(property_set.create(orig_xdll_path))
+        else:
+            return None
+        
+        return(ur, result)
+    
+    def extra_usage_requirements (self, created_targets, prop_set):
+        
+        result = property_set.empty ()
+        extra = []
+                        
+        # Add appropriate <xdll-path> usage requirements.
+        raw = prop_set.raw ()
+        if '<link>shared' in raw:
+            paths = []
+            
+            # TODO: is it safe to use the current directory? I think we should use 
+            # another mechanism to allow this to be run from anywhere.
+            pwd = os.getcwd()
+            
+            for t in created_targets:
+                if type.is_derived(t.type(), 'SHARED_LIB'):
+                    paths.append(path.root(path.make(t.path()), pwd))
+
+            extra += replace_grist(paths, '<xdll-path>')
+        
+        # We need to pass <xdll-path> features that we've got from sources,
+        # because if shared library is built, exe which uses it must know paths
+        # to other shared libraries this one depends on, to be able to find them
+        # all at runtime.
+                        
+        # Just pass all features in property_set, it's theorically possible
+        # that we'll propagate <xdll-path> features explicitly specified by
+        # the user, but then the user's to blaim for using internal feature.                
+        values = prop_set.get('<xdll-path>')
+        extra += replace_grist(values, '<xdll-path>')
+        
+        if extra:
+            result = property_set.create(extra)
+
+        return result
+
+    def generated_targets (self, sources, prop_set, project, name):
+
+        # sources to pass to inherited rule
+        sources2 = []
+        # sources which are libraries
+        libraries  = []
+        
+        # Searched libraries are not passed as argument to linker
+        # but via some option. So, we pass them to the action
+        # via property. 
+        fsa = []
+        fst = []
+        for s in sources:
+            if type.is_derived(s.type(), 'SEARCHED_LIB'):
+                n = s.real_name()
+                if s.shared():
+                    fsa.append(n)
+
+                else:
+                    fst.append(n)
+
+            else:
+                sources2.append(s)
+
+        add = []
+        if fsa:
+            add.append("<find-shared-library>" + '&&'.join(fsa))
+        if fst:
+            add.append("<find-static-library>" + '&&'.join(fst))
+
+        spawn = generators.Generator.generated_targets(self, sources2, prop_set.add_raw(add), project, name)       
+        return spawn
+
+
+def register_linker(id, source_types, target_types, requirements):
+    g = LinkingGenerator(id, True, source_types, target_types, requirements)
+    generators.register(g)
+
+class ArchiveGenerator (generators.Generator):
+    """ The generator class for handling STATIC_LIB creation.
+    """
+    def __init__ (self, id, composing, source_types, target_types_and_names, requirements):
+        generators.Generator.__init__ (self, id, composing, source_types, target_types_and_names, requirements)
+        
+    def run (self, project, name, prop_set, sources):
+        sources += prop_set.get ('<library>')
+        
+        result = generators.Generator.run (self, project, name, prop_set, sources)
+             
+        return result
+
+### rule register-archiver ( id composing ? : source_types + : target_types + :
+###                             requirements * )
+### {
+###     local g = [ new ArchiveGenerator $(id) $(composing) : $(source_types) 
+###                 : $(target_types) : $(requirements) ] ;
+###     generators.register $(g) ;
+### }
+### 
+### 
+### IMPORT $(__name__) : register-linker register-archiver 
+###   : : generators.register-linker generators.register-archiver ;
+### 
+### 
+### 
+
+get_manager().projects().add_rule("variant", variant)
+
+import stage
+import symlink
+import message
diff --git a/jam-files/boost-build/tools/cast.jam b/jam-files/boost-build/tools/cast.jam
new file mode 100644
index 00000000..6c84922f
--- /dev/null
+++ b/jam-files/boost-build/tools/cast.jam
@@ -0,0 +1,91 @@
+# Copyright 2005 Vladimir Prus.
+# Distributed under the Boost Software License, Version 1.0. (See
+# accompanying file LICENSE_1_0.txt or copy at
+# http://www.boost.org/LICENSE_1_0.txt)
+
+# Defines main target 'cast', used to change type for target. For example, in Qt
+# library one wants two kinds of CPP files -- those that just compiled and those
+# that are passed via the MOC tool.
+#
+# This is done with:
+#
+#    exe main : main.cpp [ cast _ moccable-cpp : widget.cpp ] ;
+#
+# Boost.Build will assing target type CPP to both main.cpp and widget.cpp. Then,
+# the cast rule will change target type of widget.cpp to MOCCABLE-CPP, and Qt
+# support will run the MOC tool as part of the build process.
+#
+# At the moment, the 'cast' rule only works for non-derived (source) targets.
+#
+# TODO: The following comment is unclear or incorrect. Clean it up.
+# > Another solution would be to add a separate main target 'moc-them' that
+# > would moc all the passed sources, no matter what their type is, but I prefer
+# > cast, as defining a new target type + generator for that type is somewhat
+# > simpler than defining a main target rule.
+
+import "class" : new ;
+import errors ;
+import project ;
+import property-set ;
+import targets ;
+import type ;
+
+
+class cast-target-class : typed-target
+{
+    import type ;
+
+    rule __init__ ( name : project : type : sources * : requirements * :
+        default-build * : usage-requirements * )
+    {
+        typed-target.__init__ $(name) : $(project) : $(type) : $(sources) :
+            $(requirements) : $(default-build) : $(usage-requirements) ;
+    }
+
+    rule construct ( name : source-targets * : property-set )
+    {
+        local result ;
+        for local s in $(source-targets)
+        {
+            if ! [ class.is-a $(s) : file-target ]
+            {
+                import errors ;
+                errors.user-error Source to the 'cast' rule is not a file! ;
+            }
+            if [ $(s).action ]
+            {
+                import errors ;
+                errors.user-error Only non-derived target are allowed for
+                    'cast'. : when building [ full-name ] ;
+            }
+            local r = [ $(s).clone-with-different-type $(self.type) ] ;
+            result += [ virtual-target.register $(r) ] ;
+        }
+        return [ property-set.empty ] $(result) ;
+    }
+}
+
+
+rule cast ( name type : sources * : requirements * : default-build * :
+    usage-requirements * )
+{
+    local project = [ project.current ] ;
+
+    local real-type = [ type.type-from-rule-name $(type) ] ;
+    if ! $(real-type)
+    {
+        errors.user-error No type corresponds to the main target rule name
+            '$(type)' : "Hint: try a lowercase name" ;
+    }
+
+    targets.main-target-alternative [ new cast-target-class $(name) : $(project)
+        : $(real-type)
+        : [ targets.main-target-sources $(sources) : $(name) ]
+        : [ targets.main-target-requirements $(requirements) : $(project) ]
+        : [ targets.main-target-default-build $(default-build) : $(project) ]
+        : [ targets.main-target-usage-requirements $(usage-requirements) :
+            $(project) ] ] ;
+}
+
+
+IMPORT $(__name__) : cast : : cast ;
diff --git a/jam-files/boost-build/tools/cast.py b/jam-files/boost-build/tools/cast.py
new file mode 100644
index 00000000..8f053f11
--- /dev/null
+++ b/jam-files/boost-build/tools/cast.py
@@ -0,0 +1,69 @@
+# Status: ported
+# Base revision: 64432.
+# Copyright 2005-2010 Vladimir Prus.
+# Distributed under the Boost Software License, Version 1.0. (See
+# accompanying file LICENSE_1_0.txt or copy at
+# http://www.boost.org/LICENSE_1_0.txt)
+
+# Defines main target 'cast', used to change type for target. For example, in Qt
+# library one wants two kinds of CPP files -- those that just compiled and those
+# that are passed via the MOC tool.
+#
+# This is done with:
+#
+#    exe main : main.cpp [ cast _ moccable-cpp : widget.cpp ] ;
+#
+# Boost.Build will assing target type CPP to both main.cpp and widget.cpp. Then,
+# the cast rule will change target type of widget.cpp to MOCCABLE-CPP, and Qt
+# support will run the MOC tool as part of the build process.
+#
+# At the moment, the 'cast' rule only works for non-derived (source) targets.
+#
+# TODO: The following comment is unclear or incorrect. Clean it up.
+# > Another solution would be to add a separate main target 'moc-them' that
+# > would moc all the passed sources, no matter what their type is, but I prefer
+# > cast, as defining a new target type + generator for that type is somewhat
+# > simpler than defining a main target rule.
+
+import b2.build.targets as targets
+import b2.build.virtual_target as virtual_target
+
+from b2.manager import get_manager
+from b2.util import bjam_signature
+
+class CastTargetClass(targets.TypedTarget):
+
+    def construct(name, source_targets, ps):
+        result = []
+        for s in source_targets:
+            if not isinstance(s, virtual_targets.FileTarget):
+                get_manager().errors()("Source to the 'cast' metatager is not a file")
+
+            if s.action():
+                get_manager().errors()("Only non-derived targets allowed as sources for 'cast'.")
+
+
+            r = s.clone_with_different_type(self.type())
+            result.append(get_manager().virtual_targets().register(r))
+
+        return result
+    
+
+@bjam_signature((["name", "type"], ["sources", "*"], ["requirements", "*"],
+                 ["default_build", "*"], ["usage_requirements", "*"]))
+def cast(name, type, sources, requirements, default_build, usage_requirements):
+   
+    from b2.manager import get_manager
+    t = get_manager().targets()
+    
+    project = get_manager().projects().current()
+        
+    return t.main_target_alternative(
+        CastTargetClass(name, project, type,
+                        t.main_target_sources(sources, name),
+                        t.main_target_requirements(requirements, project),
+                        t.main_target_default_build(default_build, project),
+                        t.main_target_usage_requirements(usage_requirements, project)))
+
+
+get_manager().projects().add_rule("cast", cast)
diff --git a/jam-files/boost-build/tools/clang-darwin.jam b/jam-files/boost-build/tools/clang-darwin.jam
new file mode 100644
index 00000000..a8abc7d6
--- /dev/null
+++ b/jam-files/boost-build/tools/clang-darwin.jam
@@ -0,0 +1,170 @@
+# Copyright Vladimir Prus 2004.
+# Copyright Noel Belcourt 2007.
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt
+# or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+import clang ;
+import feature : feature ;
+import os ;
+import toolset ;
+import toolset : flags ;
+import gcc ;
+import common ;
+import errors ;
+import generators ;
+
+feature.extend-subfeature toolset clang : platform : darwin ;
+
+toolset.inherit-generators clang-darwin 
+  <toolset>clang <toolset-clang:platform>darwin 
+  : gcc 
+  # Don't inherit PCH generators. They were not tested, and probably
+  # don't work for this compiler.
+  : gcc.mingw.link gcc.mingw.link.dll gcc.compile.c.pch gcc.compile.c++.pch
+  ;
+
+generators.override clang-darwin.prebuilt : builtin.lib-generator ;
+generators.override clang-darwin.prebuilt : builtin.prebuilt ;
+generators.override clang-darwin.searched-lib-generator : searched-lib-generator ;
+
+toolset.inherit-rules clang-darwin : gcc ;
+toolset.inherit-flags clang-darwin : gcc 
+        : <inlining>off <inlining>on <inlining>full <optimization>space 
+          <warnings>off <warnings>all <warnings>on
+          <architecture>x86/<address-model>32
+          <architecture>x86/<address-model>64
+        ;
+        
+if [ MATCH (--debug-configuration) : [ modules.peek : ARGV ] ]
+{
+    .debug-configuration = true ;
+}
+                       
+# vectorization diagnostics
+feature vectorize : off on full ;
+
+# Initializes the clang-darwin toolset
+#   version in optional
+#   name (default clang++) is used to invoke the specified clang complier
+#   compile and link options allow you to specify addition command line options for each version
+rule init ( version ? :  command * : options * )
+{
+    command = [ common.get-invocation-command clang-darwin : clang++ 
+        : $(command) ] ;
+
+    # Determine the version
+    local command-string = $(command:J=" ") ;
+    if $(command)
+    {    
+        version ?= [ MATCH "^([0-9.]+)"
+            : [ SHELL "$(command-string) -dumpversion" ] ] ;
+    }
+
+    local condition = [ common.check-init-parameters clang-darwin
+        : version $(version) ] ;    
+
+    common.handle-options clang-darwin : $(condition) : $(command) : $(options) ;
+
+    gcc.init-link-flags clang-darwin darwin $(condition) ;
+
+}
+
+SPACE = " " ;
+
+flags clang-darwin.compile OPTIONS <cflags> ;
+flags clang-darwin.compile OPTIONS <cxxflags> ;
+# flags clang-darwin.compile INCLUDES <include> ;
+
+# Declare flags and action for compilation.
+toolset.flags clang-darwin.compile OPTIONS <optimization>off   : -O0 ;
+toolset.flags clang-darwin.compile OPTIONS <optimization>speed : -O3 ;
+toolset.flags clang-darwin.compile OPTIONS <optimization>space : -Os ;
+
+toolset.flags clang-darwin.compile OPTIONS <inlining>off  : -fno-inline ;
+toolset.flags clang-darwin.compile OPTIONS <inlining>on   : -Wno-inline ;
+toolset.flags clang-darwin.compile OPTIONS <inlining>full : -finline-functions -Wno-inline ;
+
+toolset.flags clang-darwin.compile OPTIONS <warnings>off : -w ;
+toolset.flags clang-darwin.compile OPTIONS <warnings>on  : -Wall ;
+toolset.flags clang-darwin.compile OPTIONS <warnings>all : -Wall -pedantic ;
+toolset.flags clang-darwin.compile OPTIONS <warnings-as-errors>on : -Werror ;
+
+toolset.flags clang-darwin.compile OPTIONS <debug-symbols>on : -g ;
+toolset.flags clang-darwin.compile OPTIONS <profiling>on : -pg ;
+toolset.flags clang-darwin.compile OPTIONS <rtti>off : -fno-rtti ;
+
+actions compile.c
+{
+    "$(CONFIG_COMMAND)" -x c $(OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -c -o "$(<)" "$(>)"
+}
+
+actions compile.c++
+{
+    "$(CONFIG_COMMAND)" -x c++ $(OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -c -o "$(<)" "$(>)"
+}
+
+flags clang-darwin ARFLAGS <archiveflags> ;
+
+# Default value. Mostly for the sake of clang-linux
+# that inherits from gcc, but does not has the same
+# logic to set the .AR variable. We can put the same
+# logic in clang-linux, but that's hardly worth the trouble
+# as on Linux, 'ar' is always available.
+.AR = ar ;
+
+rule archive ( targets * : sources * : properties * )
+{
+  # Always remove archive and start again. Here's rationale from
+  # Andre Hentz:
+  #
+  # I had a file, say a1.c, that was included into liba.a. 
+  # I moved a1.c to a2.c, updated my Jamfiles and rebuilt. 
+  # My program was crashing with absurd errors. 
+  # After some debugging I traced it back to the fact that a1.o was *still* 
+  # in liba.a 
+  #
+  # Rene Rivera:
+  #
+  # Originally removing the archive was done by splicing an RM
+  # onto the archive action. That makes archives fail to build on NT
+  # when they have many files because it will no longer execute the
+  # action directly and blow the line length limit. Instead we
+  # remove the file in a different action, just before the building
+  # of the archive.
+  #
+  local clean.a = $(targets[1])(clean) ;
+  TEMPORARY $(clean.a) ;
+  NOCARE $(clean.a) ;
+  LOCATE on $(clean.a) = [ on $(targets[1]) return $(LOCATE) ] ;
+  DEPENDS $(clean.a) : $(sources) ;
+  DEPENDS $(targets) : $(clean.a) ;
+  common.RmTemps $(clean.a) : $(targets) ;
+}
+
+actions piecemeal archive
+{
+  "$(.AR)" $(AROPTIONS) rc "$(<)" "$(>)"
+  "ranlib" -cs "$(<)"
+}
+
+flags clang-darwin.link USER_OPTIONS <linkflags> ;
+
+# Declare actions for linking
+rule link ( targets * : sources * : properties * )
+{
+  SPACE on $(targets) = " " ;
+  # Serialize execution of the 'link' action, since
+  # running N links in parallel is just slower.
+  JAM_SEMAPHORE on $(targets) = <s>clang-darwin-link-semaphore ;
+}
+
+actions link bind LIBRARIES
+{
+    "$(CONFIG_COMMAND)" $(USER_OPTIONS) -L"$(LINKPATH)" -o "$(<)" "$(>)" "$(LIBRARIES)" -l$(FINDLIBS-SA) -l$(FINDLIBS-ST) $(OPTIONS)
+}
+
+actions link.dll bind LIBRARIES
+{
+    "$(CONFIG_COMMAND)" $(USER_OPTIONS) -L"$(LINKPATH)" -o "$(<)" -single_module -dynamiclib -install_name "$(<[1]:D=)" "$(>)"  "$(LIBRARIES)" -l$(FINDLIBS-SA) -l$(FINDLIBS-ST) $(OPTIONS)
+}
diff --git a/jam-files/boost-build/tools/clang-linux.jam b/jam-files/boost-build/tools/clang-linux.jam
new file mode 100644
index 00000000..036d749e
--- /dev/null
+++ b/jam-files/boost-build/tools/clang-linux.jam
@@ -0,0 +1,196 @@
+#  Copyright (c) 2003      Michael Stevens
+#  Copyright (c) 2010-2011 Bryce Lelbach (blelbach@cct.lsu.edu, maintainer)
+#
+#  Use, modification and distribution is subject to the Boost Software
+#  License Version 1.0. (See accompanying file LICENSE_1_0.txt or
+#  http://www.boost.org/LICENSE_1_0.txt)
+
+import toolset ;
+import feature ;
+import toolset : flags ;
+
+import clang ;
+import gcc ;
+import common ;
+import errors ;
+import generators ;
+import type ;
+import numbers ;
+
+feature.extend-subfeature toolset clang : platform : linux ;
+
+toolset.inherit-generators clang-linux 
+    <toolset>clang <toolset-clang:platform>linux : gcc
+  : gcc.mingw.link gcc.mingw.link.dll gcc.cygwin.link gcc.cygwin.link.dll ;
+generators.override clang-linux.prebuilt : builtin.lib-generator ;
+generators.override clang-linux.prebuilt : builtin.prebuilt ;
+generators.override clang-linux.searched-lib-generator : searched-lib-generator ;
+
+# Override default do-nothing generators.
+generators.override clang-linux.compile.c.pch   : pch.default-c-pch-generator   ;
+generators.override clang-linux.compile.c++.pch : pch.default-cpp-pch-generator ;
+ 
+type.set-generated-target-suffix PCH
+  : <toolset>clang <toolset-clang:platform>linux : pth ;
+
+toolset.inherit-rules clang-linux : gcc ;
+toolset.inherit-flags clang-linux : gcc 
+  : <inlining>off <inlining>on <inlining>full
+    <optimization>space <optimization>speed
+    <warnings>off <warnings>all <warnings>on ;
+        
+if [ MATCH (--debug-configuration) : [ modules.peek : ARGV ] ] {
+  .debug-configuration = true ;
+}
+                       
+rule init ( version ? :  command * : options * ) {
+  command = [ common.get-invocation-command clang-linux : clang++ 
+    : $(command) ] ;
+                
+  # Determine the version
+  local command-string = $(command:J=" ") ;
+
+  if $(command) {    
+    version ?= [ MATCH "version ([0-9.]+)"
+      : [ SHELL "$(command-string) --version" ] ] ;
+  }
+
+  local condition = [ common.check-init-parameters clang-linux
+    : version $(version) ] ;
+    
+  common.handle-options clang-linux : $(condition) : $(command) : $(options) ;
+
+  gcc.init-link-flags clang-linux gnu $(condition) ;
+}
+
+###############################################################################
+# Flags
+
+toolset.flags clang-linux.compile OPTIONS <cflags> ;
+toolset.flags clang-linux.compile OPTIONS <cxxflags> ;
+
+toolset.flags clang-linux.compile OPTIONS <optimization>off   : ;
+toolset.flags clang-linux.compile OPTIONS <optimization>speed : -O3 ;
+toolset.flags clang-linux.compile OPTIONS <optimization>space : -Os ;
+
+# note: clang silently ignores some of these inlining options
+toolset.flags clang-linux.compile OPTIONS <inlining>off  : -fno-inline ;
+toolset.flags clang-linux.compile OPTIONS <inlining>on   : -Wno-inline ;
+toolset.flags clang-linux.compile OPTIONS <inlining>full : -finline-functions -Wno-inline ;
+
+toolset.flags clang-linux.compile OPTIONS <warnings>off : -w ;
+toolset.flags clang-linux.compile OPTIONS <warnings>on  : -Wall ;
+toolset.flags clang-linux.compile OPTIONS <warnings>all : -Wall -pedantic ;
+toolset.flags clang-linux.compile OPTIONS <warnings-as-errors>on : -Werror ;
+
+toolset.flags clang-linux.compile OPTIONS <debug-symbols>on : -g ;
+toolset.flags clang-linux.compile OPTIONS <profiling>on : -pg ;
+toolset.flags clang-linux.compile OPTIONS <rtti>off : -fno-rtti ;
+
+###############################################################################
+# C and C++ compilation
+
+rule compile.c++ ( targets * : sources * : properties * ) {
+  gcc.setup-threading $(targets) : $(sources) : $(properties) ;
+  gcc.setup-fpic $(targets) : $(sources) : $(properties) ;
+  gcc.setup-address-model $(targets) : $(sources) : $(properties) ;
+
+  local pth-file = [ on $(<) return $(PCH_FILE) ] ;
+
+  if $(pth-file) {
+    DEPENDS $(<) : $(pth-file) ;
+    compile.c++.with-pch $(targets) : $(sources) ;
+  }
+  else {
+    compile.c++.without-pth $(targets) : $(sources) ;
+  }
+}
+
+actions compile.c++.without-pth {
+  "$(CONFIG_COMMAND)" -c -x c++ $(OPTIONS) $(USER_OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -o "$(<)" "$(>)"
+}
+
+actions compile.c++.with-pch bind PCH_FILE
+{
+  "$(CONFIG_COMMAND)" -c -x c++ $(OPTIONS) $(USER_OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -Xclang -include-pth -Xclang "$(PCH_FILE)" -o "$(<)" "$(>)"
+}
+
+rule compile.c ( targets * : sources * : properties * )
+{
+  gcc.setup-threading $(targets) : $(sources) : $(properties) ;
+  gcc.setup-fpic $(targets) : $(sources) : $(properties) ;
+  gcc.setup-address-model $(targets) : $(sources) : $(properties) ;    
+
+  local pth-file = [ on $(<) return $(PCH_FILE) ] ;
+
+  if $(pth-file) {
+    DEPENDS $(<) : $(pth-file) ;
+    compile.c.with-pch $(targets) : $(sources) ;
+  }
+  else {
+    compile.c.without-pth $(targets) : $(sources) ;
+  }
+}
+
+actions compile.c.without-pth
+{
+  "$(CONFIG_COMMAND)" -c -x c $(OPTIONS) $(USER_OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -c -o "$(<)" "$(>)"
+}
+
+actions compile.c.with-pch bind PCH_FILE
+{
+  "$(CONFIG_COMMAND)" -c -x c $(OPTIONS) $(USER_OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -Xclang -include-pth -Xclang "$(PCH_FILE)" -c -o "$(<)" "$(>)"
+}
+
+###############################################################################
+# PCH emission
+
+rule compile.c++.pch ( targets * : sources * : properties * ) {
+  gcc.setup-threading $(targets) : $(sources) : $(properties) ;
+  gcc.setup-fpic $(targets) : $(sources) : $(properties) ;
+  gcc.setup-address-model $(targets) : $(sources) : $(properties) ;    
+}
+
+actions compile.c++.pch {
+  rm -f "$(<)" && "$(CONFIG_COMMAND)" -x c++-header $(OPTIONS) $(USER_OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -Xclang -emit-pth -o "$(<)" "$(>)"
+}
+
+rule compile.c.pch ( targets * : sources * : properties * ) {
+  gcc.setup-threading $(targets) : $(sources) : $(properties) ;
+  gcc.setup-fpic $(targets) : $(sources) : $(properties) ;
+  gcc.setup-address-model $(targets) : $(sources) : $(properties) ;    
+}
+
+actions compile.c.pch
+{
+  rm -f "$(<)" && "$(CONFIG_COMMAND)" -x c-header $(OPTIONS) $(USER_OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -Xclang -emit-pth -o "$(<)" "$(>)"
+}
+
+###############################################################################
+# Linking
+
+SPACE = " " ;
+
+rule link ( targets * : sources * : properties * ) {
+  gcc.setup-threading $(targets) : $(sources) : $(properties) ;
+  gcc.setup-address-model $(targets) : $(sources) : $(properties) ;    
+  SPACE on $(targets) = " " ;
+  JAM_SEMAPHORE on $(targets) = <s>clang-linux-link-semaphore ;
+}
+
+actions link bind LIBRARIES {
+  "$(CONFIG_COMMAND)" -L"$(LINKPATH)" -Wl,-R$(SPACE)-Wl,"$(RPATH)" -Wl,-rpath-link$(SPACE)-Wl,"$(RPATH_LINK)" -o "$(<)" "$(>)" "$(LIBRARIES)" -l$(FINDLIBS-SA) -l$(FINDLIBS-ST) $(OPTIONS) $(USER_OPTIONS)
+}
+
+rule link.dll ( targets * : sources * : properties * ) {
+  gcc.setup-threading $(targets) : $(sources) : $(properties) ;
+  gcc.setup-address-model $(targets) : $(sources) : $(properties) ;    
+  SPACE on $(targets) = " " ;
+  JAM_SEMAPHORE on $(targets) = <s>clang-linux-link-semaphore ;
+}
+
+# Differ from 'link' above only by -shared.
+actions link.dll bind LIBRARIES {
+  "$(CONFIG_COMMAND)" -L"$(LINKPATH)" -Wl,-R$(SPACE)-Wl,"$(RPATH)" -o "$(<)" -Wl,-soname$(SPACE)-Wl,$(<[1]:D=) -shared "$(>)"  "$(LIBRARIES)" -l$(FINDLIBS-SA) -l$(FINDLIBS-ST) $(OPTIONS) $(USER_OPTIONS)
+}
+
diff --git a/jam-files/boost-build/tools/clang.jam b/jam-files/boost-build/tools/clang.jam
new file mode 100644
index 00000000..e0ac9a55
--- /dev/null
+++ b/jam-files/boost-build/tools/clang.jam
@@ -0,0 +1,27 @@
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt
+# or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+# This is a generic 'clang' toolset. Depending on the current system, it
+# forwards either to 'clang-unix' or 'clang-darwin' modules.
+
+import feature ;
+import os ;
+import toolset ;
+
+feature.extend toolset : clang ;
+feature.subfeature toolset clang : platform : : propagated link-incompatible ;
+
+rule init ( * : * )
+{
+    if [ os.name ] = MACOSX
+    {
+        toolset.using clang-darwin : 
+          $(1) : $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ;
+    }
+    else
+    {
+        toolset.using clang-linux : 
+          $(1) : $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ;
+    }
+}
diff --git a/jam-files/boost-build/tools/common.jam b/jam-files/boost-build/tools/common.jam
new file mode 100644
index 00000000..ed835a36
--- /dev/null
+++ b/jam-files/boost-build/tools/common.jam
@@ -0,0 +1,994 @@
+# Copyright 2003, 2005 Dave Abrahams
+# Copyright 2005, 2006 Rene Rivera
+# Copyright 2005 Toon Knapen
+# Copyright 2002, 2003, 2004, 2005, 2006 Vladimir Prus
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+#   Provides actions common to all toolsets, such as creating directories and
+# removing files.
+
+import os ;
+import modules ;
+import utility ;
+import print ;
+import type ;
+import feature ;
+import errors ;
+import path ;
+import sequence ;
+import toolset ;
+import virtual-target ;
+
+if [ MATCH (--debug-configuration) : [ modules.peek : ARGV ] ]
+{
+    .debug-configuration = true ;
+}
+if [ MATCH (--show-configuration) : [ modules.peek : ARGV ] ]
+{
+    .show-configuration = true ;
+}
+
+# Configurations
+#
+# The following class helps to manage toolset configurations. Each configuration
+# has a unique ID and one or more parameters. A typical example of a unique ID
+# is a condition generated by 'common.check-init-parameters' rule. Other kinds
+# of IDs can be used. Parameters may include any details about the configuration
+# like 'command', 'path', etc.
+#
+# A toolset configuration may be in one of the following states:
+#
+#   - registered
+#       Configuration has been registered (e.g. explicitly or by auto-detection
+#       code) but has not yet been marked as used, i.e. 'toolset.using' rule has
+#       not yet been called for it.
+#   - used
+#       Once called 'toolset.using' rule marks the configuration as 'used'.
+#
+# The main difference between the states above is that while a configuration is
+# 'registered' its options can be freely changed. This is useful in particular
+# for autodetection code - all detected configurations may be safely overwritten
+# by user code.
+
+class configurations
+{
+    import errors ;
+
+    rule __init__ ( )
+    {
+    }
+
+    # Registers a configuration.
+    #
+    # Returns 'true' if the configuration has been added and an empty value if
+    # it already exists. Reports an error if the configuration is 'used'.
+    #
+    rule register ( id )
+    {
+        if $(id) in $(self.used)
+        {
+            errors.error "common: the configuration '$(id)' is in use" ;
+        }
+
+        local retval ;
+
+        if ! $(id) in $(self.all)
+        {
+            self.all += $(id) ;
+
+            # Indicate that a new configuration has been added.
+            retval = true ;
+        }
+
+        return $(retval) ;
+    }
+
+    # Mark a configuration as 'used'.
+    #
+    # Returns 'true' if the state of the configuration has been changed to
+    # 'used' and an empty value if it the state has not been changed. Reports an
+    # error if the configuration is not known.
+    #
+    rule use ( id )
+    {
+        if ! $(id) in $(self.all)
+        {
+            errors.error "common: the configuration '$(id)' is not known" ;
+        }
+
+        local retval ;
+
+        if ! $(id) in $(self.used)
+        {
+            self.used += $(id) ;
+
+            # Indicate that the configuration has been marked as 'used'.
+            retval = true ;
+        }
+
+        return $(retval) ;
+    }
+
+    # Return all registered configurations.
+    #
+    rule all ( )
+    {
+        return $(self.all) ;
+    }
+
+    # Return all used configurations.
+    #
+    rule used ( )
+    {
+        return $(self.used) ;
+    }
+
+    # Returns the value of a configuration parameter.
+    #
+    rule get ( id : param )
+    {
+        return $(self.$(param).$(id)) ;
+    }
+
+    # Sets the value of a configuration parameter.
+    #
+    rule set ( id : param : value * )
+    {
+        self.$(param).$(id) = $(value) ;
+    }
+}
+
+
+# The rule for checking toolset parameters. Trailing parameters should all be
+# parameter name/value pairs. The rule will check that each parameter either has
+# a value in each invocation or has no value in each invocation. Also, the rule
+# will check that the combination of all parameter values is unique in all
+# invocations.
+#
+# Each parameter name corresponds to a subfeature. This rule will declare a
+# subfeature the first time a non-empty parameter value is passed and will
+# extend it with all the values.
+#
+# The return value from this rule is a condition to be used for flags settings.
+#
+rule check-init-parameters ( toolset requirement * : * )
+{
+    local sig = $(toolset) ;
+    local condition = <toolset>$(toolset) ;
+    local subcondition ;
+    for local index in 2 3 4 5 6 7 8 9
+    {
+        local name = $($(index)[1]) ;
+        local value = $($(index)[2]) ;
+
+        if $(value)-is-not-empty
+        {
+            condition = $(condition)-$(value) ;
+            if $(.had-unspecified-value.$(toolset).$(name))
+            {
+                errors.user-error
+                    "$(toolset) initialization: parameter '$(name)'"
+                    "inconsistent" : "no value was specified in earlier"
+                    "initialization" : "an explicit value is specified now" ;
+            }
+            # The below logic is for intel compiler. It calls this rule with
+            # 'intel-linux' and 'intel-win' as toolset, so we need to get the
+            # base part of toolset name. We can not pass 'intel' as toolset
+            # because in that case it will be impossible to register versionless
+            # intel-linux and intel-win toolsets of a specific version.
+            local t = $(toolset) ;
+            local m = [ MATCH ([^-]*)- : $(toolset) ] ;
+            if $(m)
+            {
+                t = $(m[1]) ;
+            }
+            if ! $(.had-value.$(toolset).$(name))
+            {
+                if ! $(.declared-subfeature.$(t).$(name))
+                {
+                    feature.subfeature toolset $(t) : $(name) : : propagated ;
+                    .declared-subfeature.$(t).$(name) = true ;
+                }
+                .had-value.$(toolset).$(name) = true ;
+            }
+            feature.extend-subfeature toolset $(t) : $(name) : $(value) ;
+            subcondition += <toolset-$(t):$(name)>$(value) ;
+        }
+        else
+        {
+            if $(.had-value.$(toolset).$(name))
+            {
+                errors.user-error
+                    "$(toolset) initialization: parameter '$(name)'"
+                    "inconsistent" : "an explicit value was specified in an"
+                    "earlier initialization" : "no value is specified now" ;
+            }
+            .had-unspecified-value.$(toolset).$(name) = true ;
+        }
+        sig = $(sig)$(value:E="")- ;
+    }
+    if $(sig) in $(.all-signatures)
+    {
+        local message =
+            "duplicate initialization of $(toolset) with the following parameters: " ;
+        for local index in 2 3 4 5 6 7 8 9
+        {
+            local p = $($(index)) ;
+            if $(p)
+            {
+                message += "$(p[1]) = $(p[2]:E=<unspecified>)" ;
+            }
+        }
+        message += "previous initialization at $(.init-loc.$(sig))" ;
+        errors.user-error
+            $(message[1]) : $(message[2]) : $(message[3]) : $(message[4]) :
+            $(message[5]) : $(message[6]) : $(message[7]) : $(message[8]) ;
+    }
+    .all-signatures += $(sig) ;
+    .init-loc.$(sig) = [ errors.nearest-user-location ] ;
+
+    # If we have a requirement, this version should only be applied under that
+    # condition. To accomplish this we add a toolset requirement that imposes
+    # the toolset subcondition, which encodes the version.
+    if $(requirement)
+    {
+        local r = <toolset>$(toolset) $(requirement) ;
+        r = $(r:J=,) ;
+        toolset.add-requirements $(r):$(subcondition) ;
+    }
+
+    # We add the requirements, if any, to the condition to scope the toolset
+    # variables and options to this specific version.
+    condition += $(requirement) ;
+
+    if $(.show-configuration)
+    {
+        ECHO notice: $(condition) ;
+    }
+    return $(condition:J=/) ;
+}
+
+
+# A helper rule to get the command to invoke some tool. If
+# 'user-provided-command' is not given, tries to find binary named 'tool' in
+# PATH and in the passed 'additional-path'. Otherwise, verifies that the first
+# element of 'user-provided-command' is an existing program.
+#
+# This rule returns the command to be used when invoking the tool. If we can not
+# find the tool, a warning is issued. If 'path-last' is specified, PATH is
+# checked after 'additional-paths' when searching for 'tool'.
+#
+rule get-invocation-command-nodefault ( toolset : tool :
+    user-provided-command * : additional-paths * : path-last ? )
+{
+    local command ;
+    if ! $(user-provided-command)
+    {
+        command = [ find-tool $(tool) : $(additional-paths) : $(path-last) ] ;
+        if ! $(command) && $(.debug-configuration)
+        {
+            ECHO "warning: toolset $(toolset) initialization: can not find tool $(tool)" ;
+            ECHO "warning: initialized from" [ errors.nearest-user-location ] ;
+        }
+    }
+    else
+    {
+        command = [ check-tool $(user-provided-command) ] ;
+        if ! $(command) && $(.debug-configuration)
+        {
+            ECHO "warning: toolset $(toolset) initialization: " ;
+            ECHO "warning: can not find user-provided command " '$(user-provided-command)' ;
+            ECHO "warning: initialized from" [ errors.nearest-user-location ] ;
+        }
+    }
+
+    return $(command) ;
+}
+
+
+# Same as get-invocation-command-nodefault, except that if no tool is found,
+# returns either the user-provided-command, if present, or the 'tool' parameter.
+#
+rule get-invocation-command ( toolset : tool : user-provided-command * :
+    additional-paths * : path-last ? )
+{
+    local result = [ get-invocation-command-nodefault $(toolset) : $(tool) :
+        $(user-provided-command) : $(additional-paths) : $(path-last) ] ;
+
+    if ! $(result)
+    {
+        if $(user-provided-command)
+        {
+            result = $(user-provided-command) ;
+        }
+        else
+        {
+            result = $(tool) ;
+        }
+    }
+    return $(result) ;
+}
+
+
+# Given an invocation command return the absolute path to the command. This
+# works even if command has no path element and was found on the PATH.
+#
+rule get-absolute-tool-path ( command )
+{
+    if $(command:D)
+    {
+        return $(command:D) ;
+    }
+    else
+    {
+        local m = [ GLOB [ modules.peek : PATH Path path ] : $(command) $(command).exe ] ;
+        return $(m[1]:D) ;
+    }
+}
+
+
+# Attempts to find tool (binary) named 'name' in PATH and in 'additional-paths'.
+# If found in PATH, returns 'name' and if found in additional paths, returns
+# absolute name. If the tool is found in several directories, returns the
+# first path found. Otherwise, returns an empty string. If 'path-last' is
+# specified, PATH is searched after 'additional-paths'.
+#
+local rule find-tool ( name : additional-paths * : path-last ? )
+{
+    local path = [ path.programs-path ] ;
+    local match = [ path.glob $(path) : $(name) $(name).exe ] ;
+    local additional-match = [ path.glob $(additional-paths) : $(name) $(name).exe ] ;
+
+    local result ;
+    if $(path-last)
+    {
+        result = $(additional-match) ;
+        if ! $(result) && $(match)
+        {
+            result = $(name) ;
+        }
+    }
+    else
+    {
+        if $(match)
+        {
+            result = $(name) ;
+        }
+        else
+        {
+            result = $(additional-match) ;
+        }
+    }
+    if $(result)
+    {
+        return [ path.native $(result[1]) ] ;
+    }
+}
+
+
+# Checks if 'command' can be found either in path or is a full name to an
+# existing file.
+#
+local rule check-tool-aux ( command )
+{
+    if $(command:D)
+    {
+        if [ path.exists $(command) ]
+            # Both NT and Cygwin will run .exe files by their unqualified names.
+            || ( [ os.on-windows ] && [ path.exists $(command).exe ] )
+            # Only NT will run .bat & .cmd files by their unqualified names.
+            || ( ( [ os.name ] = NT ) && ( [ path.exists $(command).bat ] ||
+                [ path.exists $(command).cmd ] ) )
+        {
+            return $(command) ;
+        }
+    }
+    else
+    {
+        if [ GLOB [ modules.peek : PATH Path path ] : $(command) ]
+        {
+            return $(command) ;
+        }
+    }
+}
+
+
+# Checks that a tool can be invoked by 'command'. If command is not an absolute
+# path, checks if it can be found in 'path'. If comand is an absolute path,
+# check that it exists. Returns 'command' if ok or empty string otherwise.
+#
+local rule check-tool ( xcommand + )
+{
+    if [ check-tool-aux $(xcommand[1]) ] ||
+       [ check-tool-aux $(xcommand[-1]) ]
+    {
+        return $(xcommand) ;
+    }
+}
+
+
+# Handle common options for toolset, specifically sets the following flag
+# variables:
+# - CONFIG_COMMAND to $(command)
+# - OPTIONS for compile         to the value of <compileflags> in $(options)
+# - OPTIONS for compile.c       to the value of <cflags>       in $(options)
+# - OPTIONS for compile.c++     to the value of <cxxflags>     in $(options)
+# - OPTIONS for compile.fortran to the value of <fflags>       in $(options)
+# - OPTIONS for link            to the value of <linkflags>    in $(options)
+#
+rule handle-options ( toolset : condition * : command * : options * )
+{
+    if $(.debug-configuration)
+    {
+        ECHO "notice: will use '$(command)' for $(toolset), condition $(condition:E=(empty))" ;
+    }
+
+    #   The last parameter ('unchecked') says it is OK to set flags for another
+    # module.
+    toolset.flags $(toolset) CONFIG_COMMAND $(condition) : $(command)
+        : unchecked ;
+
+    toolset.flags $(toolset).compile         OPTIONS $(condition) :
+        [ feature.get-values <compileflags> : $(options) ] : unchecked ;
+
+    toolset.flags $(toolset).compile.c       OPTIONS $(condition) :
+        [ feature.get-values <cflags>       : $(options) ] : unchecked ;
+
+    toolset.flags $(toolset).compile.c++     OPTIONS $(condition) :
+        [ feature.get-values <cxxflags>     : $(options) ] : unchecked ;
+
+    toolset.flags $(toolset).compile.fortran OPTIONS $(condition) :
+        [ feature.get-values <fflags>       : $(options) ] : unchecked ;
+
+    toolset.flags $(toolset).link            OPTIONS $(condition) :
+        [ feature.get-values <linkflags>    : $(options) ] : unchecked ;
+}
+
+
+# Returns the location of the "program files" directory on a Windows platform.
+#
+rule get-program-files-dir ( )
+{
+    local ProgramFiles = [ modules.peek : ProgramFiles ] ;
+    if $(ProgramFiles)
+    {
+        ProgramFiles = "$(ProgramFiles:J= )" ;
+    }
+    else
+    {
+        ProgramFiles = "c:\\Program Files" ;
+    }
+    return $(ProgramFiles) ;
+}
+
+
+if [ os.name ] = NT
+{
+    RM = del /f /q ;
+    CP = copy /b ;
+    IGNORE = "2>nul >nul & setlocal" ;
+    LN ?= $(CP) ;
+    # Ugly hack to convince copy to set the timestamp of the
+    # destination to the current time by concatenating the
+    # source with a nonexistent file.  Note that this requires
+    # /b (binary) as the default when concatenating files is /a (ascii).
+    WINDOWS-CP-HACK = "+ this-file-does-not-exist-A698EE7806899E69" ;
+}
+else
+{
+    RM = rm -f ;
+    CP = cp ;
+    LN = ln ;
+}
+
+
+rule rm-command ( )
+{
+    return $(RM) ;
+}
+
+
+rule copy-command ( )
+{
+    return $(CP) ;
+}
+
+
+if "\n" = "n" 
+{    
+    # Escape characters are not supported. Use ugly hacks that won't work,
+    # see below.
+    nl = "
+" ;
+    q = "" ;
+}
+else
+{
+    nl = "\n" ; 
+    q = "\"" ;
+}
+
+# Returns the command needed to set an environment variable on the current
+# platform. The variable setting persists through all following commands and is
+# visible in the environment seen by subsequently executed commands. In other
+# words, on Unix systems, the variable is exported, which is consistent with the
+# only possible behavior on Windows systems.
+#
+rule variable-setting-command ( variable : value )
+{
+    if [ os.name ] = NT
+    {
+        return "set $(variable)=$(value)$(nl)" ;
+    }
+    else
+    {
+        # If we don't have escape characters support in bjam, the below blows
+        # up on CYGWIN, since the $(nl) variable holds a Windows new-line \r\n 
+        # sequence that messes up the executed export command which then reports
+        # that the passed variable name is incorrect.
+        # But we have a check for cygwin in kernel/bootstrap.jam already.
+        return "$(variable)=$(q)$(value)$(q)$(nl)export $(variable)$(nl)" ;
+    }
+}
+
+
+# Returns a command to sets a named shell path variable to the given NATIVE
+# paths on the current platform.
+#
+rule path-variable-setting-command ( variable : paths * )
+{
+    local sep = [ os.path-separator ] ;
+    return [ variable-setting-command $(variable) : $(paths:J=$(sep)) ] ;
+}
+
+
+# Returns a command that prepends the given paths to the named path variable on
+# the current platform.
+#
+rule prepend-path-variable-command ( variable : paths * )
+{
+    return [ path-variable-setting-command $(variable)
+        : $(paths) [ os.expand-variable $(variable) ] ] ;
+}
+
+
+# Return a command which can create a file. If 'r' is result of invocation, then
+# 'r foobar' will create foobar with unspecified content. What happens if file
+# already exists is unspecified.
+#
+rule file-creation-command ( )
+{
+    if [ os.name ] = NT
+    {
+        # A few alternative implementations on Windows:
+        #
+        #   'type NUL >> '
+        #        That would construct an empty file instead of a file containing
+        #      a space and an end-of-line marker but it would also not change
+        #      the target's timestamp in case the file already exists.
+        #
+        #   'type NUL > '
+        #        That would construct an empty file instead of a file containing
+        #      a space and an end-of-line marker but it would also destroy an
+        #      already existing file by overwriting it with an empty one.
+        #
+        #   I guess the best solution would be to allow Boost Jam to define
+        # built-in functions such as 'create a file', 'touch a file' or 'copy a
+        # file' which could be used from inside action code. That would allow
+        # completely portable operations without this kind of kludge.
+        #                                            (22.02.2009.) (Jurko)
+        return "echo. > " ;
+    }
+    else
+    {
+        return "touch " ;
+    }
+}
+
+
+# Returns a command that may be used for 'touching' files. It is not a real
+# 'touch' command on NT because it adds an empty line at the end of file but it
+# works with source files.
+#
+rule file-touch-command ( )
+{
+    if [ os.name ] = NT
+    {
+        return "echo. >> " ;
+    }
+    else
+    {
+        return "touch " ;
+    }
+}
+
+
+rule MkDir
+{
+    # If dir exists, do not update it. Do this even for $(DOT).
+    NOUPDATE $(<) ;
+
+    if $(<) != $(DOT) && ! $($(<)-mkdir)
+    {
+        # Cheesy gate to prevent multiple invocations on same dir.
+        $(<)-mkdir = true ;
+
+        # Schedule the mkdir build action.
+        common.mkdir $(<) ;
+
+        # Prepare a Jam 'dirs' target that can be used to make the build only
+        # construct all the target directories.
+        DEPENDS dirs : $(<) ;
+
+        # Recursively create parent directories. $(<:P) = $(<)'s parent & we
+        # recurse until root.
+
+        local s = $(<:P) ;
+        if [ os.name ] = NT
+        {
+            switch $(s)
+            {
+                case *:   : s = ;
+                case *:\\ : s = ;
+            }
+        }
+
+        if $(s)
+        {
+            if $(s) != $(<)
+            {
+                DEPENDS $(<) : $(s) ;
+                MkDir $(s) ;
+            }
+            else
+            {
+                NOTFILE $(s) ;
+            }
+        }
+    }
+}
+
+
+#actions MkDir1
+#{
+#    mkdir "$(<)"
+#}
+
+#   The following quick-fix actions should be replaced using the original MkDir1
+# action once Boost Jam gets updated to correctly detect different paths leading
+# up to the same filesystem target and triggers their build action only once.
+#                                             (todo) (04.07.2008.) (Jurko)
+
+if [ os.name ] = NT
+{
+    actions mkdir
+    {
+        if not exist "$(<)\\" mkdir "$(<)"
+    }
+}
+else
+{
+    actions mkdir
+    {
+        mkdir -p "$(<)"
+    }
+}
+
+actions piecemeal together existing Clean
+{
+    $(RM) "$(>)"
+}
+
+
+rule copy
+{
+}
+
+
+actions copy
+{
+    $(CP) "$(>)" $(WINDOWS-CP-HACK) "$(<)"
+}
+
+
+rule RmTemps
+{
+}
+
+
+actions quietly updated piecemeal together RmTemps
+{
+    $(RM) "$(>)" $(IGNORE)
+}
+
+
+actions hard-link
+{
+    $(RM) "$(<)" 2$(NULL_OUT) $(NULL_OUT)
+    $(LN) "$(>)" "$(<)" $(NULL_OUT)
+}
+
+
+# Given a target, as given to a custom tag rule, returns a string formatted
+# according to the passed format. Format is a list of properties that is
+# represented in the result. For each element of format the corresponding target
+# information is obtained and added to the result string. For all, but the
+# literal, the format value is taken as the as string to prepend to the output
+# to join the item to the rest of the result. If not given "-" is used as a
+# joiner.
+#
+# The format options can be:
+#
+#   <base>[joiner]
+#       ::  The basename of the target name.
+#   <toolset>[joiner]
+#       ::  The abbreviated toolset tag being used to build the target.
+#   <threading>[joiner]
+#       ::  Indication of a multi-threaded build.
+#   <runtime>[joiner]
+#       ::  Collective tag of the build runtime.
+#   <version:/version-feature | X.Y[.Z]/>[joiner]
+#       ::  Short version tag taken from the given "version-feature" in the
+#           build properties. Or if not present, the literal value as the
+#           version number.
+#   <property:/property-name/>[joiner]
+#       ::  Direct lookup of the given property-name value in the build
+#           properties. /property-name/ is a regular expression. E.g.
+#           <property:toolset-.*:flavor> will match every toolset.
+#   /otherwise/
+#       ::  The literal value of the format argument.
+#
+# For example this format:
+#
+#   boost_ <base> <toolset> <threading> <runtime> <version:boost-version>
+#
+# Might return:
+#
+#   boost_thread-vc80-mt-gd-1_33.dll, or
+#   boost_regex-vc80-gd-1_33.dll
+#
+# The returned name also has the target type specific prefix and suffix which
+# puts it in a ready form to use as the value from a custom tag rule.
+#
+rule format-name ( format * : name : type ? : property-set )
+{
+    local result = "" ;
+    for local f in $(format)
+    {
+        switch $(f:G)
+        {
+            case <base> :
+                local matched = [ MATCH "^(boost.*python)-.*" : $(name) ] ;
+                if $(matched) = boost_python || $(matched) = boost_mpi_python
+                {
+                    result += $(name) ;
+                }
+                else
+                {
+                    result += $(name:B) ;
+                }
+            
+            case <toolset> :
+                result += [ join-tag $(f:G=) : [ toolset-tag $(name) : $(type) :
+                $(property-set) ] ] ;
+            
+            case <threading> :
+                result += [ join-tag $(f:G=) : [ threading-tag $(name) : $(type)
+                : $(property-set) ] ] ;
+            
+            case <runtime> :
+                result += [ join-tag $(f:G=) : [ runtime-tag $(name) : $(type) :
+                $(property-set) ] ] ;
+            
+            case <qt> :
+            result += [ join-tag $(f:G=) : [ qt-tag $(name) : $(type) :
+                $(property-set) ] ] ;
+
+            case <address-model> :
+            result += [ join-tag $(f:G=) : [ address-model-tag $(name) : $(type) :
+                $(property-set) ] ] ;
+
+            case <version:*> :
+                local key = [ MATCH <version:(.*)> : $(f:G) ] ;
+                local version = [ $(property-set).get <$(key)> ] ;
+                version ?= $(key) ;
+                version = [ MATCH "^([^.]+)[.]([^.]+)[.]?([^.]*)" : $(version) ] ;
+                result += [ join-tag $(f:G=) : $(version[1])_$(version[2]) ] ;
+
+            case <property:*> :
+                local key = [ MATCH <property:(.*)> : $(f:G) ] ;
+                local p0 = [ MATCH <($(key))> : [ $(property-set).raw ] ] ;
+                if $(p0)
+                {
+                    local p = [ $(property-set).get <$(p0)> ] ;
+                    if $(p)
+                    {
+                        result += [ join-tag $(f:G=) : $(p) ] ;
+                    }
+                }
+
+            case * :
+                result += $(f:G=) ;
+        }
+    }
+    result = [ virtual-target.add-prefix-and-suffix $(result:J=) : $(type) :
+      $(property-set) ] ;
+    return $(result) ;
+}
+
+
+local rule join-tag ( joiner ? : tag ? )
+{
+    if ! $(joiner) { joiner = - ; }
+    return $(joiner)$(tag) ;
+}
+
+
+local rule toolset-tag ( name : type ? : property-set )
+{
+    local tag = ;
+
+    local properties = [ $(property-set).raw ] ;
+    switch [ $(property-set).get <toolset> ]
+    {
+        case borland* : tag += bcb ;
+        case clang* :
+        {
+            switch [ $(property-set).get <toolset-clang:platform> ]
+            {
+               case darwin : tag += clang-darwin ;
+               case linux  : tag += clang ;
+            }
+        }
+        case como* : tag += como ;
+        case cw : tag += cw ;
+        case darwin* : tag += xgcc ;
+        case edg* : tag += edg ;
+        case gcc* :
+        {
+            switch [ $(property-set).get <toolset-gcc:flavor> ]
+            {
+                case *mingw* : tag += mgw ;
+                case * : tag += gcc ;
+            }
+        }
+        case intel :
+        if [ $(property-set).get <toolset-intel:platform> ] = win
+        {
+            tag += iw ;
+        }
+        else
+        {
+            tag += il ;
+        }
+        case kcc* : tag += kcc ;
+        case kylix* : tag += bck ;
+        #case metrowerks* : tag += cw ;
+        #case mingw* : tag += mgw ;
+        case mipspro* : tag += mp ;
+        case msvc* : tag += vc ;
+        case qcc* : tag += qcc ;
+        case sun* : tag += sw ;
+        case tru64cxx* : tag += tru ;
+        case vacpp* : tag += xlc ;
+    }
+    local version = [ MATCH "<toolset.*version>([0123456789]+)[.]([0123456789]*)"
+        : $(properties) ] ;
+    # For historical reasons, vc6.0 and vc7.0 use different naming.
+    if $(tag) = vc
+    {
+        if $(version[1]) = 6
+        {
+            # Cancel minor version.
+            version = 6 ;
+        }
+        else if $(version[1]) = 7 && $(version[2]) = 0
+        {
+            version = 7 ;
+        }
+    }
+    # On intel, version is not added, because it does not matter and it is the
+    # version of vc used as backend that matters. Ideally, we should encode the
+    # backend version but that would break compatibility with V1.
+    if $(tag) = iw
+    {
+        version = ;
+    }
+
+    # On borland, version is not added for compatibility with V1.
+    if $(tag) = bcb
+    {
+        version = ;
+    }
+
+    tag += $(version) ;
+
+    return $(tag:J=) ;
+}
+
+
+local rule threading-tag ( name : type ? : property-set )
+{
+    local tag = ;
+    local properties = [ $(property-set).raw ] ;
+    if <threading>multi in $(properties) { tag = mt ; }
+
+    return $(tag:J=) ;
+}
+
+
+local rule runtime-tag ( name : type ? : property-set )
+{
+    local tag = ;
+
+    local properties = [ $(property-set).raw ] ;
+    if <runtime-link>static in $(properties) { tag += s ; }
+
+    # This is an ugly thing. In V1, there is code to automatically detect which
+    # properties affect a target. So, if <runtime-debugging> does not affect gcc
+    # toolset, the tag rules will not even see <runtime-debugging>. Similar
+    # functionality in V2 is not implemented yet, so we just check for toolsets
+    # known to care about runtime debugging.
+    if ( <toolset>msvc in $(properties) ) ||
+        ( <stdlib>stlport in $(properties) ) ||
+        ( <toolset-intel:platform>win in $(properties) )
+    {
+        if <runtime-debugging>on in $(properties) { tag += g ; }
+    }
+
+    if <python-debugging>on in $(properties) { tag += y ; }
+    if <variant>debug in $(properties) { tag += d ; }
+    if <stdlib>stlport in $(properties) { tag += p ; }
+    if <stdlib-stlport:iostream>hostios in $(properties) { tag += n ; }
+
+    return $(tag:J=) ;
+}
+
+# Create a tag for the Qt library version
+# "<qt>4.6.0" will result in tag "qt460"
+local rule qt-tag ( name : type ? : property-set )
+{
+    local properties = [ $(property-set).get <qt> ] ;
+    local version = [ MATCH "([0123456789]+)[.]?([0123456789]*)[.]?([0123456789]*)"
+        : $(properties) ] ;
+    local tag = "qt"$(version:J=) ;
+    return $(tag) ;
+}
+
+# Create a tag for the address-model
+# <address-model>64 will simply generate "64"
+local rule address-model-tag ( name : type ? : property-set )
+{
+    local tag = ;
+    local version = [ $(property-set).get <address-model> ] ;
+    return $(version) ;
+}
+
+rule __test__ ( )
+{
+    import assert ;
+
+    local nl = "
+" ;
+
+    local save-os = [ modules.peek os : .name ] ;
+
+    modules.poke os : .name : LINUX ;
+
+    assert.result "PATH=\"foo:bar:baz\"$(nl)export PATH$(nl)"
+        : path-variable-setting-command PATH : foo bar baz ;
+
+    assert.result "PATH=\"foo:bar:$PATH\"$(nl)export PATH$(nl)"
+        : prepend-path-variable-command PATH : foo bar ;
+
+    modules.poke os : .name : NT ;
+
+    assert.result "set PATH=foo;bar;baz$(nl)"
+        : path-variable-setting-command PATH : foo bar baz ;
+
+    assert.result "set PATH=foo;bar;%PATH%$(nl)"
+        : prepend-path-variable-command PATH : foo bar ;
+
+    modules.poke os : .name : $(save-os) ;
+}
diff --git a/jam-files/boost-build/tools/common.py b/jam-files/boost-build/tools/common.py
new file mode 100644
index 00000000..612745b8
--- /dev/null
+++ b/jam-files/boost-build/tools/common.py
@@ -0,0 +1,840 @@
+#  Status: being ported by Steven Watanabe
+#  Base revision: 47174
+#
+#  Copyright (C) Vladimir Prus 2002. Permission to copy, use, modify, sell and
+#  distribute this software is granted provided this copyright notice appears in
+#  all copies. This software is provided "as is" without express or implied
+#  warranty, and with no claim as to its suitability for any purpose.
+
+""" Provides actions common to all toolsets, such as creating directories and
+    removing files.
+"""
+
+import re
+import bjam
+import os
+import os.path
+import sys
+
+from b2.build import feature
+from b2.util.utility import *
+from b2.util import path
+
+__re__before_first_dash = re.compile ('([^-]*)-')
+
+def reset ():
+    """ Clear the module state. This is mainly for testing purposes.
+        Note that this must be called _after_ resetting the module 'feature'.
+    """    
+    global __had_unspecified_value, __had_value, __declared_subfeature
+    global __init_loc
+    global __all_signatures, __debug_configuration, __show_configuration
+    
+    # Stores toolsets without specified initialization values.
+    __had_unspecified_value = {}
+
+    # Stores toolsets with specified initialization values.
+    __had_value = {}
+    
+    # Stores toolsets with declared subfeatures.
+    __declared_subfeature = {}
+    
+    # Stores all signatures of the toolsets.
+    __all_signatures = {}
+
+    # Stores the initialization locations of each toolset
+    __init_loc = {}
+
+    __debug_configuration = '--debug-configuration' in bjam.variable('ARGV')
+    __show_configuration = '--show-configuration' in bjam.variable('ARGV')
+
+    global __executable_path_variable
+    OS = bjam.call("peek", [], "OS")[0]
+    if OS == "NT":
+        # On Windows the case and capitalization of PATH is not always predictable, so
+        # let's find out what variable name was really set.
+        for n in sys.environ:
+            if n.lower() == "path":
+                __executable_path_variable = n
+                break
+    else:
+        __executable_path_variable = "PATH"
+
+    m = {"NT": __executable_path_variable,
+         "CYGWIN": "PATH",
+         "MACOSX": "DYLD_LIBRARY_PATH",
+         "AIX": "LIBPATH"}
+    global __shared_library_path_variable
+    __shared_library_path_variable = m.get(OS, "LD_LIBRARY_PATH")
+                            
+reset()
+
+def shared_library_path_variable():
+    return __shared_library_path_variable
+
+# ported from trunk@47174
+class Configurations(object):
+    """
+        This class helps to manage toolset configurations. Each configuration
+        has a unique ID and one or more parameters. A typical example of a unique ID
+        is a condition generated by 'common.check-init-parameters' rule. Other kinds
+        of IDs can be used. Parameters may include any details about the configuration
+        like 'command', 'path', etc.
+
+        A toolset configuration may be in one of the following states:
+
+        - registered
+              Configuration has been registered (e.g. by autodetection code) but has
+              not yet been marked as used, i.e. 'toolset.using' rule has not yet been
+              called for it.
+          - used
+              Once called 'toolset.using' rule marks the configuration as 'used'.
+
+        The main difference between the states above is that while a configuration is
+        'registered' its options can be freely changed. This is useful in particular
+        for autodetection code - all detected configurations may be safely overwritten
+        by user code.
+    """
+
+    def __init__(self):
+        self.used_ = set()
+        self.all_ = set()
+        self.params = {}
+
+    def register(self, id):
+        """
+            Registers a configuration.
+
+            Returns True if the configuration has been added and False if
+            it already exists. Reports an error if the configuration is 'used'.
+        """
+        if id in self.used_:
+            #FIXME
+            errors.error("common: the configuration '$(id)' is in use")
+
+        if id not in self.all_:
+            self.all_ += [id]
+
+            # Indicate that a new configuration has been added.
+            return True
+        else:
+            return False
+
+    def use(self, id):
+        """
+            Mark a configuration as 'used'.
+
+            Returns True if the state of the configuration has been changed to
+            'used' and False if it the state wasn't changed. Reports an error
+            if the configuration isn't known.
+        """
+        if id not in self.all_:
+            #FIXME:
+            errors.error("common: the configuration '$(id)' is not known")
+
+        if id not in self.used_:
+            self.used_ += [id]
+
+            # indicate that the configuration has been marked as 'used'
+            return True
+        else:
+            return False
+
+    def all(self):
+        """ Return all registered configurations. """
+        return self.all_
+
+    def used(self):
+        """ Return all used configurations. """
+        return self.used_
+
+    def get(self, id, param):
+        """ Returns the value of a configuration parameter. """
+        self.params_.getdefault(param, {}).getdefault(id, None)
+
+    def set (self, id, param, value):
+        """ Sets the value of a configuration parameter. """
+        self.params_.setdefault(param, {})[id] = value
+
+# Ported from trunk@47174
+def check_init_parameters(toolset, requirement, *args):
+    """ The rule for checking toolset parameters. Trailing parameters should all be
+        parameter name/value pairs. The rule will check that each parameter either has
+        a value in each invocation or has no value in each invocation. Also, the rule
+        will check that the combination of all parameter values is unique in all
+        invocations.
+
+        Each parameter name corresponds to a subfeature. This rule will declare a
+        subfeature the first time a non-empty parameter value is passed and will
+        extend it with all the values.
+
+        The return value from this rule is a condition to be used for flags settings.
+    """
+    # The type checking here is my best guess about
+    # what the types should be.
+    assert(isinstance(toolset, str))
+    assert(isinstance(requirement, str) or requirement is None)
+    sig = toolset
+    condition = replace_grist(toolset, '<toolset>')
+    subcondition = []
+    
+    for arg in args:
+        assert(isinstance(arg, tuple))
+        assert(len(arg) == 2)
+        name = arg[0]
+        value = arg[1]
+        assert(isinstance(name, str))
+        assert(isinstance(value, str) or value is None)
+        
+        str_toolset_name = str((toolset, name))
+
+        # FIXME: is this the correct translation?
+        ### if $(value)-is-not-empty
+        if value is not None:
+            condition = condition + '-' + value
+            if __had_unspecified_value.has_key(str_toolset_name):
+                raise BaseException("'%s' initialization: parameter '%s' inconsistent\n" \
+                "no value was specified in earlier initialization\n" \
+                "an explicit value is specified now" % (toolset, name))
+
+            # The logic below is for intel compiler. It calls this rule
+            # with 'intel-linux' and 'intel-win' as toolset, so we need to
+            # get the base part of toolset name.
+            # We can't pass 'intel' as toolset, because it that case it will
+            # be impossible to register versionles intel-linux and
+            # intel-win of specific version.
+            t = toolset
+            m = __re__before_first_dash.match(toolset)
+            if m:
+                t = m.group(1)
+
+            if not __had_value.has_key(str_toolset_name):
+                if not __declared_subfeature.has_key(str((t, name))):
+                    feature.subfeature('toolset', t, name, [], ['propagated'])
+                    __declared_subfeature[str((t, name))] = True
+
+                __had_value[str_toolset_name] = True
+
+            feature.extend_subfeature('toolset', t, name, [value])
+            subcondition += ['<toolset-' + t + ':' + name + '>' + value ]
+
+        else:
+            if __had_value.has_key(str_toolset_name):
+                raise BaseException ("'%s' initialization: parameter '%s' inconsistent\n" \
+                "an explicit value was specified in an earlier initialization\n" \
+                "no value is specified now" % (toolset, name))
+
+            __had_unspecified_value[str_toolset_name] = True
+
+        if value == None: value = ''
+        
+        sig = sig + value + '-'
+
+    if __all_signatures.has_key(sig):
+        message = "duplicate initialization of '%s' with the following parameters: " % toolset
+        
+        for arg in args:
+            name = arg[0]
+            value = arg[1]
+            if value == None: value = '<unspecified>'
+            
+            message += "'%s' = '%s'\n" % (name, value)
+
+        raise BaseException(message)
+
+    __all_signatures[sig] = True
+    # FIXME
+    __init_loc[sig] = "User location unknown" #[ errors.nearest-user-location ] ;
+
+    # If we have a requirement, this version should only be applied under that
+    # condition. To accomplish this we add a toolset requirement that imposes
+    # the toolset subcondition, which encodes the version.
+    if requirement:
+        r = ['<toolset>' + toolset, requirement]
+        r = ','.join(r)
+        toolset.add_requirements([r + ':' + c for c in subcondition])
+
+    # We add the requirements, if any, to the condition to scope the toolset
+    # variables and options to this specific version.
+    condition = [condition]
+    if requirement:
+        condition += [requirement]
+
+    if __show_configuration:
+        print "notice:", condition
+    return ['/'.join(condition)]
+
+# Ported from trunk@47077
+def get_invocation_command_nodefault(
+    toolset, tool, user_provided_command=[], additional_paths=[], path_last=False):
+    """
+        A helper rule to get the command to invoke some tool. If
+        'user-provided-command' is not given, tries to find binary named 'tool' in
+        PATH and in the passed 'additional-path'. Otherwise, verifies that the first
+        element of 'user-provided-command' is an existing program.
+        
+        This rule returns the command to be used when invoking the tool. If we can't
+        find the tool, a warning is issued. If 'path-last' is specified, PATH is
+        checked after 'additional-paths' when searching for 'tool'.
+    """
+    assert(isinstance(toolset, str))
+    assert(isinstance(tool, str))
+    assert(isinstance(user_provided_command, list))
+    if additional_paths is not None:
+        assert(isinstance(additional_paths, list))
+        assert(all([isinstance(path, str) for path in additional_paths]))
+    assert(all(isinstance(path, str) for path in additional_paths))
+    assert(isinstance(path_last, bool))
+    
+    if not user_provided_command:
+        command = find_tool(tool, additional_paths, path_last) 
+        if not command and __debug_configuration:
+            print "warning: toolset", toolset, "initialization: can't find tool, tool"
+            #FIXME
+            #print "warning: initialized from" [ errors.nearest-user-location ] ;
+    else:
+        command = check_tool(user_provided_command)
+        if not command and __debug_configuration:
+            print "warning: toolset", toolset, "initialization:"
+            print "warning: can't find user-provided command", user_provided_command
+            #FIXME
+            #ECHO "warning: initialized from" [ errors.nearest-user-location ]
+
+    assert(isinstance(command, str))
+    
+    return command
+
+# ported from trunk@47174
+def get_invocation_command(toolset, tool, user_provided_command = [],
+                           additional_paths = [], path_last = False):
+    """ Same as get_invocation_command_nodefault, except that if no tool is found,
+        returns either the user-provided-command, if present, or the 'tool' parameter.
+    """
+
+    assert(isinstance(toolset, str))
+    assert(isinstance(tool, str))
+    assert(isinstance(user_provided_command, list))
+    if additional_paths is not None:
+        assert(isinstance(additional_paths, list))
+        assert(all([isinstance(path, str) for path in additional_paths]))
+    assert(isinstance(path_last, bool))
+
+    result = get_invocation_command_nodefault(toolset, tool,
+                                              user_provided_command,
+                                              additional_paths,
+                                              path_last)
+
+    if not result:
+        if user_provided_command:
+            result = user_provided_command[0]
+        else:
+            result = tool
+
+    assert(isinstance(result, str))
+    
+    return result
+
+# ported from trunk@47281
+def get_absolute_tool_path(command):
+    """
+        Given an invocation command,
+        return the absolute path to the command. This works even if commnad
+        has not path element and is present in PATH.
+    """
+    if os.path.dirname(command):
+        return os.path.dirname(command)
+    else:
+        programs = path.programs_path()
+        m = path.glob(programs, [command, command + '.exe' ])
+        if not len(m):
+            print "Could not find:", command, "in", programs
+        return os.path.dirname(m[0])
+
+# ported from trunk@47174
+def find_tool(name, additional_paths = [], path_last = False):
+    """ Attempts to find tool (binary) named 'name' in PATH and in
+        'additional-paths'.  If found in path, returns 'name'.  If
+        found in additional paths, returns full name.  If the tool
+        is found in several directories, returns the first path found.
+        Otherwise, returns the empty string.  If 'path_last' is specified,
+        path is checked after 'additional_paths'.
+    """
+    assert(isinstance(name, str))
+    assert(isinstance(additional_paths, list))
+    assert(isinstance(path_last, bool))
+
+    programs = path.programs_path()
+    match = path.glob(programs, [name, name + '.exe'])
+    additional_match = path.glob(additional_paths, [name, name + '.exe'])
+
+    result = []
+    if path_last:
+        result = additional_match
+        if not result and match:
+            result = match
+
+    else:
+        if match:
+            result = match
+
+        elif additional_match:
+            result = additional_match
+
+    if result:
+        return path.native(result[0])
+    else:
+        return ''
+
+#ported from trunk@47281
+def check_tool_aux(command):
+    """ Checks if 'command' can be found either in path
+        or is a full name to an existing file.
+    """
+    assert(isinstance(command, str))
+    dirname = os.path.dirname(command)
+    if dirname:
+        if os.path.exists(command):
+            return command
+        # Both NT and Cygwin will run .exe files by their unqualified names.
+        elif on_windows() and os.path.exists(command + '.exe'):
+            return command
+        # Only NT will run .bat files by their unqualified names.
+        elif os_name() == 'NT' and os.path.exists(command + '.bat'):
+            return command
+    else:
+        paths = path.programs_path()
+        if path.glob(paths, [command]):
+            return command
+
+# ported from trunk@47281
+def check_tool(command):
+    """ Checks that a tool can be invoked by 'command'. 
+        If command is not an absolute path, checks if it can be found in 'path'.
+        If comand is absolute path, check that it exists. Returns 'command'
+        if ok and empty string otherwise.
+    """
+    assert(isinstance(command, list))
+    assert(all(isinstance(c, str) for c in command))
+    #FIXME: why do we check the first and last elements????
+    if check_tool_aux(command[0]) or check_tool_aux(command[-1]):
+        return command
+
+# ported from trunk@47281
+def handle_options(tool, condition, command, options):
+    """ Handle common options for toolset, specifically sets the following
+        flag variables:
+        - CONFIG_COMMAND to 'command'
+        - OPTIOns for compile to the value of <compileflags> in options
+        - OPTIONS for compile.c to the value of <cflags> in options
+        - OPTIONS for compile.c++ to the value of <cxxflags> in options
+        - OPTIONS for compile.fortran to the value of <fflags> in options
+        - OPTIONs for link to the value of <linkflags> in options
+    """
+    from b2.build import toolset
+
+    assert(isinstance(tool, str))
+    assert(isinstance(condition, list))
+    assert(isinstance(command, str))
+    assert(isinstance(options, list))
+    assert(command)
+    toolset.flags(tool, 'CONFIG_COMMAND', condition, [command])
+    toolset.flags(tool + '.compile', 'OPTIONS', condition, feature.get_values('<compileflags>', options))
+    toolset.flags(tool + '.compile.c', 'OPTIONS', condition, feature.get_values('<cflags>', options))
+    toolset.flags(tool + '.compile.c++', 'OPTIONS', condition, feature.get_values('<cxxflags>', options))
+    toolset.flags(tool + '.compile.fortran', 'OPTIONS', condition, feature.get_values('<fflags>', options))
+    toolset.flags(tool + '.link', 'OPTIONS', condition, feature.get_values('<linkflags>', options))
+
+# ported from trunk@47281
+def get_program_files_dir():
+    """ returns the location of the "program files" directory on a windows
+        platform
+    """
+    ProgramFiles = bjam.variable("ProgramFiles")
+    if ProgramFiles:
+        ProgramFiles = ' '.join(ProgramFiles)
+    else:
+        ProgramFiles = "c:\\Program Files"
+    return ProgramFiles
+
+# ported from trunk@47281
+def rm_command():
+    return __RM
+
+# ported from trunk@47281
+def copy_command():
+    return __CP
+
+# ported from trunk@47281
+def variable_setting_command(variable, value):
+    """
+        Returns the command needed to set an environment variable on the current
+        platform. The variable setting persists through all following commands and is
+        visible in the environment seen by subsequently executed commands. In other
+        words, on Unix systems, the variable is exported, which is consistent with the
+        only possible behavior on Windows systems.
+    """
+    assert(isinstance(variable, str))
+    assert(isinstance(value, str))
+
+    if os_name() == 'NT':
+        return "set " + variable + "=" + value + os.linesep
+    else:
+        # (todo)
+        #   The following does not work on CYGWIN and needs to be fixed. On
+        # CYGWIN the $(nl) variable holds a Windows new-line \r\n sequence that
+        # messes up the executed export command which then reports that the
+        # passed variable name is incorrect. This is most likely due to the
+        # extra \r character getting interpreted as a part of the variable name.
+        #
+        #   Several ideas pop to mind on how to fix this:
+        #     * One way would be to separate the commands using the ; shell
+        #       command separator. This seems like the quickest possible
+        #       solution but I do not know whether this would break code on any
+        #       platforms I I have no access to.
+        #     * Another would be to not use the terminating $(nl) but that would
+        #       require updating all the using code so it does not simply
+        #       prepend this variable to its own commands.
+        #     * I guess the cleanest solution would be to update Boost Jam to
+        #       allow explicitly specifying \n & \r characters in its scripts
+        #       instead of always relying only on the 'current OS native newline
+        #       sequence'.
+        #
+        #   Some code found to depend on this behaviour:
+        #     * This Boost Build module.
+        #         * __test__ rule.
+        #         * path-variable-setting-command rule.
+        #     * python.jam toolset.
+        #     * xsltproc.jam toolset.
+        #     * fop.jam toolset.
+        #                                     (todo) (07.07.2008.) (Jurko)
+        #
+        # I think that this works correctly in python -- Steven Watanabe
+        return variable + "=" + value + os.linesep + "export " + variable + os.linesep
+
+def path_variable_setting_command(variable, paths):
+    """
+        Returns a command to sets a named shell path variable to the given NATIVE
+        paths on the current platform.
+    """
+    assert(isinstance(variable, str))
+    assert(isinstance(paths, list))
+    sep = os.path.pathsep
+    return variable_setting_command(variable, sep.join(paths))
+
+def prepend_path_variable_command(variable, paths):
+    """
+        Returns a command that prepends the given paths to the named path variable on
+        the current platform.
+    """    
+    return path_variable_setting_command(variable,
+        paths + os.environ.get(variable, "").split(os.pathsep))
+
+def file_creation_command():
+    """
+        Return a command which can create a file. If 'r' is result of invocation, then
+        'r foobar' will create foobar with unspecified content. What happens if file
+        already exists is unspecified.
+    """
+    if os_name() == 'NT':
+        return "echo. > "
+    else:
+        return "touch "
+
+#FIXME: global variable
+__mkdir_set = set()
+__re_windows_drive = re.compile(r'^.*:\$')
+
+def mkdir(engine, target):
+    # If dir exists, do not update it. Do this even for $(DOT).
+    bjam.call('NOUPDATE', target)
+
+    global __mkdir_set
+
+    # FIXME: Where is DOT defined?
+    #if $(<) != $(DOT) && ! $($(<)-mkdir):
+    if target != '.' and target not in __mkdir_set:
+        # Cheesy gate to prevent multiple invocations on same dir.
+        __mkdir_set.add(target)
+
+        # Schedule the mkdir build action.
+        if os_name() == 'NT':
+            engine.set_update_action("common.MkDir1-quick-fix-for-windows", target, [])
+        else:
+            engine.set_update_action("common.MkDir1-quick-fix-for-unix", target, [])
+
+        # Prepare a Jam 'dirs' target that can be used to make the build only
+        # construct all the target directories.
+        engine.add_dependency('dirs', target)
+
+        # Recursively create parent directories. $(<:P) = $(<)'s parent & we
+        # recurse until root.
+
+        s = os.path.dirname(target)
+        if os_name() == 'NT':
+            if(__re_windows_drive.match(s)):
+                s = ''
+                
+        if s:
+            if s != target:
+                engine.add_dependency(target, s)
+                mkdir(engine, s)
+            else:
+                bjam.call('NOTFILE', s)
+
+__re_version = re.compile(r'^([^.]+)[.]([^.]+)[.]?([^.]*)')
+
+def format_name(format, name, target_type, prop_set):
+    """ Given a target, as given to a custom tag rule, returns a string formatted
+        according to the passed format. Format is a list of properties that is
+        represented in the result. For each element of format the corresponding target
+        information is obtained and added to the result string. For all, but the
+        literal, the format value is taken as the as string to prepend to the output
+        to join the item to the rest of the result. If not given "-" is used as a
+        joiner.
+
+        The format options can be:
+
+          <base>[joiner]
+              ::  The basename of the target name.
+          <toolset>[joiner]
+              ::  The abbreviated toolset tag being used to build the target.
+          <threading>[joiner]
+              ::  Indication of a multi-threaded build.
+          <runtime>[joiner]
+              ::  Collective tag of the build runtime.
+          <version:/version-feature | X.Y[.Z]/>[joiner]
+              ::  Short version tag taken from the given "version-feature"
+                  in the build properties. Or if not present, the literal
+                  value as the version number.
+          <property:/property-name/>[joiner]
+              ::  Direct lookup of the given property-name value in the
+                  build properties. /property-name/ is a regular expression.
+                  e.g. <property:toolset-.*:flavor> will match every toolset.
+          /otherwise/
+              ::  The literal value of the format argument.
+
+        For example this format:
+
+          boost_ <base> <toolset> <threading> <runtime> <version:boost-version>
+
+        Might return:
+
+          boost_thread-vc80-mt-gd-1_33.dll, or
+          boost_regex-vc80-gd-1_33.dll
+
+        The returned name also has the target type specific prefix and suffix which
+        puts it in a ready form to use as the value from a custom tag rule.
+    """
+    assert(isinstance(format, list))
+    assert(isinstance(name, str))
+    assert(isinstance(target_type, str) or not type)
+    # assert(isinstance(prop_set, property_set.PropertySet))
+    if type.is_derived(target_type, 'LIB'):
+        result = "" ;
+        for f in format:
+            grist = get_grist(f)
+            if grist == '<base>':
+                result += os.path.basename(name)
+            elif grist == '<toolset>':
+                result += join_tag(ungrist(f), 
+                    toolset_tag(name, target_type, prop_set))
+            elif grist == '<threading>':
+                result += join_tag(ungrist(f),
+                    threading_tag(name, target_type, prop_set))
+            elif grist == '<runtime>':
+                result += join_tag(ungrist(f),
+                    runtime_tag(name, target_type, prop_set))
+            elif grist.startswith('<version:'):
+                key = grist[len('<version:'):-1]
+                version = prop_set.get('<' + key + '>')
+                if not version:
+                    version = key
+                version = __re_version.match(version)
+                result += join_tag(ungrist(f), version[1] + '_' + version[2])
+            elif grist.startswith('<property:'):
+                key = grist[len('<property:'):-1]
+                property_re = re.compile('<(' + key + ')>')
+                p0 = None
+                for prop in prop_set.raw():
+                    match = property_re.match(prop)
+                    if match:
+                        p0 = match[1]
+                        break
+                if p0:
+                    p = prop_set.get('<' + p0 + '>')
+                    if p:
+                        assert(len(p) == 1)
+                        result += join_tag(ungrist(f), p)
+            else:
+                result += ungrist(f)
+
+        result = virtual_target.add_prefix_and_suffix(
+            ''.join(result), target_type, prop_set)
+        return result
+
+def join_tag(joiner, tag):
+    if not joiner: joiner = '-'
+    return joiner + tag
+
+__re_toolset_version = re.compile(r"<toolset.*version>(\d+)[.](\d*)")
+
+def toolset_tag(name, target_type, prop_set):
+    tag = ''
+
+    properties = prop_set.raw()
+    tools = prop_set.get('<toolset>')
+    assert(len(tools) == 0)
+    tools = tools[0]
+    if tools.startswith('borland'): tag += 'bcb'
+    elif tools.startswith('como'): tag += 'como'
+    elif tools.startswith('cw'): tag += 'cw'
+    elif tools.startswith('darwin'): tag += 'xgcc'
+    elif tools.startswith('edg'): tag += edg
+    elif tools.startswith('gcc'):
+        flavor = prop_set.get('<toolset-gcc:flavor>')
+        ''.find
+        if flavor.find('mingw') != -1:
+            tag += 'mgw'
+        else:
+            tag += 'gcc'
+    elif tools == 'intel':
+        if prop_set.get('<toolset-intel:platform>') == ['win']:
+            tag += 'iw'
+        else:
+            tag += 'il'
+    elif tools.startswith('kcc'): tag += 'kcc'
+    elif tools.startswith('kylix'): tag += 'bck'
+    #case metrowerks* : tag += cw ;
+    #case mingw* : tag += mgw ;
+    elif tools.startswith('mipspro'): tag += 'mp'
+    elif tools.startswith('msvc'): tag += 'vc'
+    elif tools.startswith('sun'): tag += 'sw'
+    elif tools.startswith('tru64cxx'): tag += 'tru'
+    elif tools.startswith('vacpp'): tag += 'xlc'
+
+    for prop in properties:
+        match = __re_toolset_version.match(prop)
+        if(match):
+            version = match
+            break
+    version_string = None
+    # For historical reasons, vc6.0 and vc7.0 use different naming.
+    if tag == 'vc':
+        if version.group(1) == '6':
+            # Cancel minor version.
+            version_string = '6'
+        elif version.group(1) == '7' and version.group(2) == '0':
+            version_string = '7'
+
+    # On intel, version is not added, because it does not matter and it's the
+    # version of vc used as backend that matters. Ideally, we'd encode the
+    # backend version but that would break compatibility with V1.
+    elif tag == 'iw':
+        version_string = ''
+
+    # On borland, version is not added for compatibility with V1.
+    elif tag == 'bcb':
+        version_string = ''
+
+    if version_string is None:
+        version = version.group(1) + version.group(2)
+
+    tag += version
+
+    return tag
+
+
+def threading_tag(name, target_type, prop_set):
+    tag = ''
+    properties = prop_set.raw()
+    if '<threading>multi' in properties: tag = 'mt'
+
+    return tag
+
+
+def runtime_tag(name, target_type, prop_set ):
+    tag = ''
+
+    properties = prop_set.raw()
+    if '<runtime-link>static' in properties: tag += 's'
+
+    # This is an ugly thing. In V1, there's a code to automatically detect which
+    # properties affect a target. So, if <runtime-debugging> does not affect gcc
+    # toolset, the tag rules won't even see <runtime-debugging>. Similar
+    # functionality in V2 is not implemented yet, so we just check for toolsets
+    # which are known to care about runtime debug.
+    if '<toolset>msvc' in properties \
+       or '<stdlib>stlport' in properties \
+       or '<toolset-intel:platform>win' in properties:
+        if '<runtime-debugging>on' in properties: tag += 'g'
+
+    if '<python-debugging>on' in properties: tag += 'y'
+    if '<variant>debug' in properties: tag += 'd'
+    if '<stdlib>stlport' in properties: tag += 'p'
+    if '<stdlib-stlport:iostream>hostios' in properties: tag += 'n'
+
+    return tag
+
+
+## TODO:
+##rule __test__ ( )
+##{
+##    import assert ;
+##
+##    local nl = "
+##" ;
+##
+##    local save-os = [ modules.peek os : .name ] ;
+##
+##    modules.poke os : .name : LINUX ;
+##
+##    assert.result "PATH=foo:bar:baz$(nl)export PATH$(nl)"
+##        : path-variable-setting-command PATH : foo bar baz ;
+##
+##    assert.result "PATH=foo:bar:$PATH$(nl)export PATH$(nl)"
+##        : prepend-path-variable-command PATH : foo bar ;
+##
+##    modules.poke os : .name : NT ;
+##
+##    assert.result "set PATH=foo;bar;baz$(nl)"
+##        : path-variable-setting-command PATH : foo bar baz ;
+##
+##    assert.result "set PATH=foo;bar;%PATH%$(nl)"
+##        : prepend-path-variable-command PATH : foo bar ;
+##
+##    modules.poke os : .name : $(save-os) ;
+##}
+
+def init(manager):
+    engine = manager.engine()
+
+    engine.register_action("common.MkDir1-quick-fix-for-unix", 'mkdir -p "$(<)"')
+    engine.register_action("common.MkDir1-quick-fix-for-windows", 'if not exist "$(<)\\" mkdir "$(<)"')
+
+    import b2.tools.make
+    import b2.build.alias
+
+    global __RM, __CP, __IGNORE, __LN
+    # ported from trunk@47281
+    if os_name() == 'NT':
+        __RM = 'del /f /q'
+        __CP = 'copy'
+        __IGNORE = '2>nul >nul & setlocal'
+        __LN = __CP
+        #if not __LN:
+        #    __LN = CP
+    else:
+        __RM = 'rm -f'
+        __CP = 'cp'
+        __IGNORE = ''
+        __LN = 'ln'
+        
+    engine.register_action("common.Clean", __RM + ' "$(>)"',
+                           flags=['piecemeal', 'together', 'existing'])
+    engine.register_action("common.copy", __CP + ' "$(>)" "$(<)"')
+    engine.register_action("common.RmTemps", __RM + ' "$(>)" ' + __IGNORE,
+                           flags=['quietly', 'updated', 'piecemeal', 'together'])
+
+    engine.register_action("common.hard-link", 
+        __RM + ' "$(<)" 2$(NULL_OUT) $(NULL_OUT)' + os.linesep +
+        __LN + ' "$(>)" "$(<)" $(NULL_OUT)')
diff --git a/jam-files/boost-build/tools/como-linux.jam b/jam-files/boost-build/tools/como-linux.jam
new file mode 100644
index 00000000..5c554c8f
--- /dev/null
+++ b/jam-files/boost-build/tools/como-linux.jam
@@ -0,0 +1,103 @@
+# Copyright 2004, 2005, 2006 Vladimir Prus
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+# The following #// line will be used by the regression test table generation
+# program as the column heading for HTML tables. Must not include a version
+# number.
+#//<a href="http://www.comeaucomputing.com/">Comeau<br>C++</a>
+
+import toolset ;
+import feature ;
+import toolset : flags ;
+import common ;
+import generators ;
+
+import unix ;
+import como ;
+
+feature.extend-subfeature toolset como : platform : linux ;
+
+toolset.inherit-generators como-linux
+     <toolset>como <toolset-como:platform>linux : unix ;
+generators.override como-linux.prebuilt : builtin.lib-generator ;
+generators.override como-linux.searched-lib-generator : searched-lib-generator ;
+toolset.inherit-flags como-linux : unix ;
+toolset.inherit-rules como-linux : gcc ;
+
+generators.register-c-compiler como-linux.compile.c++ : CPP : OBJ
+    : <toolset>como <toolset-como:platform>linux ;
+generators.register-c-compiler como-linux.compile.c : C : OBJ
+    : <toolset>como <toolset-como:platform>linux ;
+
+
+rule init ( version ? : command * : options * )
+{
+    local condition = [ common.check-init-parameters como-linux
+        : version $(version) ] ;
+
+    command = [ common.get-invocation-command como-linux : como
+        : $(command) ] ;
+
+    common.handle-options como-linux : $(condition) : $(command) : $(options) ;
+}
+
+
+flags como-linux C++FLAGS <exception-handling>off : --no_exceptions ;
+flags como-linux C++FLAGS <exception-handling>on : --exceptions ;
+
+flags como-linux CFLAGS <inlining>off : --no_inlining ;
+flags como-linux CFLAGS <inlining>on <inlining>full : --inlining ;
+
+flags como-linux CFLAGS <optimization>off : -O0 ;
+flags como-linux CFLAGS <optimization>speed : -O3 ;
+flags como-linux CFLAGS <optimization>space : -Os ;
+
+flags como-linux CFLAGS <debug-symbols>on : -g ;
+flags como-linux LINKFLAGS <debug-symbols>on : -g ;
+
+flags como-linux FINDLIBS : m ;
+flags como-linux FINDLIBS : rt ;
+
+flags como-linux CFLAGS <cflags> ;
+flags como-linux C++FLAGS <cxxflags> ;
+flags como-linux DEFINES <define> ;
+flags como-linux UNDEFS <undef> ;
+flags como-linux HDRS <include> ;
+flags como-linux STDHDRS <sysinclude> ;
+flags como-linux LINKFLAGS <linkflags> ;
+flags como-linux ARFLAGS <arflags> ;
+
+flags como-linux.link LIBRARIES <library-file> ;
+flags como-linux.link LINKPATH <library-path> ;
+flags como-linux.link FINDLIBS-ST <find-static-library> ;
+flags como-linux.link FINDLIBS-SA <find-shared-library> ;
+
+flags como-linux.link RPATH <dll-path> ;
+flags como-linux.link RPATH_LINK <xdll-path> ;
+
+
+actions link bind LIBRARIES
+{
+    $(CONFIG_COMMAND) $(LINKFLAGS) -o "$(<[1])" "$(>)" -L"$(LINKPATH)" -Wl,-R$(SPACE)-Wl,"$(RPATH)" -Wl,-rpath-link$(SPACE)-Wl,"$(RPATH_LINK)"  "$(LIBRARIES)"  "$(LIBRARIES)" -l$(FINDLIBS-SA) -l$(FINDLIBS-ST) 2>&1
+}
+
+actions link.dll bind LIBRARIES
+{
+    $(CONFIG_COMMAND) $(LINKFLAGS) -shared -o "$(<[1])" "$(>)" -L"$(LINKPATH)" -Wl,-R$(SPACE)-Wl,"$(RPATH)" -Wl,-rpath-link$(SPACE)-Wl,"$(RPATH_LINK)" "$(LIBRARIES)"  "$(LIBRARIES)" -l$(FINDLIBS-SA) -l$(FINDLIBS-ST) 2>&1
+}
+
+actions compile.c
+{
+    $(CONFIG_COMMAND) -c --c99 --long_long -U$(UNDEFS) -D$(DEFINES) $(CFLAGS) -I"$(HDRS)" -I"$(STDHDRS)" -o "$(<)" "$(>)" 2>&1
+}
+
+actions compile.c++
+{
+    $(CONFIG_COMMAND) -tused -c --long_long -U$(UNDEFS) -D$(DEFINES) $(CFLAGS) $(C++FLAGS) -I"$(HDRS)" -I"$(STDHDRS)"  -o "$(<)" "$(>)" 2>&1
+}
+
+actions archive
+{
+    ar rcu $(<) $(>)
+}
diff --git a/jam-files/boost-build/tools/como-win.jam b/jam-files/boost-build/tools/como-win.jam
new file mode 100644
index 00000000..d21a70d6
--- /dev/null
+++ b/jam-files/boost-build/tools/como-win.jam
@@ -0,0 +1,117 @@
+# (C) Copyright David Abrahams 2001.
+# (C) Copyright MetaCommunications, Inc. 2004.
+
+# Distributed under the Boost Software License, Version 1.0. (See
+# accompanying file LICENSE_1_0.txt or copy at
+# http://www.boost.org/LICENSE_1_0.txt)
+
+# The following #// line will be used by the regression test table generation
+# program as the column heading for HTML tables. Must not include a version
+# number.
+#//<a href="http://www.comeaucomputing.com/">Comeau<br>C++</a>
+
+import common ;
+import como ;
+import feature ;
+import generators ;
+import toolset : flags ;
+
+feature.extend-subfeature toolset como : platform : win ;
+
+
+# Initializes the Comeau toolset for windows. The command is the command which
+# invokes the compiler. You should either set environment variable
+# COMO_XXX_INCLUDE where XXX is the used backend (as described in the
+# documentation), or pass that as part of command, e.g:
+#
+#   using como-win : 4.3 : "set COMO_BCC_INCLUDE=C:/include &&" como.exe ;
+#
+rule init ( version ? : command * : options * )
+{
+    local condition = [  common.check-init-parameters como-win
+        : version $(version) ] ;
+
+    command = [ common.get-invocation-command como-win : como.exe :
+        $(command) ] ;
+
+    common.handle-options como-win : $(condition) : $(command) : $(options) ;
+}
+
+generators.register-c-compiler como-win.compile.c++ : CPP : OBJ
+    : <toolset>como <toolset-como:platform>win ;
+generators.register-c-compiler como-win.compile.c : C : OBJ
+    : <toolset>como <toolset-como:platform>win ;
+
+
+generators.register-linker como-win.link
+    : OBJ SEARCHED_LIB STATIC_LIB IMPORT_LIB
+    : EXE
+    : <toolset>como <toolset-como:platform>win ;
+
+# Note that status of shared libraries support is not clear, so we do not define
+# the link.dll generator.
+generators.register-archiver como-win.archive
+    : OBJ : STATIC_LIB
+    : <toolset>como <toolset-como:platform>win ;
+
+
+flags como-win C++FLAGS <exception-handling>off : --no_exceptions ;
+flags como-win C++FLAGS <exception-handling>on : --exceptions ;
+
+flags como-win CFLAGS <inlining>off : --no_inlining ;
+flags como-win CFLAGS <inlining>on <inlining>full : --inlining ;
+
+
+# The following seems to be VC-specific options. At least, when I uncomment
+# then, Comeau with bcc as backend reports that bcc32 invocation failed.
+#
+#flags como-win CFLAGS <debug-symbols>on : /Zi ;
+#flags como-win CFLAGS <optimization>off : /Od ;
+
+
+flags como-win CFLAGS <cflags> ;
+flags como-win CFLAGS : -D_WIN32 ;  # Make sure that we get the Boost Win32 platform config header.
+flags como-win CFLAGS <threading>multi : -D_MT ;  # Make sure that our config knows that threading is on.
+flags como-win C++FLAGS <cxxflags> ;
+flags como-win DEFINES <define> ;
+flags como-win UNDEFS <undef> ;
+flags como-win HDRS <include> ;
+flags como-win SYSHDRS <sysinclude> ;
+flags como-win LINKFLAGS <linkflags> ;
+flags como-win ARFLAGS <arflags> ;
+flags como-win NO_WARN <no-warn> ;
+
+#flags como-win STDHDRS : $(COMO_INCLUDE_PATH) ;
+#flags como-win STDLIB_PATH : $(COMO_STDLIB_PATH)$(SLASH) ;
+
+flags como-win LIBPATH <library-path> ;
+flags como-win LIBRARIES <library-file> ;
+flags como-win FINDLIBS <find-shared-library> ;
+flags como-win FINDLIBS <find-static-library> ;
+
+nl = "
+" ;
+
+
+# For como, we repeat all libraries so that dependencies are always resolved.
+#
+actions link bind LIBRARIES
+{
+    $(CONFIG_COMMAND) --no_version --no_prelink_verbose $(LINKFLAGS) -o "$(<[1]:S=)" @"@($(<[1]:W).rsp:E=$(nl)"$(>)")" "$(LIBRARIES)" "$(FINDLIBS:S=.lib)"
+}
+
+actions compile.c
+{
+    $(CONFIG_COMMAND) -c --c99 -e5 --no_version --display_error_number --diag_suppress=9,21,161,748,940,962 -U$(UNDEFS) -D$(DEFINES) $(WARN) $(CFLAGS) -I"$(HDRS)" -I"$(STDHDRS)" -I"$(SYSHDRS)" -o "$(<:D=)" "$(>)"
+}
+
+actions compile.c++
+{
+    $(CONFIG_COMMAND) -c -e5 --no_version --no_prelink_verbose --display_error_number --long_long --diag_suppress=9,21,161,748,940,962 --diag_error=461 -D__STL_LONG_LONG -U$(UNDEFS) -D$(DEFINES) $(WARN) $(CFLAGS) $(C++FLAGS) -I"$(HDRS)" -I"$(STDHDRS)" -I"$(SYSHDRS)" -o "$(<)" "$(>)"
+}
+
+actions archive
+{
+    $(CONFIG_COMMAND) --no_version --no_prelink_verbose --prelink_object @"@($(<[1]:W).rsp:E=$(nl)"$(>)")"
+    lib $(ARFLAGS) /nologo /out:"$(<:S=.lib)" @"@($(<[1]:W).rsp:E=$(nl)"$(>)")"
+}
diff --git a/jam-files/boost-build/tools/como.jam b/jam-files/boost-build/tools/como.jam
new file mode 100644
index 00000000..04a05a94
--- /dev/null
+++ b/jam-files/boost-build/tools/como.jam
@@ -0,0 +1,29 @@
+# Copyright Vladimir Prus 2004.
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt
+# or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+# This is a generic 'como' toolset. Depending on the current system, it
+# forwards either to 'como-linux' or 'como-win' modules.
+
+import feature ;
+import os ;
+import toolset ;
+
+feature.extend toolset : como ;
+feature.subfeature toolset como : platform : : propagated link-incompatible ;
+
+rule init ( * : * )
+{
+    if [ os.name ] = LINUX
+    {
+        toolset.using como-linux : 
+          $(1) : $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ;
+    }
+    else
+    {
+        toolset.using como-win :
+          $(1) : $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ;
+
+    }        
+}
diff --git a/jam-files/boost-build/tools/convert.jam b/jam-files/boost-build/tools/convert.jam
new file mode 100644
index 00000000..ac1d7010
--- /dev/null
+++ b/jam-files/boost-build/tools/convert.jam
@@ -0,0 +1,62 @@
+# Copyright (c) 2009 Vladimir Prus
+#
+# Use, modification and distribution is subject to the Boost Software
+# License Version 1.0. (See accompanying file LICENSE_1_0.txt or
+# http://www.boost.org/LICENSE_1_0.txt)
+
+# Implements 'convert' target that takes a bunch of source and
+# tries to convert each one to the specified type.
+#
+# For example:
+#
+#   convert objects obj : a.cpp b.cpp ;
+#
+
+import targets ;
+import generators ;
+import project ;
+import type ;
+import "class" : new ;
+
+class convert-target-class : typed-target
+{
+    rule __init__ ( name : project : type
+    : sources * : requirements * : default-build * : usage-requirements * )
+    {
+        typed-target.__init__ $(name) : $(project) : $(type)
+          : $(sources) : $(requirements) : $(default-build) : $(usage-requirements) ;
+    }
+
+    rule construct ( name : source-targets * : property-set )
+    {
+        local r = [ generators.construct $(self.project) : $(self.type)
+          : [ property-set.create [ $(property-set).raw ] # [ feature.expand
+              <main-target-type>$(self.type) ]
+          # ]
+            : $(source-targets) ] ;
+        if ! $(r)
+        {
+            errors.error "unable to construct" [ full-name ] ;
+        }
+
+        return $(r) ;
+    }
+
+}
+
+rule convert ( name type : sources * : requirements * : default-build *
+    : usage-requirements * )
+{
+    local project = [ project.current ] ;
+
+    # This is a circular module dependency, so it must be imported here
+    modules.import targets ;
+    targets.main-target-alternative
+      [ new convert-target-class $(name) : $(project) : [ type.type-from-rule-name $(type) ]
+        : [ targets.main-target-sources $(sources) : $(name) ]
+        : [ targets.main-target-requirements $(requirements) : $(project) ]
+        : [ targets.main-target-default-build $(default-build) : $(project) ]
+        : [ targets.main-target-usage-requirements $(usage-requirements) : $(project) ]
+      ] ;
+}
+IMPORT $(__name__) : convert : : convert ;
diff --git a/jam-files/boost-build/tools/cw-config.jam b/jam-files/boost-build/tools/cw-config.jam
new file mode 100644
index 00000000..1211b7c0
--- /dev/null
+++ b/jam-files/boost-build/tools/cw-config.jam
@@ -0,0 +1,34 @@
+#~ Copyright 2005 Rene Rivera.
+#~ Distributed under the Boost Software License, Version 1.0.
+#~ (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+# Automatic configuration for CodeWarrior toolset. To use, just import this module.
+
+import os ;
+import toolset : using ;
+
+if [ os.name ] = NT
+{
+    for local R in 9 8 7
+    {
+        local cw-path = [ W32_GETREG
+            "HKEY_LOCAL_MACHINE\\SOFTWARE\\Metrowerks\\CodeWarrior\\Product Versions\\CodeWarrior for Windows R$(R)"
+            : "PATH" ] ;
+        local cw-version = [ W32_GETREG
+            "HKEY_LOCAL_MACHINE\\SOFTWARE\\Metrowerks\\CodeWarrior\\Product Versions\\CodeWarrior for Windows R$(R)"
+            : "VERSION" ] ;
+        cw-path ?= [ W32_GETREG
+            "HKEY_LOCAL_MACHINE\\SOFTWARE\\Metrowerks\\CodeWarrior for Windows\\$(R).0"
+            : "PATH" ] ;
+        cw-version ?= $(R).0 ;
+        
+        if $(cw-path)
+        {
+            if --debug-configuration in [ modules.peek : ARGV ]
+            {
+                ECHO "notice:" using cw ":" $(cw-version) ":" "$(cw-path)\\Other Metrowerks Tools\\Command Line Tools\\mwcc.exe" ;
+            }
+            using cw : $(cw-version) : "$(cw-path)\\Other Metrowerks Tools\\Command Line Tools\\mwcc.exe" ;
+        }
+    }
+}
diff --git a/jam-files/boost-build/tools/cw.jam b/jam-files/boost-build/tools/cw.jam
new file mode 100644
index 00000000..ddcbfeb2
--- /dev/null
+++ b/jam-files/boost-build/tools/cw.jam
@@ -0,0 +1,246 @@
+# Copyright (C) Reece H Dunn 2004
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or copy at
+# http://www.boost.org/LICENSE_1_0.txt)
+
+# based on the msvc.jam toolset
+
+import property ;
+import generators ;
+import os ;
+import type ;
+import toolset : flags ;
+import errors : error ;
+import feature : feature get-values ;
+import path ;
+import sequence : unique ;
+import common ;
+
+if [ MATCH (--debug-configuration) : [ modules.peek : ARGV ] ]
+{
+   .debug-configuration = true ;
+}
+
+feature.extend toolset : cw ;
+
+toolset.add-requirements <toolset>cw,<runtime-link>shared:<threading>multi ;
+
+nl = "
+" ;
+
+rule init ( version ? : command * : options * )
+{
+   # TODO: fix the $(command[1]) = $(compiler) issue
+    
+    setup = [ get-values <setup> : $(options) ] ;
+    setup    ?= cwenv.bat ;
+    compiler = [ get-values <compiler> : $(options) ] ;
+    compiler ?= mwcc ;
+    linker = [ get-values <linker> : $(options) ] ;
+    linker   ?= mwld ;
+
+    local condition = [ common.check-init-parameters cw :
+        version $(version) ] ;
+
+    command = [ common.get-invocation-command cw : mwcc.exe : $(command) :
+        [ default-paths $(version) ] ] ;
+    
+    common.handle-options cw : $(condition) : $(command) : $(options) ;
+
+    local root = [ feature.get-values <root> : $(options) ] ;    
+    if $(command)
+    {
+        command = [ common.get-absolute-tool-path $(command[-1]) ] ;
+    }
+    local tool-root = $(command) ;
+
+    setup = $(tool-root)\\$(setup) ;
+
+   # map the batch file in setup so it can be executed
+
+    other-tools = $(tool-root:D) ;
+    root ?= $(other-tools:D) ;
+    
+    flags cw.link RUN_PATH $(condition) : 
+        "$(root)\\Win32-x86 Support\\Libraries\\Runtime"
+        "$(root)\\Win32-x86 Support\\Libraries\\Runtime\\Libs\\MSL_All-DLLs" ;      
+    
+    setup = "set \"CWFOLDER="$(root)"\" && call \""$(setup)"\" > nul " ;
+
+   if [ os.name ] = NT
+   {
+      setup = $(setup)"
+" ;
+   }
+   else
+   {
+      setup = "cmd /S /C "$(setup)" \"&&\" " ;
+   }
+
+   # bind the setup command to the tool so it can be executed before the
+   # command
+
+   local prefix = $(setup) ;
+
+   flags cw.compile .CC $(condition) : $(prefix)$(compiler) ;
+   flags cw.link .LD $(condition) : $(prefix)$(linker) ;
+   flags cw.archive .LD $(condition) : $(prefix)$(linker) ;
+
+    if [ MATCH ^([89]\\.) : $(version) ]   
+    {
+        if [ os.name ] = NT
+        {
+        # The runtime libraries
+        flags cw.compile CFLAGS <runtime-link>static/<threading>single/<runtime-debugging>off : -runtime ss ;
+        flags cw.compile CFLAGS <runtime-link>static/<threading>single/<runtime-debugging>on : -runtime ssd ;
+        
+        flags cw.compile CFLAGS <runtime-link>static/<threading>multi/<runtime-debugging>off : -runtime sm ;
+        flags cw.compile CFLAGS <runtime-link>static/<threading>multi/<runtime-debugging>on : -runtime smd ;
+        
+        flags cw.compile CFLAGS <runtime-link>shared/<runtime-debugging>off : -runtime dm ;
+        flags cw.compile CFLAGS <runtime-link>shared/<runtime-debugging>on : -runtime dmd ;
+        }        
+    }    
+}
+
+
+local rule default-paths ( version ? )  # FIXME
+{
+   local possible-paths ;
+   local ProgramFiles = [ common.get-program-files-dir ] ;
+
+   # TODO: add support for cw8 and cw9 detection
+
+   local version-6-path = $(ProgramFiles)"\\Metrowerks\\CodeWarrior" ;
+   possible-paths += $(version-6-path) ;
+
+   # perform post-processing
+
+   possible-paths
+      = $(possible-paths)"\\Other Metrowerks Tools\\Command Line Tools" ;
+
+   possible-paths += [ modules.peek : PATH Path path ] ;
+
+   return $(possible-paths) ;
+}
+
+
+
+
+## declare generators
+
+generators.register-c-compiler cw.compile.c++ : CPP : OBJ : <toolset>cw ;
+generators.register-c-compiler cw.compile.c : C : OBJ : <toolset>cw ;
+
+generators.register-linker cw.link
+   : OBJ SEARCHED_LIB STATIC_LIB IMPORT_LIB
+   : EXE
+   : <toolset>cw
+   ;
+generators.register-linker cw.link.dll
+   : OBJ SEARCHED_LIB STATIC_LIB IMPORT_LIB
+   : SHARED_LIB IMPORT_LIB
+   : <toolset>cw
+   ;
+
+generators.register-archiver cw.archive
+   : OBJ
+   : STATIC_LIB
+   : <toolset>cw
+   ;
+
+## compilation phase
+
+flags cw WHATEVER <toolset-cw:version> ;
+
+flags cw.compile CFLAGS <debug-symbols>on : -g ;
+flags cw.compile CFLAGS <optimization>off : -O0 ;
+flags cw.compile CFLAGS <optimization>speed : -O4,p ;
+flags cw.compile CFLAGS <optimization>space : -O4,s ;
+flags cw.compile CFLAGS <inlining>off : -inline off ;
+flags cw.compile CFLAGS <inlining>on : -inline on ;
+flags cw.compile CFLAGS <inlining>full : -inline all ;
+flags cw.compile CFLAGS <exception-handling>off : -Cpp_exceptions off ;
+
+
+flags cw.compile CFLAGS <rtti>on : -RTTI on ;
+flags cw.compile CFLAGS <rtti>off : -RTTI off ;
+
+flags cw.compile CFLAGS <warnings>on : -w on ;
+flags cw.compile CFLAGS <warnings>off : -w off ;
+flags cw.compile CFLAGS <warnings>all : -w all ;
+flags cw.compile CFLAGS <warnings-as-errors>on : -w error ;
+
+flags cw.compile USER_CFLAGS <cflags> : ;
+flags cw.compile.c++ USER_CFLAGS <cxxflags> : ;
+
+flags cw.compile DEFINES <define> ;
+flags cw.compile UNDEFS <undef> ;
+flags cw.compile INCLUDES <include> ;
+
+actions compile.c
+{
+   $(.CC) -c -cwd include -lang c -U$(UNDEFS) $(CFLAGS) $(USER_CFLAGS) -I- -o "$(<)" @"@($(<[1]:W).rsp:E=$(nl)"$(>)" $(nl)-D$(DEFINES) $(nl)"-I$(INCLUDES)")"
+}
+actions compile.c++
+{
+   $(.CC) -c -cwd include -lang c++ -U$(UNDEFS) $(CFLAGS) $(USER_CFLAGS) -I- -o "$(<)" @"@($(<[1]:W).rsp:E=$(nl)"$(>)" $(nl)-D$(DEFINES) $(nl)"-I$(INCLUDES)")"
+}
+
+## linking phase
+
+flags cw.link DEF_FILE <def-file> ;
+
+flags cw LINKFLAGS : -search ;
+flags cw LINKFLAGS <debug-symbols>on : -g ;
+flags cw LINKFLAGS <user-interface>console : -subsystem console ;
+flags cw LINKFLAGS <user-interface>gui : -subsystem windows ;
+flags cw LINKFLAGS <user-interface>wince : -subsystem wince ;
+flags cw LINKFLAGS <user-interface>native : -subsystem native ;
+flags cw LINKFLAGS <user-interface>auto : -subsystem auto ;
+
+flags cw LINKFLAGS <main-target-type>LIB/<link>static : -library ;
+
+flags cw.link USER_LINKFLAGS <linkflags> ;
+flags cw.link LINKPATH <library-path> ;
+
+flags cw.link FINDLIBS_ST <find-static-library> ;
+flags cw.link FINDLIBS_SA <find-shared-library> ;
+flags cw.link LIBRARY_OPTION <toolset>cw : "" : unchecked ;
+flags cw.link LIBRARIES_MENTIONED_BY_FILE : <library-file> ;
+
+rule link.dll ( targets + : sources * : properties * )
+{
+    DEPENDS $(<) : [ on $(<) return $(DEF_FILE) ] ;
+}
+
+if [ os.name ] in NT
+{
+   actions archive
+   {
+      if exist "$(<[1])" DEL "$(<[1])"
+      $(.LD) -library -o "$(<[1])" @"@($(<[1]:W).rsp:E=$(nl)"$(>)" $(nl)$(LIBRARIES_MENTIONED_BY_FILE) $(nl)"$(LIBRARY_OPTION)$(FINDLIBS_ST:S=.lib)" $(nl)"$(LIBRARY_OPTION)$(FINDLIBS_SA:S=.lib)")"
+   }
+}
+else # cygwin
+{
+   actions archive
+   {
+      _bbv2_out_="$(<)"
+      if test -f "$_bbv2_out_" ; then
+         _bbv2_existing_="$(<:W)"
+      fi
+      $(.LD) -library -o "$(<:W)" $_bbv2_existing_ @"@($(<[1]:W).rsp:E=$(nl)"$(>)" $(nl)$(LIBRARIES_MENTIONED_BY_FILE) $(nl)"$(LIBRARY_OPTION)$(FINDLIBS_ST:S=.lib)" $(nl)"$(LIBRARY_OPTION)$(FINDLIBS_SA:S=.lib)")"
+   }
+}
+
+actions link bind DEF_FILE
+{
+   $(.LD) -o "$(<[1]:W)" -L"$(LINKPATH)" $(LINKFLAGS) $(USER_LINKFLAGS) @"@($(<[1]:W).rsp:E=$(nl)"$(>)" $(nl)$(LIBRARIES_MENTIONED_BY_FILE) $(nl)"$(LIBRARY_OPTION)$(FINDLIBS_ST:S=.lib)" $(nl)"$(LIBRARY_OPTION)$(FINDLIBS_SA:S=.lib)")"
+}
+
+actions link.dll bind DEF_FILE
+{
+   $(.LD) -shared -o "$(<[1]:W)" -implib "$(<[2]:W)" -L"$(LINKPATH)" $(LINKFLAGS) -f"$(DEF_FILE)" $(USER_LINKFLAGS) @"@($(<[1]:W).rsp:E=$(nl)"$(>)" $(nl)$(LIBRARIES_MENTIONED_BY_FILE) $(nl)"$(LIBRARY_OPTION)$(FINDLIBS_ST:S=.lib)" $(nl)"$(LIBRARY_OPTION)$(FINDLIBS_SA:S=.lib)")"
+}
+
diff --git a/jam-files/boost-build/tools/darwin.jam b/jam-files/boost-build/tools/darwin.jam
new file mode 100644
index 00000000..bb6dd45e
--- /dev/null
+++ b/jam-files/boost-build/tools/darwin.jam
@@ -0,0 +1,568 @@
+# Copyright 2003 Christopher Currie
+# Copyright 2006 Dave Abrahams 
+# Copyright 2003, 2004, 2005, 2006 Vladimir Prus 
+# Copyright 2005-2007 Mat Marcus
+# Copyright 2005-2007 Adobe Systems Incorporated
+# Copyright 2007-2010 Rene Rivera
+# Distributed under the Boost Software License, Version 1.0. 
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) 
+
+#  Please see http://article.gmane.org/gmane.comp.lib.boost.build/3389/
+#  for explanation why it's a separate toolset.
+
+import feature : feature ;
+import toolset : flags ;
+import type ;
+import common ;
+import generators ;
+import path : basename ;
+import version ;
+import property-set ;
+import regex ;
+import errors ;
+
+## Use a framework.
+feature framework : : free ;
+
+## The MacOSX version to compile for, which maps to the SDK to use (sysroot).
+feature macosx-version : : propagated link-incompatible symmetric optional ;
+
+## The minimal MacOSX version to target.
+feature macosx-version-min : : propagated optional ;
+
+## A dependency, that is forced to be included in the link.
+feature force-load : : free dependency incidental ;
+
+#############################################################################
+
+if [ MATCH (--debug-configuration) : [ modules.peek : ARGV ] ]
+{
+    .debug-configuration = true ;
+}
+
+feature.extend toolset : darwin ;
+import gcc ;
+toolset.inherit-generators darwin : gcc : gcc.mingw.link gcc.mingw.link.dll ;
+
+generators.override darwin.prebuilt : builtin.prebuilt ;
+generators.override darwin.searched-lib-generator : searched-lib-generator ;
+
+# Override default do-nothing generators.
+generators.override darwin.compile.c.pch   : pch.default-c-pch-generator   ;
+generators.override darwin.compile.c++.pch : pch.default-cpp-pch-generator ;
+
+type.set-generated-target-suffix PCH : <toolset>darwin : gch ;
+
+toolset.inherit-rules darwin : gcc : localize ;
+toolset.inherit-flags darwin : gcc     
+  :  <runtime-link>static
+     <architecture>arm/<address-model>32
+     <architecture>arm/<address-model>64
+     <architecture>arm/<instruction-set>
+     <architecture>x86/<address-model>32
+     <architecture>x86/<address-model>64
+     <architecture>x86/<instruction-set>
+     <architecture>power/<address-model>32
+     <architecture>power/<address-model>64
+     <architecture>power/<instruction-set>  ;
+
+# Options:
+#
+#   <root>PATH
+#       Platform root path. The common autodetection will set this to
+#       "/Developer". And when a command is given it will be set to
+#       the corresponding "*.platform/Developer" directory.
+#
+rule init ( version ? : command * : options * : requirement * )
+{
+    # First time around, figure what is host OSX version
+    if ! $(.host-osx-version)  
+    {
+        .host-osx-version = [ MATCH "^([0-9.]+)"
+          : [ SHELL "/usr/bin/sw_vers -productVersion" ] ] ;
+        if $(.debug-configuration)
+        {
+            ECHO notice: OSX version on this machine is $(.host-osx-version) ;
+        }
+    }
+                      
+    # - The root directory of the tool install.
+    local root = [ feature.get-values <root> : $(options) ] ;
+    
+    # - The bin directory where to find the commands to execute.
+    local bin ;
+    
+    # - The configured compile driver command.
+    local command = [ common.get-invocation-command darwin : g++ : $(command) ] ;
+    
+    # The version as reported by the compiler
+    local real-version ;
+    
+    # - Autodetect the root and bin dir if not given.
+    if $(command)
+    {
+        bin ?= [ common.get-absolute-tool-path $(command[1]) ] ;
+        if $(bin) = "/usr/bin"
+        {
+            root ?= /Developer ;
+        }
+        else
+        {
+            local r = $(bin:D) ;
+            r = $(r:D) ;
+            root ?= $(r) ;
+        }
+    }
+    
+    # - Autodetect the version if not given.
+    if $(command)
+    {
+        # - The 'command' variable can have multiple elements. When calling
+        #   the SHELL builtin we need a single string.
+        local command-string = $(command:J=" ") ;
+        real-version = [ MATCH "^([0-9.]+)"
+            : [ SHELL "$(command-string) -dumpversion" ] ] ;
+        version ?= $(real-version) ;
+    }
+    
+    .real-version.$(version) = $(real-version) ;
+    
+    # - Define the condition for this toolset instance.
+    local condition =
+        [ common.check-init-parameters darwin $(requirement) : version $(version) ] ;
+    
+    # - Set the toolset generic common options.
+    common.handle-options darwin : $(condition) : $(command) : $(options) ;
+    
+    # - GCC 4.0 and higher in Darwin does not have -fcoalesce-templates.
+    if $(real-version) < "4.0.0"
+    {
+        flags darwin.compile.c++ OPTIONS $(condition) : -fcoalesce-templates ;
+    }
+    # - GCC 4.2 and higher in Darwin does not have -Wno-long-double.
+    if $(real-version) < "4.2.0"
+    {
+        flags darwin.compile OPTIONS $(condition) : -Wno-long-double ;
+    }
+
+    # - Set the link flags common with the GCC toolset.
+    gcc.init-link-flags darwin darwin $(condition) ;
+
+    # - The symbol strip program.
+    local strip ;
+    if <striper> in $(options)
+    {
+        # We can turn off strip by specifying it as empty. In which
+        # case we switch to using the linker to do the strip.
+        flags darwin.link.dll OPTIONS
+            $(condition)/<main-target-type>LIB/<link>shared/<address-model>32/<strip>on : -Wl,-x ;
+        flags darwin.link.dll OPTIONS
+            $(condition)/<main-target-type>LIB/<link>shared/<address-model>/<strip>on : -Wl,-x ;
+        flags darwin.link OPTIONS
+            $(condition)/<main-target-type>EXE/<address-model>32/<strip>on : -s ;
+        flags darwin.link OPTIONS
+            $(condition)/<main-target-type>EXE/<address-model>/<strip>on : -s ;
+    }
+    else
+    {
+        # Otherwise we need to find a strip program to use. And hence
+        # also tell the link action that we need to use a strip
+        # post-process.
+        flags darwin.link NEED_STRIP $(condition)/<strip>on : "" ;
+        strip =
+            [ common.get-invocation-command darwin
+                : strip : [ feature.get-values <striper> : $(options) ] : $(bin) : search-path ] ;
+        flags darwin.link .STRIP $(condition) : $(strip[1]) ;
+        if $(.debug-configuration)
+        {
+            ECHO notice: using strip for $(condition) at $(strip[1]) ;
+        }
+    }
+
+    # - The archive builder (libtool is the default as creating
+    #   archives in darwin is complicated.
+    local archiver =
+        [ common.get-invocation-command darwin
+            : libtool : [ feature.get-values <archiver> : $(options) ] : $(bin) : search-path ] ;
+    flags darwin.archive .LIBTOOL $(condition) : $(archiver[1]) ;
+    if $(.debug-configuration)
+    {
+        ECHO notice: using archiver for $(condition) at $(archiver[1]) ;
+    }
+    
+    # - Initialize the SDKs available in the root for this tool.
+    local sdks = [ init-available-sdk-versions $(condition) : $(root) ] ;
+    
+    #~ ECHO --- ;
+    #~ ECHO --- bin :: $(bin) ;
+    #~ ECHO --- root :: $(root) ;
+    #~ ECHO --- version :: $(version) ;
+    #~ ECHO --- condition :: $(condition) ;
+    #~ ECHO --- strip :: $(strip) ;
+    #~ ECHO --- archiver :: $(archiver) ;
+    #~ ECHO --- sdks :: $(sdks) ;
+    #~ ECHO --- ;
+    #~ EXIT ;
+}
+
+# Add and set options for a discovered SDK version.
+local rule init-sdk ( condition * : root ? : version + : version-feature ? )
+{
+    local rule version-to-feature ( version + )
+    {
+        switch $(version[1])
+        {
+            case iphone* :
+            {
+                return $(version[1])-$(version[2-]:J=.) ;
+            }
+            case mac* :
+            {
+                return $(version[2-]:J=.) ;
+            }
+            case * :
+            {
+                return $(version:J=.) ;
+            }
+        }
+    }
+    
+    if $(version-feature)
+    {
+        if $(.debug-configuration)
+        {
+            ECHO notice: available sdk for $(condition)/<macosx-version>$(version-feature) at $(sdk) ;
+        }
+        
+        # Add the version to the features for specifying them.
+        if ! $(version-feature) in [ feature.values macosx-version ]
+        {
+            feature.extend macosx-version : $(version-feature) ;
+        }
+        if ! $(version-feature) in [ feature.values macosx-version-min ]
+        {
+            feature.extend macosx-version-min : $(version-feature) ;
+        }
+        
+        # Set the flags the version needs to compile with, first
+        # generic options.
+        flags darwin.compile OPTIONS $(condition)/<macosx-version>$(version-feature)
+            : -isysroot $(sdk) ;
+        flags darwin.link OPTIONS $(condition)/<macosx-version>$(version-feature)
+            : -isysroot $(sdk) ;
+        
+        # Then device variation options.
+        switch $(version[1])
+        {
+            case iphonesim* :
+            {
+                local N = $(version[2]) ;
+                if ! $(version[3]) { N += 00 ; }
+                else if [ regex.match (..) : $(version[3]) ] { N += $(version[3]) ; }
+                else { N += 0$(version[3]) ; }
+                if ! $(version[4]) { N += 00 ; }
+                else if [ regex.match (..) : $(version[4]) ] { N += $(version[4]) ; }
+                else { N += 0$(version[4]) ; }
+                N = $(N:J=) ;
+                flags darwin.compile OPTIONS <macosx-version-min>$(version-feature)
+                    : -D__IPHONE_OS_VERSION_MIN_REQUIRED=$(N) ;
+                flags darwin.link OPTIONS <macosx-version-min>$(version-feature)
+                    : -D__IPHONE_OS_VERSION_MIN_REQUIRED=$(N) ;
+            }
+            
+            case iphone* :
+            {
+                flags darwin.compile OPTIONS <macosx-version-min>$(version-feature)
+                    : -miphoneos-version-min=$(version[2-]:J=.) ;
+                flags darwin.link OPTIONS <macosx-version-min>$(version-feature)
+                    : -miphoneos-version-min=$(version[2-]:J=.) ;
+            }
+            
+            case mac* :
+            {
+                flags darwin.compile OPTIONS <macosx-version-min>$(version-feature)
+                    : -mmacosx-version-min=$(version[2-]:J=.) ;
+                flags darwin.link OPTIONS <macosx-version-min>$(version-feature)
+                    : -mmacosx-version-min=$(version[2-]:J=.) ;
+            }
+        }
+        
+        return $(version-feature) ;
+    }
+    else if $(version[4])
+    {
+        # We have a patch version of an SDK. We want to set up
+        # both the specific patch version, and the minor version.
+        # So we recurse to set up the minor version. Plus the minor version.
+        return
+            [ init-sdk $(condition) : $(root)
+                : $(version[1-3]) : [ version-to-feature $(version[1-3]) ] ]
+            [ init-sdk $(condition) : $(root)
+                : $(version) : [ version-to-feature $(version) ] ] ;
+    }
+    else
+    {
+        # Yes, this is intentionally recursive.
+        return
+            [ init-sdk $(condition) : $(root)
+                : $(version) : [ version-to-feature $(version) ] ] ;
+    }
+}
+
+# Determine the MacOSX SDK versions installed and their locations.
+local rule init-available-sdk-versions ( condition * : root ? )
+{
+    root ?= /Developer ;
+    local sdks-root = $(root)/SDKs ;
+    local sdks = [ GLOB $(sdks-root) : MacOSX*.sdk iPhoneOS*.sdk iPhoneSimulator*.sdk ] ;
+    local result ;
+    for local sdk in $(sdks)
+    {
+        local sdk-match = [ MATCH ([^0-9]+)([0-9]+)[.]([0-9x]+)[.]?([0-9x]+)? : $(sdk:D=) ] ;
+        local sdk-platform = $(sdk-match[1]:L) ;
+        local sdk-version = $(sdk-match[2-]) ;
+        if $(sdk-version)
+        {
+            switch $(sdk-platform)
+            {
+                case macosx :
+                {
+                    sdk-version = mac $(sdk-version) ;
+                }
+                case iphoneos :
+                {
+                    sdk-version = iphone $(sdk-version) ;
+                }
+                case iphonesimulator :
+                {
+                    sdk-version = iphonesim $(sdk-version) ;
+                }
+                case * :
+                {
+                    sdk-version = $(sdk-version:J=-) ;
+                }
+            }
+            result += [ init-sdk $(condition) : $(sdk) : $(sdk-version) ] ;
+        }
+    }
+    return $(result) ;
+}
+
+# Generic options.
+flags darwin.compile OPTIONS <flags> ;
+
+# The following adds objective-c support to darwin.
+# Thanks to http://thread.gmane.org/gmane.comp.lib.boost.build/13759
+
+generators.register-c-compiler darwin.compile.m : OBJECTIVE_C : OBJ : <toolset>darwin ;
+generators.register-c-compiler darwin.compile.mm : OBJECTIVE_CPP : OBJ : <toolset>darwin ;
+
+rule setup-address-model ( targets * : sources * : properties * )
+{
+    local ps = [ property-set.create $(properties) ] ;
+    local arch = [ $(ps).get <architecture> ] ;
+    local address-model = [ $(ps).get <address-model> ] ;
+    local osx-version = [ $(ps).get <macosx-version> ] ;
+    local gcc-version = [ $(ps).get <toolset-darwin:version> ] ;
+    gcc-version = $(.real-version.$(gcc-version)) ;
+    local options ;
+    
+    local support-ppc64 = 1 ;
+    
+    osx-version ?= $(.host-osx-version) ;
+
+    switch $(osx-version)
+    {
+        case iphone* :
+        {
+            support-ppc64 = ;
+        }
+        
+        case * :
+        if $(osx-version) && ! [ version.version-less [ regex.split $(osx-version) \\. ] : 10 6 ]
+        {
+            # When targeting 10.6:
+            # - gcc 4.2 will give a compiler errir if ppc64 compilation is requested
+            # - gcc 4.0 will compile fine, somehow, but then fail at link time
+            support-ppc64 = ;
+        }
+    }
+    switch $(arch)
+    {
+        case combined : 
+        {
+            if $(address-model) = 32_64 {
+                if $(support-ppc64) {
+                    options = -arch i386 -arch ppc -arch x86_64 -arch ppc64 ;                    
+                } else {
+                    # Build 3-way binary
+                    options = -arch i386 -arch ppc -arch x86_64 ;
+                }                                
+            } else if $(address-model) = 64 {
+                if $(support-ppc64) {
+                    options = -arch x86_64 -arch ppc64 ;
+                } else {
+                    errors.user-error "64-bit PPC compilation is not supported when targeting OSX 10.6 or later" ;
+                }                
+            } else {
+                options = -arch i386 -arch ppc ;
+            }
+        }
+        
+        case x86 : 
+        {
+            if $(address-model) = 32_64 {
+                options = -arch i386 -arch x86_64 ;
+            } else if $(address-model) = 64 {
+                options = -arch x86_64 ;
+            } else {
+                options = -arch i386 ;
+            }
+        }        
+        
+        case power :
+        {
+            if ! $(support-ppc64) 
+              && (  $(address-model) = 32_64 || $(address-model) = 64 )
+            {
+                errors.user-error "64-bit PPC compilation is not supported when targeting OSX 10.6 or later" ;
+            }
+            
+            if $(address-model) = 32_64 {
+                options = -arch ppc -arch ppc64 ;
+            } else if $(address-model) = 64 {
+                options = -arch ppc64 ;
+            } else {
+                options = -arch ppc ;
+            }
+        }
+        
+        case arm :
+        {
+            options = -arch armv6 ;
+        }        
+    }
+    
+    if $(options)
+    {
+        OPTIONS on $(targets) += $(options) ;
+    }            
+}
+
+rule setup-threading ( targets * : sources * : properties * )
+{
+    gcc.setup-threading $(targets) : $(sources) : $(properties) ;
+}
+
+rule setup-fpic ( targets * : sources * : properties * )
+{
+    gcc.setup-fpic $(targets) : $(sources) : $(properties) ;
+}
+
+rule compile.m ( targets * : sources * : properties * )
+{
+    LANG on $(<) = "-x objective-c" ;
+    gcc.setup-fpic $(targets) : $(sources) : $(properties) ;
+    setup-address-model $(targets) : $(sources) : $(properties) ;
+}
+
+actions compile.m
+{
+    "$(CONFIG_COMMAND)" $(LANG) $(OPTIONS) $(USER_OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -c -o "$(<)" "$(>)"
+}
+
+rule compile.mm  ( targets * : sources * : properties * )
+{
+    LANG on $(<) = "-x objective-c++" ;
+    gcc.setup-fpic $(targets) : $(sources) : $(properties) ;
+    setup-address-model $(targets) : $(sources) : $(properties) ;
+}
+
+actions compile.mm
+{
+    "$(CONFIG_COMMAND)" $(LANG) $(OPTIONS) $(USER_OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -c -o "$(<)" "$(>)"
+}
+
+# Set the max header padding to allow renaming of libs for installation.
+flags darwin.link.dll OPTIONS : -headerpad_max_install_names ;
+
+# To link the static runtime we need to link to all the core runtime libraries.
+flags darwin.link OPTIONS <runtime-link>static
+    : -nodefaultlibs -shared-libgcc -lstdc++-static -lgcc_eh -lgcc -lSystem ;
+
+# Strip as much as possible when optimizing.
+flags darwin.link OPTIONS <optimization>speed : -Wl,-dead_strip -no_dead_strip_inits_and_terms ;
+flags darwin.link OPTIONS <optimization>space : -Wl,-dead_strip -no_dead_strip_inits_and_terms ;
+
+# Dynamic/shared linking.
+flags darwin.compile OPTIONS <link>shared : -dynamic ;
+
+# Misc options.
+flags darwin.compile OPTIONS : -gdwarf-2 -fexceptions ;
+#~ flags darwin.link OPTIONS : -fexceptions ;
+
+# Add the framework names to use.
+flags darwin.link FRAMEWORK <framework> ;
+
+#
+flags darwin.link FORCE_LOAD <force-load> ;
+
+# This is flag is useful for debugging the link step
+# uncomment to see what libtool is doing under the hood
+#~ flags darwin.link.dll OPTIONS : -Wl,-v ;
+
+_ = " " ;
+
+# set up the -F option to include the paths to any frameworks used.
+local rule prepare-framework-path ( target + )
+{
+    # The -framework option only takes basename of the framework.
+    # The -F option specifies the directories where a framework
+    # is searched for.  So, if we find <framework> feature
+    # with some path, we need to generate property -F option.
+    local framework-paths = [ on $(target) return $(FRAMEWORK:D) ] ;
+
+    # Be sure to generate no -F if there's no path.
+    for local framework-path in $(framework-paths)
+    {
+        if $(framework-path) != ""
+        {
+            FRAMEWORK_PATH on $(target) += -F$(framework-path) ;
+        }
+    }
+}
+
+rule link ( targets * : sources * : properties * )
+{
+    DEPENDS $(targets) : [ on $(targets) return $(FORCE_LOAD) ] ;
+    setup-address-model $(targets) : $(sources) : $(properties) ;
+    prepare-framework-path $(<) ;
+}
+
+# Note that using strip without any options was reported to result in broken
+# binaries, at least on OS X 10.5.5, see:
+#    http://svn.boost.org/trac/boost/ticket/2347
+# So we pass -S -x.
+actions link bind LIBRARIES FORCE_LOAD
+{
+    "$(CONFIG_COMMAND)" -L"$(LINKPATH)" -o "$(<)" "$(>)" -Wl,-force_load$(_)"$(FORCE_LOAD)" "$(LIBRARIES)" -l$(FINDLIBS-SA) -l$(FINDLIBS-ST) $(FRAMEWORK_PATH) -framework$(_)$(FRAMEWORK:D=:S=) $(OPTIONS) $(USER_OPTIONS)
+    $(NEED_STRIP)"$(.STRIP)" $(NEED_STRIP)-S $(NEED_STRIP)-x $(NEED_STRIP)"$(<)"
+}
+
+rule link.dll ( targets * : sources * : properties * )
+{
+    setup-address-model $(targets) : $(sources) : $(properties) ;
+    prepare-framework-path $(<) ;
+}
+
+actions link.dll bind LIBRARIES
+{
+    "$(CONFIG_COMMAND)" -dynamiclib -Wl,-single_module -install_name "$(<:B)$(<:S)" -L"$(LINKPATH)" -o "$(<)" "$(>)" "$(LIBRARIES)" -l$(FINDLIBS-SA) -l$(FINDLIBS-ST) $(FRAMEWORK_PATH) -framework$(_)$(FRAMEWORK:D=:S=) $(OPTIONS) $(USER_OPTIONS)
+}
+
+# We use libtool instead of ar to support universal binary linking
+# TODO: Find a way to use the underlying tools, i.e. lipo, to do this.
+actions piecemeal archive
+{
+    "$(.LIBTOOL)" -static -o "$(<:T)"  $(ARFLAGS)  "$(>:T)"
+}
diff --git a/jam-files/boost-build/tools/darwin.py b/jam-files/boost-build/tools/darwin.py
new file mode 100644
index 00000000..c2919606
--- /dev/null
+++ b/jam-files/boost-build/tools/darwin.py
@@ -0,0 +1,57 @@
+#  Copyright (C) Christopher Currie 2003. Permission to copy, use,
+#  modify, sell and distribute this software is granted provided this
+#  copyright notice appears in all copies. This software is provided
+# "as is" without express or implied warranty, and with no claim as to
+#  its suitability for any purpose.
+
+#  Please see http://article.gmane.org/gmane.comp.lib.boost.build/3389/
+#  for explanation why it's a separate toolset.
+
+import common, gcc, builtin
+from b2.build import feature, toolset, type, action, generators
+from b2.util.utility import *
+
+toolset.register ('darwin')
+
+toolset.inherit_generators ('darwin', [], 'gcc')
+toolset.inherit_flags ('darwin', 'gcc')
+toolset.inherit_rules ('darwin', 'gcc')
+
+def init (version = None, command = None, options = None):
+    options = to_seq (options)
+
+    condition = common.check_init_parameters ('darwin', None, ('version', version))
+    
+    command = common.get_invocation_command ('darwin', 'g++', command)
+
+    common.handle_options ('darwin', condition, command, options)
+    
+    gcc.init_link_flags ('darwin', 'darwin', condition)
+
+# Darwin has a different shared library suffix
+type.set_generated_target_suffix ('SHARED_LIB', ['<toolset>darwin'], 'dylib')
+
+# we need to be able to tell the type of .dylib files
+type.register_suffixes ('dylib', 'SHARED_LIB')
+
+feature.feature ('framework', [], ['free'])
+
+toolset.flags ('darwin.compile', 'OPTIONS', '<link>shared', ['-dynamic'])
+toolset.flags ('darwin.compile', 'OPTIONS', None, ['-Wno-long-double', '-no-cpp-precomp'])
+toolset.flags ('darwin.compile.c++', 'OPTIONS', None, ['-fcoalesce-templates'])
+
+toolset.flags ('darwin.link', 'FRAMEWORK', '<framework>')
+
+# This is flag is useful for debugging the link step
+# uncomment to see what libtool is doing under the hood
+# toolset.flags ('darwin.link.dll', 'OPTIONS', None, '[-Wl,-v'])
+
+action.register ('darwin.compile.cpp', None, ['$(CONFIG_COMMAND) $(ST_OPTIONS) -L"$(LINKPATH)" -o "$(<)" "$(>)" "$(LIBRARIES)" -l$(FINDLIBS-SA) -l$(FINDLIBS-ST) -framework$(_)$(FRAMEWORK) $(OPTIONS)'])
+
+# TODO: how to set 'bind LIBRARIES'?
+action.register ('darwin.link.dll', None, ['$(CONFIG_COMMAND) -dynamiclib -L"$(LINKPATH)" -o "$(<)" "$(>)" "$(LIBRARIES)" -l$(FINDLIBS-SA) -l$(FINDLIBS-ST) -framework$(_)$(FRAMEWORK) $(OPTIONS)'])
+
+def darwin_archive (manager, targets, sources, properties):
+    pass
+
+action.register ('darwin.archive', darwin_archive, ['ar -c -r -s $(ARFLAGS) "$(<:T)" "$(>:T)"'])
diff --git a/jam-files/boost-build/tools/dmc.jam b/jam-files/boost-build/tools/dmc.jam
new file mode 100644
index 00000000..8af8725a
--- /dev/null
+++ b/jam-files/boost-build/tools/dmc.jam
@@ -0,0 +1,134 @@
+# Digital Mars C++
+
+# (C) Copyright Christof Meerwald 2003.
+# (C) Copyright Aleksey Gurtovoy 2004.
+# (C) Copyright Arjan Knepper 2006.
+#
+# Distributed under the Boost Software License, Version 1.0. (See
+# accompanying file LICENSE_1_0.txt or copy at
+# http://www.boost.org/LICENSE_1_0.txt)
+
+# The following #// line will be used by the regression test table generation
+# program as the column heading for HTML tables. Must not include version number.
+#//<a href="http://www.digitalmars.com/">Digital<br>Mars C++</a>
+
+import feature generators common ;
+import toolset : flags ;
+import sequence regex ;
+
+feature.extend toolset : dmc ;
+
+rule init ( version ? : command * : options * )
+{
+    local condition = [ common.check-init-parameters dmc : version $(version) ] ;
+    
+    local command = [ common.get-invocation-command dmc : dmc : $(command) ] ;
+    command ?= dmc ;
+
+    common.handle-options dmc : $(condition) : $(command) : $(options) ;   
+    
+    if $(command)
+    {
+        command = [ common.get-absolute-tool-path $(command[-1]) ] ;
+    }   
+    root = $(command:D) ;    
+    
+    if $(root)
+    {        
+        # DMC linker is sensitive the the direction of slashes, and
+        # won't link if forward slashes are used in command.
+        root = [ sequence.join [ regex.split $(root) "/" ] : "\\" ] ;
+        flags dmc .root $(condition) : $(root)\\bin\\ ;
+    }
+    else
+    {
+        flags dmc .root $(condition) : "" ;
+    }    
+}
+
+
+# Declare generators
+generators.register-linker dmc.link : OBJ SEARCHED_LIB STATIC_LIB IMPORT_LIB : EXE : <toolset>dmc ;
+generators.register-linker dmc.link.dll : OBJ SEARCHED_LIB STATIC_LIB IMPORT_LIB : SHARED_LIB IMPORT_LIB : <toolset>dmc ;
+
+generators.register-archiver dmc.archive : OBJ : STATIC_LIB : <toolset>dmc ;
+generators.register-c-compiler dmc.compile.c++ : CPP : OBJ : <toolset>dmc ;
+generators.register-c-compiler dmc.compile.c : C : OBJ : <toolset>dmc ;
+
+
+# Declare flags
+# dmc optlink has some limitation on the amount of debug-info included. Therefore only linenumbers are enabled in debug builds.
+# flags dmc.compile OPTIONS <debug-symbols>on : -g ;
+flags dmc.compile OPTIONS <debug-symbols>on : -gl ;
+flags dmc.link OPTIONS <debug-symbols>on : /CO /NOPACKF /DEBUGLI ;
+flags dmc.link OPTIONS <debug-symbols>off : /PACKF ;
+
+flags dmc.compile OPTIONS <optimization>off : -S -o+none ;
+flags dmc.compile OPTIONS <optimization>speed : -o+time ;
+flags dmc.compile OPTIONS <optimization>space : -o+space ;
+flags dmc.compile OPTIONS <exception-handling>on : -Ae ;
+flags dmc.compile OPTIONS <rtti>on : -Ar ;
+# FIXME:
+# Compiling sources to be linked into a shared lib (dll) the -WD cflag should be used
+# Compiling sources to be linked into a static lib (lib) or executable the -WA cflag should be used
+# But for some reason the -WD cflag is always in use.
+# flags dmc.compile OPTIONS <link>shared : -WD ;
+# flags dmc.compile OPTIONS <link>static : -WA ;
+
+# Note that these two options actually imply multithreading support on DMC
+# because there is no single-threaded dynamic runtime library. Specifying
+# <threading>multi would be a bad idea, though, because no option would be
+# matched when the build uses the default settings of <runtime-link>dynamic
+# and <threading>single.
+flags dmc.compile OPTIONS <runtime-debugging>off/<runtime-link>shared : -ND ;
+flags dmc.compile OPTIONS <runtime-debugging>on/<runtime-link>shared : -ND ;
+
+flags dmc.compile OPTIONS <runtime-debugging>off/<runtime-link>static/<threading>single : ;
+flags dmc.compile OPTIONS <runtime-debugging>on/<runtime-link>static/<threading>single : ;
+flags dmc.compile OPTIONS <runtime-debugging>off/<runtime-link>static/<threading>multi : -D_MT ;
+flags dmc.compile OPTIONS <runtime-debugging>on/<runtime-link>static/<threading>multi : -D_MT ;
+
+flags dmc.compile OPTIONS : <cflags> ;
+flags dmc.compile.c++ OPTIONS : <cxxflags> ;
+
+flags dmc.compile DEFINES : <define> ;
+flags dmc.compile INCLUDES : <include> ;
+
+flags dmc.link <linkflags> ;
+flags dmc.archive OPTIONS <arflags> ;
+
+flags dmc LIBPATH <library-path> ;
+flags dmc LIBRARIES <library-file> ;
+flags dmc FINDLIBS <find-library-sa> ;
+flags dmc FINDLIBS <find-library-st> ;
+
+actions together link bind LIBRARIES
+{
+    "$(.root)link" $(OPTIONS) /NOI /DE /XN "$(>)" , "$(<[1])" ,, $(LIBRARIES) user32.lib kernel32.lib "$(FINDLIBS:S=.lib)" , "$(<[2]:B).def"
+}
+
+actions together link.dll bind LIBRARIES
+{
+    echo LIBRARY "$(<[1])" > $(<[2]:B).def
+    echo DESCRIPTION 'A Library' >> $(<[2]:B).def
+    echo EXETYPE NT >> $(<[2]:B).def
+    echo SUBSYSTEM WINDOWS >> $(<[2]:B).def
+    echo CODE	EXECUTE READ >> $(<[2]:B).def
+    echo DATA	READ WRITE >> $(<[2]:B).def
+    "$(.root)link" $(OPTIONS) /NOI /DE /XN /ENTRY:_DllMainCRTStartup /IMPLIB:"$(<[2])" "$(>)" $(LIBRARIES) , "$(<[1])" ,, user32.lib kernel32.lib "$(FINDLIBS:S=.lib)" , "$(<[2]:B).def"
+}
+
+actions compile.c
+{
+    "$(.root)dmc"  -c $(OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -o"$(<)" "$(>)"
+}
+
+actions compile.c++
+{
+    "$(.root)dmc" -cpp -c -Ab $(OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -o"$(<)" "$(>)"
+}
+
+actions together piecemeal archive
+{
+    "$(.root)lib" $(OPTIONS) -c -n -p256 "$(<)" "$(>)"
+}
diff --git a/jam-files/boost-build/tools/docutils.jam b/jam-files/boost-build/tools/docutils.jam
new file mode 100644
index 00000000..bf061617
--- /dev/null
+++ b/jam-files/boost-build/tools/docutils.jam
@@ -0,0 +1,84 @@
+# Copyright David Abrahams 2004. Distributed under the Boost
+# Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+# Support for docutils ReStructuredText processing.
+
+import type ;
+import scanner ;
+import generators ;
+import os ;
+import common ;
+import toolset ;
+import path ;
+import feature : feature ;
+import property ;
+
+.initialized = ;
+
+type.register ReST : rst ;
+
+class rst-scanner : common-scanner
+{
+    rule __init__ ( paths * )
+    {
+        common-scanner.__init__ . $(paths) ;
+    }
+    
+    rule pattern ( )
+    {
+         return "^[ 	]*\\.\\.[ 	]+include::[ 	]+([^
+]+)"
+        "^[ 	]*\\.\\.[ 	]+image::[ 	]+([^
+]+)"
+        "^[ 	]*\\.\\.[ 	]+figure::[ 	]+([^
+]+)"
+        ;
+    }
+}
+
+scanner.register rst-scanner : include ;
+type.set-scanner ReST : rst-scanner ;
+
+generators.register-standard docutils.html : ReST : HTML ;
+
+rule init ( docutils-dir ? : tools-dir ? )
+{
+    docutils-dir ?= [ modules.peek : DOCUTILS_DIR ] ;
+    tools-dir ?= $(docutils-dir)/tools ;
+
+    if ! $(.initialized)
+    {
+        .initialized = true ;
+        .docutils-dir = $(docutils-dir) ;
+        .tools-dir = $(tools-dir:R="") ;
+       
+        .setup = [ 
+          common.prepend-path-variable-command PYTHONPATH 
+            : $(.docutils-dir) $(.docutils-dir)/extras ] ;
+    }
+}
+
+rule html ( target : source : properties *  )
+{
+    if ! [ on $(target) return $(RST2XXX) ]
+    {
+        local python-cmd = [ property.select <python.interpreter> : $(properties) ] ;
+        RST2XXX on $(target) = $(python-cmd:G=:E="python") $(.tools-dir)/rst2html.py ;
+    }
+}
+
+
+feature docutils : : free ;
+feature docutils-html : : free ;
+feature docutils-cmd : : free ;
+toolset.flags docutils COMMON-FLAGS : <docutils> ;
+toolset.flags docutils HTML-FLAGS : <docutils-html> ;
+toolset.flags docutils RST2XXX : <docutils-cmd> ;
+  
+actions html
+{
+    $(.setup)
+    "$(RST2XXX)" $(COMMON-FLAGS) $(HTML-FLAGS) $(>) $(<)
+}
+
diff --git a/jam-files/boost-build/tools/doxproc.py b/jam-files/boost-build/tools/doxproc.py
new file mode 100644
index 00000000..4cbd5edd
--- /dev/null
+++ b/jam-files/boost-build/tools/doxproc.py
@@ -0,0 +1,859 @@
+#!/usr/bin/python
+# Copyright 2006 Rene Rivera
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+'''
+Processing of Doxygen generated XML.
+'''
+
+import os
+import os.path
+import sys
+import time
+import string
+import getopt
+import glob
+import re
+import xml.dom.minidom
+
+    
+def usage():
+    print '''
+Usage:
+    %s options
+
+Options:
+    --xmldir        Directory with the Doxygen xml result files.
+    --output        Write the output BoostBook to the given location.
+    --id            The ID of the top level BoostBook section.
+    --title         The title of the top level BoostBook section.
+    --enable-index  Generate additional index sections for classes and
+                    types.
+''' % ( sys.argv[0] )
+
+
+def get_args( argv = sys.argv[1:] ):
+    spec = [
+        'xmldir=',
+        'output=',
+        'id=',
+        'title=',
+        'enable-index',
+        'help' ]
+    options = {
+        '--xmldir' : 'xml',
+        '--output' : None,
+        '--id' : 'dox',
+        '--title' : 'Doxygen'
+        }
+    ( option_pairs, other ) = getopt.getopt( argv, '', spec )
+    map( lambda x: options.__setitem__( x[0], x[1] ), option_pairs )
+    
+    if options.has_key( '--help' ):
+        usage()
+        sys.exit(1)
+    
+    return {
+        'xmldir' : options['--xmldir'],
+        'output' : options['--output'],
+        'id' : options['--id'],
+        'title' : options['--title'],
+        'index' : options.has_key('--enable-index')
+        }
+
+def if_attribute(node, attribute, true_value, false_value=None):
+    if node.getAttribute(attribute) == 'yes':
+        return true_value
+    else:
+        return false_value
+
+class Doxygen2BoostBook:
+    
+    def __init__( self, **kwargs ):
+        ##
+        self.args = kwargs
+        self.args.setdefault('id','')
+        self.args.setdefault('title','')
+        self.args.setdefault('last_revision', time.asctime())
+        self.args.setdefault('index', False)
+        self.id = '%(id)s.reference' % self.args
+        self.args['id'] = self.id
+        #~ This is our template BoostBook document we insert the generated content into.
+        self.boostbook = xml.dom.minidom.parseString('''<?xml version="1.0" encoding="UTF-8"?>
+<section id="%(id)s" name="%(title)s" last-revision="%(last_revision)s">
+    <title>%(title)s</title>
+    <library-reference id="%(id)s.headers">
+        <title>Headers</title>
+    </library-reference>
+    <index id="%(id)s.classes">
+        <title>Classes</title>
+    </index>
+    <index id="%(id)s.index">
+        <title>Index</title>
+    </index>
+</section>
+''' % self.args )
+        self.section = {
+            'headers' : self._getChild('library-reference',id='%(id)s.headers' % self.args),
+            'classes' : self._getChild('index',id='%(id)s.classes' % self.args),
+            'index' : self._getChild('index',id='%(id)s.index' % self.args)
+            }
+        #~ Remove the index sections if we aren't generating it.
+        if not self.args['index']:
+            self.section['classes'].parentNode.removeChild(self.section['classes'])
+            self.section['classes'].unlink()
+            del self.section['classes']
+            self.section['index'].parentNode.removeChild(self.section['index'])
+            self.section['index'].unlink()
+            del self.section['index']
+        #~ The symbols, per Doxygen notion, that we translated.
+        self.symbols = {}
+        #~ Map of Doxygen IDs and BoostBook IDs, so we can translate as needed.
+        self.idmap = {}
+        #~ Marks generation, to prevent redoing it.
+        self.generated = False
+    
+    #~ Add an Doxygen generated XML document to the content we are translating.
+    def addDox( self, document ):
+        self._translateNode(document.documentElement)
+    
+    #~ Turns the internal XML tree into an output UTF-8 string.
+    def tostring( self ):
+        self._generate()
+        #~ return self.boostbook.toprettyxml('  ')
+        return self.boostbook.toxml('utf-8')
+    
+    #~ Does post-processing on the partial generated content to generate additional info
+    #~ now that we have the complete source documents.
+    def _generate( self ):
+        if not self.generated:
+            self.generated = True
+            symbols = self.symbols.keys()
+            symbols.sort()
+            #~ Populate the header section.
+            for symbol in symbols:
+                if self.symbols[symbol]['kind'] in ('header'):
+                    self.section['headers'].appendChild(self.symbols[symbol]['dom'])
+            for symbol in symbols:
+                if self.symbols[symbol]['kind'] not in ('namespace', 'header'):
+                    container = self._resolveContainer(self.symbols[symbol],
+                        self.symbols[self.symbols[symbol]['header']]['dom'])
+                    if container.nodeName != 'namespace':
+                        ## The current BoostBook to Docbook translation doesn't
+                        ## respect, nor assign, IDs to inner types of any kind.
+                        ## So nuke the ID entry so as not create bogus links.
+                        del self.idmap[self.symbols[symbol]['id']]
+                    container.appendChild(self.symbols[symbol]['dom'])
+            self._rewriteIDs(self.boostbook.documentElement)
+    
+    #~ Rewrite the various IDs from Doxygen references to the newly created
+    #~ BoostBook references.
+    def _rewriteIDs( self, node ):
+        if node.nodeName in ('link'):
+            if (self.idmap.has_key(node.getAttribute('linkend'))):
+                #~ A link, and we have someplace to repoint it at.
+                node.setAttribute('linkend',self.idmap[node.getAttribute('linkend')])
+            else:
+                #~ A link, but we don't have a generated target for it.
+                node.removeAttribute('linkend')
+        elif hasattr(node,'hasAttribute') and node.hasAttribute('id') and self.idmap.has_key(node.getAttribute('id')):
+            #~ Simple ID, and we have a translation.
+            node.setAttribute('id',self.idmap[node.getAttribute('id')])
+        #~ Recurse, and iterate, depth-first traversal which turns out to be
+        #~ left-to-right and top-to-bottom for the document.
+        if node.firstChild:
+            self._rewriteIDs(node.firstChild)
+        if node.nextSibling:
+            self._rewriteIDs(node.nextSibling)
+    
+    def _resolveContainer( self, cpp, root ):
+        container = root
+        for ns in cpp['namespace']:
+            node = self._getChild('namespace',name=ns,root=container)
+            if not node:
+                node = container.appendChild(
+                    self._createNode('namespace',name=ns))
+            container = node
+        for inner in cpp['name'].split('::'):
+            node = self._getChild(name=inner,root=container)
+            if not node:
+                break
+            container = node
+        return container
+    
+    def _setID( self, id, name ):
+        self.idmap[id] = name.replace('::','.').replace('/','.')
+        #~ print '--| setID:',id,'::',self.idmap[id]
+    
+    #~ Translate a given node within a given context.
+    #~ The translation dispatches to a local method of the form
+    #~ "_translate[_context0,...,_contextN]", and the keyword args are
+    #~ passed along. If there is no translation handling method we
+    #~ return None.
+    def _translateNode( self, *context, **kwargs ):
+        node = None
+        names = [ ]
+        for c in context:
+            if c:
+                if not isinstance(c,xml.dom.Node):
+                    suffix = '_'+c.replace('-','_')
+                else:
+                    suffix = '_'+c.nodeName.replace('-','_')
+                    node = c
+                names.append('_translate')
+                names = map(lambda x: x+suffix,names)
+        if node:
+            for name in names:
+                if hasattr(self,name):
+                    return getattr(self,name)(node,**kwargs)
+        return None
+    
+    #~ Translates the children of the given parent node, appending the results
+    #~ to the indicated target. For nodes not translated by the translation method
+    #~ it copies the child over and recurses on that child to translate any
+    #~ possible interior nodes. Hence this will translate the entire subtree.
+    def _translateChildren( self, parent, **kwargs ):
+        target = kwargs['target']
+        for n in parent.childNodes:
+            child = self._translateNode(n,target=target)
+            if child:
+                target.appendChild(child)
+            else:
+                child = n.cloneNode(False)
+                if hasattr(child,'data'):
+                    child.data = re.sub(r'\s+',' ',child.data)
+                target.appendChild(child)
+                self._translateChildren(n,target=child)
+    
+    #~ Translate the given node as a description, into the description subnode
+    #~ of the target. If no description subnode is present in the target it
+    #~ is created.
+    def _translateDescription( self, node, target=None, tag='description', **kwargs ):
+        description = self._getChild(tag,root=target)
+        if not description:
+            description = target.appendChild(self._createNode(tag))
+        self._translateChildren(node,target=description)
+        return description
+    
+    #~ Top level translation of: <doxygen ...>...</doxygen>,
+    #~ translates the children.
+    def _translate_doxygen( self, node ):
+        #~ print '_translate_doxygen:', node.nodeName
+        result = []
+        for n in node.childNodes:
+            newNode = self._translateNode(n)
+            if newNode:
+                result.append(newNode)
+        return result
+    
+    #~ Top level translation of:
+    #~ <doxygenindex ...>
+    #~   <compound ...>
+    #~     <member ...>
+    #~       <name>...</name>
+    #~     </member>
+    #~     ...
+    #~   </compound>
+    #~   ...
+    #~ </doxygenindex>
+    #~ builds the class and symbol sections, if requested.
+    def _translate_doxygenindex( self, node ):
+        #~ print '_translate_doxygenindex:', node.nodeName
+        if self.args['index']:
+            entries = []
+            classes = []
+            #~ Accumulate all the index entries we care about.
+            for n in node.childNodes:
+                if n.nodeName == 'compound':
+                    if n.getAttribute('kind') not in ('file','dir','define'):
+                        cpp = self._cppName(self._getChildData('name',root=n))
+                        entry = {
+                            'name' : cpp['name'],
+                            'compoundname' : cpp['compoundname'],
+                            'id' : n.getAttribute('refid')
+                            }
+                        if n.getAttribute('kind') in ('class','struct'):
+                            classes.append(entry)
+                        entries.append(entry)
+                        for m in n.childNodes:
+                            if m.nodeName == 'member':
+                                cpp = self._cppName(self._getChildData('name',root=m))
+                                entry = {
+                                    'name' : cpp['name'],
+                                    'compoundname' : cpp['compoundname'],
+                                    'id' : n.getAttribute('refid')
+                                    }
+                                if hasattr(m,'getAttribute') and m.getAttribute('kind') in ('class','struct'):
+                                    classes.append(entry)
+                                entries.append(entry)
+            #~ Put them in a sensible order.
+            entries.sort(lambda x,y: cmp(x['name'].lower(),y['name'].lower()))
+            classes.sort(lambda x,y: cmp(x['name'].lower(),y['name'].lower()))
+            #~ And generate the BoostBook for them.
+            self._translate_index_(entries,target=self.section['index'])
+            self._translate_index_(classes,target=self.section['classes'])
+        return None
+    
+    #~ Translate a set of index entries in the BoostBook output. The output
+    #~ is grouped into groups of the first letter of the entry names.
+    def _translate_index_(self, entries, target=None, **kwargs ):
+        i = 0
+        targetID = target.getAttribute('id')
+        while i < len(entries):
+            dividerKey = entries[i]['name'][0].upper()
+            divider = target.appendChild(self._createNode('indexdiv',id=targetID+'.'+dividerKey))
+            divider.appendChild(self._createText('title',dividerKey))
+            while i < len(entries) and dividerKey == entries[i]['name'][0].upper():
+                iename = entries[i]['name']
+                ie = divider.appendChild(self._createNode('indexentry'))
+                ie = ie.appendChild(self._createText('primaryie',iename))
+                while i < len(entries) and entries[i]['name'] == iename:
+                    ie.appendChild(self.boostbook.createTextNode(' ('))
+                    ie.appendChild(self._createText(
+                        'link',entries[i]['compoundname'],linkend=entries[i]['id']))
+                    ie.appendChild(self.boostbook.createTextNode(')'))
+                    i += 1
+    
+    #~ Translate a <compounddef ...>...</compounddef>,
+    #~ by retranslating with the "kind" of compounddef.
+    def _translate_compounddef( self, node, target=None, **kwargs ):
+        return self._translateNode(node,node.getAttribute('kind'))
+    
+    #~ Translate a <compounddef kind="namespace"...>...</compounddef>. For
+    #~ namespaces we just collect the information for later use as there is no
+    #~ currently namespaces are not included in the BoostBook format. In the future
+    #~ it might be good to generate a namespace index.
+    def _translate_compounddef_namespace( self, node, target=None, **kwargs ):
+        namespace = {
+            'id' : node.getAttribute('id'),
+            'kind' : 'namespace',
+            'name' : self._getChildData('compoundname',root=node),
+            'brief' : self._getChildData('briefdescription',root=node),
+            'detailed' : self._getChildData('detaileddescription',root=node),
+            'parsed' : False
+            }
+        if self.symbols.has_key(namespace['name']):
+            if not self.symbols[namespace['name']]['parsed']:
+                self.symbols[namespace['name']]['parsed'] = True
+                #~ for n in node.childNodes:
+                    #~ if hasattr(n,'getAttribute'):
+                        #~ self._translateNode(n,n.getAttribute('kind'),target=target,**kwargs)
+        else:
+            self.symbols[namespace['name']] = namespace
+            #~ self._setID(namespace['id'],namespace['name'])
+        return None
+    
+    #~ Translate a <compounddef kind="class"...>...</compounddef>, which
+    #~ forwards to the kind=struct as they are the same.
+    def _translate_compounddef_class( self, node, target=None, **kwargs ):
+        return self._translate_compounddef_struct(node,tag='class',target=target,**kwargs)
+    
+    #~ Translate a <compounddef kind="struct"...>...</compounddef> into:
+    #~ <header id="?" name="?">
+    #~   <struct name="?">
+    #~     ...
+    #~   </struct>
+    #~ </header>
+    def _translate_compounddef_struct( self, node, tag='struct', target=None, **kwargs ):
+        result = None
+        includes = self._getChild('includes',root=node)
+        if includes:
+            ## Add the header into the output table.
+            self._translate_compounddef_includes_(includes,includes,**kwargs)
+            ## Compounds are the declared symbols, classes, types, etc.
+            ## We add them to the symbol table, along with the partial DOM for them
+            ## so that they can be organized into the output later.
+            compoundname = self._getChildData('compoundname',root=node)
+            compoundname = self._cppName(compoundname)
+            self._setID(node.getAttribute('id'),compoundname['compoundname'])
+            struct = self._createNode(tag,name=compoundname['name'].split('::')[-1])
+            self.symbols[compoundname['compoundname']] = {
+                'header' : includes.firstChild.data,
+                'namespace' : compoundname['namespace'],
+                'id' : node.getAttribute('id'),
+                'kind' : tag,
+                'name' : compoundname['name'],
+                'dom' : struct
+                }
+            ## Add the children which will be the members of the struct.
+            for n in node.childNodes:
+                self._translateNode(n,target=struct,scope=compoundname['compoundname'])
+            result = struct
+        return result
+    
+    #~ Translate a <compounddef ...><includes ...>...</includes></compounddef>,
+    def _translate_compounddef_includes_( self, node, target=None, **kwargs ):
+        name = node.firstChild.data
+        if not self.symbols.has_key(name):
+            self._setID(node.getAttribute('refid'),name)
+            self.symbols[name] = {
+                'kind' : 'header',
+                'id' : node.getAttribute('refid'),
+                'dom' : self._createNode('header',
+                    id=node.getAttribute('refid'),
+                    name=name)
+                }
+        return None
+    
+    #~ Translate a <basecompoundref...>...</basecompoundref> into:
+    #~ <inherit access="?">
+    #~   ...
+    #~ </inherit>
+    def _translate_basecompoundref( self, ref, target=None, **kwargs ):
+        inherit = target.appendChild(self._createNode('inherit',
+            access=ref.getAttribute('prot')))
+        self._translateChildren(ref,target=inherit)
+        return
+    
+    #~ Translate:
+    #~   <templateparamlist>
+    #~     <param>
+    #~       <type>...</type>
+    #~       <declname>...</declname>
+    #~       <defname>...</defname>
+    #~       <defval>...</defval>
+    #~     </param>
+    #~     ...
+    #~   </templateparamlist>
+    #~ Into:
+    #~   <template>
+    #~     <template-type-parameter name="?" />
+    #~     <template-nontype-parameter name="?">
+    #~       <type>?</type>
+    #~       <default>?</default>
+    #~     </template-nontype-parameter>
+    #~   </template>
+    def _translate_templateparamlist( self, templateparamlist, target=None, **kwargs ):
+        template = target.appendChild(self._createNode('template'))
+        for param in templateparamlist.childNodes:
+            if param.nodeName == 'param':
+                type = self._getChildData('type',root=param)
+                defval = self._getChild('defval',root=param)
+                paramKind = None
+                if type in ('class','typename'):
+                    paramKind = 'template-type-parameter'
+                else:
+                    paramKind = 'template-nontype-parameter'
+                templateParam = template.appendChild(
+                    self._createNode(paramKind,
+                        name=self._getChildData('declname',root=param)))
+                if paramKind == 'template-nontype-parameter':
+                    template_type = templateParam.appendChild(self._createNode('type'))
+                    self._translate_type(
+                        self._getChild('type',root=param),target=template_type)
+                if defval:
+                    value = self._getChildData('ref',root=defval.firstChild)
+                    if not value:
+                        value = self._getData(defval)
+                    templateParam.appendChild(self._createText('default',value))
+        return template
+    
+    #~ Translate:
+    #~   <briefdescription>...</briefdescription>
+    #~ Into:
+    #~   <purpose>...</purpose>
+    def _translate_briefdescription( self, brief, target=None, **kwargs ):
+        self._translateDescription(brief,target=target,**kwargs)
+        return self._translateDescription(brief,target=target,tag='purpose',**kwargs)
+    
+    #~ Translate:
+    #~   <detaileddescription>...</detaileddescription>
+    #~ Into:
+    #~   <description>...</description>
+    def _translate_detaileddescription( self, detailed, target=None, **kwargs ):
+        return self._translateDescription(detailed,target=target,**kwargs)
+    
+    #~ Translate:
+    #~   <sectiondef kind="?">...</sectiondef>
+    #~ With kind specific translation.
+    def _translate_sectiondef( self, sectiondef, target=None, **kwargs ):
+        self._translateNode(sectiondef,sectiondef.getAttribute('kind'),target=target,**kwargs)
+    
+    #~ Translate non-function sections.
+    def _translate_sectiondef_x_( self, sectiondef, target=None, **kwargs ):
+        for n in sectiondef.childNodes:
+            if hasattr(n,'getAttribute'):
+                self._translateNode(n,n.getAttribute('kind'),target=target,**kwargs)
+        return None
+    
+    #~ Translate:
+    #~   <sectiondef kind="public-type">...</sectiondef>
+    def _translate_sectiondef_public_type( self, sectiondef, target=None, **kwargs ):
+        return self._translate_sectiondef_x_(sectiondef,target=target,**kwargs)
+    
+    #~ Translate:
+    #~   <sectiondef kind="public-sttrib">...</sectiondef>
+    def _translate_sectiondef_public_attrib( self, sectiondef, target=None, **kwargs):
+        return self._translate_sectiondef_x_(sectiondef,target=target,**kwargs)
+    
+    #~ Translate:
+    #~   <sectiondef kind="?-func">...</sectiondef>
+    #~ All the various function group translations end up here for which
+    #~ they are translated into:
+    #~   <method-group name="?">
+    #~   ...
+    #~   </method-group>
+    def _translate_sectiondef_func_( self, sectiondef, name='functions', target=None, **kwargs ):
+        members = target.appendChild(self._createNode('method-group',name=name))
+        for n in sectiondef.childNodes:
+            if hasattr(n,'getAttribute'):
+                self._translateNode(n,n.getAttribute('kind'),target=members,**kwargs)
+        return members
+    
+    #~ Translate:
+    #~   <sectiondef kind="public-func">...</sectiondef>
+    def _translate_sectiondef_public_func( self, sectiondef, target=None, **kwargs ):
+        return self._translate_sectiondef_func_(sectiondef,
+            name='public member functions',target=target,**kwargs)
+    
+    #~ Translate:
+    #~   <sectiondef kind="public-static-func">...</sectiondef>
+    def _translate_sectiondef_public_static_func( self, sectiondef, target=None, **kwargs):
+        return self._translate_sectiondef_func_(sectiondef,
+            name='public static functions',target=target,**kwargs)
+    
+    #~ Translate:
+    #~   <sectiondef kind="protected-func">...</sectiondef>
+    def _translate_sectiondef_protected_func( self, sectiondef, target=None, **kwargs ):
+        return self._translate_sectiondef_func_(sectiondef,
+            name='protected member functions',target=target,**kwargs)
+    
+    #~ Translate:
+    #~   <sectiondef kind="private-static-func">...</sectiondef>
+    def _translate_sectiondef_private_static_func( self, sectiondef, target=None, **kwargs):
+        return self._translate_sectiondef_func_(sectiondef,
+            name='private static functions',target=target,**kwargs)
+    
+    #~ Translate:
+    #~   <sectiondef kind="public-func">...</sectiondef>
+    def _translate_sectiondef_private_func( self, sectiondef, target=None, **kwargs ):
+        return self._translate_sectiondef_func_(sectiondef,
+            name='private member functions',target=target,**kwargs)
+
+    #~ Translate:
+    #~   <sectiondef kind="user-defined"><header>...</header>...</sectiondef>
+    def _translate_sectiondef_user_defined( self, sectiondef, target=None, **kwargs ):
+        return self._translate_sectiondef_func_(sectiondef,
+            name=self._getChildData('header', root=sectiondef),target=target,**kwargs)
+    
+    #~ Translate:
+    #~   <memberdef kind="typedef" id="?">
+    #~     <name>...</name>
+    #~   </memberdef>
+    #~ To:
+    #~   <typedef id="?" name="?">
+    #~     <type>...</type>
+    #~   </typedef>
+    def _translate_memberdef_typedef( self, memberdef, target=None, scope=None, **kwargs ):
+        self._setID(memberdef.getAttribute('id'),
+            scope+'::'+self._getChildData('name',root=memberdef))
+        typedef = target.appendChild(self._createNode('typedef',
+            id=memberdef.getAttribute('id'),
+            name=self._getChildData('name',root=memberdef)))
+        typedef_type = typedef.appendChild(self._createNode('type'))
+        self._translate_type(self._getChild('type',root=memberdef),target=typedef_type)
+        return typedef
+    
+    #~ Translate:
+    #~   <memberdef kind="function" id="?" const="?" static="?" explicit="?" inline="?">
+    #~     <name>...</name>
+    #~   </memberdef>
+    #~ To:
+    #~   <method name="?" cv="?" specifiers="?">
+    #~     ...
+    #~   </method>
+    def _translate_memberdef_function( self, memberdef, target=None, scope=None, **kwargs ):
+        name = self._getChildData('name',root=memberdef)
+        self._setID(memberdef.getAttribute('id'),scope+'::'+name)
+        ## Check if we have some specific kind of method.
+        if name == scope.split('::')[-1]:
+            kind = 'constructor'
+            target = target.parentNode
+        elif name == '~'+scope.split('::')[-1]:
+            kind = 'destructor'
+            target = target.parentNode
+        elif name == 'operator=':
+            kind = 'copy-assignment'
+            target = target.parentNode
+        else:
+            kind = 'method'
+        method = target.appendChild(self._createNode(kind,
+            # id=memberdef.getAttribute('id'),
+            name=name,
+            cv=' '.join([
+                if_attribute(memberdef,'const','const','').strip()
+                ]),
+            specifiers=' '.join([
+                if_attribute(memberdef,'static','static',''),
+                if_attribute(memberdef,'explicit','explicit',''),
+                if_attribute(memberdef,'inline','inline','')
+                ]).strip()
+            ))
+        ## We iterate the children to translate each part of the function.
+        for n in memberdef.childNodes:
+            self._translateNode(memberdef,'function',n,target=method)
+        return method
+    
+    #~ Translate:
+    #~   <memberdef kind="function"...><templateparamlist>...</templateparamlist></memberdef>
+    def _translate_memberdef_function_templateparamlist(
+        self, templateparamlist, target=None, **kwargs ):
+        return self._translate_templateparamlist(templateparamlist,target=target,**kwargs)
+    
+    #~ Translate:
+    #~   <memberdef kind="function"...><type>...</type></memberdef>
+    #~ To:
+    #~   ...<type>?</type>
+    def _translate_memberdef_function_type( self, resultType, target=None, **kwargs ):
+        methodType = self._createNode('type')
+        self._translate_type(resultType,target=methodType)
+        if methodType.hasChildNodes():
+            target.appendChild(methodType)
+        return methodType
+    
+    #~ Translate:
+    #~   <memberdef kind="function"...><briefdescription>...</briefdescription></memberdef>
+    def _translate_memberdef_function_briefdescription( self, description, target=None, **kwargs ):
+        result = self._translateDescription(description,target=target,**kwargs)
+        ## For functions if we translate the brief docs to the purpose they end up
+        ## right above the regular description. And since we just added the brief to that
+        ## on the previous line, don't bother with the repetition.
+        # result = self._translateDescription(description,target=target,tag='purpose',**kwargs)
+        return result
+    
+    #~ Translate:
+    #~   <memberdef kind="function"...><detaileddescription>...</detaileddescription></memberdef>
+    def _translate_memberdef_function_detaileddescription( self, description, target=None, **kwargs ):
+        return self._translateDescription(description,target=target,**kwargs)
+    
+    #~ Translate:
+    #~   <memberdef kind="function"...><inbodydescription>...</inbodydescription></memberdef>
+    def _translate_memberdef_function_inbodydescription( self, description, target=None, **kwargs ):
+        return self._translateDescription(description,target=target,**kwargs)
+    
+    #~ Translate:
+    #~   <memberdef kind="function"...><param>...</param></memberdef>
+    def _translate_memberdef_function_param( self, param, target=None, **kwargs ):
+        return self._translate_param(param,target=target,**kwargs)
+    
+    #~ Translate:
+    #~   <memberdef kind="variable" id="?">
+    #~     <name>...</name>
+    #~     <type>...</type>
+    #~   </memberdef>
+    #~ To:
+    #~   <data-member id="?" name="?">
+    #~     <type>...</type>
+    #~   </data-member>
+    def _translate_memberdef_variable( self, memberdef, target=None, scope=None, **kwargs ):
+        self._setID(memberdef.getAttribute('id'),
+            scope+'::'+self._getChildData('name',root=memberdef))
+        data_member = target.appendChild(self._createNode('data-member',
+            id=memberdef.getAttribute('id'),
+            name=self._getChildData('name',root=memberdef)))
+        data_member_type = data_member.appendChild(self._createNode('type'))
+        self._translate_type(self._getChild('type',root=memberdef),target=data_member_type)
+    
+    #~ Translate:
+    #~   <memberdef kind="enum" id="?">
+    #~     <name>...</name>
+    #~     ...
+    #~   </memberdef>
+    #~ To:
+    #~   <enum id="?" name="?">
+    #~     ...
+    #~   </enum>
+    def _translate_memberdef_enum( self, memberdef, target=None, scope=None, **kwargs ):
+        self._setID(memberdef.getAttribute('id'),
+            scope+'::'+self._getChildData('name',root=memberdef))
+        enum = target.appendChild(self._createNode('enum',
+            id=memberdef.getAttribute('id'),
+            name=self._getChildData('name',root=memberdef)))
+        for n in memberdef.childNodes:
+            self._translateNode(memberdef,'enum',n,target=enum,scope=scope,**kwargs)
+        return enum
+    
+    #~ Translate:
+    #~   <memberdef kind="enum"...>
+    #~     <enumvalue id="?">
+    #~       <name>...</name>
+    #~       <initializer>...</initializer>
+    #~     </enumvalue>
+    #~   </memberdef>
+    #~ To:
+    #~   <enumvalue id="?" name="?">
+    #~     <default>...</default>
+    #~   </enumvalue>
+    def _translate_memberdef_enum_enumvalue( self, enumvalue, target=None, scope=None, **kwargs ):
+        self._setID(enumvalue.getAttribute('id'),
+            scope+'::'+self._getChildData('name',root=enumvalue))
+        value = target.appendChild(self._createNode('enumvalue',
+            id=enumvalue.getAttribute('id'),
+            name=self._getChildData('name',root=enumvalue)))
+        initializer = self._getChild('initializer',root=enumvalue)
+        if initializer:
+            self._translateChildren(initializer,
+                target=target.appendChild(self._createNode('default')))
+        return value
+    
+    #~ Translate:
+    #~   <param>
+    #~     <type>...</type>
+    #~     <declname>...</declname>
+    #~     <defval>...</defval>
+    #~   </param>
+    #~ To:
+    #~   <parameter name="?">
+    #~     <paramtype>...</paramtype>
+    #~     ...
+    #~   </parameter>
+    def _translate_param( self, param, target=None, **kwargs):
+        parameter = target.appendChild(self._createNode('parameter',
+            name=self._getChildData('declname',root=param)))
+        paramtype = parameter.appendChild(self._createNode('paramtype'))
+        self._translate_type(self._getChild('type',root=param),target=paramtype)
+        defval = self._getChild('defval',root=param)
+        if defval:
+            self._translateChildren(self._getChild('defval',root=param),target=parameter)
+        return parameter
+    
+    #~ Translate:
+    #~   <ref kindref="?" ...>...</ref>
+    def _translate_ref( self, ref, **kwargs ):
+        return self._translateNode(ref,ref.getAttribute('kindref'))
+    
+    #~ Translate:
+    #~   <ref refid="?" kindref="compound">...</ref>
+    #~ To:
+    #~   <link linkend="?"><classname>...</classname></link>
+    def _translate_ref_compound( self, ref, **kwargs ):
+        result = self._createNode('link',linkend=ref.getAttribute('refid'))
+        classname = result.appendChild(self._createNode('classname'))
+        self._translateChildren(ref,target=classname)
+        return result
+    
+    #~ Translate:
+    #~   <ref refid="?" kindref="member">...</ref>
+    #~ To:
+    #~   <link linkend="?">...</link>
+    def _translate_ref_member( self, ref, **kwargs ):
+        result = self._createNode('link',linkend=ref.getAttribute('refid'))
+        self._translateChildren(ref,target=result)
+        return result
+    
+    #~ Translate:
+    #~   <type>...</type>
+    def _translate_type( self, type, target=None, **kwargs ):
+        result = self._translateChildren(type,target=target,**kwargs)
+        #~ Filter types to clean up various readability problems, most notably
+        #~ with really long types.
+        xml = target.toxml('utf-8');
+        if (
+            xml.startswith('<type>boost::mpl::') or
+            xml.startswith('<type>BOOST_PP_') or
+            re.match('<type>boost::(lazy_)?(enable|disable)_if',xml)
+            ):
+            while target.firstChild:
+                target.removeChild(target.firstChild)
+            target.appendChild(self._createText('emphasis','unspecified'))
+        return result
+    
+    def _getChild( self, tag = None, id = None, name = None, root = None ):
+        if not root:
+            root = self.boostbook.documentElement
+        for n in root.childNodes:
+            found = True
+            if tag and found:
+                found = found and tag == n.nodeName
+            if id and found:
+                if n.hasAttribute('id'):
+                    found = found and n.getAttribute('id') == id
+                else:
+                    found = found and n.hasAttribute('id') and n.getAttribute('id') == id
+            if name and found:
+                found = found and n.hasAttribute('name') and n.getAttribute('name') == name
+            if found:
+                #~ print '--|', n
+                return n
+        return None
+    
+    def _getChildData( self, tag, **kwargs ):
+        return self._getData(self._getChild(tag,**kwargs),**kwargs)
+    
+    def _getData( self, node, **kwargs ):
+        if node:
+            text = self._getChild('#text',root=node)
+            if text:
+                return text.data.strip()
+        return ''
+    
+    def _cppName( self, type ):
+        parts = re.search('^([^<]+)[<]?(.*)[>]?$',type.strip().strip(':'))
+        result = {
+            'compoundname' : parts.group(1),
+            'namespace' : parts.group(1).split('::')[0:-1],
+            'name' : parts.group(1).split('::')[-1],
+            'specialization' : parts.group(2)
+            }
+        if result['namespace'] and len(result['namespace']) > 0:
+            namespace = '::'.join(result['namespace'])
+            while (
+                len(result['namespace']) > 0 and (
+                    not self.symbols.has_key(namespace) or
+                    self.symbols[namespace]['kind'] != 'namespace')
+                ):
+                result['name'] = result['namespace'].pop()+'::'+result['name']
+                namespace = '::'.join(result['namespace'])
+        return result
+    
+    def _createNode( self, tag, **kwargs ):
+        result = self.boostbook.createElement(tag)
+        for k in kwargs.keys():
+            if kwargs[k] != '':
+                if k == 'id':
+                    result.setAttribute('id',kwargs[k])
+                else:
+                    result.setAttribute(k,kwargs[k])
+        return result
+    
+    def _createText( self, tag, data, **kwargs ):
+        result = self._createNode(tag,**kwargs)
+        data = data.strip()
+        if len(data) > 0:
+            result.appendChild(self.boostbook.createTextNode(data))
+        return result
+
+
+def main( xmldir=None, output=None, id=None, title=None, index=False ):
+    #~ print '--- main: xmldir = %s, output = %s' % (xmldir,output)
+    
+    input = glob.glob( os.path.abspath( os.path.join( xmldir, "*.xml" ) ) )
+    input.sort
+    translator = Doxygen2BoostBook(id=id, title=title, index=index)
+    #~ Feed in the namespaces first to build up the set of namespaces
+    #~ and definitions so that lookup is unambiguous when reading in the definitions.
+    namespace_files = filter(
+        lambda x:
+            os.path.basename(x).startswith('namespace'),
+        input)
+    decl_files = filter(
+        lambda x:
+            not os.path.basename(x).startswith('namespace') and not os.path.basename(x).startswith('_'),
+        input)
+    for dox in namespace_files:
+        #~ print '--|',os.path.basename(dox)
+        translator.addDox(xml.dom.minidom.parse(dox))
+    for dox in decl_files:
+        #~ print '--|',os.path.basename(dox)
+        translator.addDox(xml.dom.minidom.parse(dox))
+    
+    if output:
+        output = open(output,'w')
+    else:
+        output = sys.stdout
+    if output:
+        output.write(translator.tostring())
+
+
+main( **get_args() )
diff --git a/jam-files/boost-build/tools/doxygen-config.jam b/jam-files/boost-build/tools/doxygen-config.jam
new file mode 100644
index 00000000..2cd2ccae
--- /dev/null
+++ b/jam-files/boost-build/tools/doxygen-config.jam
@@ -0,0 +1,11 @@
+#~ Copyright 2005, 2006 Rene Rivera.
+#~ Distributed under the Boost Software License, Version 1.0.
+#~ (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+# Automatic configuration for Doxygen tools. To use, just import this module.
+
+import toolset : using ;
+
+ECHO "warning: doxygen-config.jam is deprecated. Use 'using doxygen ;' instead." ;
+
+using doxygen ;
diff --git a/jam-files/boost-build/tools/doxygen.jam b/jam-files/boost-build/tools/doxygen.jam
new file mode 100644
index 00000000..8394848d
--- /dev/null
+++ b/jam-files/boost-build/tools/doxygen.jam
@@ -0,0 +1,776 @@
+# Copyright 2003, 2004 Douglas Gregor
+# Copyright 2003, 2004, 2005 Vladimir Prus
+# Copyright 2006 Rene Rivera
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+# This module defines rules to handle generation of various outputs from source
+# files documented with doxygen comments. The supported transformations are:
+#
+# * Source -> Doxygen XML -> BoostBook XML
+# * Source -> Doxygen HTML
+#
+# The type of transformation is selected based on the target requested. For
+# BoostBook XML, the default, specifying a target with an ".xml" suffix, or an
+# empty suffix, will produce a <target>.xml and <target>.boostbook. For Doxygen
+# HTML specifying a target with an ".html" suffix will produce a directory
+# <target> with the Doxygen html files, and a <target>.html file redirecting to
+# that directory.
+
+import "class" : new ;
+import targets ;
+import feature ;
+import property ;
+import generators ;
+import boostbook ;
+import type ;
+import path ;
+import print ;
+import regex ;
+import stage ;
+import project ;
+import xsltproc ;
+import make ;
+import os ;
+import toolset : flags ;
+import alias ;
+import common ;
+import modules ;
+import project ;
+import utility ;
+import errors ;
+
+
+# Use to specify extra configuration paramters. These get translated
+# into a doxyfile which configures the building of the docs.
+feature.feature doxygen:param : : free ;
+
+# Specify the "<xsl:param>boost.doxygen.header.prefix" XSLT option.
+feature.feature prefix : : free ;
+
+# Specify the "<xsl:param>boost.doxygen.reftitle" XSLT option.
+feature.feature reftitle : : free ;
+
+# Which processor to use for various translations from Doxygen.
+feature.feature doxygen.processor : xsltproc doxproc : propagated implicit ;
+
+# To generate, or not, index sections.
+feature.feature doxygen.doxproc.index : no yes : propagated incidental ;
+
+# The ID for the resulting BoostBook reference section.
+feature.feature doxygen.doxproc.id : : free ;
+
+# The title for the resulting BoostBook reference section.
+feature.feature doxygen.doxproc.title : : free ;
+
+# Location for images when generating XML
+feature.feature doxygen:xml-imagedir : : free ;
+
+# Indicates whether the entire directory should be deleted
+feature.feature doxygen.rmdir : off on : optional incidental ;
+
+# Doxygen configuration input file.
+type.register DOXYFILE : doxyfile ;
+
+# Doxygen XML multi-file output.
+type.register DOXYGEN_XML_MULTIFILE : xml-dir : XML ;
+
+# Doxygen XML coallesed output.
+type.register DOXYGEN_XML : doxygen : XML ;
+
+# Doxygen HTML multifile directory.
+type.register DOXYGEN_HTML_MULTIFILE : html-dir : HTML ;
+
+# Redirection HTML file to HTML multifile directory.
+type.register DOXYGEN_HTML : : HTML ;
+
+type.register DOXYGEN_XML_IMAGES : doxygen-xml-images ;
+
+# Initialize the Doxygen module. Parameters are:
+#   name: the name of the 'doxygen' executable. If not specified, the name
+#         'doxygen' will be used
+#
+rule init ( name ? )
+{
+    if ! $(.initialized)
+    {
+        .initialized = true ;
+
+        .doxproc = [ modules.binding $(__name__) ] ;
+        .doxproc = $(.doxproc:D)/doxproc.py ;
+
+        generators.register-composing doxygen.headers-to-doxyfile
+            : H HPP CPP : DOXYFILE ;
+        generators.register-standard doxygen.run
+            : DOXYFILE : DOXYGEN_XML_MULTIFILE ;
+        generators.register-standard doxygen.xml-dir-to-boostbook
+            : DOXYGEN_XML_MULTIFILE : BOOSTBOOK : <doxygen.processor>doxproc ;
+        generators.register-standard doxygen.xml-to-boostbook
+            : DOXYGEN_XML : BOOSTBOOK : <doxygen.processor>xsltproc ;
+        generators.register-standard doxygen.collect
+            : DOXYGEN_XML_MULTIFILE : DOXYGEN_XML ;
+        generators.register-standard doxygen.run
+            : DOXYFILE : DOXYGEN_HTML_MULTIFILE ;
+        generators.register-standard doxygen.html-redirect
+            : DOXYGEN_HTML_MULTIFILE : DOXYGEN_HTML ;
+        generators.register-standard doxygen.copy-latex-pngs
+            : DOXYGEN_HTML : DOXYGEN_XML_IMAGES ;
+
+        IMPORT $(__name__) : doxygen : : doxygen ;
+    }
+
+    if $(name)
+    {
+        modify-config ;
+        .doxygen = $(name) ;
+        check-doxygen ;
+    }
+
+    if ! $(.doxygen)
+    {
+        check-doxygen ;
+    }
+}
+
+rule freeze-config ( )
+{
+    if ! $(.initialized)
+    {
+        errors.user-error "doxygen must be initialized before it can be used." ;
+    }
+    if ! $(.config-frozen)
+    {
+        .config-frozen = true ;
+
+        if [ .is-cygwin ]
+        {
+            .is-cygwin = true ;
+        }
+    }
+}
+
+rule modify-config ( )
+{
+    if $(.config-frozen)
+    {
+        errors.user-error "Cannot change doxygen after it has been used." ;
+    }
+}
+
+rule check-doxygen ( )
+{
+    if --debug-configuration in [ modules.peek : ARGV ]
+    {
+        ECHO "notice:" using doxygen ":" $(.doxygen) ;
+    }
+    local extra-paths ;
+    if [ os.name ] = NT
+    {
+        local ProgramFiles = [ modules.peek : ProgramFiles ] ;
+        if $(ProgramFiles)
+        {
+            extra-paths = "$(ProgramFiles:J= )" ;
+        }
+        else
+        {
+            extra-paths = "C:\\Program Files" ;
+        }
+    }
+    .doxygen = [ common.get-invocation-command doxygen :
+                 doxygen : $(.doxygen) : $(extra-paths) ] ;
+}
+
+rule name ( )
+{
+    freeze-config ;
+    return $(.doxygen) ;
+}
+
+rule .is-cygwin ( )
+{
+    if [ os.on-windows ]
+    {
+        local file = [ path.make [ modules.binding $(__name__) ] ] ;
+        local dir = [ path.native
+                      [ path.join [ path.parent $(file) ] doxygen ] ] ;
+        local command =
+         "cd \"$(dir)\" && \"$(.doxygen)\" windows-paths-check.doxyfile 2>&1" ;
+        result = [ SHELL $(command) ] ;
+        if [ MATCH "(Parsing file /)" : $(result) ]
+        {
+            return true ;
+        }
+    }
+}
+
+# Runs Doxygen on the given Doxygen configuration file (the source) to generate
+# the Doxygen files. The output is dumped according to the settings in the
+# Doxygen configuration file, not according to the target! Because of this, we
+# essentially "touch" the target file, in effect making it look like we have
+# really written something useful to it. Anyone that uses this action must deal
+# with this behavior.
+#
+actions doxygen-action
+{
+    $(RM) "$(*.XML)" & "$(NAME:E=doxygen)" "$(>)" && echo "Stamped" > "$(<)"
+}
+
+
+# Runs the Python doxproc XML processor.
+#
+actions doxproc
+{
+    python "$(DOXPROC)" "--xmldir=$(>)" "--output=$(<)" "$(OPTIONS)" "--id=$(ID)" "--title=$(TITLE)"
+}
+
+
+rule translate-path ( path )
+{
+    freeze-config ;
+    if [ os.on-windows ]
+    {
+        if [ os.name ] = CYGWIN
+        {
+            if $(.is-cygwin)
+            {
+                return $(path) ;
+            }
+            else
+            {
+                return $(path:W) ;
+            }
+        }
+        else
+        {
+            if $(.is-cygwin)
+            {
+                match = [ MATCH ^(.):(.*) : $(path) ] ;
+                if $(match)
+                {
+                    return /cygdrive/$(match[1])$(match[2]:T) ;
+                }
+                else
+                {
+                    return $(path:T) ;
+                }
+            }
+            else
+            {
+                return $(path) ;
+            }
+        }
+    }
+    else
+    {
+        return $(path) ;
+    }
+}
+
+
+# Generates a doxygen configuration file (doxyfile) given a set of C++ sources
+# and a property list that may contain <doxygen:param> features.
+#
+rule headers-to-doxyfile ( target : sources * : properties * )
+{
+    local text "# Generated by Boost.Build version 2" ;
+
+    local output-dir ;
+
+    # Translate <doxygen:param> into command line flags.
+    for local param in [ feature.get-values <doxygen:param> : $(properties) ]
+    {
+        local namevalue = [ regex.match ([^=]*)=(.*) : $(param) ] ;
+        if $(namevalue[1]) = OUTPUT_DIRECTORY
+        {
+            output-dir = [ translate-path
+                           [ utility.unquote $(namevalue[2]) ] ] ;
+            text += "OUTPUT_DIRECTORY = \"$(output-dir)\"" ;
+        }
+        else
+        {
+            text += "$(namevalue[1]) = $(namevalue[2])" ;
+        }
+    }
+
+    if ! $(output-dir)
+    {
+        output-dir = [ translate-path [ on $(target) return $(LOCATE) ] ] ;
+        text += "OUTPUT_DIRECTORY = \"$(output-dir)\"" ;
+    }
+
+    local headers = ;
+    for local header in $(sources:G=)
+    {
+        header = [ translate-path $(header) ] ;
+        headers += \"$(header)\" ;
+    }
+
+    # Doxygen generates LaTex by default. So disable it unconditionally, or at
+    # least until someone needs, and hence writes support for, LaTex output.
+    text += "GENERATE_LATEX = NO" ;
+    text += "INPUT = $(headers:J= )" ;
+    print.output $(target) plain ;
+    print.text $(text) : true ;
+}
+
+
+# Run Doxygen. See doxygen-action for a description of the strange properties of
+# this rule.
+#
+rule run ( target : source : properties * )
+{
+    freeze-config ;
+    if <doxygen.rmdir>on in $(properties)
+    {
+        local output-dir =
+            [ path.make
+                [ MATCH <doxygen:param>OUTPUT_DIRECTORY=\"?([^\"]*) :
+                  $(properties) ] ] ;
+        local html-dir =
+            [ path.make
+                [ MATCH <doxygen:param>HTML_OUTPUT=(.*) :
+                  $(properties) ] ] ;
+        if $(output-dir) && $(html-dir) &&
+            [ path.glob $(output-dir) : $(html-dir) ]
+        {
+            HTMLDIR on $(target) =
+                [ path.native [ path.join $(output-dir) $(html-dir) ] ] ;
+            rm-htmldir $(target) ;
+        }
+    }
+    doxygen-action $(target) : $(source) ;
+    NAME on $(target) = $(.doxygen) ;
+    RM on $(target) = [ modules.peek common : RM ] ;
+    *.XML on $(target) =
+        [ path.native
+            [ path.join
+                [ path.make [ on $(target) return $(LOCATE) ] ]
+                $(target:B:S=)
+                *.xml ] ] ;
+}
+
+if [ os.name ] = NT
+{
+    RMDIR = rmdir /s /q ;
+}
+else
+{
+    RMDIR = rm -rf ;
+}
+
+actions quietly rm-htmldir
+{
+    $(RMDIR) $(HTMLDIR)
+}
+
+# The rules below require Boost.Book stylesheets, so we need some code to check
+# that the boostbook module has actualy been initialized.
+#
+rule check-boostbook ( )
+{
+    if ! [ modules.peek boostbook : .initialized ]
+    {
+        ECHO "error: the boostbook module is not initialized" ;
+        ECHO "error: you've attempted to use the 'doxygen' toolset, " ;
+        ECHO "error: which requires Boost.Book," ;
+        ECHO "error: but never initialized Boost.Book." ;
+        EXIT "error: Hint: add 'using boostbook ;' to your user-config.jam" ;
+    }
+}
+
+
+# Collect the set of Doxygen XML files into a single XML source file that can be
+# handled by an XSLT processor. The source is completely ignored (see
+# doxygen-action), because this action picks up the Doxygen XML index file
+# xml/index.xml. This is because we can not teach Doxygen to act like a NORMAL
+# program and take a "-o output.xml" argument (grrrr). The target of the
+# collection will be a single Doxygen XML file.
+#
+rule collect ( target : source : properties * )
+{
+    check-boostbook ;
+    local collect-xsl-dir
+        = [ path.native [ path.join [ boostbook.xsl-dir ] doxygen collect ] ] ;
+    local source-path
+        = [ path.make [ on $(source) return $(LOCATE) ] ] ;
+    local collect-path
+        = [ path.root [ path.join $(source-path) $(source:B) ] [ path.pwd ] ] ;
+    local native-path
+        = [ path.native $(collect-path) ] ;
+    local real-source
+        = [ path.native [ path.join $(collect-path) index.xml ] ] ;
+    xsltproc.xslt $(target) : $(real-source) $(collect-xsl-dir:S=.xsl)
+        : <xsl:param>doxygen.xml.path=$(native-path) ;
+}
+
+
+# Translate Doxygen XML into BoostBook.
+#
+rule xml-to-boostbook ( target : source : properties * )
+{
+    check-boostbook ;
+    local xsl-dir = [ boostbook.xsl-dir ] ;
+    local d2b-xsl = [ path.native [ path.join [ boostbook.xsl-dir ] doxygen
+        doxygen2boostbook.xsl ] ] ;
+
+    local xslt-properties = $(properties) ;
+    for local prefix in [ feature.get-values <prefix> : $(properties) ]
+    {
+        xslt-properties += "<xsl:param>boost.doxygen.header.prefix=$(prefix)" ;
+    }
+    for local title in [ feature.get-values <reftitle> : $(properties) ]
+    {
+        xslt-properties += "<xsl:param>boost.doxygen.reftitle=$(title)" ;
+    }
+
+    xsltproc.xslt $(target) : $(source) $(d2b-xsl) : $(xslt-properties) ;
+}
+
+
+flags doxygen.xml-dir-to-boostbook OPTIONS <doxygen.doxproc.index>yes : --enable-index ;
+flags doxygen.xml-dir-to-boostbook ID <doxygen.doxproc.id> ;
+flags doxygen.xml-dir-to-boostbook TITLE <doxygen.doxproc.title> ;
+
+
+rule xml-dir-to-boostbook ( target : source : properties * )
+{
+    DOXPROC on $(target) = $(.doxproc) ;
+
+    LOCATE on $(source:S=) = [ on $(source) return $(LOCATE) ] ;
+
+    doxygen.doxproc $(target) : $(source:S=) ;
+}
+
+
+# Generate the HTML redirect to HTML dir index.html file.
+#
+rule html-redirect ( target : source : properties * )
+{
+    local uri = "$(target:B)/index.html" ;
+    print.output $(target) plain ;
+    print.text
+"<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\"
+    \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">
+<html xmlns=\"http://www.w3.org/1999/xhtml\">
+<head>
+  <meta http-equiv=\"refresh\" content=\"0; URL=$(uri)\" />
+
+  <title></title>
+</head>
+
+<body>
+  Automatic redirection failed, please go to <a href=
+  \"$(uri)\">$(uri)</a>.
+</body>
+</html>
+"
+        : true ;
+}
+
+rule copy-latex-pngs ( target : source : requirements * )
+{
+    local directory = [ path.native
+                        [ feature.get-values <doxygen:xml-imagedir> :
+                          $(requirements) ] ] ;
+
+    local location = [ on $(target) return $(LOCATE) ] ;
+
+    local pdf-location =
+        [ path.native
+            [ path.join
+                [ path.make $(location) ]
+                [ path.make $(directory) ] ] ] ;
+    local html-location =
+        [ path.native
+            [ path.join
+                .
+                html
+                [ path.make $(directory) ] ] ] ;
+
+    common.MkDir $(pdf-location) ;
+    common.MkDir $(html-location) ;
+
+    DEPENDS $(target) : $(pdf-location) $(html-location) ;
+
+    if [ os.name ] = NT
+    {
+        CP on $(target) = copy /y ;
+        FROM on $(target) = \\*.png ;
+        TOHTML on $(target) = .\\html\\$(directory) ;
+        TOPDF on $(target) = \\$(directory) ;
+    }
+    else
+    {
+        CP on $(target) = cp ;
+        FROM on $(target) = /*.png ;
+        TOHTML on $(target) = ./html/$(directory) ;
+        TOPDF on $(target) = $(target:D)/$(directory) ;
+    }
+}
+
+actions copy-latex-pngs
+{
+    $(CP) $(>:S=)$(FROM) $(TOHTML)
+    $(CP) $(>:S=)$(FROM) $(<:D)$(TOPDF)
+    echo "Stamped" > "$(<)"
+}
+
+# building latex images for doxygen XML depends
+# on latex, dvips, and ps being in your PATH.
+# This is true for most Unix installs, but
+# not on Win32, where you will need to install
+# MkTex and Ghostscript and add these tools
+# to your path.
+
+actions check-latex
+{
+    latex -version >$(<)
+}
+
+actions check-dvips
+{
+    dvips -version >$(<)
+}
+
+if [ os.name ] = "NT"
+{
+   actions check-gs
+   {
+       gswin32c -version >$(<)
+   }
+}
+else
+{
+   actions check-gs
+   {
+       gs -version >$(<)
+   }
+}
+
+rule check-tools ( )
+{
+    if ! $(.check-tools-targets)
+    {
+        # Find the root project.
+        local root-project = [ project.current ] ;
+        root-project = [ $(root-project).project-module ] ;
+        while
+            [ project.attribute $(root-project) parent-module ] &&
+            [ project.attribute $(root-project) parent-module ] != user-config
+        {
+            root-project =
+                [ project.attribute $(root-project) parent-module ] ;
+        }
+
+        .latex.check = [ new file-target latex.check
+            :
+            : [ project.target $(root-project) ]
+            : [ new action : doxygen.check-latex ]
+            :
+            ] ;
+        .dvips.check = [ new file-target dvips.check
+            :
+            : [ project.target $(root-project) ]
+            : [ new action : doxygen.check-dvips ]
+            :
+            ] ;
+        .gs.check = [ new file-target gs.check
+            :
+            : [ project.target $(root-project) ]
+            : [ new action : doxygen.check-gs ]
+            :
+            ] ;
+        .check-tools-targets = $(.latex.check) $(.dvips.check) $(.gs.check) ;
+    }
+    return $(.check-tools-targets) ;
+}
+
+project.initialize $(__name__) ;
+project doxygen ;
+
+class doxygen-check-tools-target-class : basic-target
+{
+    import doxygen ;
+    rule construct ( name : sources * : property-set )
+    {
+        return [ property-set.empty ] [ doxygen.check-tools ] ;
+    }
+}
+
+local project = [ project.current ] ;
+
+targets.main-target-alternative
+    [ new doxygen-check-tools-target-class check-tools : $(project)
+        : [ targets.main-target-sources : check-tools : no-renaming ]
+        : [ targets.main-target-requirements : $(project) ]
+        : [ targets.main-target-default-build : $(project) ]
+        : [ targets.main-target-usage-requirements : $(project) ]
+    ] ;
+
+# User-level rule to generate BoostBook XML from a set of headers via Doxygen.
+#
+rule doxygen ( target : sources * : requirements * : default-build * : usage-requirements * )
+{
+    freeze-config ;
+    local project = [ project.current ] ;
+
+    if $(target:S) = .html
+    {
+        # Build an HTML directory from the sources.
+        local html-location = [ feature.get-values <location> : $(requirements) ] ;
+        local output-dir ;
+        if [ $(project).get build-dir ] 
+        {
+            # Explicitly specified build dir. Add html at the end.
+            output-dir = [ path.join [ $(project).build-dir ] $(html-location:E=html) ] ;
+        }
+        else
+        {
+            # Trim 'bin' from implicit build dir, for no other reason that backward
+            # compatibility.
+            output-dir = [ path.join [ path.parent [ $(project).build-dir ] ] 
+              $(html-location:E=html) ] ;
+        }
+        output-dir = [ path.root $(output-dir) [ path.pwd ] ] ;        
+        local output-dir-native = [ path.native $(output-dir) ] ;
+        requirements = [ property.change $(requirements) : <location> ] ;
+
+        ## The doxygen configuration file.
+        targets.main-target-alternative
+            [ new typed-target $(target:S=.tag) : $(project) : DOXYFILE
+                : [ targets.main-target-sources $(sources) : $(target:S=.tag) ]
+                : [ targets.main-target-requirements $(requirements)
+                    <doxygen:param>GENERATE_HTML=YES
+                    <doxygen:param>GENERATE_XML=NO
+                    <doxygen:param>"OUTPUT_DIRECTORY=\"$(output-dir-native)\""
+                    <doxygen:param>HTML_OUTPUT=$(target:B)
+                    : $(project) ]
+                : [ targets.main-target-default-build $(default-build) : $(project) ]
+            ] ;
+        $(project).mark-target-as-explicit $(target:S=.tag) ;
+
+        ## The html directory to generate by running doxygen.
+        targets.main-target-alternative
+            [ new typed-target $(target:S=.dir) : $(project) : DOXYGEN_HTML_MULTIFILE
+                : $(target:S=.tag)
+                : [ targets.main-target-requirements $(requirements)
+                    <doxygen:param>"OUTPUT_DIRECTORY=\"$(output-dir-native)\""
+                    <doxygen:param>HTML_OUTPUT=$(target:B)
+                    : $(project) ]
+                : [ targets.main-target-default-build $(default-build) : $(project) ]
+                ] ;
+        $(project).mark-target-as-explicit $(target:S=.dir) ;
+
+        ## The redirect html file into the generated html.
+        targets.main-target-alternative
+            [ new typed-target $(target) : $(project) : DOXYGEN_HTML
+                : $(target:S=.dir)
+                : [ targets.main-target-requirements $(requirements)
+                    <location>$(output-dir)
+                    : $(project) ]
+                : [ targets.main-target-default-build $(default-build) : $(project) ]
+                ] ;
+    }
+    else
+    {
+        # Build a BoostBook XML file from the sources.
+        local location-xml = [ feature.get-values <location> : $(requirements) ] ;
+        requirements = [ property.change $(requirements) : <location> ] ;
+        local target-xml = $(target:B=$(target:B)-xml) ;
+
+        # Check whether we need to build images
+        local images-location =
+            [ feature.get-values <doxygen:xml-imagedir> : $(requirements) ] ;
+        if $(images-location)
+        {
+            doxygen $(target).doxygen-xml-images.html : $(sources)
+                : $(requirements)
+                  <doxygen.rmdir>on
+                  <doxygen:param>QUIET=YES
+                  <doxygen:param>WARNINGS=NO
+                  <doxygen:param>WARN_IF_UNDOCUMENTED=NO
+                  <dependency>/doxygen//check-tools ;
+            $(project).mark-target-as-explicit
+                $(target).doxygen-xml-images.html ;
+
+            targets.main-target-alternative
+                [ new typed-target $(target).doxygen-xml-images
+                    : $(project) : DOXYGEN_XML_IMAGES
+                    : $(target).doxygen-xml-images.html
+                    : [ targets.main-target-requirements $(requirements)
+                        : $(project) ]
+                    : [ targets.main-target-default-build $(default-build)
+                        : $(project) ]
+                ] ;
+
+            $(project).mark-target-as-explicit
+                $(target).doxygen-xml-images ;
+
+            if ! [ regex.match "^(.*/)$" : $(images-location) ]
+            {
+                images-location = $(images-location)/ ;
+            }
+
+            requirements +=
+                <dependency>$(target).doxygen-xml-images
+                <xsl:param>boost.doxygen.formuladir=$(images-location) ;
+        }
+
+        ## The doxygen configuration file.
+        targets.main-target-alternative
+            [ new typed-target $(target-xml:S=.tag) : $(project) : DOXYFILE
+                : [ targets.main-target-sources $(sources) : $(target-xml:S=.tag) ]
+                : [ targets.main-target-requirements $(requirements)
+                    <doxygen:param>GENERATE_HTML=NO
+                    <doxygen:param>GENERATE_XML=YES
+                    <doxygen:param>XML_OUTPUT=$(target-xml)
+                    : $(project) ]
+                : [ targets.main-target-default-build $(default-build) : $(project) ]
+            ] ;
+        $(project).mark-target-as-explicit $(target-xml:S=.tag) ;
+
+        ## The Doxygen XML directory of the processed source files.
+        targets.main-target-alternative
+            [ new typed-target $(target-xml:S=.dir) : $(project) : DOXYGEN_XML_MULTIFILE
+                : $(target-xml:S=.tag)
+                : [ targets.main-target-requirements $(requirements)
+                    : $(project) ]
+                : [ targets.main-target-default-build $(default-build) : $(project) ]
+            ] ;
+        $(project).mark-target-as-explicit $(target-xml:S=.dir) ;
+
+        ## The resulting BoostBook file is generated by the processor tool. The
+        ## tool can be either the xsltproc plus accompanying XSL scripts. Or it
+        ## can be the python doxproc.py script.
+        targets.main-target-alternative
+            [ new typed-target $(target-xml) : $(project) : BOOSTBOOK
+                :  $(target-xml:S=.dir)
+                : [ targets.main-target-requirements $(requirements)
+                    : $(project) ]
+                : [ targets.main-target-default-build $(default-build) : $(project) ]
+            ] ;
+        $(project).mark-target-as-explicit $(target-xml) ;
+
+        targets.main-target-alternative
+            [ new install-target-class $(target:S=.xml) : $(project)
+                : $(target-xml)
+                : [ targets.main-target-requirements $(requirements)
+                    <location>$(location-xml:E=.)
+                    <name>$(target:S=.xml)
+                    : $(project) ]
+                : [ targets.main-target-default-build $(default-build) : $(project) ]
+            ] ;
+        $(project).mark-target-as-explicit $(target:S=.xml) ;
+
+        targets.main-target-alternative
+            [ new alias-target-class $(target) : $(project)
+                :
+                : [ targets.main-target-requirements $(requirements)
+                    : $(project) ]
+                : [ targets.main-target-default-build $(default-build) : $(project) ]
+                : [ targets.main-target-usage-requirements $(usage-requirements)
+                    <dependency>$(target:S=.xml)
+                    : $(project) ]
+            ] ;
+    }
+}
diff --git a/jam-files/boost-build/tools/doxygen/windows-paths-check.doxyfile b/jam-files/boost-build/tools/doxygen/windows-paths-check.doxyfile
new file mode 100644
index 00000000..9b969df9
--- /dev/null
+++ b/jam-files/boost-build/tools/doxygen/windows-paths-check.doxyfile
@@ -0,0 +1,3 @@
+INPUT = windows-paths-check.hpp
+GENERATE_HTML = NO
+GENERATE_LATEX = NO
diff --git a/jam-files/boost-build/tools/doxygen/windows-paths-check.hpp b/jam-files/boost-build/tools/doxygen/windows-paths-check.hpp
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/jam-files/boost-build/tools/doxygen/windows-paths-check.hpp
diff --git a/jam-files/boost-build/tools/fop.jam b/jam-files/boost-build/tools/fop.jam
new file mode 100644
index 00000000..c24b8725
--- /dev/null
+++ b/jam-files/boost-build/tools/fop.jam
@@ -0,0 +1,69 @@
+#  Copyright (C) 2003-2004 Doug Gregor and Dave Abrahams. Distributed
+# under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at
+# http://www.boost.org/LICENSE_1_0.txt)
+#
+#  This module defines rules to handle generation of PDF and
+#  PostScript files from XSL Formatting Objects via Apache FOP
+
+import generators ;
+import common ;
+import boostbook ;
+
+generators.register-standard fop.render.pdf : FO : PDF ;
+generators.register-standard fop.render.ps : FO : PS ;
+
+# Initializes the fop toolset.
+#
+rule init ( fop-command ? : java-home ? : java ? )
+{
+    local has-command = $(.has-command) ;
+
+    if $(fop-command)
+    {
+        .has-command = true ;
+    }
+
+    if $(fop-command) || ! $(has-command)
+    {
+        fop-command = [ common.get-invocation-command fop : fop : $(fop-command) 
+          : [ modules.peek : FOP_DIR ] ] ;
+    }
+    
+    if $(fop-command)
+    {
+        .FOP_COMMAND = $(fop-command) ;
+    }
+
+    if $(java-home) || $(java)
+    {
+        .FOP_SETUP = ;
+
+    
+        # JAVA_HOME is the location that java was installed to.
+    
+        if $(java-home)
+        {
+            .FOP_SETUP += [ common.variable-setting-command JAVA_HOME : $(java-home) ] ;
+        }
+
+        # JAVACMD is the location that of the java executable, useful for a
+        # non-standard java installation, where the executable isn't at
+        # $JAVA_HOME/bin/java.
+    
+        if $(java)
+        {
+            .FOP_SETUP += [ common.variable-setting-command JAVACMD : $(java) ] ;
+        }
+    }
+}
+
+actions render.pdf
+{
+    $(.FOP_SETUP) $(.FOP_COMMAND:E=fop) $(>) $(<)
+}
+
+actions render.ps
+{
+    $(.FOP_SETUP) $(.FOP_COMMAND:E=fop) $(>) -ps $(<)
+}
diff --git a/jam-files/boost-build/tools/fortran.jam b/jam-files/boost-build/tools/fortran.jam
new file mode 100644
index 00000000..37665825
--- /dev/null
+++ b/jam-files/boost-build/tools/fortran.jam
@@ -0,0 +1,55 @@
+# Copyright (C) 2004 Toon Knapen
+#
+#  Use, modification and distribution is subject to the Boost Software
+#  License Version 1.0. (See accompanying file LICENSE_1_0.txt or
+#  http://www.boost.org/LICENSE_1_0.txt)
+
+#
+# This file contains common settings for all fortran tools
+#
+
+import "class" : new ;
+import feature : feature ;
+
+import type ;
+import generators ;
+import common ;
+
+type.register FORTRAN : f F for f77 ;
+type.register FORTRAN90 : f90 F90 ;
+
+feature fortran : : free ;
+feature fortran90 : : free ;
+
+class fortran-compiling-generator : generator
+{
+    rule __init__ ( id : source-types + : target-types + : requirements * : optional-properties * )
+    {
+        generator.__init__ $(id) : $(source-types) : $(target-types) : $(requirements) : $(optional-properties) ;
+    }
+}
+
+rule register-fortran-compiler ( id : source-types + : target-types + : requirements * : optional-properties * )
+{
+    local g = [ new fortran-compiling-generator $(id) : $(source-types) : $(target-types) : $(requirements) : $(optional-properties) ] ;
+    generators.register $(g) ;
+}
+
+class fortran90-compiling-generator : generator
+{
+    rule __init__ ( id : source-types + : target-types + : requirements * : optional-properties * )
+    {
+        generator.__init__ $(id) : $(source-types) : $(target-types) : $(requirements) : $(optional-properties) ;
+    }
+}
+
+rule register-fortran90-compiler ( id : source-types + : target-types + : requirements * : optional-properties * )
+{
+    local g = [ new fortran90-compiling-generator $(id) : $(source-types) : $(target-types) : $(requirements) : $(optional-properties) ] ;
+    generators.register $(g) ;
+}
+
+# FIXME: this is ugly, should find a better way (we'd want client code to
+# register all generators as "generator.some-rule", not with "some-module.some-rule".)
+IMPORT $(__name__) : register-fortran-compiler : : generators.register-fortran-compiler ;
+IMPORT $(__name__) : register-fortran90-compiler : : generators.register-fortran90-compiler ;
diff --git a/jam-files/boost-build/tools/gcc.jam b/jam-files/boost-build/tools/gcc.jam
new file mode 100644
index 00000000..f7b0da54
--- /dev/null
+++ b/jam-files/boost-build/tools/gcc.jam
@@ -0,0 +1,1185 @@
+# Copyright 2001 David Abrahams.
+# Copyright 2002-2006 Rene Rivera.
+# Copyright 2002-2003 Vladimir Prus.
+#  Copyright (c) 2005 Reece H. Dunn.
+# Copyright 2006 Ilya Sokolov.
+# Copyright 2007 Roland Schwarz
+# Copyright 2007 Boris Gubenko.
+#
+# Distributed under the Boost Software License, Version 1.0.
+#    (See accompanying file LICENSE_1_0.txt or copy at
+#          http://www.boost.org/LICENSE_1_0.txt)
+
+import "class" : new ;
+import common ;
+import errors ;
+import feature ;
+import generators ;
+import os ;
+import pch ;
+import property ;
+import property-set ;
+import toolset ;
+import type ;
+import rc ;
+import regex ;
+import set ;
+import unix ;
+import fortran ;
+
+
+if [ MATCH (--debug-configuration) : [ modules.peek : ARGV ] ]
+{
+    .debug-configuration = true ;
+}
+
+
+feature.extend toolset : gcc ;
+# feature.subfeature toolset gcc : flavor : : optional ;
+
+toolset.inherit-generators gcc : unix : unix.link unix.link.dll ;
+toolset.inherit-flags gcc : unix ;
+toolset.inherit-rules gcc : unix ;
+
+generators.override gcc.prebuilt : builtin.prebuilt ;
+generators.override gcc.searched-lib-generator : searched-lib-generator ;
+
+# Make gcc toolset object files use the "o" suffix on all platforms.
+type.set-generated-target-suffix OBJ : <toolset>gcc : o ;
+type.set-generated-target-suffix OBJ : <toolset>gcc <target-os>windows : o ;
+type.set-generated-target-suffix OBJ : <toolset>gcc <target-os>cygwin : o ;
+
+# Initializes the gcc toolset for the given version. If necessary, command may
+# be used to specify where the compiler is located. The parameter 'options' is a
+# space-delimited list of options, each one specified as
+# <option-name>option-value. Valid option names are: cxxflags, linkflags and
+# linker-type. Accepted linker-type values are aix, darwin, gnu, hpux, osf or
+# sun and the default value will be selected based on the current OS.
+# Example:
+#   using gcc : 3.4 : : <cxxflags>foo <linkflags>bar <linker-type>sun ;
+#
+# The compiler command to use is detected in a three step manner:
+# 1) If an explicit command is specified by the user, it will be used and must available.
+# 2) If only a certain version is specified, it is enforced:
+#    - either a command 'g++-VERSION' must be available
+#    - or the default command 'g++' must be available and match the exact version.
+# 3) Without user-provided restrictions use default 'g++'
+rule init ( version ? : command * : options * )
+{
+    #1): use user-provided command
+    local tool-command = ;
+    if $(command)
+    {
+       tool-command  =  [ common.get-invocation-command-nodefault gcc : g++ : $(command) ] ;
+       if ! $(tool-command)
+       {
+           errors.error "toolset gcc initialization:" :
+                        "provided command '$(command)' not found" :
+                        "initialized from" [ errors.nearest-user-location ] ;
+       }
+    }
+    #2): enforce user-provided version
+    else if $(version)
+    {
+        tool-command  =  [ common.get-invocation-command-nodefault gcc : "g++-$(version[1])" ] ;
+        
+        #2.1) fallback: check whether "g++" reports the requested version
+        if ! $(tool-command)
+        {
+            tool-command = [ common.get-invocation-command-nodefault gcc : g++ ] ;
+            if $(tool-command)
+            {
+                local tool-command-string = $(tool-command:J=" ") ;
+                local tool-version = [ MATCH "^([0-9.]+)" : [ SHELL "$(tool-command-string) -dumpversion" ] ] ;
+                if $(tool-version) != $(version)
+                {
+                    # Permit a match betwen two-digit version specified by the user
+                    # (e.g. 4.4) and 3-digit version reported by gcc.
+                    # Since only two digits are present in binary name anyway,
+                    # insisting that user specify 3-digit version when
+                    # configuring Boost.Build while it's not required on 
+                    # command like would be strange.
+                    local stripped = [ MATCH "^([0-9]+\.[0-9]+).*" : $(tool-version) ] ;
+                    if $(stripped) != $(version)
+                    {                                            
+                        errors.error "toolset gcc initialization:" :
+                          "version '$(version)' requested but 'g++-$(version)' not found and version '$(tool-version)' of default '$(tool-command)' does not match" :
+                            "initialized from" [ errors.nearest-user-location ] ;
+                        tool-command = ;
+                    }
+                    # Use full 3-digit version to be compatible with the 'using gcc ;' case
+                    version = $(tool-version) ;
+                }
+            }
+            else
+            {
+                errors.error "toolset gcc initialization:" :
+                             "version '$(version)' requested but neither 'g++-$(version)' nor default 'g++' found" :
+                             "initialized from" [ errors.nearest-user-location ] ;
+            }
+        }
+    }
+    #3) default: no command and no version specified, try using default command "g++"
+    else
+    {
+        tool-command = [ common.get-invocation-command-nodefault gcc : g++ ] ;
+        if ! $(tool-command)
+        {
+            errors.error "toolset gcc initialization:" :
+                         "no command provided, default command 'g++' not found" :
+                         "initialized from" [ errors.nearest-user-location ] ;
+        }
+    }
+    
+    
+    # Information about the gcc command...
+    #   The command.
+    local command = $(tool-command) ;
+    #   The root directory of the tool install.
+    local root = [ feature.get-values <root> : $(options) ] ;
+    #   The bin directory where to find the command to execute.
+    local bin ;
+    #   The flavor of compiler.
+    local flavor = [ feature.get-values <flavor> : $(options) ] ;
+    #   Autodetect the root and bin dir if not given.
+    if $(command)
+    {
+        bin ?= [ common.get-absolute-tool-path $(command[-1]) ] ;
+        root ?= $(bin:D) ;
+    }
+    # The 'command' variable can have multiple elements. When calling
+    # the SHELL builtin we need a single string.
+    local command-string = $(command:J=" ") ;
+    #   Autodetect the version and flavor if not given.
+    if $(command)
+    {    
+        local machine = [ MATCH "^([^ ]+)"
+            : [ SHELL "$(command-string) -dumpmachine" ] ] ;
+        version ?= [ MATCH "^([0-9.]+)"
+            : [ SHELL "$(command-string) -dumpversion" ] ] ;
+        switch $(machine:L)
+        {
+            case *mingw* : flavor ?= mingw ;
+        }
+    }
+
+    local condition ;
+    if $(flavor)
+    {
+        condition = [ common.check-init-parameters gcc
+            : version $(version)
+            : flavor $(flavor)
+            ] ;
+    }
+    else
+    {
+        condition = [ common.check-init-parameters gcc
+            : version $(version)
+            ] ;
+        condition = $(condition) ;  #/<toolset-gcc:flavor> ;
+    }
+
+    common.handle-options gcc : $(condition) : $(command) : $(options) ;
+
+    local linker = [ feature.get-values <linker-type> : $(options) ] ;
+    # The logic below should actually be keyed on <target-os>
+    if ! $(linker)
+    {
+        if [ os.name ] = OSF
+        {
+            linker = osf ;
+        }
+        else if [ os.name ] = HPUX
+        {
+            linker = hpux ;
+        }
+        else if [ os.name ] = AIX
+        {
+            linker = aix ;
+        }
+        else if [ os.name ] = SOLARIS
+        {
+            linker = sun ;
+        }        
+        else
+        {
+            linker = gnu ;
+        }
+    }
+    init-link-flags gcc $(linker) $(condition) ;
+
+
+    # If gcc is installed in non-standard location, we'd need to add
+    # LD_LIBRARY_PATH when running programs created with it (for unit-test/run
+    # rules).
+    if $(command)
+    {
+        # On multilib 64-bit boxes, there are both 32-bit and 64-bit libraries
+        # and all must be added to LD_LIBRARY_PATH. The linker will pick the
+        # right onces. Note that we don't provide a clean way to build 32-bit
+        # binary with 64-bit compiler, but user can always pass -m32 manually.
+        local lib_path = $(root)/bin $(root)/lib $(root)/lib32 $(root)/lib64 ;
+        if $(.debug-configuration)
+        {
+            ECHO notice: using gcc libraries :: $(condition) :: $(lib_path) ;
+        }
+        toolset.flags gcc.link RUN_PATH $(condition) : $(lib_path) ;
+    }
+
+    # If it's not a system gcc install we should adjust the various programs as
+    # needed to prefer using the install specific versions. This is essential
+    # for correct use of MinGW and for cross-compiling.
+    
+    local nl = "
+" ;
+
+    # - The archive builder.
+    local archiver = [ common.get-invocation-command gcc
+            : [ NORMALIZE_PATH [ MATCH "(.*)[$(nl)]+" : [ SHELL "$(command-string) -print-prog-name=ar" ] ] ]
+            : [ feature.get-values <archiver> : $(options) ] 
+            : $(bin) 
+            : search-path ] ;
+    toolset.flags gcc.archive .AR $(condition) : $(archiver[1]) ;
+    if $(.debug-configuration)
+    {
+        ECHO notice: using gcc archiver :: $(condition) :: $(archiver[1]) ;
+    }
+
+    # - Ranlib
+    local ranlib = [ common.get-invocation-command gcc
+            : [ NORMALIZE_PATH [ MATCH "(.*)[$(nl)]+" : [ SHELL "$(command-string) -print-prog-name=ranlib" ] ] ]
+            : [ feature.get-values <ranlib> : $(options) ] 
+            : $(bin) 
+            : search-path ] ;
+    toolset.flags gcc.archive .RANLIB $(condition) : $(ranlib[1]) ;
+    if $(.debug-configuration)
+    {
+        ECHO notice: using gcc ranlib :: $(condition) :: $(ranlib[1]) ;
+    }
+
+
+    # - The resource compiler.
+    local rc =
+        [ common.get-invocation-command-nodefault gcc
+            : windres : [ feature.get-values <rc> : $(options) ] : $(bin) : search-path ] ;
+    local rc-type =
+        [ feature.get-values <rc-type> : $(options) ] ;
+    rc-type ?= windres ;
+    if ! $(rc)
+    {
+        # If we can't find an RC compiler we fallback to a null RC compiler that
+        # creates empty object files. This allows the same Jamfiles to work
+        # across the board. The null RC uses the assembler to create the empty
+        # objects, so configure that.
+        rc = [ common.get-invocation-command gcc : as : : $(bin) : search-path ] ;
+        rc-type = null ;
+    }
+    rc.configure $(rc) : $(condition) : <rc-type>$(rc-type) ;
+}
+
+if [ os.name ] = NT
+{
+    # This causes single-line command invocation to not go through .bat files,
+    # thus avoiding command-line length limitations.
+    JAMSHELL = % ;
+}
+
+generators.register-c-compiler gcc.compile.c++.preprocess : CPP : PREPROCESSED_CPP : <toolset>gcc ;
+generators.register-c-compiler gcc.compile.c.preprocess   : C   : PREPROCESSED_C   : <toolset>gcc ;
+generators.register-c-compiler gcc.compile.c++ : CPP : OBJ : <toolset>gcc ;
+generators.register-c-compiler gcc.compile.c   : C   : OBJ : <toolset>gcc ;
+generators.register-c-compiler gcc.compile.asm : ASM : OBJ : <toolset>gcc ;
+generators.register-fortran-compiler gcc.compile.fortran : FORTRAN FORTRAN90 : OBJ : <toolset>gcc ;
+
+# pch support
+
+# The compiler looks for a precompiled header in each directory just before it
+# looks for the include file in that directory. The name searched for is the
+# name specified in the #include directive with ".gch" suffix appended. The
+# logic in gcc-pch-generator will make sure that BASE_PCH suffix is appended to
+# full name of the header.
+
+type.set-generated-target-suffix PCH : <toolset>gcc : gch ;
+
+# GCC-specific pch generator.
+class gcc-pch-generator : pch-generator
+{
+    import project ;
+    import property-set ;
+    import type ;
+
+    rule run-pch ( project name ? : property-set : sources + )
+    {
+        # Find the header in sources. Ignore any CPP sources.
+        local header ;
+        for local s in $(sources)
+        {
+            if [ type.is-derived [ $(s).type ] H ]
+            {
+                header = $(s) ;
+            }
+        }
+
+        # Error handling: Base header file name should be the same as the base
+        # precompiled header name.
+        local header-name = [ $(header).name ] ;
+        local header-basename = $(header-name:B) ;
+        if $(header-basename) != $(name)
+        {
+            local location = [ $(project).project-module ] ;
+            errors.user-error "in" $(location)": pch target name `"$(name)"' should be the same as the base name of header file `"$(header-name)"'" ;
+        }
+
+        local pch-file = [ generator.run $(project) $(name) : $(property-set)
+            : $(header) ] ;
+
+        # return result of base class and pch-file property as usage-requirements
+        return
+            [ property-set.create <pch-file>$(pch-file) <cflags>-Winvalid-pch ]
+            $(pch-file)
+          ;
+    }
+
+    # Calls the base version specifying source's name as the name of the created
+    # target. As result, the PCH will be named whatever.hpp.gch, and not
+    # whatever.gch.
+    rule generated-targets ( sources + : property-set : project name ? )
+    {
+        name = [ $(sources[1]).name ] ;
+        return [ generator.generated-targets $(sources)
+          : $(property-set) : $(project) $(name) ] ;
+    }
+}
+
+# Note: the 'H' source type will catch both '.h' header and '.hpp' header. The
+# latter have HPP type, but HPP type is derived from H. The type of compilation
+# is determined entirely by the destination type.
+generators.register [ new gcc-pch-generator gcc.compile.c.pch   : H :   C_PCH : <pch>on <toolset>gcc ] ;
+generators.register [ new gcc-pch-generator gcc.compile.c++.pch : H : CPP_PCH : <pch>on <toolset>gcc ] ;
+
+# Override default do-nothing generators.
+generators.override gcc.compile.c.pch   : pch.default-c-pch-generator   ;
+generators.override gcc.compile.c++.pch : pch.default-cpp-pch-generator ;
+
+toolset.flags gcc.compile PCH_FILE <pch>on : <pch-file> ;
+
+# Declare flags and action for compilation.
+toolset.flags gcc.compile OPTIONS <optimization>off   : -O0 ;
+toolset.flags gcc.compile OPTIONS <optimization>speed : -O3 ;
+toolset.flags gcc.compile OPTIONS <optimization>space : -Os ;
+
+toolset.flags gcc.compile OPTIONS <inlining>off  : -fno-inline ;
+toolset.flags gcc.compile OPTIONS <inlining>on   : -Wno-inline ;
+toolset.flags gcc.compile OPTIONS <inlining>full : -finline-functions -Wno-inline ;
+
+toolset.flags gcc.compile OPTIONS <warnings>off : -w ;
+toolset.flags gcc.compile OPTIONS <warnings>on  : -Wall ;
+toolset.flags gcc.compile OPTIONS <warnings>all : -Wall -pedantic ;
+toolset.flags gcc.compile OPTIONS <warnings-as-errors>on : -Werror ;
+
+toolset.flags gcc.compile OPTIONS <debug-symbols>on : -g ;
+toolset.flags gcc.compile OPTIONS <profiling>on : -pg ;
+toolset.flags gcc.compile OPTIONS <rtti>off : -fno-rtti ;
+
+rule setup-fpic ( targets * : sources * : properties * )
+{
+    local link = [ feature.get-values link : $(properties) ] ;
+    if $(link) = shared
+    {        
+        local target = [ feature.get-values target-os : $(properties) ] ;
+        
+        # This logic will add -fPIC for all compilations:
+        #
+        # lib a : a.cpp b ;
+        # obj b : b.cpp ;
+        # exe c : c.cpp a d ;
+        # obj d : d.cpp ;
+        #
+        # This all is fine, except that 'd' will be compiled with -fPIC even though
+        # it is not needed, as 'd' is used only in exe. However, it is hard to
+        # detect where a target is going to be used. Alternatively, we can set -fPIC
+        # only when main target type is LIB but than 'b' would be compiled without
+        # -fPIC which would lead to link errors on x86-64. So, compile everything
+        # with -fPIC.
+        #
+        # Yet another alternative would be to create a propagated <sharedable>
+        # feature and set it when building shared libraries, but that would be hard
+        # to implement and would increase the target path length even more.
+        
+        # On Windows, fPIC is default, specifying -fPIC explicitly leads to
+        # a warning.
+        if $(target) != cygwin && $(target) != windows
+        {
+            OPTIONS on $(targets) += -fPIC ;
+        }        
+    }
+}
+
+rule setup-address-model ( targets * : sources * : properties * )
+{
+    local model = [ feature.get-values address-model : $(properties) ] ;
+    if $(model)
+    {
+        local option ;
+        local os = [ feature.get-values target-os : $(properties) ] ;
+        if $(os) = aix
+        {
+            if $(model) = 32
+            {
+                option = -maix32 ;
+            }
+            else
+            {
+                option = -maix64 ;
+            }
+        }
+        else if $(os) = hpux
+        {
+            if $(model) = 32
+            {
+                option = -milp32 ;
+            }
+            else
+            {
+                option = -mlp64 ;
+            }
+        }
+        else
+        {
+            if $(model) = 32
+            {
+                option = -m32 ;
+            }
+            else if $(model) = 64
+            {
+                option = -m64 ;
+            }
+            # For darwin, the model can be 32_64. darwin.jam will handle that
+            # on its own.
+        }
+        OPTIONS on $(targets) += $(option) ;
+    }    
+}
+
+
+# FIXME: this should not use os.name.
+if [ os.name ] != NT && [ os.name ] != OSF && [ os.name ] != HPUX && [ os.name ] != AIX
+{
+    # OSF does have an option called -soname but it does not seem to work as
+    # expected, therefore it has been disabled.
+    HAVE_SONAME   = "" ;
+    SONAME_OPTION = -h ;
+}
+
+# HPUX, for some reason, seem to use '+h', not '-h'.
+if [ os.name ] = HPUX
+{
+    HAVE_SONAME   = "" ;
+    SONAME_OPTION = +h ;
+}
+
+toolset.flags gcc.compile USER_OPTIONS <cflags> ;
+toolset.flags gcc.compile.c++ USER_OPTIONS <cxxflags> ;
+toolset.flags gcc.compile DEFINES <define> ;
+toolset.flags gcc.compile INCLUDES <include> ;
+toolset.flags gcc.compile.c++ TEMPLATE_DEPTH <c++-template-depth> ;
+toolset.flags gcc.compile.fortran USER_OPTIONS <fflags> ;
+
+rule compile.c++.pch ( targets * : sources * : properties * )
+{
+    setup-threading $(targets) : $(sources) : $(properties) ;
+    setup-fpic $(targets) : $(sources) : $(properties) ;
+    setup-address-model $(targets) : $(sources) : $(properties) ;
+}
+
+actions compile.c++.pch
+{
+    "$(CONFIG_COMMAND)" -x c++-header $(OPTIONS) $(USER_OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -c -o "$(<)" "$(>)"
+}
+
+rule compile.c.pch ( targets * : sources * : properties * )
+{
+    setup-threading $(targets) : $(sources) : $(properties) ;
+    setup-fpic $(targets) : $(sources) : $(properties) ;
+    setup-address-model $(targets) : $(sources) : $(properties) ;    
+}
+
+actions compile.c.pch
+{
+    "$(CONFIG_COMMAND)" -x c-header $(OPTIONS) $(USER_OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -c -o "$(<)" "$(>)"
+}
+
+rule compile.c++.preprocess ( targets * : sources * : properties * )
+{
+    setup-threading $(targets) : $(sources) : $(properties) ;
+    setup-fpic $(targets) : $(sources) : $(properties) ;
+    setup-address-model $(targets) : $(sources) : $(properties) ;
+    
+    # Some extensions are compiled as C++ by default. For others, we need to
+    # pass -x c++. We could always pass -x c++ but distcc does not work with it.
+    if ! $(>:S) in .cc .cp .cxx .cpp .c++ .C
+    {
+        LANG on $(<) = "-x c++" ;
+    }
+    DEPENDS $(<) : [ on $(<) return $(PCH_FILE) ] ;
+}
+
+rule compile.c.preprocess ( targets * : sources * : properties * )
+{
+    setup-threading $(targets) : $(sources) : $(properties) ;
+    setup-fpic $(targets) : $(sources) : $(properties) ;
+    setup-address-model $(targets) : $(sources) : $(properties) ;
+    
+    # If we use the name g++ then default file suffix -> language mapping does
+    # not work. So have to pass -x option. Maybe, we can work around this by
+    # allowing the user to specify both C and C++ compiler names.
+    #if $(>:S) != .c
+    #{
+        LANG on $(<) = "-x c" ;
+    #}
+    DEPENDS $(<) : [ on $(<) return $(PCH_FILE) ] ;
+}
+
+rule compile.c++ ( targets * : sources * : properties * )
+{
+    setup-threading $(targets) : $(sources) : $(properties) ;
+    setup-fpic $(targets) : $(sources) : $(properties) ;
+    setup-address-model $(targets) : $(sources) : $(properties) ;
+    
+    # Some extensions are compiled as C++ by default. For others, we need to
+    # pass -x c++. We could always pass -x c++ but distcc does not work with it.
+    if ! $(>:S) in .cc .cp .cxx .cpp .c++ .C
+    {
+        LANG on $(<) = "-x c++" ;
+    }
+    DEPENDS $(<) : [ on $(<) return $(PCH_FILE) ] ;
+    
+    # Here we want to raise the template-depth parameter value to something
+    # higher than the default value of 17. Note that we could do this using the
+    # feature.set-default rule but we do not want to set the default value for
+    # all toolsets as well.
+    #
+    # TODO: This 'modified default' has been inherited from some 'older Boost
+    # Build implementation' and has most likely been added to make some Boost
+    # library parts compile correctly. We should see what exactly prompted this
+    # and whether we can get around the problem more locally.
+    local template-depth = [ on $(<) return $(TEMPLATE_DEPTH) ] ;
+    if ! $(template-depth)
+    {
+        TEMPLATE_DEPTH on $(<) = 128 ;
+    }
+}
+
+rule compile.c ( targets * : sources * : properties * )
+{
+    setup-threading $(targets) : $(sources) : $(properties) ;
+    setup-fpic $(targets) : $(sources) : $(properties) ;
+    setup-address-model $(targets) : $(sources) : $(properties) ;
+    
+    # If we use the name g++ then default file suffix -> language mapping does
+    # not work. So have to pass -x option. Maybe, we can work around this by
+    # allowing the user to specify both C and C++ compiler names.
+    #if $(>:S) != .c
+    #{
+        LANG on $(<) = "-x c" ;
+    #}
+    DEPENDS $(<) : [ on $(<) return $(PCH_FILE) ] ;
+}
+
+rule compile.fortran ( targets * : sources * : properties * )
+{
+    setup-threading $(targets) : $(sources) : $(properties) ;
+    setup-fpic $(targets) : $(sources) : $(properties) ;
+    setup-address-model $(targets) : $(sources) : $(properties) ;
+}
+
+actions compile.c++ bind PCH_FILE
+{
+    "$(CONFIG_COMMAND)" $(LANG) -ftemplate-depth-$(TEMPLATE_DEPTH) $(OPTIONS) $(USER_OPTIONS) -D$(DEFINES) -I"$(PCH_FILE:D)" -I"$(INCLUDES)" -c -o "$(<:W)" "$(>:W)"
+}
+
+actions compile.c bind PCH_FILE
+{
+    "$(CONFIG_COMMAND)" $(LANG) $(OPTIONS) $(USER_OPTIONS) -D$(DEFINES) -I"$(PCH_FILE:D)" -I"$(INCLUDES)" -c -o "$(<)" "$(>)"
+}
+
+actions compile.c++.preprocess bind PCH_FILE
+{
+    "$(CONFIG_COMMAND)" $(LANG) -ftemplate-depth-$(TEMPLATE_DEPTH) $(OPTIONS) $(USER_OPTIONS) -D$(DEFINES) -I"$(PCH_FILE:D)" -I"$(INCLUDES)" "$(>:W)" -E >"$(<:W)"
+}
+
+actions compile.c.preprocess bind PCH_FILE
+{
+    "$(CONFIG_COMMAND)" $(LANG) $(OPTIONS) $(USER_OPTIONS) -D$(DEFINES) -I"$(PCH_FILE:D)" -I"$(INCLUDES)" "$(>)" -E >$(<)
+}
+
+actions compile.fortran
+{
+  "$(CONFIG_COMMAND)" $(LANG) $(OPTIONS) $(USER_OPTIONS) -D$(DEFINES) -I"$(PCH_FILE:D)" -I"$(INCLUDES)" -c -o "$(<)" "$(>)" 
+}
+
+rule compile.asm ( targets * : sources * : properties * )
+{
+    setup-fpic $(targets) : $(sources) : $(properties) ;    
+    setup-address-model $(targets) : $(sources) : $(properties) ;
+    LANG on $(<) = "-x assembler-with-cpp" ;
+}
+
+actions compile.asm
+{
+    "$(CONFIG_COMMAND)" $(LANG) $(OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -c -o "$(<)" "$(>)"
+}
+
+# The class which check that we don't try to use the <runtime-link>static
+# property while creating or using shared library, since it's not supported by
+# gcc/libc.
+class gcc-linking-generator : unix-linking-generator
+{
+    rule run ( project name ? : property-set : sources + )
+    {
+        # TODO: Replace this with the use of a target-os property.
+        local no-static-link = ;
+        if [ modules.peek : UNIX ]
+        {
+            switch [ modules.peek : JAMUNAME ]
+            {
+                case * : no-static-link = true ;
+            }
+        }
+
+        local properties = [ $(property-set).raw ] ;
+        local reason ;
+        if $(no-static-link) && <runtime-link>static in $(properties)
+        {
+            if <link>shared in $(properties)
+            {
+                reason =
+                    "On gcc, DLL can't be build with '<runtime-link>static'." ;
+            }
+            else if [ type.is-derived $(self.target-types[1]) EXE ]
+            {
+                for local s in $(sources)
+                {
+                    local type = [ $(s).type ] ;
+                    if $(type) &&  [ type.is-derived $(type) SHARED_LIB ]
+                    {
+                        reason =
+                            "On gcc, using DLLS together with the"
+                            "<runtime-link>static options is not possible " ;
+                    }
+                }
+            }
+        }
+        if $(reason)
+        {
+            ECHO warning:
+                $(reason) ;
+            ECHO warning:
+                "It is suggested to use '<runtime-link>static' together"
+                "with '<link>static'." ;
+            return ;
+        }
+        else
+        {
+            local generated-targets = [ unix-linking-generator.run $(project)
+                $(name) : $(property-set) : $(sources) ] ;
+            return $(generated-targets) ;
+        }
+    }
+}
+
+# The set of permissible input types is different on mingw.
+# So, define two sets of generators, with mingw generators
+# selected when target-os=windows.
+
+local g ;
+g = [ new gcc-linking-generator gcc.mingw.link
+      : OBJ SEARCHED_LIB STATIC_LIB IMPORT_LIB
+      : EXE
+      : <toolset>gcc <target-os>windows ] ;
+$(g).set-rule-name gcc.link ;
+generators.register $(g) ;
+
+g = [ new gcc-linking-generator gcc.mingw.link.dll
+      : OBJ SEARCHED_LIB STATIC_LIB IMPORT_LIB
+      : IMPORT_LIB SHARED_LIB
+      : <toolset>gcc <target-os>windows ] ;
+$(g).set-rule-name gcc.link.dll ;
+generators.register $(g) ;
+
+generators.register
+  [ new gcc-linking-generator gcc.link
+      : LIB OBJ
+      : EXE
+      : <toolset>gcc ] ;
+generators.register
+  [ new gcc-linking-generator gcc.link.dll
+      : LIB OBJ
+      : SHARED_LIB
+      : <toolset>gcc ] ;
+
+generators.override gcc.mingw.link : gcc.link ;
+generators.override gcc.mingw.link.dll : gcc.link.dll ;
+
+# Cygwin is similar to msvc and mingw in that it uses import libraries.
+# While in simple cases, it can directly link to a shared library,
+# it is believed to be slower, and not always possible. Define cygwin-specific
+# generators here.
+
+g = [ new gcc-linking-generator gcc.cygwin.link
+      : OBJ SEARCHED_LIB STATIC_LIB IMPORT_LIB
+      : EXE
+      : <toolset>gcc <target-os>cygwin ] ;
+$(g).set-rule-name gcc.link ;
+generators.register $(g) ;
+
+g = [ new gcc-linking-generator gcc.cygwin.link.dll
+      : OBJ SEARCHED_LIB STATIC_LIB IMPORT_LIB
+      : IMPORT_LIB SHARED_LIB
+      : <toolset>gcc <target-os>cygwin ] ;
+$(g).set-rule-name gcc.link.dll ;
+generators.register $(g) ;
+
+generators.override gcc.cygwin.link : gcc.link ;
+generators.override gcc.cygwin.link.dll : gcc.link.dll ;
+
+# Declare flags for linking.
+# First, the common flags.
+toolset.flags gcc.link OPTIONS <debug-symbols>on : -g ;
+toolset.flags gcc.link OPTIONS <profiling>on : -pg ;
+toolset.flags gcc.link USER_OPTIONS <linkflags> ;
+toolset.flags gcc.link LINKPATH <library-path> ;
+toolset.flags gcc.link FINDLIBS-ST <find-static-library> ;
+toolset.flags gcc.link FINDLIBS-SA <find-shared-library> ;
+toolset.flags gcc.link LIBRARIES <library-file> ;
+
+toolset.flags gcc.link.dll .IMPLIB-COMMAND <target-os>windows : "-Wl,--out-implib," ;
+toolset.flags gcc.link.dll .IMPLIB-COMMAND <target-os>cygwin : "-Wl,--out-implib," ;
+
+# For <runtime-link>static we made sure there are no dynamic libraries in the
+# link. On HP-UX not all system libraries exist as archived libraries (for
+# example, there is no libunwind.a), so, on this platform, the -static option
+# cannot be specified.
+if [ os.name ] != HPUX
+{
+    toolset.flags gcc.link OPTIONS <runtime-link>static : -static ;
+}
+
+# Now, the vendor specific flags.
+# The parameter linker can be either aix, darwin, gnu, hpux, osf or sun.
+rule init-link-flags ( toolset linker condition )
+{
+    switch $(linker)
+    {
+    case aix :
+        {
+        #
+        # On AIX we *have* to use the native linker.
+        #
+        # Using -brtl, the AIX linker will look for libraries with both the .a
+        # and .so extensions, such as libfoo.a and libfoo.so. Without -brtl, the
+        # AIX linker looks only for libfoo.a. Note that libfoo.a is an archived
+        # file that may contain shared objects and is different from static libs
+        # as on Linux.
+        #
+        # The -bnoipath strips the prepending (relative) path of libraries from
+        # the loader section in the target library or executable. Hence, during
+        # load-time LIBPATH (identical to LD_LIBRARY_PATH) or a hard-coded
+        # -blibpath (*similar* to -lrpath/-lrpath-link) is searched. Without
+        # this option, the prepending (relative) path + library name is
+        # hard-coded in the loader section, causing *only* this path to be
+        # searched during load-time. Note that the AIX linker does not have an
+        # -soname equivalent, this is as close as it gets.
+        #
+        # The above options are definately for AIX 5.x, and most likely also for
+        # AIX 4.x and AIX 6.x. For details about the AIX linker see:
+        # http://download.boulder.ibm.com/ibmdl/pub/software/dw/aix/es-aix_ll.pdf
+        #
+
+        toolset.flags $(toolset).link OPTIONS : -Wl,-brtl -Wl,-bnoipath
+            : unchecked ;
+        }
+
+    case darwin :
+        {
+        # On Darwin, the -s option to ld does not work unless we pass -static,
+        # and passing -static unconditionally is a bad idea. So, don't pass -s.
+        # at all, darwin.jam will use separate 'strip' invocation.
+        toolset.flags $(toolset).link RPATH $(condition) : <dll-path> : unchecked ;
+        toolset.flags $(toolset).link RPATH_LINK $(condition) : <xdll-path> : unchecked ;
+        }
+
+    case gnu :
+        {
+        # Strip the binary when no debugging is needed. We use --strip-all flag
+        # as opposed to -s since icc (intel's compiler) is generally
+        # option-compatible with and inherits from the gcc toolset, but does not
+        # support -s.
+        toolset.flags $(toolset).link OPTIONS     $(condition)/<strip>on          : -Wl,--strip-all   : unchecked ;
+        toolset.flags $(toolset).link RPATH       $(condition)                    : <dll-path>        : unchecked ;
+        toolset.flags $(toolset).link RPATH_LINK  $(condition)                    : <xdll-path>       : unchecked ;
+        toolset.flags $(toolset).link START-GROUP $(condition)                    : -Wl,--start-group : unchecked ;
+        toolset.flags $(toolset).link END-GROUP   $(condition)                    : -Wl,--end-group   : unchecked ;
+
+        # gnu ld has the ability to change the search behaviour for libraries
+        # referenced by -l switch. These modifiers are -Bstatic and -Bdynamic
+        # and change search for -l switches that follow them. The following list
+        # shows the tried variants.
+        # The search stops at the first variant that has a match.
+        # *nix: -Bstatic -lxxx
+        #    libxxx.a
+        #
+        # *nix: -Bdynamic -lxxx
+        #    libxxx.so
+        #    libxxx.a
+        #
+        # windows (mingw,cygwin) -Bstatic -lxxx
+        #    libxxx.a
+        #    xxx.lib
+        #
+        # windows (mingw,cygwin) -Bdynamic -lxxx
+        #    libxxx.dll.a
+        #    xxx.dll.a
+        #    libxxx.a
+        #    xxx.lib
+        #    cygxxx.dll (*)
+        #    libxxx.dll
+        #    xxx.dll
+        #    libxxx.a
+        #
+        # (*) This is for cygwin
+        # Please note that -Bstatic and -Bdynamic are not a guarantee that a
+        # static or dynamic lib indeed gets linked in. The switches only change
+        # search patterns!
+
+        # On *nix mixing shared libs with static runtime is not a good idea.
+        toolset.flags $(toolset).link FINDLIBS-ST-PFX $(condition)/<runtime-link>shared
+            : -Wl,-Bstatic : unchecked ;
+        toolset.flags $(toolset).link FINDLIBS-SA-PFX $(condition)/<runtime-link>shared
+            : -Wl,-Bdynamic : unchecked ;
+
+        # On windows allow mixing of static and dynamic libs with static
+        # runtime.
+        toolset.flags $(toolset).link FINDLIBS-ST-PFX $(condition)/<runtime-link>static/<target-os>windows
+            : -Wl,-Bstatic : unchecked ;
+        toolset.flags $(toolset).link FINDLIBS-SA-PFX $(condition)/<runtime-link>static/<target-os>windows
+            : -Wl,-Bdynamic : unchecked ;
+        toolset.flags $(toolset).link OPTIONS $(condition)/<runtime-link>static/<target-os>windows
+            : -Wl,-Bstatic : unchecked ;
+        }
+
+    case hpux :
+        {
+        toolset.flags $(toolset).link OPTIONS $(condition)/<strip>on
+            : -Wl,-s : unchecked ;
+        toolset.flags $(toolset).link OPTIONS $(condition)/<link>shared
+            : -fPIC : unchecked ;
+        }
+
+    case osf :
+        {
+        # No --strip-all, just -s.
+        toolset.flags $(toolset).link OPTIONS $(condition)/<strip>on
+            : -Wl,-s : unchecked ;
+        toolset.flags $(toolset).link RPATH $(condition) : <dll-path>
+            : unchecked ;
+        # This does not supports -R.
+        toolset.flags $(toolset).link RPATH_OPTION $(condition) : -rpath
+            : unchecked ;
+        # -rpath-link is not supported at all.
+        }
+
+    case sun :
+        {
+        toolset.flags $(toolset).link OPTIONS $(condition)/<strip>on
+            : -Wl,-s : unchecked ;
+        toolset.flags $(toolset).link RPATH $(condition) : <dll-path>
+            : unchecked ;
+        # Solaris linker does not have a separate -rpath-link, but allows to use
+        # -L for the same purpose.
+        toolset.flags $(toolset).link LINKPATH $(condition) : <xdll-path>
+            : unchecked ;
+
+        # This permits shared libraries with non-PIC code on Solaris.
+        # VP, 2004/09/07: Now that we have -fPIC hardcode in link.dll, the
+        # following is not needed. Whether -fPIC should be hardcoded, is a
+        # separate question.
+        # AH, 2004/10/16: it is still necessary because some tests link against
+        # static libraries that were compiled without PIC.
+        toolset.flags $(toolset).link OPTIONS $(condition)/<link>shared
+            : -mimpure-text : unchecked ;
+        }
+
+    case * :
+        {
+        errors.user-error
+            "$(toolset) initialization: invalid linker '$(linker)'" :
+            "The value '$(linker)' specified for <linker> is not recognized." :
+            "Possible values are 'aix', 'darwin', 'gnu', 'hpux', 'osf' or 'sun'" ;
+        }
+    }
+}
+
+# Enclose the RPATH variable on 'targets' in (double) quotes,
+# unless it's already enclosed in single quotes.
+# This special casing is done because it's common to pass
+# '$ORIGIN' to linker -- and it has to have single quotes
+# to prevent expansion by shell -- and if we add double
+# quotes then preventing properties of single quotes disappear.
+rule quote-rpath ( targets * )
+{
+    local r = [ on $(targets[1]) return $(RPATH) ] ;
+    if ! [ MATCH "('.*')" : $(r) ] 
+    {
+        r = "\"$(r)\"" ;
+    }
+    RPATH on $(targets) = $(r) ;
+}
+
+# Declare actions for linking.
+rule link ( targets * : sources * : properties * )
+{
+    setup-threading $(targets) : $(sources) : $(properties) ;
+    setup-address-model $(targets) : $(sources) : $(properties) ;
+    SPACE on $(targets) = " " ;
+    # Serialize execution of the 'link' action, since running N links in
+    # parallel is just slower. For now, serialize only gcc links, it might be a
+    # good idea to serialize all links.
+    JAM_SEMAPHORE on $(targets) = <s>gcc-link-semaphore ;
+    quote-rpath $(targets) ;
+}
+
+actions link bind LIBRARIES
+{
+    "$(CONFIG_COMMAND)" -L"$(LINKPATH)" -Wl,$(RPATH_OPTION:E=-R)$(SPACE)-Wl,$(RPATH) -Wl,-rpath-link$(SPACE)-Wl,"$(RPATH_LINK)" -o "$(<)" $(START-GROUP) "$(>)" "$(LIBRARIES)" $(FINDLIBS-ST-PFX) -l$(FINDLIBS-ST) $(FINDLIBS-SA-PFX) -l$(FINDLIBS-SA) $(END-GROUP) $(OPTIONS) $(USER_OPTIONS)
+
+}
+
+# Default value. Mostly for the sake of intel-linux that inherits from gcc, but
+# does not have the same logic to set the .AR variable. We can put the same
+# logic in intel-linux, but that's hardly worth the trouble as on Linux, 'ar' is
+# always available.
+.AR = ar ;
+.RANLIB = ranlib ;
+
+toolset.flags gcc.archive AROPTIONS <archiveflags> ;
+
+rule archive ( targets * : sources * : properties * )
+{
+    # Always remove archive and start again. Here is the rationale from
+    #
+    # Andre Hentz:
+    #
+    # I had a file, say a1.c, that was included into liba.a. I moved a1.c to
+    # a2.c, updated my Jamfiles and rebuilt. My program was crashing with absurd
+    # errors. After some debugging I traced it back to the fact that a1.o was
+    # *still* in liba.a
+    #
+    # Rene Rivera:
+    #
+    # Originally removing the archive was done by splicing an RM onto the
+    # archive action. That makes archives fail to build on NT when they have
+    # many files because it will no longer execute the action directly and blow
+    # the line length limit. Instead we remove the file in a different action,
+    # just before building the archive.
+    #
+    local clean.a = $(targets[1])(clean) ;
+    TEMPORARY $(clean.a) ;
+    NOCARE $(clean.a) ;
+    LOCATE on $(clean.a) = [ on $(targets[1]) return $(LOCATE) ] ;
+    DEPENDS $(clean.a) : $(sources) ;
+    DEPENDS $(targets) : $(clean.a) ;
+    common.RmTemps $(clean.a) : $(targets) ;
+}
+
+# Declare action for creating static libraries.
+# The letter 'r' means to add files to the archive with replacement. Since we
+# remove archive, we don't care about replacement, but there's no option "add
+# without replacement".
+# The letter 'c' suppresses the warning in case the archive does not exists yet.
+# That warning is produced only on some platforms, for whatever reasons.
+actions piecemeal archive
+{
+    "$(.AR)" $(AROPTIONS) rc "$(<)" "$(>)"
+    "$(.RANLIB)" "$(<)"
+}
+
+rule link.dll ( targets * : sources * : properties * )
+{
+    setup-threading $(targets) : $(sources) : $(properties) ;
+    setup-address-model $(targets) : $(sources) : $(properties) ;
+    SPACE on $(targets) = " " ;
+    JAM_SEMAPHORE on $(targets) = <s>gcc-link-semaphore ;
+    quote-rpath $(targets) ;
+}
+
+# Differs from 'link' above only by -shared.
+actions link.dll bind LIBRARIES
+{
+    "$(CONFIG_COMMAND)" -L"$(LINKPATH)" -Wl,$(RPATH_OPTION:E=-R)$(SPACE)-Wl,$(RPATH) "$(.IMPLIB-COMMAND)$(<[1])" -o "$(<[-1])" $(HAVE_SONAME)-Wl,$(SONAME_OPTION)$(SPACE)-Wl,$(<[-1]:D=) -shared $(START-GROUP) "$(>)" "$(LIBRARIES)" $(FINDLIBS-ST-PFX) -l$(FINDLIBS-ST) $(FINDLIBS-SA-PFX) -l$(FINDLIBS-SA) $(END-GROUP) $(OPTIONS) $(USER_OPTIONS)
+}
+
+rule setup-threading ( targets * : sources * : properties * )
+{
+    local threading = [ feature.get-values threading : $(properties) ] ;
+    if $(threading) = multi
+    {        
+        local target = [ feature.get-values target-os : $(properties) ] ;
+        local option ;
+        local libs ;
+        
+        switch $(target)
+        {
+            case windows :
+            {
+                option = -mthreads ;
+            }
+            case cygwin :
+            {
+                option = -mthreads ;
+            }
+            case solaris :
+            {
+                option = -pthreads ;
+                libs = rt ;
+            }
+            case beos :
+            {            
+                # BeOS has no threading options, so do not set anything here.
+            }        
+            case *bsd :
+            {
+                option = -pthread ;
+                # There is no -lrt on BSD.
+            }
+            case sgi :
+            {
+                # gcc on IRIX does not support multi-threading so do not set anything
+                # here.
+            }
+            case darwin :
+            {
+                # Darwin has no threading options so do not set anything here.
+            }
+            case * :
+            {
+                option = -pthread ;
+                libs = rt ;
+            }
+        }
+    
+        if $(option)
+        {
+            OPTIONS on $(targets) += $(option) ;
+        }
+        if $(libs)
+        {
+            FINDLIBS-SA on $(targets) += $(libs) ;
+        }
+    }    
+}
+
+local rule cpu-flags ( toolset variable : architecture : instruction-set + : values + : default ? )
+{
+    if $(default)
+    {
+        toolset.flags $(toolset) $(variable)
+            <architecture>$(architecture)/<instruction-set>
+            : $(values) ;
+    }
+    toolset.flags $(toolset) $(variable)
+        <architecture>/<instruction-set>$(instruction-set)
+        <architecture>$(architecture)/<instruction-set>$(instruction-set)
+        : $(values) ;
+}
+
+# Set architecture/instruction-set options.
+#
+# x86 and compatible
+# The 'native' option appeared in gcc 4.2 so we cannot safely use it
+# as default. Use conservative i386 instead.
+cpu-flags gcc OPTIONS : x86 : native : -march=native ;
+cpu-flags gcc OPTIONS : x86 : i386 : -march=i386 : default ;
+cpu-flags gcc OPTIONS : x86 : i486 : -march=i486 ;
+cpu-flags gcc OPTIONS : x86 : i586 : -march=i586 ;
+cpu-flags gcc OPTIONS : x86 : i686 : -march=i686 ;
+cpu-flags gcc OPTIONS : x86 : pentium : -march=pentium ;
+cpu-flags gcc OPTIONS : x86 : pentium-mmx : -march=pentium-mmx ;
+cpu-flags gcc OPTIONS : x86 : pentiumpro : -march=pentiumpro ;
+cpu-flags gcc OPTIONS : x86 : pentium2 : -march=pentium2 ;
+cpu-flags gcc OPTIONS : x86 : pentium3 : -march=pentium3 ;
+cpu-flags gcc OPTIONS : x86 : pentium3m : -march=pentium3m ;
+cpu-flags gcc OPTIONS : x86 : pentium-m : -march=pentium-m ;
+cpu-flags gcc OPTIONS : x86 : pentium4 : -march=pentium4 ;
+cpu-flags gcc OPTIONS : x86 : pentium4m : -march=pentium4m ;
+cpu-flags gcc OPTIONS : x86 : prescott : -march=prescott ;
+cpu-flags gcc OPTIONS : x86 : nocona : -march=nocona ;
+cpu-flags gcc OPTIONS : x86 : core2 : -march=core2 ;
+cpu-flags gcc OPTIONS : x86 : k6 : -march=k6 ;
+cpu-flags gcc OPTIONS : x86 : k6-2 : -march=k6-2 ;
+cpu-flags gcc OPTIONS : x86 : k6-3 : -march=k6-3 ;
+cpu-flags gcc OPTIONS : x86 : athlon : -march=athlon ;
+cpu-flags gcc OPTIONS : x86 : athlon-tbird : -march=athlon-tbird ;
+cpu-flags gcc OPTIONS : x86 : athlon-4 : -march=athlon-4 ;
+cpu-flags gcc OPTIONS : x86 : athlon-xp : -march=athlon-xp ;
+cpu-flags gcc OPTIONS : x86 : athlon-mp : -march=athlon-mp ;
+##
+cpu-flags gcc OPTIONS : x86 : k8 : -march=k8 ;
+cpu-flags gcc OPTIONS : x86 : opteron : -march=opteron ;
+cpu-flags gcc OPTIONS : x86 : athlon64 : -march=athlon64 ;
+cpu-flags gcc OPTIONS : x86 : athlon-fx : -march=athlon-fx ;
+cpu-flags gcc OPTIONS : x86 : winchip-c6 : -march=winchip-c6 ;
+cpu-flags gcc OPTIONS : x86 : winchip2 : -march=winchip2 ;
+cpu-flags gcc OPTIONS : x86 : c3 : -march=c3 ;
+cpu-flags gcc OPTIONS : x86 : c3-2 : -march=c3-2 ;
+# Sparc
+cpu-flags gcc OPTIONS : sparc : c3 : -mcpu=c3 : default ;
+cpu-flags gcc OPTIONS : sparc : v7 : -mcpu=v7 ;
+cpu-flags gcc OPTIONS : sparc : cypress : -mcpu=cypress ;
+cpu-flags gcc OPTIONS : sparc : v8 : -mcpu=v8 ;
+cpu-flags gcc OPTIONS : sparc : supersparc : -mcpu=supersparc ;
+cpu-flags gcc OPTIONS : sparc : sparclite : -mcpu=sparclite ;
+cpu-flags gcc OPTIONS : sparc : hypersparc : -mcpu=hypersparc ;
+cpu-flags gcc OPTIONS : sparc : sparclite86x : -mcpu=sparclite86x ;
+cpu-flags gcc OPTIONS : sparc : f930 : -mcpu=f930 ;
+cpu-flags gcc OPTIONS : sparc : f934 : -mcpu=f934 ;
+cpu-flags gcc OPTIONS : sparc : sparclet : -mcpu=sparclet ;
+cpu-flags gcc OPTIONS : sparc : tsc701 : -mcpu=tsc701 ;
+cpu-flags gcc OPTIONS : sparc : v9 : -mcpu=v9 ;
+cpu-flags gcc OPTIONS : sparc : ultrasparc : -mcpu=ultrasparc ;
+cpu-flags gcc OPTIONS : sparc : ultrasparc3 : -mcpu=ultrasparc3 ;
+# RS/6000 & PowerPC
+cpu-flags gcc OPTIONS : power : 403 : -mcpu=403 ;
+cpu-flags gcc OPTIONS : power : 505 : -mcpu=505 ;
+cpu-flags gcc OPTIONS : power : 601 : -mcpu=601 ;
+cpu-flags gcc OPTIONS : power : 602 : -mcpu=602 ;
+cpu-flags gcc OPTIONS : power : 603 : -mcpu=603 ;
+cpu-flags gcc OPTIONS : power : 603e : -mcpu=603e ;
+cpu-flags gcc OPTIONS : power : 604 : -mcpu=604 ;
+cpu-flags gcc OPTIONS : power : 604e : -mcpu=604e ;
+cpu-flags gcc OPTIONS : power : 620 : -mcpu=620 ;
+cpu-flags gcc OPTIONS : power : 630 : -mcpu=630 ;
+cpu-flags gcc OPTIONS : power : 740 : -mcpu=740 ;
+cpu-flags gcc OPTIONS : power : 7400 : -mcpu=7400 ;
+cpu-flags gcc OPTIONS : power : 7450 : -mcpu=7450 ;
+cpu-flags gcc OPTIONS : power : 750 : -mcpu=750 ;
+cpu-flags gcc OPTIONS : power : 801 : -mcpu=801 ;
+cpu-flags gcc OPTIONS : power : 821 : -mcpu=821 ;
+cpu-flags gcc OPTIONS : power : 823 : -mcpu=823 ;
+cpu-flags gcc OPTIONS : power : 860 : -mcpu=860 ;
+cpu-flags gcc OPTIONS : power : 970 : -mcpu=970 ;
+cpu-flags gcc OPTIONS : power : 8540 : -mcpu=8540 ;
+cpu-flags gcc OPTIONS : power : power : -mcpu=power ;
+cpu-flags gcc OPTIONS : power : power2 : -mcpu=power2 ;
+cpu-flags gcc OPTIONS : power : power3 : -mcpu=power3 ;
+cpu-flags gcc OPTIONS : power : power4 : -mcpu=power4 ;
+cpu-flags gcc OPTIONS : power : power5 : -mcpu=power5 ;
+cpu-flags gcc OPTIONS : power : powerpc : -mcpu=powerpc ;
+cpu-flags gcc OPTIONS : power : powerpc64 : -mcpu=powerpc64 ;
+cpu-flags gcc OPTIONS : power : rios : -mcpu=rios ;
+cpu-flags gcc OPTIONS : power : rios1 : -mcpu=rios1 ;
+cpu-flags gcc OPTIONS : power : rios2 : -mcpu=rios2 ;
+cpu-flags gcc OPTIONS : power : rsc : -mcpu=rsc ;
+cpu-flags gcc OPTIONS : power : rs64a : -mcpu=rs64 ;
+# AIX variant of RS/6000 & PowerPC
+toolset.flags gcc AROPTIONS <address-model>64/<target-os>aix : "-X 64" ;
diff --git a/jam-files/boost-build/tools/gcc.py b/jam-files/boost-build/tools/gcc.py
new file mode 100644
index 00000000..2a3e675e
--- /dev/null
+++ b/jam-files/boost-build/tools/gcc.py
@@ -0,0 +1,796 @@
+# Status: being ported by Steven Watanabe
+# Base revision: 47077
+# TODO: common.jam needs to be ported
+# TODO: generators.jam needs to have register_c_compiler.
+#
+# Copyright 2001 David Abrahams.
+# Copyright 2002-2006 Rene Rivera.
+# Copyright 2002-2003 Vladimir Prus.
+#  Copyright (c) 2005 Reece H. Dunn.
+# Copyright 2006 Ilya Sokolov.
+# Copyright 2007 Roland Schwarz
+# Copyright 2007 Boris Gubenko.
+# Copyright 2008 Steven Watanabe
+#
+# Distributed under the Boost Software License, Version 1.0.
+#    (See accompanying file LICENSE_1_0.txt or copy at
+#          http://www.boost.org/LICENSE_1_0.txt)
+
+import os
+import subprocess
+import re
+
+import bjam
+
+from b2.tools import unix, common, rc, pch, builtin
+from b2.build import feature, type, toolset, generators
+from b2.util.utility import os_name, on_windows
+from b2.manager import get_manager
+from b2.build.generators import Generator
+from b2.build.toolset import flags
+from b2.util.utility import to_seq
+
+__debug = None
+
+def debug():
+    global __debug
+    if __debug is None:
+        __debug = "--debug-configuration" in bjam.variable("ARGV")        
+    return __debug
+
+feature.extend('toolset', ['gcc'])
+
+
+toolset.inherit_generators('gcc', [], 'unix', ['unix.link', 'unix.link.dll'])
+toolset.inherit_flags('gcc', 'unix')
+toolset.inherit_rules('gcc', 'unix')
+
+generators.override('gcc.prebuilt', 'builtin.prebuilt')
+generators.override('gcc.searched-lib-generator', 'searched-lib-generator')
+
+# Target naming is determined by types/lib.jam and the settings below this
+# comment.
+#
+# On *nix:
+#     libxxx.a     static library
+#     libxxx.so    shared library
+#
+# On windows (mingw):
+#     libxxx.lib   static library
+#     xxx.dll      DLL
+#     xxx.lib      import library
+#
+# On windows (cygwin) i.e. <target-os>cygwin
+#     libxxx.a     static library
+#     xxx.dll      DLL
+#     libxxx.dll.a import library
+#
+# Note: user can always override by using the <tag>@rule
+#       This settings have been choosen, so that mingw
+#       is in line with msvc naming conventions. For
+#       cygwin the cygwin naming convention has been choosen.
+
+# Make the "o" suffix used for gcc toolset on all
+# platforms
+type.set_generated_target_suffix('OBJ', ['<toolset>gcc'], 'o')
+type.set_generated_target_suffix('STATIC_LIB', ['<toolset>gcc', '<target-os>cygwin'], 'a')
+
+type.set_generated_target_suffix('IMPORT_LIB', ['<toolset>gcc', '<target-os>cygwin'], 'dll.a')
+type.set_generated_target_prefix('IMPORT_LIB', ['<toolset>gcc', '<target-os>cygwin'], 'lib')
+
+__machine_match = re.compile('^([^ ]+)')
+__version_match = re.compile('^([0-9.]+)')
+
+def init(version = None, command = None, options = None):
+    """
+        Initializes the gcc toolset for the given version. If necessary, command may
+        be used to specify where the compiler is located. The parameter 'options' is a
+        space-delimited list of options, each one specified as
+        <option-name>option-value. Valid option names are: cxxflags, linkflags and
+        linker-type. Accepted linker-type values are gnu, darwin, osf, hpux or sun
+        and the default value will be selected based on the current OS.
+        Example:
+          using gcc : 3.4 : : <cxxflags>foo <linkflags>bar <linker-type>sun ;
+    """
+
+    options = to_seq(options)
+    command = to_seq(command)
+
+    # Information about the gcc command...
+    #   The command.
+    command = to_seq(common.get_invocation_command('gcc', 'g++', command))
+    #   The root directory of the tool install.
+    root = feature.get_values('<root>', options) ;
+    #   The bin directory where to find the command to execute.
+    bin = None
+    #   The flavor of compiler.
+    flavor = feature.get_values('<flavor>', options)
+    #   Autodetect the root and bin dir if not given.
+    if command:
+        if not bin:
+            bin = common.get_absolute_tool_path(command[-1])
+        if not root:
+            root = os.path.dirname(bin)
+    #   Autodetect the version and flavor if not given.
+    if command:
+        machine_info = subprocess.Popen(command + ['-dumpmachine'], stdout=subprocess.PIPE).communicate()[0]
+        machine = __machine_match.search(machine_info).group(1)
+
+        version_info = subprocess.Popen(command + ['-dumpversion'], stdout=subprocess.PIPE).communicate()[0]
+        version = __version_match.search(version_info).group(1)
+        if not flavor and machine.find('mingw') != -1:
+            flavor = 'mingw'
+
+    condition = None
+    if flavor:
+        condition = common.check_init_parameters('gcc', None,
+            ('version', version),
+            ('flavor', flavor))
+    else:
+        condition = common.check_init_parameters('gcc', None,
+            ('version', version))
+
+    if command:
+        command = command[0]
+
+    common.handle_options('gcc', condition, command, options)
+
+    linker = feature.get_values('<linker-type>', options)
+    if not linker:
+        if os_name() == 'OSF':
+            linker = 'osf'
+        elif os_name() == 'HPUX':
+            linker = 'hpux' ;
+        else:
+            linker = 'gnu'
+
+    init_link_flags('gcc', linker, condition)
+
+    # If gcc is installed in non-standard location, we'd need to add
+    # LD_LIBRARY_PATH when running programs created with it (for unit-test/run
+    # rules).
+    if command:
+        # On multilib 64-bit boxes, there are both 32-bit and 64-bit libraries
+        # and all must be added to LD_LIBRARY_PATH. The linker will pick the
+        # right onces. Note that we don't provide a clean way to build 32-bit
+        # binary with 64-bit compiler, but user can always pass -m32 manually.
+        lib_path = [os.path.join(root, 'bin'),
+                    os.path.join(root, 'lib'),
+                    os.path.join(root, 'lib32'),
+                    os.path.join(root, 'lib64')]
+        if debug():
+            print 'notice: using gcc libraries ::', condition, '::', lib_path
+        toolset.flags('gcc.link', 'RUN_PATH', condition, lib_path)
+
+    # If it's not a system gcc install we should adjust the various programs as
+    # needed to prefer using the install specific versions. This is essential
+    # for correct use of MinGW and for cross-compiling.
+
+    # - The archive builder.
+    archiver = common.get_invocation_command('gcc',
+            'ar', feature.get_values('<archiver>', options), [bin], path_last=True)
+    toolset.flags('gcc.archive', '.AR', condition, [archiver])
+    if debug():
+        print 'notice: using gcc archiver ::', condition, '::', archiver
+
+    # - The resource compiler.
+    rc_command = common.get_invocation_command_nodefault('gcc',
+            'windres', feature.get_values('<rc>', options), [bin], path_last=True)
+    rc_type = feature.get_values('<rc-type>', options)
+
+    if not rc_type:
+        rc_type = 'windres'
+
+    if not rc_command:
+        # If we can't find an RC compiler we fallback to a null RC compiler that
+        # creates empty object files. This allows the same Jamfiles to work
+        # across the board. The null RC uses the assembler to create the empty
+        # objects, so configure that.
+        rc_command = common.get_invocation_command('gcc', 'as', [], [bin], path_last=True)
+        rc_type = 'null'
+    rc.configure(rc_command, condition, '<rc-type>' + rc_type)
+
+###if [ os.name ] = NT
+###{
+###    # This causes single-line command invocation to not go through .bat files,
+###    # thus avoiding command-line length limitations.
+###    JAMSHELL = % ;
+###}
+
+#FIXME: when register_c_compiler is moved to
+# generators, these should be updated
+builtin.register_c_compiler('gcc.compile.c++', ['CPP'], ['OBJ'], ['<toolset>gcc'])
+builtin.register_c_compiler('gcc.compile.c', ['C'], ['OBJ'], ['<toolset>gcc'])
+builtin.register_c_compiler('gcc.compile.asm', ['ASM'], ['OBJ'], ['<toolset>gcc'])
+
+# pch support
+
+# The compiler looks for a precompiled header in each directory just before it
+# looks for the include file in that directory. The name searched for is the
+# name specified in the #include directive with ".gch" suffix appended. The
+# logic in gcc-pch-generator will make sure that BASE_PCH suffix is appended to
+# full name of the header.
+
+type.set_generated_target_suffix('PCH', ['<toolset>gcc'], 'gch')
+
+# GCC-specific pch generator.
+class GccPchGenerator(pch.PchGenerator):
+
+    # Inherit the __init__ method
+
+    def run_pch(self, project, name, prop_set, sources):
+        # Find the header in sources. Ignore any CPP sources.
+        header = None
+        for s in sources:
+            if type.is_derived(s.type, 'H'):
+                header = s
+
+        # Error handling: Base header file name should be the same as the base
+        # precompiled header name.
+        header_name = header.name
+        header_basename = os.path.basename(header_name).rsplit('.', 1)[0]
+        if header_basename != name:
+            location = project.project_module
+            ###FIXME:
+            raise Exception()
+            ### errors.user-error "in" $(location)": pch target name `"$(name)"' should be the same as the base name of header file `"$(header-name)"'" ;
+
+        pch_file = Generator.run(self, project, name, prop_set, [header])
+
+        # return result of base class and pch-file property as usage-requirements
+        # FIXME: what about multiple results from generator.run?
+        return (property_set.create('<pch-file>' + pch_file[0], '<cflags>-Winvalid-pch'),
+                pch_file)
+
+    # Calls the base version specifying source's name as the name of the created
+    # target. As result, the PCH will be named whatever.hpp.gch, and not
+    # whatever.gch.
+    def generated_targets(self, sources, prop_set, project, name = None):
+        name = sources[0].name
+        return Generator.generated_targets(self, sources,
+            prop_set, project, name)
+
+# Note: the 'H' source type will catch both '.h' header and '.hpp' header. The
+# latter have HPP type, but HPP type is derived from H. The type of compilation
+# is determined entirely by the destination type.
+generators.register(GccPchGenerator('gcc.compile.c.pch', False, ['H'], ['C_PCH'], ['<pch>on', '<toolset>gcc' ]))
+generators.register(GccPchGenerator('gcc.compile.c++.pch', False, ['H'], ['CPP_PCH'], ['<pch>on', '<toolset>gcc' ]))
+
+# Override default do-nothing generators.
+generators.override('gcc.compile.c.pch', 'pch.default-c-pch-generator')
+generators.override('gcc.compile.c++.pch', 'pch.default-cpp-pch-generator')
+
+flags('gcc.compile', 'PCH_FILE', ['<pch>on'], ['<pch-file>'])
+
+# Declare flags and action for compilation
+flags('gcc.compile', 'OPTIONS', ['<optimization>off'], ['-O0'])
+flags('gcc.compile', 'OPTIONS', ['<optimization>speed'], ['-O3'])
+flags('gcc.compile', 'OPTIONS', ['<optimization>space'], ['-Os'])
+
+flags('gcc.compile', 'OPTIONS', ['<inlining>off'], ['-fno-inline'])
+flags('gcc.compile', 'OPTIONS', ['<inlining>on'], ['-Wno-inline'])
+flags('gcc.compile', 'OPTIONS', ['<inlining>full'], ['-finline-functions', '-Wno-inline'])
+
+flags('gcc.compile', 'OPTIONS', ['<warnings>off'], ['-w'])
+flags('gcc.compile', 'OPTIONS', ['<warnings>on'], ['-Wall'])
+flags('gcc.compile', 'OPTIONS', ['<warnings>all'], ['-Wall', '-pedantic'])
+flags('gcc.compile', 'OPTIONS', ['<warnings-as-errors>on'], ['-Werror'])
+
+flags('gcc.compile', 'OPTIONS', ['<debug-symbols>on'], ['-g'])
+flags('gcc.compile', 'OPTIONS', ['<profiling>on'], ['-pg'])
+flags('gcc.compile', 'OPTIONS', ['<rtti>off'], ['-fno-rtti'])
+
+# On cygwin and mingw, gcc generates position independent code by default, and
+# warns if -fPIC is specified. This might not be the right way of checking if
+# we're using cygwin. For example, it's possible to run cygwin gcc from NT
+# shell, or using crosscompiling. But we'll solve that problem when it's time.
+# In that case we'll just add another parameter to 'init' and move this login
+# inside 'init'.
+if not os_name () in ['CYGWIN', 'NT']:
+    # This logic will add -fPIC for all compilations:
+    #
+    # lib a : a.cpp b ;
+    # obj b : b.cpp ;
+    # exe c : c.cpp a d ;
+    # obj d : d.cpp ;
+    #
+    # This all is fine, except that 'd' will be compiled with -fPIC even though
+    # it's not needed, as 'd' is used only in exe. However, it's hard to detect
+    # where a target is going to be used. Alternative, we can set -fPIC only
+    # when main target type is LIB but than 'b' will be compiled without -fPIC.
+    # In x86-64 that will lead to link errors. So, compile everything with
+    # -fPIC.
+    #
+    # Yet another alternative would be to create propagated <sharedable>
+    # feature, and set it when building shared libraries, but that's hard to
+    # implement and will increase target path length even more.
+    flags('gcc.compile', 'OPTIONS', ['<link>shared'], ['-fPIC'])
+
+if os_name() != 'NT' and os_name() != 'OSF' and os_name() != 'HPUX':
+    # OSF does have an option called -soname but it doesn't seem to work as
+    # expected, therefore it has been disabled.
+    HAVE_SONAME   = ''
+    SONAME_OPTION = '-h'
+
+
+flags('gcc.compile', 'USER_OPTIONS', [], ['<cflags>'])
+flags('gcc.compile.c++', 'USER_OPTIONS',[], ['<cxxflags>'])
+flags('gcc.compile', 'DEFINES', [], ['<define>'])
+flags('gcc.compile', 'INCLUDES', [], ['<include>'])
+
+engine = get_manager().engine()
+
+engine.register_action('gcc.compile.c++.pch', 
+    '"$(CONFIG_COMMAND)" -x c++-header $(OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -c -o "$(<)" "$(>)"')
+
+engine.register_action('gcc.compile.c.pch',
+    '"$(CONFIG_COMMAND)" -x c-header $(OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -c -o "$(<)" "$(>)"')
+
+
+def gcc_compile_cpp(targets, sources, properties):
+    # Some extensions are compiled as C++ by default. For others, we need to
+    # pass -x c++. We could always pass -x c++ but distcc does not work with it.
+    extension = os.path.splitext (sources [0]) [1]
+    lang = ''
+    if not extension in ['.cc', '.cp', '.cxx', '.cpp', '.c++', '.C']:
+        lang = '-x c++'
+    get_manager().engine().set_target_variable (targets, 'LANG', lang)
+    engine.add_dependency(targets, bjam.call('get-target-variable', targets, 'PCH_FILE'))
+
+def gcc_compile_c(targets, sources, properties):
+    engine = get_manager().engine()
+    # If we use the name g++ then default file suffix -> language mapping does
+    # not work. So have to pass -x option. Maybe, we can work around this by
+    # allowing the user to specify both C and C++ compiler names.
+    #if $(>:S) != .c
+    #{
+    engine.set_target_variable (targets, 'LANG', '-x c')
+    #}
+    engine.add_dependency(targets, bjam.call('get-target-variable', targets, 'PCH_FILE'))
+    
+engine.register_action(
+    'gcc.compile.c++',
+    '"$(CONFIG_COMMAND)" $(LANG) -ftemplate-depth-128 $(OPTIONS) ' +
+        '$(USER_OPTIONS) -D$(DEFINES) -I"$(PCH_FILE:D)" -I"$(INCLUDES)" ' +
+        '-c -o "$(<:W)" "$(>:W)"',
+    function=gcc_compile_cpp,
+    bound_list=['PCH_FILE'])
+
+engine.register_action(
+    'gcc.compile.c',
+    '"$(CONFIG_COMMAND)" $(LANG) $(OPTIONS) $(USER_OPTIONS) -D$(DEFINES) ' +
+        '-I"$(PCH_FILE:D)" -I"$(INCLUDES)" -c -o "$(<)" "$(>)"',
+    function=gcc_compile_c,
+    bound_list=['PCH_FILE'])
+
+def gcc_compile_asm(targets, sources, properties):
+    get_manager().engine().set_target_variable(targets, 'LANG', '-x assembler-with-cpp')
+
+engine.register_action(
+    'gcc.compile.asm',
+    '"$(CONFIG_COMMAND)" $(LANG) $(OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -c -o "$(<)" "$(>)"',
+    function=gcc_compile_asm)
+
+
+class GccLinkingGenerator(unix.UnixLinkingGenerator):
+    """
+        The class which check that we don't try to use the <runtime-link>static
+        property while creating or using shared library, since it's not supported by
+        gcc/libc.
+    """
+    def run(self, project, name, ps, sources):
+        # TODO: Replace this with the use of a target-os property.
+
+        no_static_link = False
+        if bjam.variable('UNIX'):
+            no_static_link = True;
+        ##FIXME: what does this mean?
+##        {
+##            switch [ modules.peek : JAMUNAME ]
+##            {
+##                case * : no-static-link = true ;
+##            }
+##        }
+
+        reason = None
+        if no_static_link and ps.get('runtime-link') == 'static':
+            if ps.get('link') == 'shared':
+                reason = "On gcc, DLL can't be build with '<runtime-link>static'."
+            elif type.is_derived(self.target_types[0], 'EXE'):
+                for s in sources:
+                    source_type = s.type()
+                    if source_type and type.is_derived(source_type, 'SHARED_LIB'):
+                        reason = "On gcc, using DLLS together with the " +\
+                                 "<runtime-link>static options is not possible "
+        if reason:
+            print 'warning:', reason
+            print 'warning:',\
+                "It is suggested to use '<runtime-link>static' together",\
+                "with '<link>static'." ;
+            return
+        else:
+            generated_targets = unix.UnixLinkingGenerator.run(self, project,
+                name, ps, sources)
+            return generated_targets
+
+if on_windows():
+    flags('gcc.link.dll', '.IMPLIB-COMMAND', [], ['-Wl,--out-implib,'])
+    generators.register(
+        GccLinkingGenerator('gcc.link', True,
+            ['OBJ', 'SEARCHED_LIB', 'STATIC_LIB', 'IMPORT_LIB'],
+            [ 'EXE' ],
+            [ '<toolset>gcc' ]))
+    generators.register(
+        GccLinkingGenerator('gcc.link.dll', True,
+            ['OBJ', 'SEARCHED_LIB', 'STATIC_LIB', 'IMPORT_LIB'],
+            ['IMPORT_LIB', 'SHARED_LIB'],
+            ['<toolset>gcc']))
+else:
+    generators.register(
+        GccLinkingGenerator('gcc.link', True,
+            ['LIB', 'OBJ'],
+            ['EXE'],
+            ['<toolset>gcc']))
+    generators.register(
+        GccLinkingGenerator('gcc.link.dll', True,
+            ['LIB', 'OBJ'],
+            ['SHARED_LIB'],
+            ['<toolset>gcc']))
+
+# Declare flags for linking.
+# First, the common flags.
+flags('gcc.link', 'OPTIONS', ['<debug-symbols>on'], ['-g'])
+flags('gcc.link', 'OPTIONS', ['<profiling>on'], ['-pg'])
+flags('gcc.link', 'USER_OPTIONS', [], ['<linkflags>'])
+flags('gcc.link', 'LINKPATH', [], ['<library-path>'])
+flags('gcc.link', 'FINDLIBS-ST', [], ['<find-static-library>'])
+flags('gcc.link', 'FINDLIBS-SA', [], ['<find-shared-library>'])
+flags('gcc.link', 'LIBRARIES', [], ['<library-file>'])
+
+# For <runtime-link>static we made sure there are no dynamic libraries in the
+# link. On HP-UX not all system libraries exist as archived libraries (for
+# example, there is no libunwind.a), so, on this platform, the -static option
+# cannot be specified.
+if os_name() != 'HPUX':
+    flags('gcc.link', 'OPTIONS', ['<runtime-link>static'], ['-static'])
+
+# Now, the vendor specific flags.
+# The parameter linker can be either gnu, darwin, osf, hpux or sun.
+def init_link_flags(toolset, linker, condition):
+    """
+        Now, the vendor specific flags.
+        The parameter linker can be either gnu, darwin, osf, hpux or sun.
+    """
+    toolset_link = toolset + '.link'
+    if linker == 'gnu':
+        # Strip the binary when no debugging is needed. We use --strip-all flag
+        # as opposed to -s since icc (intel's compiler) is generally
+        # option-compatible with and inherits from the gcc toolset, but does not
+        # support -s.
+
+        # FIXME: what does unchecked translate to?
+        flags(toolset_link, 'OPTIONS', map(lambda x: x + '/<debug-symbols>off', condition), ['-Wl,--strip-all'])  # : unchecked ;
+        flags(toolset_link, 'RPATH',       condition,                      ['<dll-path>'])       # : unchecked ;
+        flags(toolset_link, 'RPATH_LINK',  condition,                      ['<xdll-path>'])      # : unchecked ;
+        flags(toolset_link, 'START-GROUP', condition,                      ['-Wl,--start-group'])# : unchecked ;
+        flags(toolset_link, 'END-GROUP',   condition,                      ['-Wl,--end-group'])  # : unchecked ;
+
+        # gnu ld has the ability to change the search behaviour for libraries
+        # referenced by -l switch. These modifiers are -Bstatic and -Bdynamic
+        # and change search for -l switches that follow them. The following list
+        # shows the tried variants.
+        # The search stops at the first variant that has a match.
+        # *nix: -Bstatic -lxxx
+        #    libxxx.a
+        #
+        # *nix: -Bdynamic -lxxx
+        #    libxxx.so
+        #    libxxx.a
+        #
+        # windows (mingw,cygwin) -Bstatic -lxxx
+        #    libxxx.a
+        #    xxx.lib
+        #
+        # windows (mingw,cygwin) -Bdynamic -lxxx
+        #    libxxx.dll.a
+        #    xxx.dll.a
+        #    libxxx.a
+        #    xxx.lib
+        #    cygxxx.dll (*)
+        #    libxxx.dll
+        #    xxx.dll
+        #    libxxx.a
+        #
+        # (*) This is for cygwin
+        # Please note that -Bstatic and -Bdynamic are not a guarantee that a
+        # static or dynamic lib indeed gets linked in. The switches only change
+        # search patterns!
+
+        # On *nix mixing shared libs with static runtime is not a good idea.
+        flags(toolset_link, 'FINDLIBS-ST-PFX',
+              map(lambda x: x + '/<runtime-link>shared', condition),
+            ['-Wl,-Bstatic']) # : unchecked ;
+        flags(toolset_link, 'FINDLIBS-SA-PFX',
+              map(lambda x: x + '/<runtime-link>shared', condition),
+            ['-Wl,-Bdynamic']) # : unchecked ;
+
+        # On windows allow mixing of static and dynamic libs with static
+        # runtime.
+        flags(toolset_link, 'FINDLIBS-ST-PFX',
+              map(lambda x: x + '/<runtime-link>static/<target-os>windows', condition),
+              ['-Wl,-Bstatic']) # : unchecked ;
+        flags(toolset_link, 'FINDLIBS-SA-PFX',
+              map(lambda x: x + '/<runtime-link>static/<target-os>windows', condition),
+              ['-Wl,-Bdynamic']) # : unchecked ;
+        flags(toolset_link, 'OPTIONS',
+              map(lambda x: x + '/<runtime-link>static/<target-os>windows', condition),
+              ['-Wl,-Bstatic']) # : unchecked ;
+
+    elif linker == 'darwin':
+        # On Darwin, the -s option to ld does not work unless we pass -static,
+        # and passing -static unconditionally is a bad idea. So, don't pass -s.
+        # at all, darwin.jam will use separate 'strip' invocation.
+        flags(toolset_link, 'RPATH', condition, ['<dll-path>']) # : unchecked ;
+        flags(toolset_link, 'RPATH_LINK', condition, ['<xdll-path>']) # : unchecked ;
+
+    elif linker == 'osf':
+        # No --strip-all, just -s.
+        flags(toolset_link, 'OPTIONS', map(lambda x: x + '/<debug-symbols>off', condition), ['-Wl,-s'])
+            # : unchecked ;
+        flags(toolset_link, 'RPATH', condition, ['<dll-path>']) # : unchecked ;
+        # This does not supports -R.
+        flags(toolset_link, 'RPATH_OPTION', condition, ['-rpath']) # : unchecked ;
+        # -rpath-link is not supported at all.
+
+    elif linker == 'sun':
+        flags(toolset_link, 'OPTIONS', map(lambda x: x + '/<debug-symbols>off', condition), ['-Wl,-s'])
+            # : unchecked ;
+        flags(toolset_link, 'RPATH', condition, ['<dll-path>']) # : unchecked ;
+        # Solaris linker does not have a separate -rpath-link, but allows to use
+        # -L for the same purpose.
+        flags(toolset_link, 'LINKPATH', condition, ['<xdll-path>']) # : unchecked ;
+
+        # This permits shared libraries with non-PIC code on Solaris.
+        # VP, 2004/09/07: Now that we have -fPIC hardcode in link.dll, the
+        # following is not needed. Whether -fPIC should be hardcoded, is a
+        # separate question.
+        # AH, 2004/10/16: it is still necessary because some tests link against
+        # static libraries that were compiled without PIC.
+        flags(toolset_link, 'OPTIONS', map(lambda x: x + '/<link>shared', condition), ['-mimpure-text'])
+            # : unchecked ;
+
+    elif linker == 'hpux':
+        flags(toolset_link, 'OPTIONS', map(lambda x: x + '/<debug-symbols>off', condition),
+            ['-Wl,-s']) # : unchecked ;
+        flags(toolset_link, 'OPTIONS', map(lambda x: x + '/<link>shared', condition),
+            ['-fPIC']) # : unchecked ;
+
+    else:
+        # FIXME:
+        errors.user_error(
+        "$(toolset) initialization: invalid linker '$(linker)' " +
+        "The value '$(linker)' specified for <linker> is not recognized. " +
+        "Possible values are 'gnu', 'darwin', 'osf', 'hpux' or 'sun'")
+
+# Declare actions for linking.
+def gcc_link(targets, sources, properties):
+    engine = get_manager().engine()
+    engine.set_target_variable(targets, 'SPACE', ' ')
+    # Serialize execution of the 'link' action, since running N links in
+    # parallel is just slower. For now, serialize only gcc links, it might be a
+    # good idea to serialize all links.
+    engine.set_target_variable(targets, 'JAM_SEMAPHORE', '<s>gcc-link-semaphore')
+
+engine.register_action(
+    'gcc.link',
+    '"$(CONFIG_COMMAND)" -L"$(LINKPATH)" ' +
+        '-Wl,$(RPATH_OPTION:E=-R)$(SPACE)-Wl,"$(RPATH)" ' +
+        '-Wl,-rpath-link$(SPACE)-Wl,"$(RPATH_LINK)" -o "$(<)" ' +
+        '$(START-GROUP) "$(>)" "$(LIBRARIES)" $(FINDLIBS-ST-PFX) ' +
+        '-l$(FINDLIBS-ST) $(FINDLIBS-SA-PFX) -l$(FINDLIBS-SA) $(END-GROUP) ' +
+        '$(OPTIONS) $(USER_OPTIONS)',
+    function=gcc_link,
+    bound_list=['LIBRARIES'])
+
+# Default value. Mostly for the sake of intel-linux that inherits from gcc, but
+# does not have the same logic to set the .AR variable. We can put the same
+# logic in intel-linux, but that's hardly worth the trouble as on Linux, 'ar' is
+# always available.
+__AR = 'ar'
+
+flags('gcc.archive', 'AROPTIONS', [], ['<archiveflags>'])
+
+def gcc_archive(targets, sources, properties):
+    # Always remove archive and start again. Here's rationale from
+    #
+    # Andre Hentz:
+    #
+    # I had a file, say a1.c, that was included into liba.a. I moved a1.c to
+    # a2.c, updated my Jamfiles and rebuilt. My program was crashing with absurd
+    # errors. After some debugging I traced it back to the fact that a1.o was
+    # *still* in liba.a
+    #
+    # Rene Rivera:
+    #
+    # Originally removing the archive was done by splicing an RM onto the
+    # archive action. That makes archives fail to build on NT when they have
+    # many files because it will no longer execute the action directly and blow
+    # the line length limit. Instead we remove the file in a different action,
+    # just before building the archive.
+    clean = targets[0] + '(clean)'
+    bjam.call('TEMPORARY', clean)
+    bjam.call('NOCARE', clean)
+    engine = get_manager().engine()
+    engine.set_target_variable('LOCATE', clean, bjam.call('get-target-variable', targets, 'LOCATE'))
+    engine.add_dependency(clean, sources)
+    engine.add_dependency(targets, clean)
+    engine.set_update_action('common.RmTemps', clean, targets)
+
+# Declare action for creating static libraries.
+# The letter 'r' means to add files to the archive with replacement. Since we
+# remove archive, we don't care about replacement, but there's no option "add
+# without replacement".
+# The letter 'c' suppresses the warning in case the archive does not exists yet.
+# That warning is produced only on some platforms, for whatever reasons.
+engine.register_action('gcc.archive',
+                       '"$(.AR)" $(AROPTIONS) rc "$(<)" "$(>)"',
+                       function=gcc_archive,
+                       flags=['piecemeal'])
+
+def gcc_link_dll(targets, sources, properties):
+    engine = get_manager().engine()
+    engine.set_target_variable(targets, 'SPACE', ' ')
+    engine.set_target_variable(targets, 'JAM_SEMAPHORE', '<s>gcc-link-semaphore')
+    engine.set_target_variable(targets, "HAVE_SONAME", HAVE_SONAME)
+    engine.set_target_variable(targets, "SONAME_OPTION", SONAME_OPTION)
+
+engine.register_action(
+    'gcc.link.dll',
+    # Differ from 'link' above only by -shared.
+    '"$(CONFIG_COMMAND)" -L"$(LINKPATH)" ' +
+        '-Wl,$(RPATH_OPTION:E=-R)$(SPACE)-Wl,"$(RPATH)" ' +
+        '"$(.IMPLIB-COMMAND)$(<[1])" -o "$(<[-1])" ' +
+        '$(HAVE_SONAME)-Wl,$(SONAME_OPTION)$(SPACE)-Wl,$(<[-1]:D=) ' +
+        '-shared $(START-GROUP) "$(>)" "$(LIBRARIES)" $(FINDLIBS-ST-PFX) ' +
+        '-l$(FINDLIBS-ST) $(FINDLIBS-SA-PFX) -l$(FINDLIBS-SA) $(END-GROUP) ' +
+        '$(OPTIONS) $(USER_OPTIONS)',
+    function = gcc_link_dll,
+    bound_list=['LIBRARIES'])
+
+# Set up threading support. It's somewhat contrived, so perform it at the end,
+# to avoid cluttering other code.
+
+if on_windows():
+    flags('gcc', 'OPTIONS', ['<threading>multi'], ['-mthreads'])
+elif bjam.variable('UNIX'):
+    jamuname = bjam.variable('JAMUNAME')
+    host_os_name = jamuname[0]
+    if host_os_name.startswith('SunOS'):
+        flags('gcc', 'OPTIONS', ['<threading>multi'], ['-pthreads'])
+        flags('gcc', 'FINDLIBS-SA', [], ['rt'])
+    elif host_os_name == 'BeOS':
+        # BeOS has no threading options, don't set anything here.
+        pass
+    elif host_os_name.endswith('BSD'):
+        flags('gcc', 'OPTIONS', ['<threading>multi'], ['-pthread'])
+        # there is no -lrt on BSD
+    elif host_os_name == 'DragonFly':
+        flags('gcc', 'OPTIONS', ['<threading>multi'], ['-pthread'])
+        # there is no -lrt on BSD - DragonFly is a FreeBSD variant,
+        # which anoyingly doesn't say it's a *BSD.
+    elif host_os_name == 'IRIX':
+        # gcc on IRIX does not support multi-threading, don't set anything here.
+        pass
+    elif host_os_name == 'Darwin':
+        # Darwin has no threading options, don't set anything here.
+        pass
+    else:
+        flags('gcc', 'OPTIONS', ['<threading>multi'], ['-pthread'])
+        flags('gcc', 'FINDLIBS-SA', [], ['rt'])
+
+def cpu_flags(toolset, variable, architecture, instruction_set, values, default=None):
+    #FIXME: for some reason this fails.  Probably out of date feature code
+##    if default:
+##        flags(toolset, variable,
+##              ['<architecture>' + architecture + '/<instruction-set>'],
+##              values)
+    flags(toolset, variable,
+          #FIXME: same as above
+          [##'<architecture>/<instruction-set>' + instruction_set,
+           '<architecture>' + architecture + '/<instruction-set>' + instruction_set],
+          values)
+
+# Set architecture/instruction-set options.
+#
+# x86 and compatible
+flags('gcc', 'OPTIONS', ['<architecture>x86/<address-model>32'], ['-m32'])
+flags('gcc', 'OPTIONS', ['<architecture>x86/<address-model>64'], ['-m64'])
+cpu_flags('gcc', 'OPTIONS', 'x86', 'i386', ['-march=i386'], default=True)
+cpu_flags('gcc', 'OPTIONS', 'x86', 'i486', ['-march=i486'])
+cpu_flags('gcc', 'OPTIONS', 'x86', 'i586', ['-march=i586'])
+cpu_flags('gcc', 'OPTIONS', 'x86', 'i686', ['-march=i686'])
+cpu_flags('gcc', 'OPTIONS', 'x86', 'pentium', ['-march=pentium'])
+cpu_flags('gcc', 'OPTIONS', 'x86', 'pentium-mmx', ['-march=pentium-mmx'])
+cpu_flags('gcc', 'OPTIONS', 'x86', 'pentiumpro', ['-march=pentiumpro'])
+cpu_flags('gcc', 'OPTIONS', 'x86', 'pentium2', ['-march=pentium2'])
+cpu_flags('gcc', 'OPTIONS', 'x86', 'pentium3', ['-march=pentium3'])
+cpu_flags('gcc', 'OPTIONS', 'x86', 'pentium3m', ['-march=pentium3m'])
+cpu_flags('gcc', 'OPTIONS', 'x86', 'pentium-m', ['-march=pentium-m'])
+cpu_flags('gcc', 'OPTIONS', 'x86', 'pentium4', ['-march=pentium4'])
+cpu_flags('gcc', 'OPTIONS', 'x86', 'pentium4m', ['-march=pentium4m'])
+cpu_flags('gcc', 'OPTIONS', 'x86', 'prescott', ['-march=prescott'])
+cpu_flags('gcc', 'OPTIONS', 'x86', 'nocona', ['-march=nocona'])
+cpu_flags('gcc', 'OPTIONS', 'x86', 'k6', ['-march=k6'])
+cpu_flags('gcc', 'OPTIONS', 'x86', 'k6-2', ['-march=k6-2'])
+cpu_flags('gcc', 'OPTIONS', 'x86', 'k6-3', ['-march=k6-3'])
+cpu_flags('gcc', 'OPTIONS', 'x86', 'athlon', ['-march=athlon'])
+cpu_flags('gcc', 'OPTIONS', 'x86', 'athlon-tbird', ['-march=athlon-tbird'])
+cpu_flags('gcc', 'OPTIONS', 'x86', 'athlon-4', ['-march=athlon-4'])
+cpu_flags('gcc', 'OPTIONS', 'x86', 'athlon-xp', ['-march=athlon-xp'])
+cpu_flags('gcc', 'OPTIONS', 'x86', 'athlon-mp', ['-march=athlon-mp'])
+##
+cpu_flags('gcc', 'OPTIONS', 'x86', 'k8', ['-march=k8'])
+cpu_flags('gcc', 'OPTIONS', 'x86', 'opteron', ['-march=opteron'])
+cpu_flags('gcc', 'OPTIONS', 'x86', 'athlon64', ['-march=athlon64'])
+cpu_flags('gcc', 'OPTIONS', 'x86', 'athlon-fx', ['-march=athlon-fx'])
+cpu_flags('gcc', 'OPTIONS', 'x86', 'winchip-c6', ['-march=winchip-c6'])
+cpu_flags('gcc', 'OPTIONS', 'x86', 'winchip2', ['-march=winchip2'])
+cpu_flags('gcc', 'OPTIONS', 'x86', 'c3', ['-march=c3'])
+cpu_flags('gcc', 'OPTIONS', 'x86', 'c3-2', ['-march=c3-2'])
+# Sparc
+flags('gcc', 'OPTIONS', ['<architecture>sparc/<address-model>32'], ['-m32'])
+flags('gcc', 'OPTIONS', ['<architecture>sparc/<address-model>64'], ['-m64'])
+cpu_flags('gcc', 'OPTIONS', 'sparc', 'c3', ['-mcpu=c3'], default=True)
+cpu_flags('gcc', 'OPTIONS', 'sparc', 'v7', ['-mcpu=v7'])
+cpu_flags('gcc', 'OPTIONS', 'sparc', 'cypress', ['-mcpu=cypress'])
+cpu_flags('gcc', 'OPTIONS', 'sparc', 'v8', ['-mcpu=v8'])
+cpu_flags('gcc', 'OPTIONS', 'sparc', 'supersparc', ['-mcpu=supersparc'])
+cpu_flags('gcc', 'OPTIONS', 'sparc', 'sparclite', ['-mcpu=sparclite'])
+cpu_flags('gcc', 'OPTIONS', 'sparc', 'hypersparc', ['-mcpu=hypersparc'])
+cpu_flags('gcc', 'OPTIONS', 'sparc', 'sparclite86x', ['-mcpu=sparclite86x'])
+cpu_flags('gcc', 'OPTIONS', 'sparc', 'f930', ['-mcpu=f930'])
+cpu_flags('gcc', 'OPTIONS', 'sparc', 'f934', ['-mcpu=f934'])
+cpu_flags('gcc', 'OPTIONS', 'sparc', 'sparclet', ['-mcpu=sparclet'])
+cpu_flags('gcc', 'OPTIONS', 'sparc', 'tsc701', ['-mcpu=tsc701'])
+cpu_flags('gcc', 'OPTIONS', 'sparc', 'v9', ['-mcpu=v9'])
+cpu_flags('gcc', 'OPTIONS', 'sparc', 'ultrasparc', ['-mcpu=ultrasparc'])
+cpu_flags('gcc', 'OPTIONS', 'sparc', 'ultrasparc3', ['-mcpu=ultrasparc3'])
+# RS/6000 & PowerPC
+flags('gcc', 'OPTIONS', ['<architecture>power/<address-model>32'], ['-m32'])
+flags('gcc', 'OPTIONS', ['<architecture>power/<address-model>64'], ['-m64'])
+cpu_flags('gcc', 'OPTIONS', 'power', '403', ['-mcpu=403'])
+cpu_flags('gcc', 'OPTIONS', 'power', '505', ['-mcpu=505'])
+cpu_flags('gcc', 'OPTIONS', 'power', '601', ['-mcpu=601'])
+cpu_flags('gcc', 'OPTIONS', 'power', '602', ['-mcpu=602'])
+cpu_flags('gcc', 'OPTIONS', 'power', '603', ['-mcpu=603'])
+cpu_flags('gcc', 'OPTIONS', 'power', '603e', ['-mcpu=603e'])
+cpu_flags('gcc', 'OPTIONS', 'power', '604', ['-mcpu=604'])
+cpu_flags('gcc', 'OPTIONS', 'power', '604e', ['-mcpu=604e'])
+cpu_flags('gcc', 'OPTIONS', 'power', '620', ['-mcpu=620'])
+cpu_flags('gcc', 'OPTIONS', 'power', '630', ['-mcpu=630'])
+cpu_flags('gcc', 'OPTIONS', 'power', '740', ['-mcpu=740'])
+cpu_flags('gcc', 'OPTIONS', 'power', '7400', ['-mcpu=7400'])
+cpu_flags('gcc', 'OPTIONS', 'power', '7450', ['-mcpu=7450'])
+cpu_flags('gcc', 'OPTIONS', 'power', '750', ['-mcpu=750'])
+cpu_flags('gcc', 'OPTIONS', 'power', '801', ['-mcpu=801'])
+cpu_flags('gcc', 'OPTIONS', 'power', '821', ['-mcpu=821'])
+cpu_flags('gcc', 'OPTIONS', 'power', '823', ['-mcpu=823'])
+cpu_flags('gcc', 'OPTIONS', 'power', '860', ['-mcpu=860'])
+cpu_flags('gcc', 'OPTIONS', 'power', '970', ['-mcpu=970'])
+cpu_flags('gcc', 'OPTIONS', 'power', '8540', ['-mcpu=8540'])
+cpu_flags('gcc', 'OPTIONS', 'power', 'power', ['-mcpu=power'])
+cpu_flags('gcc', 'OPTIONS', 'power', 'power2', ['-mcpu=power2'])
+cpu_flags('gcc', 'OPTIONS', 'power', 'power3', ['-mcpu=power3'])
+cpu_flags('gcc', 'OPTIONS', 'power', 'power4', ['-mcpu=power4'])
+cpu_flags('gcc', 'OPTIONS', 'power', 'power5', ['-mcpu=power5'])
+cpu_flags('gcc', 'OPTIONS', 'power', 'powerpc', ['-mcpu=powerpc'])
+cpu_flags('gcc', 'OPTIONS', 'power', 'powerpc64', ['-mcpu=powerpc64'])
+cpu_flags('gcc', 'OPTIONS', 'power', 'rios', ['-mcpu=rios'])
+cpu_flags('gcc', 'OPTIONS', 'power', 'rios1', ['-mcpu=rios1'])
+cpu_flags('gcc', 'OPTIONS', 'power', 'rios2', ['-mcpu=rios2'])
+cpu_flags('gcc', 'OPTIONS', 'power', 'rsc', ['-mcpu=rsc'])
+cpu_flags('gcc', 'OPTIONS', 'power', 'rs64a', ['-mcpu=rs64'])
+# AIX variant of RS/6000 & PowerPC
+flags('gcc', 'OPTIONS', ['<architecture>power/<address-model>32/<target-os>aix'], ['-maix32'])
+flags('gcc', 'OPTIONS', ['<architecture>power/<address-model>64/<target-os>aix'], ['-maix64'])
+flags('gcc', 'AROPTIONS', ['<architecture>power/<address-model>64/<target-os>aix'], ['-X 64'])
diff --git a/jam-files/boost-build/tools/generate.jam b/jam-files/boost-build/tools/generate.jam
new file mode 100644
index 00000000..6732fa35
--- /dev/null
+++ b/jam-files/boost-build/tools/generate.jam
@@ -0,0 +1,108 @@
+# Copyright 2006 Vladimir Prus
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+# Declares main target 'generate' used to produce targets by calling a
+# user-provided rule that takes and produces virtual targets.
+
+import "class" : new ;
+import errors ;
+import feature ;
+import project ;
+import property ;
+import property-set ;
+import targets ;
+import regex ;
+
+
+feature.feature generating-rule : : free ;
+
+
+class generated-target-class : basic-target
+{
+    import errors ;
+    import indirect ;
+    import virtual-target ;
+
+    rule __init__ ( name : project : sources * : requirements *
+        : default-build * : usage-requirements * )
+    {
+        basic-target.__init__ $(name) : $(project) : $(sources)
+            : $(requirements) : $(default-build) : $(usage-requirements) ;
+
+        if ! [ $(self.requirements).get <generating-rule> ]
+        {
+            errors.user-error "The generate rule requires the <generating-rule>"
+                "property to be set" ;
+        }
+    }
+
+    rule construct ( name : sources * : property-set )
+    {
+        local result ;
+        local gr = [ $(property-set).get <generating-rule> ] ;
+
+        # FIXME: this is a copy-paste from virtual-target.jam. We should add a
+        # utility rule to call a rule like this.
+        local rule-name = [ MATCH ^@(.*) : $(gr) ] ;
+        if $(rule-name)
+        {
+            if $(gr[2])
+            {
+                local target-name = [ full-name ] ;
+                errors.user-error "Multiple <generating-rule> properties"
+                    "encountered for target $(target-name)." ;
+            }
+
+            result = [ indirect.call $(rule-name) $(self.project) $(name)
+                : $(property-set) : $(sources) ] ;
+
+            if ! $(result)
+            {
+                ECHO "warning: Unable to construct" [ full-name ] ;
+            }
+        }
+
+        local ur ;
+        local targets ;
+
+        if $(result)
+        {
+            if  [ class.is-a $(result[1]) : property-set ]
+            {
+                ur = $(result[1]) ;
+                targets = $(result[2-]) ;
+            }
+            else
+            {
+                ur = [ property-set.empty ] ;
+                targets = $(result) ;
+            }
+        }
+        # FIXME: the following loop should be doable using sequence.transform or
+        # some similar utility rule.
+        local rt ;
+        for local t in $(targets)
+        {
+            rt += [ virtual-target.register $(t) ] ;
+        }
+        return $(ur) $(rt) ;
+    }
+}
+
+
+rule generate ( name : sources * : requirements * : default-build *
+    : usage-requirements * )
+{
+    local project = [ project.current ] ;
+
+    targets.main-target-alternative
+        [ new generated-target-class $(name) : $(project)
+            : [ targets.main-target-sources $(sources) : $(name) ]
+            : [ targets.main-target-requirements $(requirements) : $(project) ]
+            : [ targets.main-target-default-build $(default-build) : $(project) ]
+            : [ targets.main-target-usage-requirements $(usage-requirements) : $(project) ]
+        ] ;
+}
+
+IMPORT $(__name__) : generate : : generate ;
diff --git a/jam-files/boost-build/tools/gettext.jam b/jam-files/boost-build/tools/gettext.jam
new file mode 100644
index 00000000..99a43ffe
--- /dev/null
+++ b/jam-files/boost-build/tools/gettext.jam
@@ -0,0 +1,230 @@
+# Copyright 2003, 2004, 2005, 2006 Vladimir Prus
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+#  This module support GNU gettext internationalization utilities.
+#
+#  It provides two main target rules: 'gettext.catalog', used for
+#  creating machine-readable catalogs from translations files, and
+#  'gettext.update', used for update translation files from modified
+#  sources.
+#
+#  To add i18n support to your application you should follow these
+#  steps.
+#
+#  - Decide on a file name which will contain translations and
+#  what main target name will be used to update it. For example::
+#
+#    gettext.update update-russian : russian.po a.cpp my_app ;
+#
+#  - Create the initial translation file by running::
+#
+#    bjam update-russian
+#
+#  - Edit russian.po. For example, you might change fields like LastTranslator.
+#
+#  - Create a main target for final message catalog::
+#
+#    gettext.catalog russian : russian.po ;
+#
+#  The machine-readable catalog will be updated whenever you update
+#  "russian.po". The "russian.po" file will be updated only on explicit
+#  request. When you're ready to update translations, you should
+#
+#  - Run::
+#
+#    bjam update-russian
+#
+#  - Edit "russian.po" in appropriate editor.
+#
+#  The next bjam run will convert "russian.po" into machine-readable form.
+#
+#  By default, translations are marked by 'i18n' call. The 'gettext.keyword'
+#  feature can be used to alter this.
+
+
+import targets ;
+import property-set ;
+import virtual-target ;
+import "class" : new ;
+import project ;
+import type ;
+import generators ;
+import errors ;
+import feature : feature ;
+import toolset : flags ;
+import regex ;
+
+.path = "" ;
+
+# Initializes the gettext module.
+rule init ( path ? # Path where all tools are located. If not specified,
+                   # they should be in PATH.
+          )
+{
+    if $(.initialized) && $(.path) != $(path)
+    {
+        errors.error "Attempt to reconfigure with different path" ;
+    }
+    .initialized = true ;
+    if $(path)
+    {
+        .path = $(path)/ ;
+    }
+}
+
+# Creates a main target 'name', which, when updated, will cause
+# file 'existing-translation' to be updated with translations
+# extracted from 'sources'. It's possible to specify main target
+# in sources --- it which case all target from dependency graph
+# of those main targets will be scanned, provided they are of
+# appropricate type. The 'gettext.types' feature can be used to
+# control the types.
+#
+# The target will be updated only if explicitly requested on the
+# command line.
+rule update ( name : existing-translation sources + : requirements * )
+{
+    local project = [ project.current ] ;
+
+    targets.main-target-alternative
+      [ new typed-target $(name) : $(project) : gettext.UPDATE :
+        $(existing-translation) $(sources)
+        : [ targets.main-target-requirements $(requirements) : $(project) ]
+      ] ;
+    $(project).mark-target-as-explicit $(name) ;
+}
+
+
+# The human editable source, containing translation.
+type.register gettext.PO : po ;
+# The machine readable message catalog.
+type.register gettext.catalog : mo ;
+# Intermediate type produce by extracting translations from
+# sources.
+type.register gettext.POT : pot ;
+# Pseudo type used to invoke update-translations generator
+type.register gettext.UPDATE ;
+
+# Identifies the keyword that should be used when scanning sources.
+# Default: i18n
+feature gettext.keyword : : free ;
+# Contains space-separated list of sources types which should be scanned.
+# Default: "C CPP"
+feature gettext.types : : free ;
+
+generators.register-standard gettext.compile : gettext.PO : gettext.catalog ;
+
+class update-translations-generator : generator
+{
+    import regex : split ;
+    import property-set ;
+
+    rule __init__ ( * : * )
+    {
+        generator.__init__ $(1) : $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ;
+    }
+
+    # The rule should be called with at least two sources. The first source
+    # is the translation (.po) file to update. The remaining sources are targets
+    # which should be scanned for new messages. All sources files for those targets
+    # will be found and passed to the 'xgettext' utility, which extracts the
+    # messages for localization. Those messages will be merged to the .po file.
+    rule run ( project name ? : property-set : sources * : multiple ? )
+    {
+        local types = [ $(property-set).get <gettext.types> ] ;
+        types ?= "C CPP" ;
+        types = [ regex.split $(types) " " ] ;
+
+        local keywords = [ $(property-set).get <gettext.keyword> ] ;
+        property-set = [ property-set.create $(keywords:G=<gettext.keyword>) ] ;
+
+        # First deterime the list of sources that must be scanned for
+        # messages.
+        local all-sources ;
+        # CONSIDER: I'm not sure if the logic should be the same as for 'stage':
+        # i.e. following dependency properties as well.
+        for local s in $(sources[2-])
+        {
+            all-sources += [ virtual-target.traverse $(s) : : include-sources ] ;
+        }
+        local right-sources ;
+        for local s in $(all-sources)
+        {
+            if [ $(s).type ] in $(types)
+            {
+                right-sources += $(s) ;
+            }
+        }
+
+        local .constructed ;
+        if $(right-sources)
+        {
+            # Create the POT file, which will contain list of messages extracted
+            # from the sources.
+            local extract =
+              [ new action $(right-sources) : gettext.extract : $(property-set) ] ;
+            local new-messages = [ new file-target $(name) : gettext.POT
+              : $(project) : $(extract) ] ;
+
+            # Create a notfile target which will update the existing translation file
+            # with new messages.
+            local a = [ new action $(sources[1]) $(new-messages)
+              : gettext.update-po-dispatch ] ;
+            local r = [ new notfile-target $(name) : $(project) : $(a) ] ;
+            .constructed = [ virtual-target.register $(r) ] ;
+        }
+        else
+        {
+            errors.error "No source could be scanned by gettext tools" ;
+        }
+        return $(.constructed) ;
+    }
+}
+generators.register [ new update-translations-generator gettext.update : : gettext.UPDATE ] ;
+
+flags gettext.extract KEYWORD <gettext.keyword> ;
+actions extract
+{
+    $(.path)xgettext -k$(KEYWORD:E=i18n) -o $(<) $(>)
+}
+
+# Does realy updating of po file. The tricky part is that
+# we're actually updating one of the sources:
+# $(<) is the NOTFILE target we're updating
+# $(>[1]) is the PO file to be really updated.
+# $(>[2]) is the PO file created from sources.
+#
+# When file to be updated does not exist (during the
+# first run), we need to copy the file created from sources.
+# In all other cases, we need to update the file.
+rule update-po-dispatch
+{
+    NOCARE $(>[1]) ;
+    gettext.create-po $(<) : $(>) ;
+    gettext.update-po $(<) : $(>) ;
+    _ on $(<) = " " ;
+    ok on $(<) = "" ;
+    EXISTING_PO on $(<) = $(>[1]) ;
+}
+
+# Due to fancy interaction of existing and updated, this rule can be called with
+# one source, in which case we copy the lonely source into EXISTING_PO, or with
+# two sources, in which case the action body expands to nothing. I'd really like
+# to have "missing" action modifier.
+actions quietly existing updated create-po bind EXISTING_PO
+{
+    cp$(_)"$(>[1])"$(_)"$(EXISTING_PO)"$($(>[2]:E=ok))
+}
+
+actions updated update-po bind EXISTING_PO
+{
+    $(.path)msgmerge$(_)-U$(_)"$(EXISTING_PO)"$(_)"$(>[1])"
+}
+
+actions gettext.compile
+{
+    $(.path)msgfmt -o $(<) $(>)
+}
+
+IMPORT $(__name__) : update : : gettext.update ;
diff --git a/jam-files/boost-build/tools/gfortran.jam b/jam-files/boost-build/tools/gfortran.jam
new file mode 100644
index 00000000..0aa69b85
--- /dev/null
+++ b/jam-files/boost-build/tools/gfortran.jam
@@ -0,0 +1,39 @@
+# Copyright (C) 2004 Toon Knapen
+#
+#  Use, modification and distribution is subject to the Boost Software
+#  License Version 1.0. (See accompanying file LICENSE_1_0.txt or
+#  http://www.boost.org/LICENSE_1_0.txt)
+
+import toolset : flags ;
+import feature ;
+import fortran ;
+
+rule init ( version ? : command * : options * )
+{
+}
+
+# Declare flags and action for compilation
+flags gfortran OPTIONS <fflags> ;
+
+flags gfortran OPTIONS <optimization>off : -O0 ;
+flags gfortran OPTIONS <optimization>speed : -O3 ;
+flags gfortran OPTIONS <optimization>space : -Os ;
+
+flags gfortran OPTIONS <debug-symbols>on : -g ;
+flags gfortran OPTIONS <profiling>on : -pg ;
+
+flags gfortran OPTIONS <link>shared/<main-target-type>LIB : -fPIC ;
+
+flags gfortran DEFINES <define> ;
+flags gfortran INCLUDES <include> ;
+
+rule compile.fortran
+{
+}
+
+actions compile.fortran
+{
+  gcc -Wall $(OPTIONS) -D$(DEFINES) -I$(INCLUDES) -c -o "$(<)" "$(>)" 
+}
+
+generators.register-fortran-compiler gfortran.compile.fortran : FORTRAN FORTRAN90 : OBJ ; 
diff --git a/jam-files/boost-build/tools/hp_cxx.jam b/jam-files/boost-build/tools/hp_cxx.jam
new file mode 100644
index 00000000..86cd783e
--- /dev/null
+++ b/jam-files/boost-build/tools/hp_cxx.jam
@@ -0,0 +1,181 @@
+# Copyright 2001 David Abrahams.
+# Copyright 2004, 2005 Markus Schoepflin.
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+#
+# HP CXX compiler
+# See http://h30097.www3.hp.com/cplus/?jumpid=reg_R1002_USEN
+#
+#
+# Notes on this toolset:
+#
+# - Because of very subtle issues with the default ansi mode, strict_ansi mode
+#   is used for compilation. One example of things that don't work correctly in
+#   the default ansi mode is overload resolution of function templates when
+#   mixed with non-template functions.
+#
+# - For template instantiation "-timplicit_local" is used. Previously,
+#   "-tlocal" has been tried to avoid the need for a template repository
+#   but this doesn't work with manually instantiated templates. "-tweak"
+#   has not been used to avoid the stream of warning messages issued by
+#   ar or ld when creating a library or linking an application.
+#
+# - Debug symbols are generated with "-g3", as this works both in debug and
+#   release mode. When compiling C++ code without optimization, we additionally
+#   use "-gall", which generates full symbol table information for all classes,
+#   structs, and unions. As this turns off optimization, it can't be used when
+#   optimization is needed.
+#
+
+import feature generators common ;
+import toolset : flags ;
+
+feature.extend toolset : hp_cxx ;
+feature.extend c++abi : cxxarm ;
+
+# Inherit from Unix toolset to get library ordering magic.
+toolset.inherit  hp_cxx : unix ;
+
+generators.override hp_cxx.prebuilt : builtin.lib-generator ;
+generators.override hp_cxx.prebuilt : builtin.prebuilt ;
+generators.override hp_cxx.searched-lib-generator : searched-lib-generator ;
+
+
+rule init ( version ? : command * : options * )
+{
+    local condition = [ common.check-init-parameters hp_cxx : version $(version) ] ;
+    
+    local command = [ common.get-invocation-command hp_cxx : cxx : $(command) ] ;
+    
+    if $(command)
+    {
+        local root = [ common.get-absolute-tool-path $(command[-1]) ] ;
+
+        if $(root)
+        {
+            flags hp_cxx .root $(condition) : "\"$(root)\"/" ;
+        }        
+    }      
+    # If we can't find 'cxx' anyway, at least show 'cxx' in the commands
+    command ?= cxx ;
+        
+    common.handle-options hp_cxx : $(condition) : $(command) : $(options) ;               
+}
+
+generators.register-c-compiler hp_cxx.compile.c++ : CPP : OBJ : <toolset>hp_cxx ;
+generators.register-c-compiler hp_cxx.compile.c : C : OBJ : <toolset>hp_cxx ;
+
+
+
+# No static linking as far as I can tell.
+# flags cxx LINKFLAGS <runtime-link>static : -bstatic ;
+flags hp_cxx.compile OPTIONS <debug-symbols>on : -g3 ;
+flags hp_cxx.compile OPTIONS <optimization>off/<debug-symbols>on : -gall ;
+flags hp_cxx.link OPTIONS <debug-symbols>on : -g ;
+flags hp_cxx.link OPTIONS <debug-symbols>off : -s ;
+
+flags hp_cxx.compile OPTIONS <optimization>off : -O0 ;
+flags hp_cxx.compile OPTIONS <optimization>speed/<inlining>on : -O2 ;
+flags hp_cxx.compile OPTIONS <optimization>speed : -O2 ;
+
+# This (undocumented) macro needs to be defined to get all C function
+# overloads required by the C++ standard.
+flags hp_cxx.compile.c++ OPTIONS : -D__CNAME_OVERLOADS ;
+
+# Added for threading support
+flags hp_cxx.compile OPTIONS <threading>multi : -pthread ;
+flags hp_cxx.link OPTIONS <threading>multi : -pthread ;
+
+flags hp_cxx.compile OPTIONS <optimization>space/<inlining>on : <inlining>size ;
+flags hp_cxx.compile OPTIONS <optimization>space : -O1 ;
+flags hp_cxx.compile OPTIONS <inlining>off : -inline none ;
+
+# The compiler versions tried (up to V6.5-040) hang when compiling Boost code
+# with full inlining enabled. So leave it at the default level for now.
+#
+# flags hp_cxx.compile OPTIONS <inlining>full : -inline all ;
+
+flags hp_cxx.compile OPTIONS <profiling>on : -pg ;
+flags hp_cxx.link OPTIONS <profiling>on : -pg ;
+
+# Selection of the object model. This flag is needed on both the C++ compiler
+# and linker command line.
+
+# Unspecified ABI translates to '-model ansi' as most
+# standard-conforming.
+flags hp_cxx.compile.c++ OPTIONS <c++abi> : -model ansi : : hack-hack ;
+flags hp_cxx.compile.c++ OPTIONS <c++abi>cxxarm : -model arm ;
+flags hp_cxx.link OPTIONS <c++abi> : -model ansi : : hack-hack ;
+flags hp_cxx.link OPTIONS <c++abi>cxxarm : -model arm ;
+
+# Display a descriptive tag together with each compiler message. This tag can
+# be used by the user to explicitely suppress the compiler message.
+flags hp_cxx.compile OPTIONS : -msg_display_tag ;
+
+flags hp_cxx.compile OPTIONS <cflags> ;
+flags hp_cxx.compile.c++ OPTIONS <cxxflags> ;
+flags hp_cxx.compile DEFINES <define> ;
+flags hp_cxx.compile INCLUDES <include> ;
+flags hp_cxx.link OPTIONS <linkflags> ;
+
+flags hp_cxx.link LIBPATH <library-path> ;
+flags hp_cxx.link LIBRARIES <library-file> ;
+flags hp_cxx.link FINDLIBS-ST <find-static-library> ;
+flags hp_cxx.link FINDLIBS-SA <find-shared-library> ;
+
+flags hp_cxx.compile.c++ TEMPLATE_DEPTH <c++-template-depth> ;
+
+actions link bind LIBRARIES
+{
+    $(CONFIG_COMMAND) -noimplicit_include $(OPTIONS) -o "$(<)" -L$(LIBPATH) "$(>)" "$(LIBRARIES)" -l$(FINDLIBS-ST) -l$(FINDLIBS-SA) -lrt -lm
+}
+
+# When creating dynamic libraries, we don't want to be warned about unresolved
+# symbols, therefore all unresolved symbols are marked as expected by
+# '-expect_unresolved *'. This also mirrors the behaviour of the GNU tool
+# chain.
+
+actions link.dll bind LIBRARIES
+{
+    $(CONFIG_COMMAND) -shared -expect_unresolved \* -noimplicit_include $(OPTIONS) -o "$(<[1])" -L$(LIBPATH)  "$(>)" "$(LIBRARIES)" -l$(FINDLIBS-ST) -l$(FINDLIBS-SA) -lm
+}
+
+
+# Note: Relaxed ANSI mode (-std) is used for compilation because in strict ANSI
+# C89 mode (-std1) the compiler doesn't accept C++ comments in C files. As -std
+# is the default, no special flag is needed.
+actions compile.c
+{
+    $(.root:E=)cc -c $(OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -o "$(<)" "$(>)"
+}
+
+# Note: The compiler is forced to compile the files as C++ (-x cxx) because
+# otherwise it will silently ignore files with no file extension.
+#
+# Note: We deliberately don't suppress any warnings on the compiler command
+# line, the user can always do this in a customized toolset later on.
+
+rule compile.c++
+{
+    # We preprocess the TEMPLATE_DEPTH command line option here because we found
+    # no way to do it correctly in the actual action code. There we either get
+    # the -pending_instantiations parameter when no c++-template-depth property
+    # has been specified or we get additional quotes around
+    # "-pending_instantiations ".
+    local template-depth = [ on $(1) return $(TEMPLATE_DEPTH) ] ;
+    TEMPLATE_DEPTH on $(1) = "-pending_instantiations "$(template-depth) ;
+}
+
+actions compile.c++
+{
+    $(CONFIG_COMMAND) -x cxx -c -std strict_ansi -nopure_cname -noimplicit_include -timplicit_local -ptr "$(<[1]:D)/cxx_repository" $(OPTIONS) $(TEMPLATE_DEPTH) -D$(DEFINES) -I"$(INCLUDES)" -o "$(<)" "$(>)"
+}
+
+# Always create archive from scratch. See the gcc toolet for rationale.
+RM = [ common.rm-command ] ;
+actions together piecemeal archive
+{
+  $(RM) "$(<)"
+  ar rc $(<) $(>)
+}
diff --git a/jam-files/boost-build/tools/hpfortran.jam b/jam-files/boost-build/tools/hpfortran.jam
new file mode 100644
index 00000000..96e8d18b
--- /dev/null
+++ b/jam-files/boost-build/tools/hpfortran.jam
@@ -0,0 +1,35 @@
+# Copyright (C) 2004 Toon Knapen
+#
+#  Use, modification and distribution is subject to the Boost Software
+#  License Version 1.0. (See accompanying file LICENSE_1_0.txt or
+#  http://www.boost.org/LICENSE_1_0.txt)
+
+import toolset : flags ;
+import feature ;
+import fortran ;
+
+rule init ( version ? : command * : options * )
+{
+}
+
+# Declare flags and action for compilation
+flags hpfortran OPTIONS <optimization>off : -O0 ;
+flags hpfortran OPTIONS <optimization>speed : -O3 ;
+flags hpfortran OPTIONS <optimization>space : -O1 ;
+
+flags hpfortran OPTIONS <debug-symbols>on : -g ;
+flags hpfortran OPTIONS <profiling>on : -pg ;
+
+flags hpfortran DEFINES <define> ;
+flags hpfortran INCLUDES <include> ;
+
+rule compile.fortran
+{
+}
+
+actions compile.fortran
+{
+  f77 +DD64 $(OPTIONS) -D$(DEFINES) -I$(INCLUDES) -c -o "$(<)" "$(>)" 
+}
+
+generators.register-fortran-compiler hpfortran.compile.fortran : FORTRAN : OBJ ; 
diff --git a/jam-files/boost-build/tools/ifort.jam b/jam-files/boost-build/tools/ifort.jam
new file mode 100644
index 00000000..eb7c1988
--- /dev/null
+++ b/jam-files/boost-build/tools/ifort.jam
@@ -0,0 +1,44 @@
+# Copyright (C) 2004 Toon Knapen
+#
+#  Use, modification and distribution is subject to the Boost Software
+#  License Version 1.0. (See accompanying file LICENSE_1_0.txt or
+#  http://www.boost.org/LICENSE_1_0.txt)
+
+import toolset : flags ;
+import feature ;
+import fortran ;
+
+rule init ( version ? : command * : options * )
+{
+}
+
+# Declare flags and action for compilation
+flags ifort OPTIONS <fflags> ;
+
+flags ifort OPTIONS <optimization>off : /Od ;
+flags ifort OPTIONS <optimization>speed : /O3 ;
+flags ifort OPTIONS <optimization>space : /O1 ;
+
+flags ifort OPTIONS <debug-symbols>on : /debug:full ;
+flags ifort OPTIONS <profiling>on : /Qprof_gen ;
+
+flags ifort.compile FFLAGS <runtime-debugging>off/<runtime-link>shared : /MD ;
+flags ifort.compile FFLAGS <runtime-debugging>on/<runtime-link>shared : /MDd ;
+flags ifort.compile FFLAGS <runtime-debugging>off/<runtime-link>static/<threading>single : /ML ;
+flags ifort.compile FFLAGS <runtime-debugging>on/<runtime-link>static/<threading>single : /MLd ;
+flags ifort.compile FFLAGS <runtime-debugging>off/<runtime-link>static/<threading>multi : /MT ;
+flags ifort.compile FFLAGS <runtime-debugging>on/<runtime-link>static/<threading>multi : /MTd ;
+
+flags ifort DEFINES <define> ;
+flags ifort INCLUDES <include> ;
+
+rule compile.fortran
+{
+}
+
+actions compile.fortran
+{
+  ifort $(FFLAGS) $(OPTIONS) /names:lowercase /D$(DEFINES) /I"$(INCLUDES)" /c /object:"$(<)" "$(>)" 
+}
+
+generators.register-fortran-compiler ifort.compile.fortran : FORTRAN : OBJ ; 
diff --git a/jam-files/boost-build/tools/intel-darwin.jam b/jam-files/boost-build/tools/intel-darwin.jam
new file mode 100644
index 00000000..aa0fd8fb
--- /dev/null
+++ b/jam-files/boost-build/tools/intel-darwin.jam
@@ -0,0 +1,220 @@
+# Copyright Vladimir Prus 2004.
+# Copyright Noel Belcourt 2007.
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt
+# or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+import intel ;
+import feature : feature ;
+import os ;
+import toolset ;
+import toolset : flags ;
+import gcc ;
+import common ;
+import errors ;
+import generators ;
+
+feature.extend-subfeature toolset intel : platform : darwin ;
+
+toolset.inherit-generators intel-darwin 
+  <toolset>intel <toolset-intel:platform>darwin 
+  : gcc 
+  # Don't inherit PCH generators. They were not tested, and probably
+  # don't work for this compiler.
+  : gcc.mingw.link gcc.mingw.link.dll gcc.compile.c.pch gcc.compile.c++.pch
+  ;
+
+generators.override intel-darwin.prebuilt : builtin.lib-generator ;
+generators.override intel-darwin.prebuilt : builtin.prebuilt ;
+generators.override intel-darwin.searched-lib-generator : searched-lib-generator ;
+
+toolset.inherit-rules intel-darwin : gcc ;
+toolset.inherit-flags intel-darwin : gcc 
+        : <inlining>off <inlining>on <inlining>full <optimization>space 
+          <warnings>off <warnings>all <warnings>on
+          <architecture>x86/<address-model>32
+          <architecture>x86/<address-model>64
+        ;
+        
+if [ MATCH (--debug-configuration) : [ modules.peek : ARGV ] ]
+{
+    .debug-configuration = true ;
+}
+                       
+# vectorization diagnostics
+feature vectorize : off on full ;
+
+# Initializes the intel-darwin toolset
+#   version in mandatory
+#   name (default icc) is used to invoke the specified intel complier
+#   compile and link options allow you to specify addition command line options for each version
+rule init ( version ? :  command * : options * )
+{
+    local condition = [ common.check-init-parameters intel-darwin
+        : version $(version) ] ;
+    
+    command = [ common.get-invocation-command intel-darwin : icc 
+        : $(command) : /opt/intel_cc_80/bin ] ;
+
+    common.handle-options intel-darwin : $(condition) : $(command) : $(options) ;
+
+    gcc.init-link-flags intel-darwin darwin $(condition) ;
+
+    # handle <library-path>
+    # local library-path = [ feature.get-values <library-path> : $(options) ] ;
+    # flags intel-darwin.link USER_OPTIONS $(condition) : [ feature.get-values <dll-path> : $(options) ] ;
+
+    local root = [ feature.get-values <root> : $(options) ] ;
+    local bin ;
+    if $(command) || $(root)
+    {
+        bin ?= [ common.get-absolute-tool-path $(command[-1]) ] ;
+        root ?= $(bin:D) ;
+    
+        if $(root)
+        {
+            # Libraries required to run the executable may be in either
+            # $(root)/lib (10.1 and earlier) 
+            #     or 
+            # $(root)/lib/architecture-name (11.0 and later:
+            local lib_path = $(root)/lib $(root:P)/lib/$(bin:B) ;
+            if $(.debug-configuration)
+            {
+                ECHO notice: using intel libraries :: $(condition) :: $(lib_path) ;
+            }
+            flags intel-darwin.link RUN_PATH $(condition) : $(lib_path) ;
+        }   
+    }
+
+    local m = [ MATCH (..).* : $(version) ] ;
+    local n = [ MATCH (.)\\. : $(m) ] ;
+    if $(n) {
+      m = $(n) ;
+    }
+
+    local major = $(m) ;
+    
+    if $(major) = "9" {
+      flags intel-darwin.compile OPTIONS $(condition)/<inlining>off : -Ob0 ;
+      flags intel-darwin.compile OPTIONS $(condition)/<inlining>on : -Ob1  ;
+      flags intel-darwin.compile OPTIONS $(condition)/<inlining>full : -Ob2  ;
+      flags intel-darwin.compile OPTIONS $(condition)/<vectorize>off : -vec-report0 ;
+      flags intel-darwin.compile OPTIONS $(condition)/<vectorize>on : -vec-report1 ;
+      flags intel-darwin.compile OPTIONS $(condition)/<vectorize>full : -vec-report5 ;
+      flags intel-darwin.link OPTIONS $(condition)/<runtime-link>static : -static -static-libcxa -lstdc++ -lpthread ;
+      flags intel-darwin.link OPTIONS $(condition)/<runtime-link>shared : -shared-libcxa -lstdc++ -lpthread ;
+    }
+    else {
+      flags intel-darwin.compile OPTIONS $(condition)/<inlining>off : -inline-level=0 ;
+      flags intel-darwin.compile OPTIONS $(condition)/<inlining>on : -inline-level=1  ;
+      flags intel-darwin.compile OPTIONS $(condition)/<inlining>full : -inline-level=2  ;
+      flags intel-darwin.compile OPTIONS $(condition)/<vectorize>off : -vec-report0 ;
+      flags intel-darwin.compile OPTIONS $(condition)/<vectorize>on : -vec-report1 ;
+      flags intel-darwin.compile OPTIONS $(condition)/<vectorize>full : -vec-report5 ;
+      flags intel-darwin.link OPTIONS $(condition)/<runtime-link>static : -static -static-intel -lstdc++ -lpthread ;
+      flags intel-darwin.link OPTIONS $(condition)/<runtime-link>shared : -shared-intel -lstdc++ -lpthread ;
+    }
+
+    local minor = [ MATCH ".*\\.(.).*" : $(version) ] ;
+
+    # wchar_t char_traits workaround for compilers older than 10.2
+    if $(major) = "9" || ( $(major) = "10" && ( $(minor) = "0" || $(minor) = "1" ) ) {
+        flags intel-darwin.compile DEFINES $(condition) : __WINT_TYPE__=int : unchecked ;
+    }
+}
+
+SPACE = " " ;
+
+flags intel-darwin.compile OPTIONS <cflags> ;
+flags intel-darwin.compile OPTIONS <cxxflags> ;
+# flags intel-darwin.compile INCLUDES <include> ;
+
+flags intel-darwin.compile OPTIONS <optimization>space : -O1 ; # no specific space optimization flag in icc
+
+# 
+cpu-type-em64t = prescott nocona ;
+flags intel-darwin.compile OPTIONS <instruction-set>$(cpu-type-em64t)/<address-model>32 : -m32 ; # -mcmodel=small ;
+flags intel-darwin.compile OPTIONS <instruction-set>$(cpu-type-em64t)/<address-model>64 : -m64 ; # -mcmodel=large ;
+
+flags intel-darwin.compile.c OPTIONS <warnings>off : -w0 ;
+flags intel-darwin.compile.c OPTIONS <warnings>on : -w1 ;
+flags intel-darwin.compile.c OPTIONS <warnings>all : -w2 ;
+
+flags intel-darwin.compile.c++ OPTIONS <warnings>off : -w0 ;
+flags intel-darwin.compile.c++ OPTIONS <warnings>on : -w1 ;
+flags intel-darwin.compile.c++ OPTIONS <warnings>all : -w2 ;
+
+actions compile.c
+{
+    "$(CONFIG_COMMAND)" -xc $(OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -c -o "$(<)" "$(>)"
+}
+
+actions compile.c++
+{
+    "$(CONFIG_COMMAND)" -xc++ $(OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -c -o "$(<)" "$(>)"
+}
+
+flags intel-darwin ARFLAGS <archiveflags> ;
+
+# Default value. Mostly for the sake of intel-linux
+# that inherits from gcc, but does not has the same
+# logic to set the .AR variable. We can put the same
+# logic in intel-linux, but that's hardly worth the trouble
+# as on Linux, 'ar' is always available.
+.AR = ar ;
+
+rule archive ( targets * : sources * : properties * )
+{
+  # Always remove archive and start again. Here's rationale from
+  # Andre Hentz:
+  #
+  # I had a file, say a1.c, that was included into liba.a. 
+  # I moved a1.c to a2.c, updated my Jamfiles and rebuilt. 
+  # My program was crashing with absurd errors. 
+  # After some debugging I traced it back to the fact that a1.o was *still* 
+  # in liba.a 
+  #
+  # Rene Rivera:
+  #
+  # Originally removing the archive was done by splicing an RM
+  # onto the archive action. That makes archives fail to build on NT
+  # when they have many files because it will no longer execute the
+  # action directly and blow the line length limit. Instead we
+  # remove the file in a different action, just before the building
+  # of the archive.
+  #
+  local clean.a = $(targets[1])(clean) ;
+  TEMPORARY $(clean.a) ;
+  NOCARE $(clean.a) ;
+  LOCATE on $(clean.a) = [ on $(targets[1]) return $(LOCATE) ] ;
+  DEPENDS $(clean.a) : $(sources) ;
+  DEPENDS $(targets) : $(clean.a) ;
+  common.RmTemps $(clean.a) : $(targets) ;
+}
+
+actions piecemeal archive
+{
+  "$(.AR)" $(AROPTIONS) rc "$(<)" "$(>)"
+  "ranlib" -cs "$(<)"
+}
+
+flags intel-darwin.link USER_OPTIONS <linkflags> ;
+
+# Declare actions for linking
+rule link ( targets * : sources * : properties * )
+{
+  SPACE on $(targets) = " " ;
+  # Serialize execution of the 'link' action, since
+  # running N links in parallel is just slower.
+  JAM_SEMAPHORE on $(targets) = <s>intel-darwin-link-semaphore ;
+}
+
+actions link bind LIBRARIES
+{
+    "$(CONFIG_COMMAND)" $(USER_OPTIONS) -L"$(LINKPATH)" -o "$(<)" "$(>)" "$(LIBRARIES)" -l$(FINDLIBS-SA) -l$(FINDLIBS-ST) $(OPTIONS)
+}
+
+actions link.dll bind LIBRARIES
+{
+    "$(CONFIG_COMMAND)" $(USER_OPTIONS) -L"$(LINKPATH)" -o "$(<)" -single_module -dynamiclib -install_name "$(<[1]:D=)" "$(>)"  "$(LIBRARIES)" -l$(FINDLIBS-SA) -l$(FINDLIBS-ST) $(OPTIONS)
+}
diff --git a/jam-files/boost-build/tools/intel-linux.jam b/jam-files/boost-build/tools/intel-linux.jam
new file mode 100644
index 00000000..d9164add
--- /dev/null
+++ b/jam-files/boost-build/tools/intel-linux.jam
@@ -0,0 +1,250 @@
+#  Copyright (c) 2003 Michael Stevens
+#  Copyright (c) 2011 Bryce Lelbach
+#
+#  Use, modification and distribution is subject to the Boost Software
+#  License Version 1.0. (See accompanying file LICENSE_1_0.txt or
+#  http://www.boost.org/LICENSE_1_0.txt)
+
+import toolset ;
+import feature ;
+import toolset : flags ;
+
+import intel ;
+import gcc ;
+import common ;
+import errors ;
+import generators ;
+import type ;
+import numbers ;
+
+feature.extend-subfeature toolset intel : platform : linux ;
+
+toolset.inherit-generators intel-linux 
+     <toolset>intel <toolset-intel:platform>linux : gcc : gcc.mingw.link gcc.mingw.link.dll ;
+generators.override intel-linux.prebuilt : builtin.lib-generator ;
+generators.override intel-linux.prebuilt : builtin.prebuilt ;
+generators.override intel-linux.searched-lib-generator : searched-lib-generator ;
+
+# Override default do-nothing generators.
+generators.override intel-linux.compile.c.pch   : pch.default-c-pch-generator   ;
+generators.override intel-linux.compile.c++.pch : pch.default-cpp-pch-generator ;
+ 
+type.set-generated-target-suffix PCH : <toolset>intel <toolset-intel:platform>linux : pchi ;
+
+toolset.inherit-rules intel-linux : gcc ;
+toolset.inherit-flags intel-linux : gcc 
+        : <inlining>off <inlining>on <inlining>full
+          <optimization>space <optimization>speed
+          <warnings>off <warnings>all <warnings>on
+        ;
+        
+if [ MATCH (--debug-configuration) : [ modules.peek : ARGV ] ]
+{
+    .debug-configuration = true ;
+}
+                       
+# Initializes the intel-linux toolset
+#   version in mandatory
+#   name (default icpc) is used to invoke the specified intel-linux complier
+#   compile and link options allow you to specify addition command line options for each version
+rule init ( version ? :  command * : options * )
+{
+    local condition = [ common.check-init-parameters intel-linux
+        : version $(version) ] ;
+    
+    if $(.debug-configuration)
+    {
+        ECHO "notice: intel-linux version is" $(version) ;
+    }
+
+    local default_path ;
+
+    # Intel C++ Composer XE 2011 for Linux, aka Intel C++ Compiler XE 12.0,
+    # aka intel-linux-12.0. In this version, Intel thankfully decides to install
+    # to a sane 'intel' folder in /opt.
+    if [ MATCH "(12[.]0|12)" : $(version) ]
+        { default_path = /opt/intel/bin ; }
+    # Intel C++ Compiler 11.1. 
+    else if [ MATCH "(11[.]1)" : $(version) ]
+        { default_path = /opt/intel_cce_11.1.064.x86_64/bin ; }
+    # Intel C++ Compiler 11.0. 
+    else if [ MATCH "(11[.]0|11)" : $(version) ]
+        { default_path = /opt/intel_cce_11.0.074.x86_64/bin ; }
+    # Intel C++ Compiler 10.1. 
+    else if [ MATCH "(10[.]1)" : $(version) ]
+        { default_path = /opt/intel_cce_10.1.013_x64/bin ; }
+    # Intel C++ Compiler 9.1. 
+    else if [ MATCH "(9[.]1)" : $(version) ]
+        { default_path = /opt/intel_cc_91/bin ; }
+    # Intel C++ Compiler 9.0. 
+    else if [ MATCH "(9[.]0|9)" : $(version) ]
+        { default_path = /opt/intel_cc_90/bin ; }
+    # Intel C++ Compiler 8.1. 
+    else if [ MATCH "(8[.]1)" : $(version) ]
+        { default_path = /opt/intel_cc_81/bin ; }
+    # Intel C++ Compiler 8.0 - this used to be the default, so now it's the
+    # fallback. 
+    else 
+        { default_path = /opt/intel_cc_80/bin ; }
+            
+    if $(.debug-configuration)
+    {
+        ECHO "notice: default search path for intel-linux is" $(default_path) ;
+    }
+
+    command = [ common.get-invocation-command intel-linux : icpc 
+        : $(command) : $(default_path) ] ;
+                
+    common.handle-options intel-linux : $(condition) : $(command) : $(options) ;
+
+    gcc.init-link-flags intel-linux gnu $(condition) ;
+    
+    local root = [ feature.get-values <root> : $(options) ] ;
+    local bin ;
+    if $(command) || $(root)
+    {
+        bin ?= [ common.get-absolute-tool-path $(command[-1]) ] ;
+        root ?= $(bin:D) ;
+        
+        local command-string = $(command:J=" ") ;
+        local version-output = [ SHELL "$(command-string) --version" ] ;
+        local real-version = [ MATCH "([0-9.]+)" : $(version-output) ] ;
+        local major = [ MATCH "([0-9]+).*" : $(real-version) ] ;
+        
+        # If we failed to determine major version, use the behaviour for
+        # the current compiler.
+        if $(major) && [ numbers.less $(major) 10 ]
+        {
+            flags intel-linux.compile OPTIONS $(condition)/<inlining>off : "-Ob0" ;
+            flags intel-linux.compile OPTIONS $(condition)/<inlining>on : "-Ob1" ;
+            flags intel-linux.compile OPTIONS $(condition)/<inlining>full : "-Ob2" ;            
+            flags intel-linux.compile OPTIONS $(condition)/<optimization>space : "-O1" ;
+            flags intel-linux.compile OPTIONS $(condition)/<optimization>speed : "-O3 -ip" ;
+        }
+        else if $(major) && [ numbers.less $(major) 11 ]
+        {
+            flags intel-linux.compile OPTIONS $(condition)/<inlining>off : "-inline-level=0" ; 
+            flags intel-linux.compile OPTIONS $(condition)/<inlining>on : "-inline-level=1" ; 
+            flags intel-linux.compile OPTIONS $(condition)/<inlining>full : "-inline-level=2" ;                
+            flags intel-linux.compile OPTIONS $(condition)/<optimization>space : "-O1" ;
+            flags intel-linux.compile OPTIONS $(condition)/<optimization>speed : "-O3 -ip" ;
+        }
+        else # newer version of intel do have -Os (at least 11+, don't know about 10)
+        {                        
+            flags intel-linux.compile OPTIONS $(condition)/<inlining>off : "-inline-level=0" ; 
+            flags intel-linux.compile OPTIONS $(condition)/<inlining>on : "-inline-level=1" ; 
+            flags intel-linux.compile OPTIONS $(condition)/<inlining>full : "-inline-level=2" ;                
+            flags intel-linux.compile OPTIONS $(condition)/<optimization>space : "-Os" ;
+            flags intel-linux.compile OPTIONS $(condition)/<optimization>speed : "-O3 -ip" ;
+        }        
+           
+        if $(root)
+        {
+            # Libraries required to run the executable may be in either
+            # $(root)/lib (10.1 and earlier) 
+            #     or 
+            # $(root)/lib/architecture-name (11.0 and later:
+            local lib_path = $(root)/lib $(root:P)/lib/$(bin:B) ;
+            if $(.debug-configuration)
+            {
+                ECHO notice: using intel libraries :: $(condition) :: $(lib_path) ;
+            }
+            flags intel-linux.link RUN_PATH $(condition) : $(lib_path) ;
+        }   
+    }
+}
+
+SPACE = " " ;
+
+flags intel-linux.compile OPTIONS <warnings>off : -w0 ;
+flags intel-linux.compile OPTIONS <warnings>on : -w1 ;
+flags intel-linux.compile OPTIONS <warnings>all : -w2 ;
+
+rule compile.c++ ( targets * : sources * : properties * )
+{
+    gcc.setup-threading $(targets) : $(sources) : $(properties) ;
+    gcc.setup-fpic $(targets) : $(sources) : $(properties) ;
+    gcc.setup-address-model $(targets) : $(sources) : $(properties) ;
+    DEPENDS $(<) : [ on $(<) return $(PCH_FILE) ] ;
+}
+
+actions compile.c++ bind PCH_FILE
+{
+    "$(CONFIG_COMMAND)" -c -xc++ $(OPTIONS) $(USER_OPTIONS) -D$(DEFINES) -I"$(INCLUDES)"  -use-pch"$(PCH_FILE)" -c -o "$(<)" "$(>)"
+}
+
+rule compile.c ( targets * : sources * : properties * )
+{
+    gcc.setup-threading $(targets) : $(sources) : $(properties) ;
+    gcc.setup-fpic $(targets) : $(sources) : $(properties) ;
+    gcc.setup-address-model $(targets) : $(sources) : $(properties) ;    
+    DEPENDS $(<) : [ on $(<) return $(PCH_FILE) ] ;
+}
+
+actions compile.c bind PCH_FILE
+{
+    "$(CONFIG_COMMAND)" -c -xc $(OPTIONS) $(USER_OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -use-pch"$(PCH_FILE)" -c -o "$(<)" "$(>)"
+}
+
+rule compile.c++.pch ( targets * : sources * : properties * )
+{
+    gcc.setup-threading $(targets) : $(sources) : $(properties) ;
+    gcc.setup-fpic $(targets) : $(sources) : $(properties) ;
+    gcc.setup-address-model $(targets) : $(sources) : $(properties) ;    
+}
+#
+# Compiling a pch first deletes any existing *.pchi file, as Intel's compiler
+# won't over-write an existing pch: instead it creates filename$1.pchi, filename$2.pchi
+# etc - which appear not to do anything except take up disk space :-(
+#
+actions compile.c++.pch
+{
+    rm -f "$(<)" && "$(CONFIG_COMMAND)" -x c++-header $(OPTIONS) $(USER_OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -c -pch-create "$(<)" "$(>)"
+}
+
+actions compile.fortran
+{
+    "ifort" -c $(OPTIONS) $(USER_OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -c -o "$(<)" "$(>)"
+}
+
+rule compile.c.pch ( targets * : sources * : properties * )
+{
+    gcc.setup-threading $(targets) : $(sources) : $(properties) ;
+    gcc.setup-fpic $(targets) : $(sources) : $(properties) ;
+    gcc.setup-address-model $(targets) : $(sources) : $(properties) ;    
+}
+
+actions compile.c.pch
+{
+    rm -f "$(<)" && "$(CONFIG_COMMAND)" -x c-header $(OPTIONS) $(USER_OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -c -pch-create "$(<)" "$(>)"
+}
+
+rule link ( targets * : sources * : properties * )
+{
+    gcc.setup-threading $(targets) : $(sources) : $(properties) ;
+    gcc.setup-address-model $(targets) : $(sources) : $(properties) ;    
+    SPACE on $(targets) = " " ;
+    JAM_SEMAPHORE on $(targets) = <s>intel-linux-link-semaphore ;
+}
+
+actions link bind LIBRARIES
+{
+    "$(CONFIG_COMMAND)" -L"$(LINKPATH)" -Wl,-R$(SPACE)-Wl,"$(RPATH)" -Wl,-rpath-link$(SPACE)-Wl,"$(RPATH_LINK)" -o "$(<)" "$(>)" "$(LIBRARIES)" -l$(FINDLIBS-SA) -l$(FINDLIBS-ST) $(OPTIONS) $(USER_OPTIONS)
+}
+
+rule link.dll ( targets * : sources * : properties * )
+{
+    gcc.setup-threading $(targets) : $(sources) : $(properties) ;
+    gcc.setup-address-model $(targets) : $(sources) : $(properties) ;    
+    SPACE on $(targets) = " " ;
+    JAM_SEMAPHORE on $(targets) = <s>intel-linux-link-semaphore ;
+}
+
+# Differ from 'link' above only by -shared.
+actions link.dll bind LIBRARIES
+{
+    "$(CONFIG_COMMAND)" -L"$(LINKPATH)" -Wl,-R$(SPACE)-Wl,"$(RPATH)" -o "$(<)" -Wl,-soname$(SPACE)-Wl,$(<[1]:D=) -shared "$(>)"  "$(LIBRARIES)" -l$(FINDLIBS-SA) -l$(FINDLIBS-ST) $(OPTIONS) $(USER_OPTIONS)
+}
+
+
+
diff --git a/jam-files/boost-build/tools/intel-win.jam b/jam-files/boost-build/tools/intel-win.jam
new file mode 100644
index 00000000..691b5dce
--- /dev/null
+++ b/jam-files/boost-build/tools/intel-win.jam
@@ -0,0 +1,184 @@
+# Copyright Vladimir Prus 2004.
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt
+# or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+# Importing common is needed because the rules we inherit here depend on it.
+# That is nasty.
+import common ;
+import errors ;
+import feature ;
+import intel ;
+import msvc ;
+import os ;
+import toolset ;
+import generators ;
+import type ;
+
+feature.extend-subfeature toolset intel : platform : win ;
+
+toolset.inherit-generators intel-win <toolset>intel <toolset-intel:platform>win : msvc ;
+toolset.inherit-flags intel-win : msvc : : YLOPTION ;
+toolset.inherit-rules intel-win : msvc ;
+
+# Override default do-nothing generators.
+generators.override intel-win.compile.c.pch   : pch.default-c-pch-generator   ;
+generators.override intel-win.compile.c++.pch : pch.default-cpp-pch-generator ;
+generators.override intel-win.compile.rc : rc.compile.resource ;
+generators.override intel-win.compile.mc : mc.compile ;
+
+toolset.flags intel-win.compile PCH_SOURCE <pch>on : <pch-source> ;
+
+toolset.add-requirements <toolset>intel-win,<runtime-link>shared:<threading>multi ;
+
+# Initializes the intel toolset for windows
+rule init ( version ? :     # the compiler version
+            command * :     # the command to invoke the compiler itself
+            options *       # Additional option: <compatibility>
+                            # either 'vc6', 'vc7', 'vc7.1'
+                            # or 'native'(default).
+          )
+{
+    local compatibility =
+      [ feature.get-values <compatibility> : $(options) ] ;
+    local condition = [  common.check-init-parameters intel-win
+        : version $(version) : compatibility $(compatibility) ] ;
+
+    command = [ common.get-invocation-command intel-win : icl.exe :
+        $(command) ] ;
+
+    common.handle-options intel-win : $(condition) : $(command) : $(options) ;
+
+    local root ;
+    if $(command)
+    {
+        root = [ common.get-absolute-tool-path $(command[-1]) ] ;
+        root = $(root)/ ;
+    }
+
+    local setup ;
+    setup = [ GLOB $(root) : iclvars_*.bat ] ;
+    if ! $(setup)
+    {
+       setup = $(root)/iclvars.bat ;
+    }
+    setup = "call \""$(setup)"\" > nul " ;
+
+    if [ os.name ] = NT
+    {
+        setup = $(setup)"
+" ;
+    }
+    else
+    {
+        setup = "cmd /S /C "$(setup)" \"&&\" " ;
+    }
+
+    toolset.flags intel-win.compile .CC $(condition) : $(setup)icl ;
+    toolset.flags intel-win.link .LD $(condition) : $(setup)xilink ;
+    toolset.flags intel-win.archive .LD $(condition) : $(setup)xilink /lib ;
+    toolset.flags intel-win.link .MT $(condition) : $(setup)mt -nologo ;
+    toolset.flags intel-win.compile .MC $(condition) : $(setup)mc ;
+    toolset.flags intel-win.compile .RC $(condition) : $(setup)rc ;
+
+    local m = [ MATCH (.).* : $(version) ] ;
+    local major = $(m[1]) ;
+
+    local C++FLAGS ;
+
+    C++FLAGS += /nologo ;
+
+    # Reduce the number of spurious error messages
+    C++FLAGS += /Qwn5 /Qwd985 ;
+
+    # Enable ADL
+    C++FLAGS += -Qoption,c,--arg_dep_lookup ; #"c" works for C++, too
+
+    # Disable Microsoft "secure" overloads in Dinkumware libraries since they
+    # cause compile errors with Intel versions 9 and 10.
+    C++FLAGS += -D_SECURE_SCL=0 ;
+
+    if $(major) > 5
+    {
+        C++FLAGS += /Zc:forScope ;  # Add support for correct for loop scoping.
+    }
+
+    # Add options recognized only by intel7 and above.
+    if $(major) >= 7
+    {
+        C++FLAGS += /Qansi_alias ;
+    }
+
+    if $(compatibility) = vc6
+    {
+        C++FLAGS +=
+          # Emulate VC6
+          /Qvc6
+
+          # No wchar_t support in vc6 dinkum library.  Furthermore, in vc6
+          # compatibility-mode, wchar_t is not a distinct type from unsigned
+          # short.
+          -DBOOST_NO_INTRINSIC_WCHAR_T
+          ;
+    }
+    else
+    {
+        if $(major) > 5
+        {
+            # Add support for wchar_t
+            C++FLAGS += /Zc:wchar_t
+              # Tell the dinkumware library about it.
+              -D_NATIVE_WCHAR_T_DEFINED
+              ;
+        }
+    }
+
+    if $(compatibility) && $(compatibility) != native
+    {
+        C++FLAGS += /Q$(base-vc) ;
+    }
+    else
+    {
+        C++FLAGS +=
+          -Qoption,cpp,--arg_dep_lookup
+          # The following options were intended to disable the Intel compiler's
+          # 'bug-emulation' mode, but were later reported to be causing ICE with
+          # Intel-Win 9.0. It is not yet clear which options can be safely used.
+          # -Qoption,cpp,--const_string_literals
+          # -Qoption,cpp,--new_for_init
+          # -Qoption,cpp,--no_implicit_typename
+          # -Qoption,cpp,--no_friend_injection
+          # -Qoption,cpp,--no_microsoft_bugs
+          ;
+    }
+
+    toolset.flags intel-win CFLAGS $(condition) : $(C++FLAGS) ;
+    # By default, when creating PCH, intel adds 'i' to the explicitly
+    # specified name of the PCH file. Of course, Boost.Build is not
+    # happy when compiler produces not the file it was asked for.
+    # The option below stops this behaviour.
+    toolset.flags intel-win CFLAGS : -Qpchi- ;
+
+    if ! $(compatibility)
+    {
+        # If there's no backend version, assume 7.1.
+        compatibility = vc7.1 ;
+    }
+
+    local extract-version = [ MATCH ^vc(.*) : $(compatibility) ] ;
+    if ! $(extract-version)
+    {
+        errors.user-error "Invalid value for compatibility option:"
+            $(compatibility) ;
+    }
+
+    # Depending on the settings, running of tests require some runtime DLLs.
+    toolset.flags intel-win RUN_PATH $(condition) : $(root) ;
+
+    msvc.configure-version-specific intel-win : $(extract-version[1]) : $(condition) ;
+}
+
+toolset.flags intel-win.link LIBRARY_OPTION <toolset>intel : "" ;
+
+toolset.flags intel-win YLOPTION ;
+
diff --git a/jam-files/boost-build/tools/intel.jam b/jam-files/boost-build/tools/intel.jam
new file mode 100644
index 00000000..67038aa2
--- /dev/null
+++ b/jam-files/boost-build/tools/intel.jam
@@ -0,0 +1,34 @@
+# Copyright Vladimir Prus 2004.
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt
+# or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+# This is a generic 'intel' toolset. Depending on the current
+# system, it forwards either to 'intel-linux' or 'intel-win'
+# modules.
+
+import feature ;
+import os ;
+import toolset ;
+
+feature.extend toolset : intel ;
+feature.subfeature toolset intel : platform : : propagated link-incompatible ;
+
+rule init ( * : * )
+{
+    if [ os.name ] = LINUX
+    {
+        toolset.using intel-linux : 
+          $(1) : $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ;
+    }
+    else if [ os.name ] = MACOSX
+    {
+        toolset.using intel-darwin : 
+          $(1) : $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ;
+    }
+    else
+    {
+        toolset.using intel-win :
+          $(1) : $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ;
+    }        
+}
diff --git a/jam-files/boost-build/tools/lex.jam b/jam-files/boost-build/tools/lex.jam
new file mode 100644
index 00000000..75d64131
--- /dev/null
+++ b/jam-files/boost-build/tools/lex.jam
@@ -0,0 +1,33 @@
+# Copyright 2003 Vladimir Prus 
+# Distributed under the Boost Software License, Version 1.0. 
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) 
+
+import type ;
+import generators ;
+import feature ;
+import property ;
+
+
+feature.feature flex.prefix : : free ;
+type.register LEX : l ;
+type.register LEX++ : ll ;
+generators.register-standard lex.lex : LEX : C ;
+generators.register-standard lex.lex : LEX++ : CPP ;
+
+rule init ( )
+{
+}
+
+rule lex ( target : source : properties * )
+{   
+    local r = [ property.select flex.prefix : $(properties) ] ;
+    if $(r)
+    {
+        PREFIX on $(<) = $(r:G=) ;
+    }
+}
+
+actions lex 
+{
+    flex -P$(PREFIX) -o$(<) $(>)    
+}
diff --git a/jam-files/boost-build/tools/make.jam b/jam-files/boost-build/tools/make.jam
new file mode 100644
index 00000000..08567285
--- /dev/null
+++ b/jam-files/boost-build/tools/make.jam
@@ -0,0 +1,72 @@
+# Copyright 2003 Dave Abrahams
+# Copyright 2003 Douglas Gregor
+# Copyright 2006 Rene Rivera
+# Copyright 2002, 2003, 2004, 2005, 2006 Vladimir Prus
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+#  This module defines the 'make' main target rule.
+
+import "class" : new ;
+import errors : error ;
+import project ;
+import property ;
+import property-set ;
+import regex ;
+import targets ;
+
+
+class make-target-class : basic-target
+{
+    import type regex virtual-target ;
+    import "class" : new ;
+
+    rule __init__ ( name : project : sources * : requirements *
+        : default-build * : usage-requirements * )
+    {
+        basic-target.__init__ $(name) : $(project) : $(sources) :
+            $(requirements) : $(default-build) : $(usage-requirements) ;
+    }
+
+    rule construct ( name : source-targets * : property-set )
+    {
+        local action-name = [ $(property-set).get <action> ] ;
+        # 'm' will always be set -- we add '@' ourselves in the 'make' rule
+        # below.
+        local m = [ MATCH ^@(.*) : $(action-name) ] ;
+
+        local a = [ new action $(source-targets) : $(m[1]) : $(property-set) ] ;
+        local t = [ new file-target $(self.name) exact : [ type.type
+            $(self.name) ] : $(self.project) : $(a) ] ;
+        return [ property-set.empty ] [ virtual-target.register $(t) ] ;
+    }
+}
+
+
+# Declares the 'make' main target.
+#
+rule make ( target-name : sources * : generating-rule + : requirements * :
+    usage-requirements * )
+{
+    local project = [ project.current ] ;
+
+    # The '@' sign causes the feature.jam module to qualify rule name with the
+    # module name of current project, if needed.
+    local m = [ MATCH ^(@).* : $(generating-rule) ] ;
+    if ! $(m)
+    {
+        generating-rule = @$(generating-rule) ;
+    }
+    requirements += <action>$(generating-rule) ;
+
+    targets.main-target-alternative
+        [ new make-target-class $(target-name) : $(project)
+            : [ targets.main-target-sources $(sources) : $(target-name) ]
+            : [ targets.main-target-requirements $(requirements) : $(project) ]
+            : [ targets.main-target-default-build : $(project) ]
+            : [ targets.main-target-usage-requirements $(usage-requirements) :
+                $(project) ] ] ;
+}
+
+
+IMPORT $(__name__) : make : : make ;
diff --git a/jam-files/boost-build/tools/make.py b/jam-files/boost-build/tools/make.py
new file mode 100644
index 00000000..10baa1cb
--- /dev/null
+++ b/jam-files/boost-build/tools/make.py
@@ -0,0 +1,59 @@
+# Status: ported.
+# Base revision: 64068
+
+# Copyright 2003 Dave Abrahams 
+# Copyright 2003 Douglas Gregor 
+# Copyright 2006 Rene Rivera 
+# Copyright 2002, 2003, 2004, 2005, 2006 Vladimir Prus 
+# Distributed under the Boost Software License, Version 1.0. 
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) 
+
+#  This module defines the 'make' main target rule.
+
+from b2.build.targets import BasicTarget
+from b2.build.virtual_target import Action, FileTarget
+from b2.build import type
+from b2.manager import get_manager
+import b2.build.property_set
+
+
+class MakeTarget(BasicTarget):
+  
+    def construct(self, name, source_targets, property_set):
+
+        action_name = property_set.get("<action>")[0]            
+        action = Action(get_manager(), source_targets, action_name[1:], property_set)
+        target = FileTarget(self.name(), type.type(self.name()),
+                            self.project(), action, exact=True)    
+        return [ b2.build.property_set.empty(),
+                 [self.project().manager().virtual_targets().register(target)]]
+
+def make (target_name, sources, generating_rule,
+          requirements=None, usage_requirements=None):
+
+    target_name = target_name[0]
+    generating_rule = generating_rule[0]
+    if generating_rule[0] != '@':
+        generating_rule = '@' + generating_rule
+
+    if not requirements:
+        requirements = []
+
+        
+    requirements.append("<action>%s" % generating_rule)
+    
+    m = get_manager()
+    targets = m.targets()
+    project = m.projects().current()
+    engine = m.engine()
+    engine.register_bjam_action(generating_rule)
+
+    targets.main_target_alternative(MakeTarget(
+        target_name, project,
+        targets.main_target_sources(sources, target_name),
+        targets.main_target_requirements(requirements, project),
+        targets.main_target_default_build([], project),
+        targets.main_target_usage_requirements(usage_requirements or [], project)))
+
+get_manager().projects().add_rule("make", make)
+
diff --git a/jam-files/boost-build/tools/mc.jam b/jam-files/boost-build/tools/mc.jam
new file mode 100644
index 00000000..57837773
--- /dev/null
+++ b/jam-files/boost-build/tools/mc.jam
@@ -0,0 +1,44 @@
+#~ Copyright 2005 Alexey Pakhunov.
+#~ Distributed under the Boost Software License, Version 1.0.
+#~ (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+#  Support for Microsoft message compiler tool.
+#  Notes:
+#  - there's just message compiler tool, there's no tool for 
+#    extracting message strings from sources
+#  - This file allows to use Microsoft message compiler
+#    with any toolset. In msvc.jam, there's more specific
+#    message compiling action.
+
+import common ;
+import generators ;
+import feature : feature get-values ;
+import toolset : flags ;
+import type ;
+import rc ;
+
+rule init ( )
+{
+}
+
+type.register MC : mc ;
+
+
+# Command line options
+feature mc-input-encoding : ansi unicode : free ;
+feature mc-output-encoding : unicode ansi : free ;
+feature mc-set-customer-bit : no yes : free ;
+
+flags mc.compile MCFLAGS <mc-input-encoding>ansi : -a ;
+flags mc.compile MCFLAGS <mc-input-encoding>unicode : -u ;
+flags mc.compile MCFLAGS <mc-output-encoding>ansi : -A ;
+flags mc.compile MCFLAGS <mc-output-encoding>unicode : -U ;
+flags mc.compile MCFLAGS <mc-set-customer-bit>no : ;
+flags mc.compile MCFLAGS <mc-set-customer-bit>yes : -c ;
+
+generators.register-standard mc.compile : MC : H RC ;
+
+actions compile
+{
+    mc $(MCFLAGS) -h "$(<[1]:DW)" -r "$(<[2]:DW)" "$(>:W)"
+}
diff --git a/jam-files/boost-build/tools/message.jam b/jam-files/boost-build/tools/message.jam
new file mode 100644
index 00000000..212d8542
--- /dev/null
+++ b/jam-files/boost-build/tools/message.jam
@@ -0,0 +1,55 @@
+# Copyright 2008 Vladimir Prus
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+# Defines main target type 'message', that prints a message when built for the
+# first time.
+
+import project ;
+import "class" : new ;
+import targets ;
+import property-set ;
+
+class message-target-class : basic-target
+{
+    rule __init__ ( name-and-dir : project : * )
+    {
+        basic-target.__init__ $(name-and-dir) : $(project) ;
+        self.3 = $(3) ;
+        self.4 = $(4) ;
+        self.5 = $(5) ;
+        self.6 = $(6) ;
+        self.7 = $(7) ;
+        self.8 = $(8) ;        
+        self.9 = $(9) ;        
+        self.built = ;
+    }
+    
+    rule construct ( name : source-targets * : property-set )
+    {
+        if ! $(self.built)
+        {
+            for i in 3 4 5 6 7 8 9
+            {
+                if $(self.$(i))
+                {
+                    ECHO $(self.$(i)) ;
+                }
+            }
+            self.built = 1 ;
+        }
+        
+        return [ property-set.empty ] ;
+    }
+}
+
+
+rule message ( name : * )
+{
+    local project = [ project.current ] ;
+
+    targets.main-target-alternative
+      [ new message-target-class $(name) : $(project) 
+        : $(2) : $(3) : $(4) : $(5) : $(6) : $(7) ] ;
+}
+IMPORT $(__name__) : message : : message ;
\ No newline at end of file
diff --git a/jam-files/boost-build/tools/message.py b/jam-files/boost-build/tools/message.py
new file mode 100644
index 00000000..cc0b946f
--- /dev/null
+++ b/jam-files/boost-build/tools/message.py
@@ -0,0 +1,46 @@
+# Status: ported.
+# Base revision: 64488.
+#
+# Copyright 2008, 2010 Vladimir Prus
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+# Defines main target type 'message', that prints a message when built for the
+# first time.
+
+import b2.build.targets as targets
+import b2.build.property_set as property_set
+
+from b2.manager import get_manager
+
+class MessageTargetClass(targets.BasicTarget):
+
+    def __init__(self, name, project, *args):
+
+        targets.BasicTarget.__init__(self, name, project, [])
+        self.args = args
+        self.built = False
+
+    def construct(self, name, sources, ps):
+
+        if not self.built:
+            for arg in self.args:
+                if type(arg) == type([]):
+                    arg = " ".join(arg)                
+                print arg
+            self.built = True
+
+        return (property_set.empty(), [])
+
+def message(name, *args):
+
+    if type(name) == type([]):
+        name = name[0]
+
+    t = get_manager().targets()
+    
+    project = get_manager().projects().current()
+        
+    return t.main_target_alternative(MessageTargetClass(*((name, project) + args)))
+
+get_manager().projects().add_rule("message", message)
diff --git a/jam-files/boost-build/tools/midl.jam b/jam-files/boost-build/tools/midl.jam
new file mode 100644
index 00000000..0aa5dda3
--- /dev/null
+++ b/jam-files/boost-build/tools/midl.jam
@@ -0,0 +1,142 @@
+# Copyright (c) 2005 Alexey Pakhunov.
+#
+# Use, modification and distribution is subject to the Boost Software
+# License Version 1.0. (See accompanying file LICENSE_1_0.txt or
+# http://www.boost.org/LICENSE_1_0.txt)
+
+# Microsoft Interface Definition Language (MIDL) related routines
+
+import common ;
+import generators ;
+import feature : feature get-values ;
+import os ;
+import scanner ;
+import toolset : flags ;
+import type ;
+
+rule init ( )
+{
+}
+
+type.register IDL : idl ;
+
+# A type library (.tlb) is generated by MIDL compiler and can be included
+# to resources of an application (.rc). In order to be found by a resource 
+# compiler its target type should be derived from 'H' - otherwise
+# the property '<implicit-dependency>' will be ignored.
+type.register MSTYPELIB : tlb : H ;
+
+
+# Register scanner for MIDL files
+class midl-scanner : scanner 
+{
+    import path property-set regex scanner type virtual-target ;
+    
+    rule __init__ ( includes * )
+    {
+        scanner.__init__ ;
+    
+        self.includes = $(includes) ;
+
+        # List of quoted strings 
+        self.re-strings = "[ \t]*\"([^\"]*)\"([ \t]*,[ \t]*\"([^\"]*)\")*[ \t]*" ;
+
+        # 'import' and 'importlib' directives 
+        self.re-import    = "import"$(self.re-strings)"[ \t]*;" ;
+        self.re-importlib = "importlib[ \t]*[(]"$(self.re-strings)"[)][ \t]*;" ;
+
+        # C preprocessor 'include' directive
+        self.re-include-angle  = "#[ \t]*include[ \t]*<(.*)>" ;
+        self.re-include-quoted = "#[ \t]*include[ \t]*\"(.*)\"" ;
+    }    
+
+    rule pattern ( )
+    {
+        # Match '#include', 'import' and 'importlib' directives
+        return "((#[ \t]*include|import(lib)?).+(<(.*)>|\"(.*)\").+)" ;
+    }
+
+    rule process ( target : matches * : binding )
+    {
+        local included-angle  = [ regex.transform $(matches) : $(self.re-include-angle)  : 1 ] ;
+        local included-quoted = [ regex.transform $(matches) : $(self.re-include-quoted) : 1 ] ;
+        local imported        = [ regex.transform $(matches) : $(self.re-import)         : 1 3 ] ;
+        local imported_tlbs   = [ regex.transform $(matches) : $(self.re-importlib)      : 1 3 ] ;
+
+        # CONSIDER: the new scoping rule seem to defeat "on target" variables.
+        local g = [ on $(target) return $(HDRGRIST) ] ;  
+        local b = [ NORMALIZE_PATH $(binding:D) ] ;
+
+        # Attach binding of including file to included targets.
+        # When target is directly created from virtual target
+        # this extra information is unnecessary. But in other
+        # cases, it allows to distinguish between two headers of the 
+        # same name included from different places.      
+        local g2 = $(g)"#"$(b) ;
+
+        included-angle = $(included-angle:G=$(g)) ;
+        included-quoted = $(included-quoted:G=$(g2)) ;
+        imported = $(imported:G=$(g2)) ;
+        imported_tlbs = $(imported_tlbs:G=$(g2)) ;
+
+        local all = $(included-angle) $(included-quoted) $(imported) ;
+
+        INCLUDES $(target) : $(all) ;
+        DEPENDS $(target) : $(imported_tlbs) ;
+        NOCARE $(all) $(imported_tlbs) ;
+        SEARCH on $(included-angle)  = $(self.includes:G=) ;
+        SEARCH on $(included-quoted) = $(b) $(self.includes:G=) ;
+        SEARCH on $(imported)        = $(b) $(self.includes:G=) ;
+        SEARCH on $(imported_tlbs)   = $(b) $(self.includes:G=) ;
+        
+        scanner.propagate 
+            [ type.get-scanner CPP : [ property-set.create $(self.includes) ] ] : 
+            $(included-angle) $(included-quoted) : $(target) ;
+
+        scanner.propagate $(__name__) : $(imported) : $(target) ;
+    }        
+}
+
+scanner.register midl-scanner : include ;
+type.set-scanner IDL : midl-scanner ;
+
+
+# Command line options
+feature midl-stubless-proxy : yes no : propagated ;
+feature midl-robust : yes no : propagated ;
+
+flags midl.compile.idl MIDLFLAGS <midl-stubless-proxy>yes : /Oicf ;
+flags midl.compile.idl MIDLFLAGS <midl-stubless-proxy>no : /Oic ;
+flags midl.compile.idl MIDLFLAGS <midl-robust>yes : /robust ;
+flags midl.compile.idl MIDLFLAGS <midl-robust>no : /no_robust ;
+
+# Architecture-specific options
+architecture-x86 = <architecture> <architecture>x86 ;
+address-model-32 = <address-model> <address-model>32 ;
+address-model-64 = <address-model> <address-model>64 ;
+
+flags midl.compile.idl MIDLFLAGS $(architecture-x86)/$(address-model-32) : /win32 ;
+flags midl.compile.idl MIDLFLAGS $(architecture-x86)/<address-model>64 : /x64 ;
+flags midl.compile.idl MIDLFLAGS <architecture>ia64/$(address-model-64) : /ia64 ;
+
+
+flags midl.compile.idl DEFINES <define> ;
+flags midl.compile.idl UNDEFS <undef> ;
+flags midl.compile.idl INCLUDES <include> ;
+
+
+generators.register-c-compiler midl.compile.idl : IDL : MSTYPELIB H C(%_i) C(%_proxy) C(%_dlldata) ;
+
+
+# MIDL does not always generate '%_proxy.c' and '%_dlldata.c'. This behavior 
+# depends on contents of the source IDL file. Calling TOUCH_FILE below ensures
+# that both files will be created so bjam will not try to recreate them 
+# constantly.
+TOUCH_FILE = [ common.file-touch-command ] ;
+
+actions compile.idl
+{
+    midl /nologo @"@($(<[1]:W).rsp:E=$(nl)"$(>:W)" $(nl)-D$(DEFINES) $(nl)"-I$(INCLUDES)" $(nl)-U$(UNDEFS) $(nl)$(MIDLFLAGS) $(nl)/tlb "$(<[1]:W)" $(nl)/h "$(<[2]:W)" $(nl)/iid "$(<[3]:W)" $(nl)/proxy "$(<[4]:W)" $(nl)/dlldata "$(<[5]:W)")"
+    $(TOUCH_FILE) "$(<[4]:W)"  
+    $(TOUCH_FILE) "$(<[5]:W)"  
+}
diff --git a/jam-files/boost-build/tools/mipspro.jam b/jam-files/boost-build/tools/mipspro.jam
new file mode 100644
index 00000000..417eaefc
--- /dev/null
+++ b/jam-files/boost-build/tools/mipspro.jam
@@ -0,0 +1,145 @@
+#  Copyright Noel Belcourt 2007.
+#  Distributed under the Boost Software License, Version 1.0.
+#    (See accompanying file LICENSE_1_0.txt or copy at
+#          http://www.boost.org/LICENSE_1_0.txt)
+
+import property ;
+import generators ;
+import os ;
+import toolset : flags ;
+import feature ;
+import fortran ;
+import type ;
+import common ;
+
+feature.extend toolset : mipspro ;
+toolset.inherit mipspro : unix ;
+generators.override mipspro.prebuilt : builtin.lib-generator ;
+generators.override mipspro.searched-lib-generator : searched-lib-generator ;
+
+#  Documentation and toolchain description located
+#  http://www.sgi.com/products/software/irix/tools/
+
+rule init ( version ? : command * : options * ) 
+{
+  local condition = [ 
+    common.check-init-parameters mipspro : version $(version) ] ;
+
+  command = [ common.get-invocation-command mipspro : CC : $(command) ] ;
+
+  common.handle-options mipspro : $(condition) : $(command) : $(options) ;
+    
+  command_c = $(command_c[1--2]) $(command[-1]:B=cc) ;
+
+  toolset.flags mipspro CONFIG_C_COMMAND $(condition) : $(command_c) ;
+
+  # fortran support
+  local command = [ 
+    common.get-invocation-command mipspro : f77 : $(command) : $(install_dir) ] ;
+
+  command_f = $(command_f[1--2]) $(command[-1]:B=f77) ;
+  toolset.flags mipspro CONFIG_F_COMMAND $(condition) : $(command_f) ;
+
+  # set link flags
+  flags mipspro.link FINDLIBS-ST : [ 
+    feature.get-values <find-static-library> : $(options) ] : unchecked ;
+
+  flags mipspro.link FINDLIBS-SA : [ 
+    feature.get-values <find-shared-library> : $(options) ] : unchecked ;
+}
+
+# Declare generators
+generators.register-c-compiler mipspro.compile.c : C : OBJ : <toolset>mipspro ;
+generators.register-c-compiler mipspro.compile.c++ : CPP : OBJ : <toolset>mipspro ;
+generators.register-fortran-compiler mipspro.compile.fortran : FORTRAN : OBJ : <toolset>mipspro ;
+
+cpu-arch-32 =
+  <architecture>/<address-model>
+  <architecture>/<address-model>32 ;
+
+cpu-arch-64 =
+  <architecture>/<address-model>64 ;
+
+flags mipspro.compile OPTIONS $(cpu-arch-32) : -n32 ;
+flags mipspro.compile OPTIONS $(cpu-arch-64) : -64 ;
+
+# Declare flags and actions for compilation
+flags mipspro.compile OPTIONS <debug-symbols>on : -g ; 
+# flags mipspro.compile OPTIONS <profiling>on : -xprofile=tcov ;
+flags mipspro.compile OPTIONS <warnings>off : -w ;
+flags mipspro.compile OPTIONS <warnings>on : -ansiW -diag_suppress 1429 ; # suppress long long is nonstandard warning
+flags mipspro.compile OPTIONS <warnings>all : -fullwarn ;
+flags mipspro.compile OPTIONS <optimization>speed : -Ofast ;
+flags mipspro.compile OPTIONS <optimization>space : -O2 ;
+flags mipspro.compile OPTIONS <cflags> : -LANG:std ;
+flags mipspro.compile.c++ OPTIONS <inlining>off : -INLINE:none ;
+flags mipspro.compile.c++ OPTIONS <cxxflags> ;
+flags mipspro.compile DEFINES <define> ;
+flags mipspro.compile INCLUDES <include> ;
+
+
+flags mipspro.compile.fortran OPTIONS <fflags> ;
+
+actions compile.c
+{
+    "$(CONFIG_C_COMMAND)" $(OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -c -o "$(<)" "$(>)"
+}
+
+actions compile.c++
+{
+    "$(CONFIG_COMMAND)" -FE:template_in_elf_section -ptused $(OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -c -o "$(<)" "$(>)"
+}
+
+actions compile.fortran
+{
+    "$(CONFIG_F_COMMAND)" $(OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -c -o "$(<)" "$(>)"
+}
+
+# Declare flags and actions for linking
+flags mipspro.link OPTIONS <debug-symbols>on : -g ;
+# Strip the binary when no debugging is needed
+# flags mipspro.link OPTIONS <debug-symbols>off : -s ;
+# flags mipspro.link OPTIONS <profiling>on : -xprofile=tcov ;
+# flags mipspro.link OPTIONS <threading>multi : -mt ;
+
+flags mipspro.link OPTIONS $(cpu-arch-32) : -n32 ;
+flags mipspro.link OPTIONS $(cpu-arch-64) : -64 ;
+
+flags mipspro.link OPTIONS <optimization>speed : -Ofast ;
+flags mipspro.link OPTIONS <optimization>space : -O2 ;
+flags mipspro.link OPTIONS <linkflags> ;
+flags mipspro.link LINKPATH <library-path> ;
+flags mipspro.link FINDLIBS-ST <find-static-library> ;
+flags mipspro.link FINDLIBS-SA <find-shared-library> ;
+flags mipspro.link FINDLIBS-SA <threading>multi : pthread ;
+flags mipspro.link LIBRARIES <library-file> ;
+flags mipspro.link LINK-RUNTIME <runtime-link>static : static ;
+flags mipspro.link LINK-RUNTIME <runtime-link>shared : dynamic ;
+flags mipspro.link RPATH <dll-path> ;
+
+rule link ( targets * : sources * : properties * )
+{
+    SPACE on $(targets) = " " ;
+}
+
+actions link bind LIBRARIES
+{
+    "$(CONFIG_COMMAND)" -FE:template_in_elf_section -ptused $(OPTIONS) -L"$(LINKPATH)" -R"$(RPATH)" -o "$(<)" "$(>)" "$(LIBRARIES)" -Bdynamic -l$(FINDLIBS-SA) -Bstatic -l$(FINDLIBS-ST) -B$(LINK-RUNTIME) -lm
+}
+
+# Slight mods for dlls
+rule link.dll ( targets * : sources * : properties * )
+{
+    SPACE on $(targets) = " " ;
+}
+
+actions link.dll bind LIBRARIES
+{
+    "$(CONFIG_COMMAND)" $(OPTIONS) -L"$(LINKPATH)" -R"$(RPATH)" -o "$(<)" "$(>)" "$(LIBRARIES)" -Bdynamic -l$(FINDLIBS-SA) -Bstatic -l$(FINDLIBS-ST) -B$(LINK-RUNTIME)
+}
+
+# Declare action for creating static libraries
+actions piecemeal archive
+{
+    ar -cr "$(<)" "$(>)"
+}
diff --git a/jam-files/boost-build/tools/mpi.jam b/jam-files/boost-build/tools/mpi.jam
new file mode 100644
index 00000000..0fe490be
--- /dev/null
+++ b/jam-files/boost-build/tools/mpi.jam
@@ -0,0 +1,583 @@
+# Support for the Message Passing Interface (MPI)
+#
+# (C) Copyright 2005, 2006 Trustees of Indiana University
+# (C) Copyright 2005 Douglas Gregor
+#
+# Distributed under the Boost Software License, Version 1.0. (See accompanying 
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt.)
+#
+# Authors: Douglas Gregor
+#          Andrew Lumsdaine
+#
+# ==== MPI Configuration ====
+# 
+# For many users, MPI support can be enabled simply by adding the following 
+# line to your user-config.jam file:
+#
+#   using mpi ;
+#
+# This should auto-detect MPI settings based on the MPI wrapper compiler in 
+# your path, e.g., "mpic++". If the wrapper compiler is not in your path, or
+# has a different name, you can pass the name of the wrapper compiler as the
+# first argument to the mpi module:
+#
+#   using mpi : /opt/mpich2-1.0.4/bin/mpiCC ;
+#
+# If your MPI implementation does not have a wrapper compiler, or the MPI 
+# auto-detection code does not work with your MPI's wrapper compiler,
+# you can pass MPI-related options explicitly via the second parameter to the 
+# mpi module:
+#
+#    using mpi : : <find-shared-library>lammpio <find-shared-library>lammpi++
+#                  <find-shared-library>mpi <find-shared-library>lam 
+#                  <find-shared-library>dl ;
+#
+# To see the results of MPI auto-detection, pass "--debug-configuration" on
+# the bjam command line.
+#
+# The (optional) fourth argument configures Boost.MPI for running
+# regression tests. These parameters specify the executable used to
+# launch jobs (default: "mpirun") followed by any necessary arguments
+# to this to run tests and tell the program to expect the number of
+# processors to follow (default: "-np").  With the default parameters,
+# for instance, the test harness will execute, e.g.,
+#  
+#    mpirun -np 4 all_gather_test
+#
+# ==== Linking Against the MPI Libraries ===
+#
+# To link against the MPI libraries, import the "mpi" module and add the 
+# following requirement to your target:
+# 
+#   <library>/mpi//mpi 
+#
+# Since MPI support is not always available, you should check 
+# "mpi.configured" before trying to link against the MPI libraries.
+
+import "class" : new ;
+import common ;
+import feature : feature ;
+import generators ;
+import os ;
+import project ;
+import property ;
+import testing ;
+import toolset ;
+import type ;
+import path ;
+
+# Make this module a project
+project.initialize $(__name__) ;
+project mpi ;
+
+if [ MATCH (--debug-configuration) : [ modules.peek : ARGV ] ]
+{
+  .debug-configuration = true ;
+}
+
+# Assuming the first part of the command line is the given prefix
+# followed by some non-empty value, remove the first argument. Returns
+# either nothing (if there was no prefix or no value) or a pair
+#
+#   <name>value rest-of-cmdline
+#
+# This is a subroutine of cmdline_to_features
+rule add_feature ( prefix name cmdline ) 
+{
+    local match = [ MATCH "^$(prefix)([^\" ]+|\"[^\"]+\") *(.*)$" : $(cmdline) ] ;
+
+    # If there was no value associated with the prefix, abort
+    if ! $(match) {
+      return ;
+    }
+
+    local value = $(match[1]) ;
+
+    if [ MATCH " +" : $(value) ] {
+      value = "\"$(value)\"" ;
+    }
+
+    return "<$(name)>$(value)" $(match[2]) ;
+}
+
+# Strip any end-of-line characters off the given string and return the
+# result.
+rule strip-eol ( string )
+{
+  local match = [ MATCH "^(([A-Za-z0-9~`\.!@#$%^&*()_+={};:'\",.<>/?\\| -]|[|])*).*$" : $(string) ] ;
+
+  if $(match)
+  {
+    return $(match[1]) ;
+  }
+  else
+  {
+    return $(string) ;
+  }
+}
+
+# Split a command-line into a set of features. Certain kinds of
+# compiler flags are recognized (e.g., -I, -D, -L, -l) and replaced
+# with their Boost.Build equivalents (e.g., <include>, <define>,
+# <library-path>, <find-library>). All other arguments are introduced
+# using the features in the unknown-features parameter, because we
+# don't know how to deal with them. For instance, if your compile and
+# correct. The incoming command line should be a string starting with
+# an executable (e.g., g++ -I/include/path") and may contain any
+# number of command-line arguments thereafter. The result is a list of
+# features corresponding to the given command line, ignoring the
+# executable.
+rule cmdline_to_features ( cmdline : unknown-features ? )
+{
+    local executable ;
+    local features ;
+    local otherflags ;
+    local result ;
+
+    unknown-features ?= <cxxflags> <linkflags> ;
+
+    # Pull the executable out of the command line. At this point, the
+    # executable is just thrown away.
+    local match = [ MATCH "^([^\" ]+|\"[^\"]+\") *(.*)$" : $(cmdline) ] ;
+    executable = $(match[1]) ;
+    cmdline = $(match[2]) ;
+
+    # List the prefix/feature pairs that we will be able to transform. 
+    # Every kind of parameter not mentioned here will be placed in both
+    # cxxflags and linkflags, because we don't know where they should go.
+    local feature_kinds-D = "define" ;
+    local feature_kinds-I = "include" ;
+    local feature_kinds-L = "library-path" ;
+    local feature_kinds-l = "find-shared-library" ;
+
+    while $(cmdline) {
+
+        # Check for one of the feature prefixes we know about. If we
+        # find one (and the associated value is nonempty), convert it
+        # into a feature.
+        local match = [ MATCH "^(-.)(.*)" : $(cmdline) ] ;
+        local matched ;
+        if $(match) && $(match[2]) {
+           local prefix = $(match[1]) ;
+           if $(feature_kinds$(prefix)) {
+               local name = $(feature_kinds$(prefix)) ;
+               local add = [ add_feature $(prefix) $(name) $(cmdline) ] ;
+
+               if $(add) {
+
+                  if $(add[1]) = <find-shared-library>pthread
+                  {
+                      # Uhm. It's not really nice that this MPI implementation
+                      # uses -lpthread as opposed to -pthread. We do want to
+                      # set <threading>multi, instead of -lpthread.
+                      result += "<threading>multi" ;
+                      MPI_EXTRA_REQUIREMENTS += "<threading>multi" ;                      
+                  }
+                  else
+                  {                      
+                      result += $(add[1]) ;                  
+                  }
+                                     
+                  cmdline = $(add[2]) ;
+                  matched = yes ;
+               }
+           }
+        }
+
+        # If we haven't matched a feature prefix, just grab the command-line
+        # argument itself. If we can map this argument to a feature
+        # (e.g., -pthread -> <threading>multi), then do so; otherwise,
+        # and add it to the list of "other" flags that we don't
+        # understand.
+        if ! $(matched) {
+           match = [ MATCH "^([^\" ]+|\"[^\"]+\") *(.*)$" : $(cmdline) ] ;
+           local value = $(match[1]) ;
+           cmdline = $(match[2]) ;
+
+           # Check for multithreading support
+           if $(value) = "-pthread" || $(value) = "-pthreads"
+           {
+             result += "<threading>multi" ;
+
+             # DPG: This is a hack intended to work around a BBv2 bug where
+             # requirements propagated from libraries are not checked for
+             # conflicts when BBv2 determines which "common" properties to
+             # apply to a target. In our case, the <threading>single property
+             # gets propagated from the common properties to Boost.MPI
+             # targets, even though <threading>multi is in the usage 
+             # requirements of <library>/mpi//mpi.
+             MPI_EXTRA_REQUIREMENTS += "<threading>multi" ;
+           }
+           else if [ MATCH "(.*[a-zA-Z0-9<>?-].*)" : $(value) ] {
+              otherflags += $(value) ;
+           }
+        }
+    }
+
+    # If there are other flags that we don't understand, add them to the
+    # result as both <cxxflags> and <linkflags>
+    if $(otherflags) {
+       for unknown in $(unknown-features)
+       {
+         result += "$(unknown)$(otherflags:J= )" ;
+       }
+    }
+
+    return $(result) ;
+}
+
+# Determine if it is safe to execute the given shell command by trying
+# to execute it and determining whether the exit code is zero or
+# not. Returns true for an exit code of zero, false otherwise.
+local rule safe-shell-command ( cmdline )
+{
+  local result = [ SHELL "$(cmdline) > /dev/null 2>/dev/null; if [ "$?" -eq "0" ]; then echo SSCOK; fi" ] ;
+  return [ MATCH ".*(SSCOK).*" : $(result) ] ;
+}
+
+# Initialize the MPI module.  
+rule init ( mpicxx ? : options * : mpirun-with-options * )
+{
+  if ! $(options) && $(.debug-configuration)
+  {
+    ECHO "===============MPI Auto-configuration===============" ;
+  }
+    
+  if ! $(mpicxx) && [ os.on-windows ]
+  {  
+    # Try to auto-configure to the Microsoft Compute Cluster Pack
+    local cluster_pack_path_native = "C:\\Program Files\\Microsoft Compute Cluster Pack" ;
+    local cluster_pack_path = [ path.make $(cluster_pack_path_native) ] ;
+    if [ GLOB $(cluster_pack_path_native)\\Include : mpi.h ]
+    {
+      if $(.debug-configuration)
+      {
+        ECHO "Found Microsoft Compute Cluster Pack: $(cluster_pack_path_native)" ;
+      }
+      
+      # Pick up either the 32-bit or 64-bit library, depending on which address
+      # model the user has selected. Default to 32-bit.
+      options = <include>$(cluster_pack_path)/Include 
+                <address-model>64:<library-path>$(cluster_pack_path)/Lib/amd64
+                <library-path>$(cluster_pack_path)/Lib/i386
+                <find-static-library>msmpi
+                <toolset>msvc:<define>_SECURE_SCL=0
+              ;
+              
+      # Setup the "mpirun" equivalent (mpiexec)
+      .mpirun = "\"$(cluster_pack_path_native)\\Bin\\mpiexec.exe"\" ;
+      .mpirun_flags = -n ;
+    }
+    else if $(.debug-configuration)
+    {
+      ECHO "Did not find Microsoft Compute Cluster Pack in $(cluster_pack_path_native)." ;
+    }
+  } 
+   
+  if ! $(options)
+  { 
+    # Try to auto-detect options based on the wrapper compiler
+    local command = [ common.get-invocation-command mpi : mpic++ : $(mpicxx) ] ;
+
+    if ! $(mpicxx) && ! $(command) 
+    {
+      # Try "mpiCC", which is used by MPICH 
+      command = [ common.get-invocation-command mpi : mpiCC ] ;
+    }
+
+    if ! $(mpicxx) && ! $(command) 
+    {
+      # Try "mpicxx", which is used by OpenMPI and MPICH2
+      command = [ common.get-invocation-command mpi : mpicxx ] ;
+    }
+
+    local result ;
+    local compile_flags ;
+    local link_flags ;
+
+    if ! $(command)
+    { 
+      # Do nothing: we'll complain later
+    }
+    # OpenMPI and newer versions of LAM-MPI have -showme:compile and 
+    # -showme:link.
+    else if [ safe-shell-command "$(command) -showme:compile" ] &&
+              [ safe-shell-command "$(command) -showme:link" ]
+    {
+      if $(.debug-configuration)
+      {
+        ECHO "Found recent LAM-MPI or Open MPI wrapper compiler: $(command)" ;
+      }
+
+      compile_flags = [ SHELL "$(command) -showme:compile" ] ;
+      link_flags = [ SHELL "$(command) -showme:link" ] ;
+   
+      # Prepend COMPILER as the executable name, to match the format of 
+      # other compilation commands.
+      compile_flags = "COMPILER $(compile_flags)" ;
+      link_flags = "COMPILER $(link_flags)" ;
+    }
+    # Look for LAM-MPI's -showme
+    else if [ safe-shell-command "$(command) -showme" ]
+    {
+      if $(.debug-configuration)
+      {
+        ECHO "Found older LAM-MPI wrapper compiler: $(command)" ;
+      }
+
+      result = [ SHELL "$(command) -showme" ] ;
+    }
+    # Look for MPICH
+    else if [ safe-shell-command "$(command) -show" ]
+    {
+      if $(.debug-configuration)
+      {
+        ECHO "Found MPICH wrapper compiler: $(command)" ;
+      }
+      compile_flags = [ SHELL "$(command) -compile_info" ] ;
+      link_flags = [ SHELL "$(command) -link_info" ] ;
+    }
+    # Sun HPC and Ibm POE
+    else if [ SHELL "$(command) -v 2>/dev/null" ]
+    {
+      compile_flags = [ SHELL "$(command) -c -v -xtarget=native64 2>/dev/null" ] ;
+
+      local back = [ MATCH "--------------------(.*)" : $(compile_flags) ] ;
+      if $(back)
+      {
+        # Sun HPC
+        if $(.debug-configuration)
+        {
+          ECHO "Found Sun MPI wrapper compiler: $(command)" ;
+        }
+
+        compile_flags = [ MATCH "(.*)--------------------" : $(back) ] ;
+        compile_flags = [ MATCH "(.*)-v" :  $(compile_flags) ] ;
+        link_flags = [ SHELL "$(command) -v -xtarget=native64 2>/dev/null" ] ;
+        link_flags = [ MATCH "--------------------(.*)" : $(link_flags) ] ;
+        link_flags = [ MATCH "(.*)--------------------" : $(link_flags) ] ;
+
+        # strip out -v from compile options
+        local front = [ MATCH "(.*)-v" :  $(link_flags) ] ;
+        local back = [ MATCH "-v(.*)" :  $(link_flags) ] ;
+        link_flags = "$(front) $(back)" ;
+        front = [ MATCH "(.*)-xtarget=native64" :  $(link_flags) ] ;
+        back = [ MATCH "-xtarget=native64(.*)" :  $(link_flags) ] ;
+        link_flags = "$(front) $(back)" ;
+      }
+      else
+      {
+        # Ibm POE
+        if $(.debug-configuration)
+        {
+          ECHO "Found IBM MPI wrapper compiler: $(command)" ;
+        }
+
+        # 
+        compile_flags = [ SHELL "$(command) -c -v 2>/dev/null" ] ;
+        compile_flags = [ MATCH "(.*)exec: export.*" : $(compile_flags) ] ;
+        local front = [ MATCH "(.*)-v" :  $(compile_flags) ] ;
+        local back = [ MATCH "-v(.*)" :  $(compile_flags) ] ;
+        compile_flags = "$(front) $(back)" ;
+        front = [ MATCH "(.*)-c" :  $(compile_flags) ] ;
+        back = [ MATCH "-c(.*)" :  $(compile_flags) ] ;
+        compile_flags = "$(front) $(back)" ;
+        link_flags = $(compile_flags) ;
+
+        # get location of mpif.h from mpxlf
+        local f_flags = [ SHELL "mpxlf -v 2>/dev/null" ] ;
+        f_flags = [ MATCH "(.*)exec: export.*" : $(f_flags) ] ;
+        front = [ MATCH "(.*)-v" :  $(f_flags) ] ;
+        back = [ MATCH "-v(.*)" :  $(f_flags) ] ;
+        f_flags = "$(front) $(back)" ;
+        f_flags = [ MATCH "xlf_r(.*)" : $(f_flags) ] ;
+        f_flags = [ MATCH "-F:mpxlf_r(.*)" : $(f_flags) ] ;
+        compile_flags = [ strip-eol $(compile_flags) ] ;
+        compile_flags = "$(compile_flags) $(f_flags)" ;
+      }
+    }
+
+    if $(result) || $(compile_flags) && $(link_flags)
+    {
+      if $(result)
+      {
+         result = [ strip-eol $(result) ] ;
+         options = [ cmdline_to_features $(result) ] ;
+      }
+      else 
+      { 
+         compile_flags = [ strip-eol $(compile_flags) ] ;
+         link_flags = [ strip-eol $(link_flags) ] ;
+
+         # Separately process compilation and link features, then combine
+         # them at the end.
+         local compile_features = [ cmdline_to_features $(compile_flags) 
+                                                        : "<cxxflags>" ] ; 
+         local link_features = [ cmdline_to_features $(link_flags) 
+                                                     : "<linkflags>" ] ; 
+         options = $(compile_features) $(link_features) ;
+      }
+
+      # If requested, display MPI configuration information.
+      if $(.debug-configuration)
+      {
+        if $(result)
+        {
+          ECHO "  Wrapper compiler command line: $(result)" ;
+        }
+        else
+        {
+	  local match = [ MATCH "^([^\" ]+|\"[^\"]+\") *(.*)$" 
+                                : $(compile_flags) ] ;
+          ECHO "MPI compilation flags: $(match[2])" ;
+	  local match = [ MATCH "^([^\" ]+|\"[^\"]+\") *(.*)$" 
+                                : $(link_flags) ] ;
+          ECHO "MPI link flags: $(match[2])" ;
+        }
+      }
+    } 
+    else 
+    {
+      if $(command)
+      {
+        ECHO "MPI auto-detection failed: unknown wrapper compiler $(command)" ;
+        ECHO "Please report this error to the Boost mailing list: http://www.boost.org" ;
+      }     
+      else if $(mpicxx)
+      {
+        ECHO "MPI auto-detection failed: unable to find wrapper compiler $(mpicxx)" ;
+      } 
+      else
+      {
+        ECHO "MPI auto-detection failed: unable to find wrapper compiler `mpic++' or `mpiCC'" ;
+      }
+      ECHO "You will need to manually configure MPI support." ;
+    }
+ 
+  }
+
+  # Find mpirun (or its equivalent) and its flags
+  if ! $(.mpirun)
+  {
+    .mpirun = 
+        [ common.get-invocation-command mpi : mpirun : $(mpirun-with-options[1]) ] ;
+    .mpirun_flags = $(mpirun-with-options[2-]) ;
+    .mpirun_flags ?= -np ;
+  }
+  
+  if $(.debug-configuration)
+  {
+    if $(options)
+    {
+      echo "MPI build features: " ;
+      ECHO $(options) ;
+    }
+
+    if $(.mpirun)
+    {
+      echo "MPI launcher: $(.mpirun) $(.mpirun_flags)" ;
+    }
+        
+    ECHO "====================================================" ;
+  }
+
+  if $(options)  
+  {
+    .configured = true ;
+
+    # Set up the "mpi" alias 
+    alias mpi : : : : $(options) ;
+  }
+}
+
+# States whether MPI has bee configured
+rule configured ( )
+{
+  return $(.configured) ;
+}
+
+# Returs the "extra" requirements needed to build MPI. These requirements are
+# part of the /mpi//mpi library target, but they need to be added to anything
+# that uses MPI directly to work around bugs in BBv2's propagation of
+# requirements.
+rule extra-requirements ( )
+{
+  return $(MPI_EXTRA_REQUIREMENTS) ;
+}
+
+# Support for testing; borrowed from Python
+type.register RUN_MPI_OUTPUT ;
+type.register RUN_MPI : : TEST ;
+
+class mpi-test-generator : generator
+{
+    import property-set ;
+
+    rule __init__ ( * : * )
+    {
+        generator.__init__ $(1) : $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ;
+        self.composing = true ;
+    }
+
+    rule run ( project name ? : property-set : sources * : multiple ? )
+    {  
+      # Generate an executable from the sources. This is the executable we will run.
+      local executable = 
+        [ generators.construct $(project) $(name) : EXE : $(property-set) : $(sources) ] ;
+
+      result = 
+        [ construct-result $(executable[2-]) : $(project) $(name)-run : $(property-set) ] ;
+    }
+}
+
+# Use mpi-test-generator to generate MPI tests from sources
+generators.register 
+  [ new mpi-test-generator mpi.capture-output : : RUN_MPI_OUTPUT ] ;
+
+generators.register-standard testing.expect-success 
+  : RUN_MPI_OUTPUT : RUN_MPI ;
+
+# The number of processes to spawn when executing an MPI test.
+feature mpi:processes : : free incidental ;
+
+# The flag settings on testing.capture-output do not
+# apply to mpi.capture output at the moment.
+# Redo this explicitly.
+toolset.flags mpi.capture-output ARGS <testing.arg> ;
+rule capture-output ( target : sources * : properties * )
+{
+    # Use the standard capture-output rule to run the tests
+    testing.capture-output $(target) : $(sources[1]) : $(properties) ;
+
+    # Determine the number of processes we should run on.
+    local num_processes = [ property.select <mpi:processes> : $(properties) ] ;
+    num_processes = $(num_processes:G=) ;
+
+    # serialize the MPI tests to avoid overloading systems
+    JAM_SEMAPHORE on $(target) = <s>mpi-run-semaphore ;
+
+    # We launch MPI processes using the "mpirun" equivalent specified by the user.
+    LAUNCHER on $(target) =  
+      [ on $(target) return $(.mpirun) $(.mpirun_flags) $(num_processes) ] ;
+}
+
+# Creates a set of test cases to be run through the MPI launcher. The name, sources, 
+# and requirements are the same as for any other test generator. However, schedule is 
+# a list of numbers, which indicates how many processes each test run will use. For 
+# example, passing 1 2 7 will run the test with 1 process, then 2 processes, then 7
+# 7 processes. The name provided is just the base name: the actual tests will be 
+# the name followed by a hypen, then the number of processes. 
+rule mpi-test ( name : sources * : requirements * : schedule * )
+{        
+    sources ?= $(name).cpp ;
+    schedule ?= 1 2 3 4 7 8 13 17 ;
+
+    local result ;
+    for processes in $(schedule)
+    {  
+      result += [ testing.make-test 
+        run-mpi : $(sources) /boost/mpi//boost_mpi
+          : $(requirements) <toolset>msvc:<link>static <mpi:processes>$(processes) : $(name)-$(processes) ] ;
+    }
+    return $(result) ;
+}
diff --git a/jam-files/boost-build/tools/msvc-config.jam b/jam-files/boost-build/tools/msvc-config.jam
new file mode 100644
index 00000000..6c71e3b0
--- /dev/null
+++ b/jam-files/boost-build/tools/msvc-config.jam
@@ -0,0 +1,12 @@
+#~ Copyright 2005 Rene Rivera.
+#~ Distributed under the Boost Software License, Version 1.0.
+#~ (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+# Automatic configuration for VisualStudio toolset. To use, just import this module.
+
+import toolset : using ;
+
+ECHO "warning: msvc-config.jam is deprecated. Use 'using msvc : all ;' instead." ;
+
+using msvc : all ;
+
diff --git a/jam-files/boost-build/tools/msvc.jam b/jam-files/boost-build/tools/msvc.jam
new file mode 100644
index 00000000..e33a66d2
--- /dev/null
+++ b/jam-files/boost-build/tools/msvc.jam
@@ -0,0 +1,1392 @@
+# Copyright (c) 2003 David Abrahams.
+# Copyright (c) 2005 Vladimir Prus.
+# Copyright (c) 2005 Alexey Pakhunov.
+# Copyright (c) 2006 Bojan Resnik.
+# Copyright (c) 2006 Ilya Sokolov.
+# Copyright (c) 2007 Rene Rivera
+# Copyright (c) 2008 Jurko Gospodnetic
+#
+# Use, modification and distribution is subject to the Boost Software
+# License Version 1.0. (See accompanying file LICENSE_1_0.txt or
+# http://www.boost.org/LICENSE_1_0.txt)
+
+################################################################################
+#
+# MSVC Boost Build toolset module.
+# --------------------------------
+#
+# All toolset versions need to have their location either auto-detected or
+# explicitly specified except for the special 'default' version that expects the
+# environment to find the needed tools or report an error.
+#
+################################################################################
+
+import "class" : new ;
+import common ;
+import errors ;
+import feature ;
+import generators ;
+import mc ;
+import midl ;
+import os ;
+import path ;
+import pch ;
+import property ;
+import rc ;
+import toolset ;
+import type ;
+
+
+type.register MANIFEST : manifest ;
+feature.feature embed-manifest : on off : incidental propagated ;
+
+type.register PDB : pdb ;
+
+################################################################################
+#
+# Public rules.
+#
+################################################################################
+
+# Initialize a specific toolset version configuration. As the result, path to
+# compiler and, possible, program names are set up, and will be used when that
+# version of compiler is requested. For example, you might have:
+#
+#    using msvc : 6.5 : cl.exe ;
+#    using msvc : 7.0 : Y:/foo/bar/cl.exe ;
+#
+# The version parameter may be ommited:
+#
+#    using msvc : : Z:/foo/bar/cl.exe ;
+#
+# The following keywords have special meanings when specified as versions:
+#   - all     - all detected but not yet used versions will be marked as used
+#               with their default options.
+#   - default - this is an equivalent to an empty version.
+#
+# Depending on a supplied version, detected configurations and presence 'cl.exe'
+# in the path different results may be achieved. The following table describes
+# the possible scenarios:
+#
+#                                      Nothing            "x.y"
+# Passed   Nothing       "x.y"         detected,          detected,
+# version  detected      detected      cl.exe in path     cl.exe in path
+#
+# default  Error         Use "x.y"     Create "default"   Use "x.y"
+# all      None          Use all       None               Use all
+# x.y      -             Use "x.y"     -                  Use "x.y"
+# a.b      Error         Error         Create "a.b"       Create "a.b"
+#
+# "x.y" - refers to a detected version;
+# "a.b" - refers to an undetected version.
+#
+# FIXME: Currently the command parameter and the <compiler> property parameter
+# seem to overlap in duties. Remove this duplication. This seems to be related
+# to why someone started preparing to replace init with configure rules.
+#
+rule init (
+    # The msvc version being configured. When omitted the tools invoked when no
+    # explicit version is given will be configured.
+    version ?
+
+    # The command used to invoke the compiler. If not specified:
+    #   - if version is given, default location for that version will be
+    #     searched
+    #
+    #   - if version is not given, default locations for MSVC 9.0, 8.0, 7.1, 7.0
+    #     and 6.* will be searched
+    #
+    #   - if compiler is not found in the default locations, PATH will be
+    #     searched.
+    : command *
+
+    # Options may include:
+    #
+    #     All options shared by multiple toolset types as handled by the
+    #   common.handle-options() rule, e.g. <cflags>, <compileflags>, <cxxflags>,
+    #   <fflags> & <linkflags>.
+    #
+    #   <assembler>
+    #   <compiler>
+    #   <idl-compiler>
+    #   <linker>
+    #   <mc-compiler>
+    #   <resource-compiler>
+    #       Exact tool names to be used by this msvc toolset configuration.
+    #
+    #   <compiler-filter>
+    #       Command through which to pipe the output of running the compiler.
+    #     For example to pass the output to STLfilt.
+    #
+    #   <setup>
+    #       Global setup command to invoke before running any of the msvc tools.
+    #     It will be passed additional option parameters depending on the actual
+    #     target platform.
+    #
+    #   <setup-amd64>
+    #   <setup-i386>
+    #   <setup-ia64>
+    #       Platform specific setup command to invoke before running any of the
+    #     msvc tools used when builing a target for a specific platform, e.g.
+    #     when building a 32 or 64 bit executable.
+    : options *
+)
+{
+    if $(command)
+    {
+        options += <command>$(command) ;
+    }
+    configure $(version) : $(options) ;
+}
+
+
+# 'configure' is a newer version of 'init'. The parameter 'command' is passed as
+# a part of the 'options' list. See the 'init' rule comment for more detailed
+# information.
+#
+rule configure ( version ? : options * )
+{
+    switch $(version)
+    {
+        case "all" :
+            if $(options)
+            {
+                errors.error "MSVC toolset configuration: options should be"
+                    "empty when '$(version)' is specified." ;
+            }
+
+            # Configure (i.e. mark as used) all registered versions.
+            local all-versions = [ $(.versions).all ] ;
+            if ! $(all-versions)
+            {
+                if $(.debug-configuration)
+                {
+                    ECHO "notice: [msvc-cfg] Asked to configure all registered"
+                        "msvc toolset versions when there are none currently"
+                        "registered." ;
+                }
+            }
+            else
+            {
+                for local v in $(all-versions)
+                {
+                    # Note that there is no need to skip already configured
+                    # versions here as this will request configure-really rule
+                    # to configure the version using default options which will
+                    # in turn cause it to simply do nothing in case the version
+                    # has already been configured.
+                    configure-really $(v) ;
+                }
+            }
+
+        case "default" :
+            configure-really : $(options) ;
+
+        case * :
+            configure-really $(version) : $(options) ;
+    }
+}
+
+
+# Sets up flag definitions dependent on the compiler version used.
+# - 'version' is the version of compiler in N.M format.
+# - 'conditions' is the property set to be used as flag conditions.
+# - 'toolset' is the toolset for which flag settings are to be defined.
+#   This makes the rule reusable for other msvc-option-compatible compilers.
+#
+rule configure-version-specific ( toolset : version : conditions )
+{
+    toolset.push-checking-for-flags-module unchecked ;
+    # Starting with versions 7.0, the msvc compiler have the /Zc:forScope and
+    # /Zc:wchar_t options that improve C++ standard conformance, but those
+    # options are off by default. If we are sure that the msvc version is at
+    # 7.*, add those options explicitly. We can be sure either if user specified
+    # version 7.* explicitly or if we auto-detected the version ourselves.
+    if ! [ MATCH ^(6\\.) : $(version) ]
+    {
+        toolset.flags $(toolset).compile CFLAGS $(conditions) : /Zc:forScope /Zc:wchar_t ;
+        toolset.flags $(toolset).compile.c++ C++FLAGS $(conditions) : /wd4675 ;
+
+        # Explicitly disable the 'function is deprecated' warning. Some msvc
+        # versions have a bug, causing them to emit the deprecation warning even
+        # with /W0.
+        toolset.flags $(toolset).compile CFLAGS $(conditions)/<warnings>off : /wd4996 ;
+
+        if [ MATCH ^([78]\\.) : $(version) ]
+        {
+            # 64-bit compatibility warning deprecated since 9.0, see
+            # http://msdn.microsoft.com/en-us/library/yt4xw8fh.aspx
+            toolset.flags $(toolset).compile CFLAGS $(conditions)/<warnings>all : /Wp64 ;
+        }
+    }
+
+    #
+    # Processor-specific optimization.
+    #
+
+    if [ MATCH ^([67]) : $(version) ]
+    {
+        # 8.0 deprecates some of the options.
+        toolset.flags $(toolset).compile CFLAGS $(conditions)/<optimization>speed $(conditions)/<optimization>space : /Ogiy /Gs ;
+        toolset.flags $(toolset).compile CFLAGS $(conditions)/<optimization>speed : /Ot ;
+        toolset.flags $(toolset).compile CFLAGS $(conditions)/<optimization>space : /Os ;
+
+        toolset.flags $(toolset).compile CFLAGS $(conditions)/$(.cpu-arch-i386)/<instruction-set> : /GB ;
+        toolset.flags $(toolset).compile CFLAGS $(conditions)/$(.cpu-arch-i386)/<instruction-set>i386 : /G3 ;
+        toolset.flags $(toolset).compile CFLAGS $(conditions)/$(.cpu-arch-i386)/<instruction-set>i486 : /G4 ;
+        toolset.flags $(toolset).compile CFLAGS $(conditions)/$(.cpu-arch-i386)/<instruction-set>$(.cpu-type-g5) : /G5 ;
+        toolset.flags $(toolset).compile CFLAGS $(conditions)/$(.cpu-arch-i386)/<instruction-set>$(.cpu-type-g6) : /G6 ;
+        toolset.flags $(toolset).compile CFLAGS $(conditions)/$(.cpu-arch-i386)/<instruction-set>$(.cpu-type-g7) : /G7 ;
+
+        # Improve floating-point accuracy. Otherwise, some of C++ Boost's "math"
+        # tests will fail.
+        toolset.flags $(toolset).compile CFLAGS $(conditions) : /Op ;
+
+        # 7.1 and below have single-threaded static RTL.
+        toolset.flags $(toolset).compile CFLAGS $(conditions)/<runtime-debugging>off/<runtime-link>static/<threading>single : /ML ;
+        toolset.flags $(toolset).compile CFLAGS $(conditions)/<runtime-debugging>on/<runtime-link>static/<threading>single : /MLd ;
+    }
+    else
+    {
+        # 8.0 and above adds some more options.
+        toolset.flags $(toolset).compile CFLAGS $(conditions)/$(.cpu-arch-amd64)/<instruction-set> : /favor:blend ;
+        toolset.flags $(toolset).compile CFLAGS $(conditions)/$(.cpu-arch-amd64)/<instruction-set>$(.cpu-type-em64t) : /favor:EM64T ;
+        toolset.flags $(toolset).compile CFLAGS $(conditions)/$(.cpu-arch-amd64)/<instruction-set>$(.cpu-type-amd64) : /favor:AMD64 ;
+
+        # 8.0 and above only has multi-threaded static RTL.
+        toolset.flags $(toolset).compile CFLAGS $(conditions)/<runtime-debugging>off/<runtime-link>static/<threading>single : /MT ;
+        toolset.flags $(toolset).compile CFLAGS $(conditions)/<runtime-debugging>on/<runtime-link>static/<threading>single : /MTd ;
+
+        # Specify target machine type so the linker will not need to guess.
+        toolset.flags $(toolset).link LINKFLAGS $(conditions)/$(.cpu-arch-amd64) : /MACHINE:X64 ;
+        toolset.flags $(toolset).link LINKFLAGS $(conditions)/$(.cpu-arch-i386)  : /MACHINE:X86 ;
+        toolset.flags $(toolset).link LINKFLAGS $(conditions)/$(.cpu-arch-ia64)  : /MACHINE:IA64 ;
+        
+        # Make sure that manifest will be generated even if there is no
+        # dependencies to put there.
+        toolset.flags $(toolset).link LINKFLAGS $(conditions)/<embed-manifest>off : /MANIFEST ;
+    }
+    toolset.pop-checking-for-flags-module ;
+}
+
+
+# Registers this toolset including all of its flags, features & generators. Does
+# nothing on repeated calls.
+#
+rule register-toolset ( )
+{
+    if ! msvc in [ feature.values toolset ]
+    {
+        register-toolset-really ;
+    }
+}
+
+
+# Declare action for creating static libraries. If library exists, remove it
+# before adding files. See
+# http://article.gmane.org/gmane.comp.lib.boost.build/4241 for rationale.
+if [ os.name ] in NT
+{
+    # The 'DEL' command would issue a message to stdout if the file does not
+    # exist, so need a check.
+    actions archive
+    {
+        if exist "$(<[1])" DEL "$(<[1])"
+        $(.LD) $(AROPTIONS) /out:"$(<[1])" @"@($(<[1]:W).rsp:E=$(.nl)"$(>)" $(.nl)$(LIBRARIES_MENTIONED_BY_FILE) $(.nl)"$(LIBRARY_OPTION)$(FINDLIBS_ST).lib" $(.nl)"$(LIBRARY_OPTION)$(FINDLIBS_SA).lib")"
+    }
+}
+else
+{
+    actions archive
+    {
+        $(.RM) "$(<[1])"
+        $(.LD) $(AROPTIONS) /out:"$(<[1])" @"@($(<[1]:W).rsp:E=$(.nl)"$(>)" $(.nl)$(LIBRARIES_MENTIONED_BY_FILE) $(.nl)"$(LIBRARY_OPTION)$(FINDLIBS_ST).lib" $(.nl)"$(LIBRARY_OPTION)$(FINDLIBS_SA).lib")"
+    }
+}
+
+
+# For the assembler the following options are turned on by default:
+#
+#   -Zp4   align structures to 4 bytes
+#   -Cp    preserve case of user identifiers
+#   -Cx    preserve case in publics, externs
+#
+actions compile.asm
+{
+    $(.ASM) -c -Zp4 -Cp -Cx -D$(DEFINES) $(ASMFLAGS) $(USER_ASMFLAGS) -Fo "$(<:W)" "$(>:W)"
+}
+
+
+rule compile.c ( targets + : sources * : properties * )
+{
+    C++FLAGS on $(targets[1]) = ;
+    get-rspline $(targets) : -TC ;
+    compile-c-c++ $(<) : $(>) [ on $(<) return $(PCH_FILE) ] [ on $(<) return $(PCH_HEADER) ] ;
+}
+
+
+rule compile.c.preprocess ( targets + : sources * : properties * )
+{
+    C++FLAGS on $(targets[1]) = ;
+    get-rspline $(targets) : -TC ;
+    preprocess-c-c++ $(<) : $(>) [ on $(<) return $(PCH_FILE) ] [ on $(<) return $(PCH_HEADER) ] ;
+}
+
+
+rule compile.c.pch ( targets + : sources * : properties * )
+{
+    C++FLAGS on $(targets[1]) = ;
+    get-rspline $(targets[1]) : -TC ;
+    get-rspline $(targets[2]) : -TC ;
+    local pch-source = [ on $(<) return $(PCH_SOURCE) ] ;
+    if $(pch-source)
+    {
+        DEPENDS $(<) : $(pch-source) ;
+        compile-c-c++-pch-s $(targets) : $(sources) $(pch-source) ;
+    }
+    else
+    {
+        compile-c-c++-pch $(targets) : $(sources) ;
+    }
+}
+
+toolset.flags msvc YLOPTION : "-Yl" ;
+
+# Action for running the C/C++ compiler without using precompiled headers.
+#
+# WARNING: Synchronize any changes this in action with intel-win
+#
+# Notes regarding PDB generation, for when we use <debug-symbols>on/<debug-store>database
+#
+# 1. PDB_CFLAG is only set for <debug-symbols>on/<debug-store>database, ensuring that the /Fd flag is dropped if PDB_CFLAG is empty
+#
+# 2. When compiling executables's source files, PDB_NAME is set on a per-source file basis by rule compile-c-c++. 
+#    The linker will pull these into the executable's PDB
+#
+# 3. When compiling library's source files, PDB_NAME is updated to <libname>.pdb for each source file by rule archive, 
+#    as in this case the compiler must be used to create a single PDB for our library.
+#
+actions compile-c-c++ bind PDB_NAME
+{
+    $(.CC) @"@($(<[1]:W).rsp:E="$(>[1]:W)" -Fo"$(<[1]:W)" $(PDB_CFLAG)"$(PDB_NAME)" -Yu"$(>[3]:D=)" -Fp"$(>[2]:W)" $(CC_RSPLINE))" $(.CC.FILTER)
+}
+
+actions preprocess-c-c++ bind PDB_NAME
+{
+    $(.CC) @"@($(<[1]:W).rsp:E="$(>[1]:W)" -E $(PDB_CFLAG)"$(PDB_NAME)" -Yu"$(>[3]:D=)" -Fp"$(>[2]:W)" $(CC_RSPLINE))" >"$(<[1]:W)"
+}
+
+rule compile-c-c++ ( targets + : sources * )
+{
+    DEPENDS $(<[1]) : [ on $(<[1]) return $(PCH_HEADER) ] ;
+    DEPENDS $(<[1]) : [ on $(<[1]) return $(PCH_FILE) ] ;
+    PDB_NAME on $(<) = $(<:S=.pdb) ;
+}
+
+rule preprocess-c-c++ ( targets + : sources * )
+{
+    DEPENDS $(<[1]) : [ on $(<[1]) return $(PCH_HEADER) ] ;
+    DEPENDS $(<[1]) : [ on $(<[1]) return $(PCH_FILE) ] ;
+    PDB_NAME on $(<) = $(<:S=.pdb) ;
+}
+
+# Action for running the C/C++ compiler using precompiled headers. In addition
+# to whatever else it needs to compile, this action also adds a temporary source
+# .cpp file used to compile the precompiled headers themselves.
+#
+# The global .escaped-double-quote variable is used to avoid messing up Emacs
+# syntax highlighting in the messy N-quoted code below.
+actions compile-c-c++-pch
+{
+    $(.CC) @"@($(<[1]:W).rsp:E="$(>[2]:W)" -Fo"$(<[2]:W)" -Yc"$(>[1]:D=)" $(YLOPTION)"__bjam_pch_symbol_$(>[1]:D=)" -Fp"$(<[1]:W)" $(CC_RSPLINE))" "@($(<[1]:W).cpp:E=#include $(.escaped-double-quote)$(>[1]:D=)$(.escaped-double-quote)$(.nl))" $(.CC.FILTER)
+}
+
+
+# Action for running the C/C++ compiler using precompiled headers. An already
+# built source file for compiling the precompiled headers is expected to be
+# given as one of the source parameters.
+actions compile-c-c++-pch-s
+{
+    $(.CC) @"@($(<[1]:W).rsp:E="$(>[2]:W)" -Fo"$(<[2]:W)" -Yc"$(>[1]:D=)" $(YLOPTION)"__bjam_pch_symbol_$(>[1]:D=)" -Fp"$(<[1]:W)" $(CC_RSPLINE))" $(.CC.FILTER)
+}
+
+
+rule compile.c++ ( targets + : sources * : properties * )
+{
+    get-rspline $(targets) : -TP ;
+    compile-c-c++ $(<) : $(>) [ on $(<) return $(PCH_FILE) ] [ on $(<) return $(PCH_HEADER) ] ;
+}
+
+rule compile.c++.preprocess ( targets + : sources * : properties * )
+{
+    get-rspline $(targets) : -TP ;
+    preprocess-c-c++ $(<) : $(>) [ on $(<) return $(PCH_FILE) ] [ on $(<) return $(PCH_HEADER) ] ;
+}
+
+
+rule compile.c++.pch ( targets + : sources * : properties * )
+{
+    get-rspline $(targets[1]) : -TP ;
+    get-rspline $(targets[2]) : -TP ;
+    local pch-source = [ on $(<) return $(PCH_SOURCE) ] ;
+    if $(pch-source)
+    {
+        DEPENDS $(<) : $(pch-source) ;
+        compile-c-c++-pch-s $(targets) : $(sources) $(pch-source) ;
+    }
+    else
+    {
+        compile-c-c++-pch $(targets) : $(sources) ;
+    }
+}
+
+
+# See midl.jam for details.
+#
+actions compile.idl
+{
+    $(.IDL) /nologo @"@($(<[1]:W).rsp:E=$(.nl)"$(>:W)" $(.nl)-D$(DEFINES) $(.nl)"-I$(INCLUDES:W)" $(.nl)-U$(UNDEFS) $(.nl)$(MIDLFLAGS) $(.nl)/tlb "$(<[1]:W)" $(.nl)/h "$(<[2]:W)" $(.nl)/iid "$(<[3]:W)" $(.nl)/proxy "$(<[4]:W)" $(.nl)/dlldata "$(<[5]:W)")"
+    $(.TOUCH_FILE) "$(<[4]:W)"
+    $(.TOUCH_FILE) "$(<[5]:W)"
+}
+
+
+actions compile.mc
+{
+    $(.MC) $(MCFLAGS) -h "$(<[1]:DW)" -r "$(<[2]:DW)" "$(>:W)"
+}
+
+
+actions compile.rc
+{
+    $(.RC) -l 0x409 -U$(UNDEFS) -D$(DEFINES) -I"$(INCLUDES:W)" -fo "$(<:W)" "$(>:W)"
+}
+
+
+rule link ( targets + : sources * : properties * )
+{
+    if <embed-manifest>on in $(properties)
+    {        
+        msvc.manifest $(targets) : $(sources) : $(properties) ;
+    }    
+}
+
+rule link.dll ( targets + : sources * : properties * )
+{
+    DEPENDS $(<) : [ on $(<) return $(DEF_FILE) ] ;
+    if <embed-manifest>on in $(properties)
+    {        
+        msvc.manifest.dll $(targets) : $(sources) : $(properties) ;
+    }    
+}
+
+# Incremental linking a DLL causes no end of problems: if the actual exports do
+# not change, the import .lib file is never updated. Therefore, the .lib is
+# always out-of-date and gets rebuilt every time. I am not sure that incremental
+# linking is such a great idea in general, but in this case I am sure we do not
+# want it.
+
+# Windows manifest is a new way to specify dependencies on managed DotNet
+# assemblies and Windows native DLLs. The manifests are embedded as resources
+# and are useful in any PE target (both DLL and EXE).
+
+if [ os.name ] in NT
+{
+    actions link bind DEF_FILE LIBRARIES_MENTIONED_BY_FILE
+    {
+        $(.LD) $(LINKFLAGS) /out:"$(<[1]:W)" /LIBPATH:"$(LINKPATH:W)" $(OPTIONS) @"@($(<[1]:W).rsp:E=$(.nl)"$(>)" $(.nl)$(LIBRARIES_MENTIONED_BY_FILE) $(.nl)$(LIBRARIES) $(.nl)"$(LIBRARY_OPTION)$(FINDLIBS_ST).lib" $(.nl)"$(LIBRARY_OPTION)$(FINDLIBS_SA).lib")"
+        if %ERRORLEVEL% NEQ 0 EXIT %ERRORLEVEL%
+    }
+    
+    actions manifest
+    {        
+        if exist "$(<[1]).manifest" (
+            $(.MT) -manifest "$(<[1]).manifest" "-outputresource:$(<[1]);1"
+        )
+    }
+    
+    actions link.dll bind DEF_FILE LIBRARIES_MENTIONED_BY_FILE
+    {
+        $(.LD) /DLL $(LINKFLAGS) /out:"$(<[1]:W)" /IMPLIB:"$(<[2]:W)" /LIBPATH:"$(LINKPATH:W)" /def:"$(DEF_FILE)" $(OPTIONS) @"@($(<[1]:W).rsp:E=$(.nl)"$(>)" $(.nl)$(LIBRARIES_MENTIONED_BY_FILE) $(.nl)$(LIBRARIES) $(.nl)"$(LIBRARY_OPTION)$(FINDLIBS_ST).lib" $(.nl)"$(LIBRARY_OPTION)$(FINDLIBS_SA).lib")"
+        if %ERRORLEVEL% NEQ 0 EXIT %ERRORLEVEL%
+    }
+
+    actions manifest.dll
+    {        
+        if exist "$(<[1]).manifest" (
+            $(.MT) -manifest "$(<[1]).manifest" "-outputresource:$(<[1]);2"
+        )
+    }    
+}
+else
+{        
+    actions link bind DEF_FILE LIBRARIES_MENTIONED_BY_FILE
+    {
+        $(.LD) $(LINKFLAGS) /out:"$(<[1]:W)" /LIBPATH:"$(LINKPATH:W)" $(OPTIONS) @"@($(<[1]:W).rsp:E=$(.nl)"$(>)" $(.nl)$(LIBRARIES_MENTIONED_BY_FILE) $(.nl)$(LIBRARIES) $(.nl)"$(LIBRARY_OPTION)$(FINDLIBS_ST).lib" $(.nl)"$(LIBRARY_OPTION)$(FINDLIBS_SA).lib")"
+    }
+
+    actions manifest
+    {        
+        if test -e "$(<[1]).manifest"; then
+            $(.MT) -manifest "$(<[1]:W).manifest" "-outputresource:$(<[1]:W);1"
+        fi
+    }
+    
+    actions link.dll bind DEF_FILE LIBRARIES_MENTIONED_BY_FILE
+    {
+        $(.LD) /DLL $(LINKFLAGS) /out:"$(<[1]:W)" /IMPLIB:"$(<[2]:W)" /LIBPATH:"$(LINKPATH:W)" /def:"$(DEF_FILE)" $(OPTIONS) @"@($(<[1]:W).rsp:E=$(.nl)"$(>)" $(.nl)$(LIBRARIES_MENTIONED_BY_FILE) $(.nl)$(LIBRARIES) $(.nl)"$(LIBRARY_OPTION)$(FINDLIBS_ST).lib" $(.nl)"$(LIBRARY_OPTION)$(FINDLIBS_SA).lib")"
+    }
+    
+    actions manifest.dll
+    {
+        if test -e "$(<[1]).manifest"; then
+          $(.MT) -manifest "$(<[1]:W).manifest" "-outputresource:$(<[1]:W);2"
+        fi
+    }    
+}
+
+# this rule sets up the pdb file that will be used when generating static 
+# libraries and the debug-store option is database, so that the compiler 
+# puts all debug info into a single .pdb file named after the library
+#
+# Poking at source targets this way is probably not clean, but it's the
+# easiest approach.
+rule archive ( targets + : sources * : properties * )
+{
+    PDB_NAME on $(>) = $(<:S=.pdb) ;
+}
+
+################################################################################
+#
+# Classes.
+#
+################################################################################
+
+class msvc-pch-generator : pch-generator
+{
+    import property-set ;
+
+    rule run-pch ( project name ? : property-set : sources * )
+    {
+        # Searching for the header and source file in the sources.
+        local pch-header ;
+        local pch-source ;
+        for local s in $(sources)
+        {
+            if [ type.is-derived [ $(s).type ] H ]
+            {
+                pch-header = $(s) ;
+            }
+            else if
+                [ type.is-derived [ $(s).type ] CPP ] ||
+                [ type.is-derived [ $(s).type ] C ]
+            {
+                pch-source = $(s) ;
+            }
+        }
+
+        if ! $(pch-header)
+        {
+            errors.user-error "can not build pch without pch-header" ;
+        }
+
+        # If we do not have the PCH source - that is fine. We will just create a
+        # temporary .cpp file in the action.
+
+        local generated = [ generator.run $(project) $(name)
+            : [ property-set.create
+                # Passing of <pch-source> is a dirty trick, needed because
+                # non-composing generators with multiple inputs are subtly
+                # broken. For more detailed information see:
+                # https://zigzag.cs.msu.su:7813/boost.build/ticket/111
+                <pch-source>$(pch-source)
+                [ $(property-set).raw ] ]
+            : $(pch-header) ] ;
+
+        local pch-file ;
+        for local g in $(generated)
+        {
+            if [ type.is-derived [ $(g).type ] PCH ]
+            {
+                pch-file = $(g) ;
+            }
+        }
+
+        return [ property-set.create <pch-header>$(pch-header)
+            <pch-file>$(pch-file) ] $(generated) ;
+    }
+}
+
+
+################################################################################
+#
+# Local rules.
+#
+################################################################################
+
+# Detects versions listed as '.known-versions' by checking registry information,
+# environment variables & default paths. Supports both native Windows and
+# Cygwin.
+#
+local rule auto-detect-toolset-versions ( )
+{
+    if [ os.name ] in NT CYGWIN
+    {
+        # Get installation paths from the registry.
+        for local i in $(.known-versions)
+        {
+            if $(.version-$(i)-reg)
+            {
+                local vc-path ;
+                for local x in "" "Wow6432Node\\"
+                {
+                    vc-path += [ W32_GETREG
+                        "HKEY_LOCAL_MACHINE\\SOFTWARE\\"$(x)"\\Microsoft\\"$(.version-$(i)-reg)
+                        : "ProductDir" ] ;
+                }
+
+                if $(vc-path)
+                {
+                    vc-path = [ path.join [ path.make-NT $(vc-path[1]) ] "bin" ] ;
+                    register-configuration $(i) : [ path.native $(vc-path[1]) ] ;
+                }
+            }
+        }
+    }
+
+    # Check environment and default installation paths.
+    for local i in $(.known-versions)
+    {
+        if ! $(i) in [ $(.versions).all ]
+        {
+            register-configuration $(i) : [ default-path $(i) ] ;
+        }
+    }
+}
+
+
+# Worker rule for toolset version configuration. Takes an explicit version id or
+# nothing in case it should configure the default toolset version (the first
+# registered one or a new 'default' one in case no toolset versions have been
+# registered yet).
+#
+local rule configure-really ( version ? : options * )
+{
+    local v = $(version) ;
+
+    # Decide what the 'default' version is.
+    if ! $(v)
+    {
+        # Take the first registered (i.e. auto-detected) version.
+        version = [ $(.versions).all ] ;
+        version = $(version[1]) ;
+        v = $(version) ;
+
+        # Note: 'version' can still be empty at this point if no versions have
+        # been auto-detected.
+        version ?= "default" ;
+    }
+
+    # Version alias -> real version number.
+    if $(.version-alias-$(version))
+    {
+        version = $(.version-alias-$(version)) ;
+    }
+
+    # Check whether the selected configuration is already in use.
+    if $(version) in [ $(.versions).used ]
+    {
+        # Allow multiple 'toolset.using' calls for the same configuration if the
+        # identical sets of options are used.
+        if $(options) && ( $(options) != [ $(.versions).get $(version) : options ] )
+        {
+            errors.error "MSVC toolset configuration: Toolset version"
+                "'$(version)' already configured." ;
+        }
+    }
+    else
+    {
+        # Register a new configuration.
+        $(.versions).register $(version) ;
+
+        # Add user-supplied to auto-detected options.
+        options = [ $(.versions).get $(version) : options ] $(options) ;
+
+        # Mark the configuration as 'used'.
+        $(.versions).use $(version) ;
+
+        # Generate conditions and save them.
+        local conditions = [ common.check-init-parameters msvc : version $(v) ]
+            ;
+
+        $(.versions).set $(version) : conditions : $(conditions) ;
+
+        local command = [ feature.get-values <command> : $(options) ] ;
+
+        # If version is specified, we try to search first in default paths, and
+        # only then in PATH.
+        command = [ common.get-invocation-command msvc : cl.exe : $(command) :
+            [ default-paths $(version) ] : $(version) ] ;
+
+        common.handle-options msvc : $(conditions) : $(command) : $(options) ;
+
+        if ! $(version)
+        {
+            # Even if version is not explicitly specified, try to detect the
+            # version from the path.
+            # FIXME: We currently detect both Microsoft Visual Studio 9.0 and
+            # 9.0express as 9.0 here.
+            if [ MATCH "(Microsoft Visual Studio 10)" : $(command) ]
+            {
+                version = 10.0 ;
+            }
+            else if [ MATCH "(Microsoft Visual Studio 9)" : $(command) ]
+            {
+                version = 9.0 ;
+            }
+            else if [ MATCH "(Microsoft Visual Studio 8)" : $(command) ]
+            {
+                version = 8.0 ;
+            }
+            else if [ MATCH "(NET 2003[\/\\]VC7)" : $(command) ]
+            {
+                version = 7.1 ;
+            }
+            else if [ MATCH "(Microsoft Visual C\\+\\+ Toolkit 2003)" :
+                $(command) ]
+            {
+                version = 7.1toolkit ;
+            }
+            else if [ MATCH "(.NET[\/\\]VC7)" : $(command) ]
+            {
+                version = 7.0 ;
+            }
+            else
+            {
+                version = 6.0 ;
+            }
+        }
+
+        # Generate and register setup command.
+
+        local below-8.0 = [ MATCH ^([67]\\.) : $(version) ] ;
+
+        local cpu = i386 amd64 ia64 ;
+        if $(below-8.0)
+        {
+            cpu = i386 ;
+        }
+
+        local setup-amd64 ;
+        local setup-i386 ;
+        local setup-ia64 ;
+
+        if $(command)
+        {
+            # TODO: Note that if we specify a non-existant toolset version then
+            # this rule may find and use a corresponding compiler executable
+            # belonging to an incorrect toolset version. For example, if you
+            # have only MSVC 7.1 installed, have its executable on the path and
+            # specify you want Boost Build to use MSVC 9.0, then you want Boost
+            # Build to report an error but this may cause it to silently use the
+            # MSVC 7.1 compiler even though it thinks it is using the msvc-9.0
+            # toolset version.
+            command = [ common.get-absolute-tool-path $(command[-1]) ] ;
+        }
+        
+        if $(command)
+        {            
+            local parent = [ path.make $(command) ] ;
+            parent = [ path.parent $(parent) ] ;
+            parent = [ path.native $(parent) ] ;
+
+            # Setup will be used if the command name has been specified. If
+            # setup is not specified explicitly then a default setup script will
+            # be used instead. Setup scripts may be global or arhitecture/
+            # /platform/cpu specific. Setup options are used only in case of
+            # global setup scripts.
+
+            # Default setup scripts provided with different VC distributions:
+            #
+            #   VC 7.1 had only the vcvars32.bat script specific to 32 bit i386
+            # builds. It was located in the bin folder for the regular version
+            # and in the root folder for the free VC 7.1 tools.
+            #
+            #   Later 8.0 & 9.0 versions introduce separate platform specific
+            # vcvars*.bat scripts (e.g. 32 bit, 64 bit AMD or 64 bit Itanium)
+            # located in or under the bin folder. Most also include a global
+            # vcvarsall.bat helper script located in the root folder which runs
+            # one of the aforementioned vcvars*.bat scripts based on the options
+            # passed to it. So far only the version coming with some PlatformSDK
+            # distributions does not include this top level script but to
+            # support those we need to fall back to using the worker scripts
+            # directly in case the top level script can not be found.
+
+            local global-setup = [ feature.get-values <setup> : $(options) ] ;
+            global-setup = $(global-setup[1]) ;
+            if ! $(below-8.0)
+            {
+                global-setup ?= [ locate-default-setup $(command) : $(parent) :
+                    vcvarsall.bat ] ;
+            }
+
+            local default-setup-amd64 = vcvarsx86_amd64.bat ;
+            local default-setup-i386  = vcvars32.bat ;
+            local default-setup-ia64  = vcvarsx86_ia64.bat ;
+
+            # http://msdn2.microsoft.com/en-us/library/x4d2c09s(VS.80).aspx and
+            # http://msdn2.microsoft.com/en-us/library/x4d2c09s(vs.90).aspx
+            # mention an x86_IPF option, that seems to be a documentation bug
+            # and x86_ia64 is the correct option.
+            local default-global-setup-options-amd64 = x86_amd64 ;
+            local default-global-setup-options-i386  = x86 ;
+            local default-global-setup-options-ia64  = x86_ia64 ;
+
+            # When using 64-bit Windows, and targeting 64-bit, it is possible to
+            # use a native 64-bit compiler, selected by the "amd64" & "ia64"
+            # parameters to vcvarsall.bat. There are two variables we can use --
+            # PROCESSOR_ARCHITECTURE and PROCESSOR_IDENTIFIER. The first is
+            # 'x86' when running 32-bit Windows, no matter which processor is
+            # used, and 'AMD64' on 64-bit windows on x86 (either AMD64 or EM64T)
+            # Windows.
+            #
+            if [ MATCH ^(AMD64) : [ os.environ PROCESSOR_ARCHITECTURE ] ]
+            {
+                default-global-setup-options-amd64 = amd64 ;
+            }
+            # TODO: The same 'native compiler usage' should be implemented for
+            # the Itanium platform by using the "ia64" parameter. For this
+            # though we need someone with access to this platform who can find
+            # out how to correctly detect this case.
+            else if $(somehow-detect-the-itanium-platform)
+            {
+                default-global-setup-options-ia64 = ia64 ;
+            }
+
+            local setup-prefix = "call " ;
+            local setup-suffix = " >nul"$(.nl) ;
+            if ! [ os.name ] in NT
+            {
+                setup-prefix = "cmd.exe /S /C call " ;
+                setup-suffix = " \">nul\" \"&&\" " ;
+            }
+
+            for local c in $(cpu)
+            {
+                local setup-options ;
+
+                setup-$(c) = [ feature.get-values <setup-$(c)> : $(options) ] ;
+
+                if ! $(setup-$(c))-is-not-empty
+                {
+                    if $(global-setup)-is-not-empty
+                    {
+                        setup-$(c) = $(global-setup) ;
+
+                        # If needed we can easily add using configuration flags
+                        # here for overriding which options get passed to the
+                        # global setup command for which target platform:
+                        # setup-options = [ feature.get-values <setup-options-$(c)> : $(options) ] ;
+
+                        setup-options ?= $(default-global-setup-options-$(c)) ;
+                    }
+                    else
+                    {
+                        setup-$(c) = [ locate-default-setup $(command) : $(parent) : $(default-setup-$(c)) ] ;
+                    }
+                }
+
+                # Cygwin to Windows path translation.
+                setup-$(c) = "\""$(setup-$(c):W)"\"" ;
+
+                # Append setup options to the setup name and add the final setup
+                # prefix & suffix.
+                setup-options ?= "" ;
+                setup-$(c) = $(setup-prefix)$(setup-$(c):J=" ")" "$(setup-options:J=" ")$(setup-suffix) ;
+            }
+        }
+
+        # Get tool names (if any) and finish setup.
+
+        compiler = [ feature.get-values <compiler> : $(options) ] ;
+        compiler ?= cl ;
+
+        linker = [ feature.get-values <linker> : $(options) ] ;
+        linker ?= link ;
+
+        resource-compiler = [ feature.get-values <resource-compiler> : $(options) ] ;
+        resource-compiler ?= rc ;
+
+        # Turn on some options for i386 assembler
+        #  -coff  generate COFF format object file (compatible with cl.exe output)
+        local default-assembler-amd64 = ml64 ;
+        local default-assembler-i386  = "ml -coff" ;
+        local default-assembler-ia64  = ias ;
+
+        assembler = [ feature.get-values <assembler> : $(options) ] ;
+
+        idl-compiler = [ feature.get-values <idl-compiler> : $(options) ] ;
+        idl-compiler ?= midl ;
+
+        mc-compiler = [ feature.get-values <mc-compiler> : $(options) ] ;
+        mc-compiler ?= mc ;
+
+        manifest-tool = [ feature.get-values <manifest-tool> : $(options) ] ;
+        manifest-tool ?= mt ;
+        
+        local cc-filter = [ feature.get-values <compiler-filter> : $(options) ] ;
+
+        for local c in $(cpu)
+        {
+            # Setup script is not required in some configurations.
+            setup-$(c) ?= "" ;
+
+            local cpu-conditions = $(conditions)/$(.cpu-arch-$(c)) ;
+
+            if $(.debug-configuration)
+            {
+                for local cpu-condition in $(cpu-conditions)
+                {
+                    ECHO "notice: [msvc-cfg] condition: '$(cpu-condition)', setup: '$(setup-$(c))'" ;
+                }
+            }
+
+            local cpu-assembler = $(assembler) ;
+            cpu-assembler ?= $(default-assembler-$(c)) ;
+
+            toolset.flags msvc.compile .CC  $(cpu-conditions) : $(setup-$(c))$(compiler) /Zm800 -nologo ;
+            toolset.flags msvc.compile .RC  $(cpu-conditions) : $(setup-$(c))$(resource-compiler) ;
+            toolset.flags msvc.compile .ASM $(cpu-conditions) : $(setup-$(c))$(cpu-assembler) -nologo ;
+            toolset.flags msvc.link    .LD  $(cpu-conditions) : $(setup-$(c))$(linker) /NOLOGO /INCREMENTAL:NO ;
+            toolset.flags msvc.archive .LD  $(cpu-conditions) : $(setup-$(c))$(linker) /lib /NOLOGO  ;
+            toolset.flags msvc.compile .IDL $(cpu-conditions) : $(setup-$(c))$(idl-compiler) ;
+            toolset.flags msvc.compile .MC  $(cpu-conditions) : $(setup-$(c))$(mc-compiler) ;
+
+            toolset.flags msvc.link .MT $(cpu-conditions) : $(setup-$(c))$(manifest-tool) -nologo ;
+
+            if $(cc-filter)
+            {
+                toolset.flags msvc .CC.FILTER $(cpu-conditions) : "|" $(cc-filter) ;
+            }
+        }
+
+        # Set version-specific flags.
+        configure-version-specific msvc : $(version) : $(conditions) ;
+    }
+}
+
+
+# Returns the default installation path for the given version.
+#
+local rule default-path ( version )
+{
+    # Use auto-detected path if possible.
+    local path = [ feature.get-values <command> : [ $(.versions).get $(version)
+        : options ] ] ;
+
+    if $(path)
+    {
+        path = $(path:D) ;
+    }
+    else
+    {
+        # Check environment.
+        if $(.version-$(version)-env)
+        {
+            local vc-path = [ os.environ $(.version-$(version)-env) ] ;
+            if $(vc-path)
+            {
+                vc-path = [ path.make $(vc-path) ] ;
+                vc-path = [ path.join $(vc-path) $(.version-$(version)-envpath) ] ;
+                vc-path = [ path.native $(vc-path) ] ;
+
+                path = $(vc-path) ;
+            }
+        }
+
+        # Check default path.
+        if ! $(path) && $(.version-$(version)-path)
+        {
+            path = [ path.native [ path.join $(.ProgramFiles) $(.version-$(version)-path) ] ] ;
+        }
+    }
+
+    return $(path) ;
+}
+
+
+# Returns either the default installation path (if 'version' is not empty) or
+# list of all known default paths (if no version is given)
+#
+local rule default-paths ( version ? )
+{
+    local possible-paths ;
+
+    if $(version)
+    {
+        possible-paths += [ default-path $(version) ] ;
+    }
+    else
+    {
+        for local i in $(.known-versions)
+        {
+            possible-paths += [ default-path $(i) ] ;
+        }
+    }
+
+    return $(possible-paths) ;
+}
+
+
+rule get-rspline ( target : lang-opt )
+{
+    CC_RSPLINE on $(target) = [ on $(target) return $(lang-opt) -U$(UNDEFS)
+        $(CFLAGS) $(C++FLAGS) $(OPTIONS) -c $(.nl)-D$(DEFINES)
+        $(.nl)\"-I$(INCLUDES:W)\" ] ;
+}
+
+class msvc-linking-generator : linking-generator
+{
+    # Calls the base version.  If necessary, also create a target for the
+    # manifest file.specifying source's name as the name of the created
+    # target. As result, the PCH will be named whatever.hpp.gch, and not
+    # whatever.gch.
+    rule generated-targets ( sources + : property-set : project name ? )
+    {
+        local result = [ linking-generator.generated-targets $(sources)
+          : $(property-set) : $(project) $(name) ] ;
+
+        if $(result)
+        {
+            local name-main = [ $(result[0]).name ] ;
+            local action = [ $(result[0]).action ] ;
+            
+            if [ $(property-set).get <debug-symbols> ] = "on"
+            {		 
+                # We force exact name on PDB. The reason is tagging -- the tag rule may
+                # reasonably special case some target types, like SHARED_LIB. The tag rule
+                # will not catch PDB, and it cannot even easily figure if PDB is paired with
+                # SHARED_LIB or EXE or something else. Because PDB always get the
+                # same name as the main target, with .pdb as extension, just force it.
+                local target = [ class.new file-target $(name-main:S=.pdb) exact : PDB : $(project) : $(action) ] ;
+                local registered-target = [ virtual-target.register $(target) ] ;
+                if $(target) != $(registered-target)
+                {
+                    $(action).replace-targets $(target) : $(registered-target) ;
+                }
+                result += $(registered-target) ;
+            }
+
+            if [ $(property-set).get <embed-manifest> ] = "off"
+            {
+                # Manifest is evil target. It has .manifest appened to the name of 
+                # main target, including extension. E.g. a.exe.manifest. We use 'exact'
+                # name because to achieve this effect.
+                local target = [ class.new file-target $(name-main).manifest exact : MANIFEST : $(project) : $(action) ] ;
+                local registered-target = [ virtual-target.register $(target) ] ;
+                if $(target) != $(registered-target)
+                {
+                    $(action).replace-targets $(target) : $(registered-target) ;
+                }
+                result += $(registered-target) ;
+            }
+        }
+        return $(result) ;
+    }
+}
+
+
+
+# Unsafe worker rule for the register-toolset() rule. Must not be called
+# multiple times.
+#
+local rule register-toolset-really ( )
+{
+    feature.extend toolset : msvc ;
+
+    # Intel and msvc supposedly have link-compatible objects.
+    feature.subfeature toolset msvc : vendor : intel : propagated optional ;
+
+    # Inherit MIDL flags.
+    toolset.inherit-flags msvc : midl ;
+
+    # Inherit MC flags.
+    toolset.inherit-flags msvc : mc ;
+
+    # Dynamic runtime comes only in MT flavour.
+    toolset.add-requirements
+        <toolset>msvc,<runtime-link>shared:<threading>multi ;
+
+    # Declare msvc toolset specific features.
+    {
+        feature.feature debug-store : object database : propagated ;
+        feature.feature pch-source  :                 : dependency free ;
+    }
+
+    # Declare generators.
+    {
+        # TODO: Is it possible to combine these? Make the generators
+        # non-composing so that they do not convert each source into a separate
+        # .rsp file.
+        generators.register [ new msvc-linking-generator 
+            msvc.link : OBJ SEARCHED_LIB STATIC_LIB IMPORT_LIB : EXE : <toolset>msvc ] ;
+        generators.register [ new msvc-linking-generator 
+            msvc.link.dll : OBJ SEARCHED_LIB STATIC_LIB IMPORT_LIB : SHARED_LIB IMPORT_LIB : <toolset>msvc ] ;
+
+        generators.register-archiver msvc.archive : OBJ : STATIC_LIB : <toolset>msvc ;
+        generators.register-c-compiler msvc.compile.c++ : CPP : OBJ : <toolset>msvc ;
+        generators.register-c-compiler msvc.compile.c : C : OBJ : <toolset>msvc ;
+        generators.register-c-compiler msvc.compile.c++.preprocess : CPP : PREPROCESSED_CPP : <toolset>msvc ;
+        generators.register-c-compiler msvc.compile.c.preprocess : C : PREPROCESSED_C : <toolset>msvc ;
+
+        # Using 'register-c-compiler' adds the build directory to INCLUDES.
+        generators.register-c-compiler msvc.compile.rc : RC : OBJ(%_res) : <toolset>msvc ;
+        generators.override msvc.compile.rc : rc.compile.resource ;
+        generators.register-standard msvc.compile.asm : ASM : OBJ : <toolset>msvc ;
+
+        generators.register-c-compiler msvc.compile.idl : IDL : MSTYPELIB H C(%_i) C(%_proxy) C(%_dlldata) : <toolset>msvc ;
+        generators.override msvc.compile.idl : midl.compile.idl ;
+
+        generators.register-standard msvc.compile.mc : MC : H RC : <toolset>msvc ;
+        generators.override msvc.compile.mc : mc.compile ;
+
+        # Note: the 'H' source type will catch both '.h' and '.hpp' headers as
+        # the latter have their HPP type derived from H. The type of compilation
+        # is determined entirely by the destination type.
+        generators.register [ new msvc-pch-generator msvc.compile.c.pch   : H :   C_PCH OBJ : <pch>on <toolset>msvc ] ;
+        generators.register [ new msvc-pch-generator msvc.compile.c++.pch : H : CPP_PCH OBJ : <pch>on <toolset>msvc ] ;
+
+        generators.override msvc.compile.c.pch   : pch.default-c-pch-generator ;
+        generators.override msvc.compile.c++.pch : pch.default-cpp-pch-generator ;
+    }
+
+    toolset.flags msvc.compile PCH_FILE   <pch>on : <pch-file>   ;
+    toolset.flags msvc.compile PCH_SOURCE <pch>on : <pch-source> ;
+    toolset.flags msvc.compile PCH_HEADER <pch>on : <pch-header> ;
+
+    #
+    # Declare flags for compilation.
+    #
+
+    toolset.flags msvc.compile CFLAGS <optimization>speed : /O2 ;
+    toolset.flags msvc.compile CFLAGS <optimization>space : /O1 ;
+
+    toolset.flags msvc.compile CFLAGS $(.cpu-arch-ia64)/<instruction-set>$(.cpu-type-itanium) : /G1 ;
+    toolset.flags msvc.compile CFLAGS $(.cpu-arch-ia64)/<instruction-set>$(.cpu-type-itanium2) : /G2 ;
+
+    toolset.flags msvc.compile CFLAGS <debug-symbols>on/<debug-store>object : /Z7 ;
+    toolset.flags msvc.compile CFLAGS <debug-symbols>on/<debug-store>database : /Zi ;
+    toolset.flags msvc.compile CFLAGS <optimization>off : /Od ;
+    toolset.flags msvc.compile CFLAGS <inlining>off : /Ob0 ;
+    toolset.flags msvc.compile CFLAGS <inlining>on : /Ob1 ;
+    toolset.flags msvc.compile CFLAGS <inlining>full : /Ob2 ;
+
+    toolset.flags msvc.compile CFLAGS <warnings>on : /W3 ;
+    toolset.flags msvc.compile CFLAGS <warnings>off : /W0 ;
+    toolset.flags msvc.compile CFLAGS <warnings>all : /W4 ;
+    toolset.flags msvc.compile CFLAGS <warnings-as-errors>on : /WX ;
+
+    toolset.flags msvc.compile C++FLAGS  <exception-handling>on/<asynch-exceptions>off/<extern-c-nothrow>off : /EHs ;
+    toolset.flags msvc.compile C++FLAGS  <exception-handling>on/<asynch-exceptions>off/<extern-c-nothrow>on : /EHsc ;
+    toolset.flags msvc.compile C++FLAGS  <exception-handling>on/<asynch-exceptions>on/<extern-c-nothrow>off : /EHa ;
+    toolset.flags msvc.compile C++FLAGS  <exception-handling>on/<asynch-exceptions>on/<extern-c-nothrow>on : /EHac ;
+
+    # By default 8.0 enables rtti support while prior versions disabled it. We
+    # simply enable or disable it explicitly so we do not have to depend on this
+    # default behaviour.
+    toolset.flags msvc.compile CFLAGS <rtti>on : /GR ;
+    toolset.flags msvc.compile CFLAGS <rtti>off : /GR- ;
+    toolset.flags msvc.compile CFLAGS <runtime-debugging>off/<runtime-link>shared : /MD ;
+    toolset.flags msvc.compile CFLAGS <runtime-debugging>on/<runtime-link>shared : /MDd ;
+
+    toolset.flags msvc.compile CFLAGS <runtime-debugging>off/<runtime-link>static/<threading>multi : /MT ;
+    toolset.flags msvc.compile CFLAGS <runtime-debugging>on/<runtime-link>static/<threading>multi : /MTd ;
+
+    toolset.flags msvc.compile OPTIONS <cflags> : ;
+    toolset.flags msvc.compile.c++ OPTIONS <cxxflags> : ;
+
+    toolset.flags msvc.compile PDB_CFLAG <debug-symbols>on/<debug-store>database : /Fd ;
+
+    toolset.flags msvc.compile DEFINES <define> ;
+    toolset.flags msvc.compile UNDEFS <undef> ;
+    toolset.flags msvc.compile INCLUDES <include> ;
+
+    # Declare flags for the assembler.
+    toolset.flags msvc.compile.asm USER_ASMFLAGS <asmflags> ;
+
+    toolset.flags msvc.compile.asm ASMFLAGS <debug-symbols>on : "/Zi /Zd" ;
+
+    toolset.flags msvc.compile.asm ASMFLAGS <warnings>on : /W3 ;
+    toolset.flags msvc.compile.asm ASMFLAGS <warnings>off : /W0 ;
+    toolset.flags msvc.compile.asm ASMFLAGS <warnings>all : /W4 ;
+    toolset.flags msvc.compile.asm ASMFLAGS <warnings-as-errors>on : /WX ;
+
+    toolset.flags msvc.compile.asm DEFINES <define> ;
+
+    # Declare flags for linking.
+    {
+        toolset.flags msvc.link PDB_LINKFLAG <debug-symbols>on/<debug-store>database : /PDB: ;  # not used yet
+        toolset.flags msvc.link LINKFLAGS <debug-symbols>on : /DEBUG ;
+        toolset.flags msvc.link DEF_FILE <def-file> ;
+
+        # The linker disables the default optimizations when using /DEBUG so we
+        # have to enable them manually for release builds with debug symbols.
+        toolset.flags msvc LINKFLAGS <debug-symbols>on/<runtime-debugging>off : /OPT:REF,ICF ;
+
+        toolset.flags msvc LINKFLAGS <user-interface>console : /subsystem:console ;
+        toolset.flags msvc LINKFLAGS <user-interface>gui : /subsystem:windows ;
+        toolset.flags msvc LINKFLAGS <user-interface>wince : /subsystem:windowsce ;
+        toolset.flags msvc LINKFLAGS <user-interface>native : /subsystem:native ;
+        toolset.flags msvc LINKFLAGS <user-interface>auto : /subsystem:posix ;
+
+        toolset.flags msvc.link OPTIONS <linkflags> ;
+        toolset.flags msvc.link LINKPATH <library-path> ;
+
+        toolset.flags msvc.link FINDLIBS_ST <find-static-library> ;
+        toolset.flags msvc.link FINDLIBS_SA <find-shared-library> ;
+        toolset.flags msvc.link LIBRARY_OPTION <toolset>msvc : "" : unchecked ;
+        toolset.flags msvc.link LIBRARIES_MENTIONED_BY_FILE : <library-file> ;
+    }
+
+    toolset.flags msvc.archive AROPTIONS <archiveflags> ;
+}
+
+
+# Locates the requested setup script under the given folder and returns its full
+# path or nothing in case the script can not be found. In case multiple scripts
+# are found only the first one is returned.
+#
+# TODO: There used to exist a code comment for the msvc.init rule stating that
+# we do not correctly detect the location of the vcvars32.bat setup script for
+# the free VC7.1 tools in case user explicitly provides a path. This should be
+# tested or simply remove this whole comment in case this toolset version is no
+# longer important.
+#
+local rule locate-default-setup ( command : parent : setup-name )
+{
+    local result = [ GLOB $(command) $(parent) : $(setup-name) ] ;
+    if $(result[1])
+    {
+        return $(result[1]) ;
+    }
+}
+
+
+# Validates given path, registers found configuration and prints debug
+# information about it.
+#
+local rule register-configuration ( version : path ? )
+{
+    if $(path)
+    {
+        local command = [ GLOB $(path) : cl.exe ] ;
+
+        if $(command)
+        {
+            if $(.debug-configuration)
+            {
+                ECHO "notice: [msvc-cfg] msvc-$(version) detected, command: '$(command)'" ;
+            }
+
+            $(.versions).register $(version) ;
+            $(.versions).set $(version) : options : <command>$(command) ;
+        }
+    }
+}
+
+
+################################################################################
+#
+#   Startup code executed when loading this module.
+#
+################################################################################
+
+if [ MATCH (--debug-configuration) : [ modules.peek : ARGV ] ]
+{
+    .debug-configuration = true ;
+}
+
+# Miscellaneous constants.
+.RM = [ common.rm-command ] ;
+.nl = "
+" ;
+.ProgramFiles = [ path.make [ common.get-program-files-dir ] ] ;
+.escaped-double-quote = "\"" ;
+.TOUCH_FILE = [ common.file-touch-command ] ;
+
+# List of all registered configurations.
+.versions = [ new configurations ] ;
+
+# Supported CPU architectures.
+.cpu-arch-i386 =
+    <architecture>/<address-model>
+    <architecture>/<address-model>32
+    <architecture>x86/<address-model>
+    <architecture>x86/<address-model>32 ;
+
+.cpu-arch-amd64 =
+    <architecture>/<address-model>64
+    <architecture>x86/<address-model>64 ;
+
+.cpu-arch-ia64 =
+    <architecture>ia64/<address-model>
+    <architecture>ia64/<address-model>64 ;
+
+
+# Supported CPU types (only Itanium optimization options are supported from
+# VC++ 2005 on). See
+# http://msdn2.microsoft.com/en-us/library/h66s5s0e(vs.90).aspx for more
+# detailed information.
+.cpu-type-g5       = i586 pentium pentium-mmx ;
+.cpu-type-g6       = i686 pentiumpro pentium2 pentium3 pentium3m pentium-m k6
+                     k6-2 k6-3 winchip-c6 winchip2 c3 c3-2 ;
+.cpu-type-em64t    = prescott nocona conroe conroe-xe conroe-l allendale mermon
+                     mermon-xe kentsfield kentsfield-xe penryn wolfdale
+                     yorksfield nehalem ;
+.cpu-type-amd64    = k8 opteron athlon64 athlon-fx ;
+.cpu-type-g7       = pentium4 pentium4m athlon athlon-tbird athlon-4 athlon-xp
+                     athlon-mp $(.cpu-type-em64t) $(.cpu-type-amd64) ;
+.cpu-type-itanium  = itanium itanium1 merced ;
+.cpu-type-itanium2 = itanium2 mckinley ;
+
+
+# Known toolset versions, in order of preference.
+.known-versions = 10.0 10.0express 9.0 9.0express 8.0 8.0express 7.1 7.1toolkit 7.0 6.0 ;
+
+# Version aliases.
+.version-alias-6 = 6.0 ;
+.version-alias-6.5 = 6.0 ;
+.version-alias-7 = 7.0 ;
+.version-alias-8 = 8.0 ;
+.version-alias-9 = 9.0 ;
+.version-alias-10 = 10.0 ;
+
+# Names of registry keys containing the Visual C++ installation path (relative
+# to "HKEY_LOCAL_MACHINE\SOFTWARE\\Microsoft").
+.version-6.0-reg = "VisualStudio\\6.0\\Setup\\Microsoft Visual C++" ;
+.version-7.0-reg = "VisualStudio\\7.0\\Setup\\VC" ;
+.version-7.1-reg = "VisualStudio\\7.1\\Setup\\VC" ;
+.version-8.0-reg = "VisualStudio\\8.0\\Setup\\VC" ;
+.version-8.0express-reg = "VCExpress\\8.0\\Setup\\VC" ;
+.version-9.0-reg = "VisualStudio\\9.0\\Setup\\VC" ;
+.version-9.0express-reg = "VCExpress\\9.0\\Setup\\VC" ;
+.version-10.0-reg = "VisualStudio\\10.0\\Setup\\VC" ;
+.version-10.0express-reg = "VCExpress\\10.0\\Setup\\VC" ;
+
+# Visual C++ Toolkit 2003 does not store its installation path in the registry.
+# The environment variable 'VCToolkitInstallDir' and the default installation
+# path will be checked instead.
+.version-7.1toolkit-path    = "Microsoft Visual C++ Toolkit 2003" "bin" ;
+.version-7.1toolkit-env     = VCToolkitInstallDir ;
+
+# Path to the folder containing "cl.exe" relative to the value of the
+# corresponding environment variable.
+.version-7.1toolkit-envpath = "bin" ;
+
+
+# Auto-detect all the available msvc installations on the system.
+auto-detect-toolset-versions ;
+
+
+# And finally trigger the actual Boost Build toolset registration.
+register-toolset ;
diff --git a/jam-files/boost-build/tools/notfile.jam b/jam-files/boost-build/tools/notfile.jam
new file mode 100644
index 00000000..97a5b0e8
--- /dev/null
+++ b/jam-files/boost-build/tools/notfile.jam
@@ -0,0 +1,74 @@
+#  Copyright (c) 2005 Vladimir Prus.
+#
+#  Use, modification and distribution is subject to the Boost Software
+#  License Version 1.0. (See accompanying file LICENSE_1_0.txt or
+#  http://www.boost.org/LICENSE_1_0.txt)
+
+import "class" : new ;
+import generators ;
+import project ;
+import targets ;
+import toolset ;
+import type ;
+
+
+type.register NOTFILE_MAIN ;
+
+
+class notfile-generator : generator
+{
+    rule __init__ ( * : * )
+    {
+        generator.__init__ $(1) : $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ;
+    }
+
+    rule run ( project name ? : property-set : sources * : multiple ? )
+    {
+        local action ;
+        local action-name = [ $(property-set).get <action> ] ;
+
+        local m = [ MATCH ^@(.*) : $(action-name) ] ;
+
+        if $(m)
+        {
+            action = [ new action $(sources) : $(m[1])
+              : $(property-set) ] ;
+        }
+        else
+        {
+            action = [ new action $(sources) : notfile.run
+              : $(property-set) ] ;
+        }
+        return [ virtual-target.register 
+            [ new notfile-target $(name) : $(project) : $(action) ] ] ;
+    }
+}
+
+
+generators.register [ new notfile-generator notfile.main : : NOTFILE_MAIN ] ;
+
+
+toolset.flags notfile.run ACTION : <action> ;
+
+
+actions run
+{
+    $(ACTION)
+}
+
+
+rule notfile ( target-name : action + : sources * : requirements * : default-build * )
+{
+    local project = [ project.current ] ;
+
+    requirements += <action>$(action) ;
+
+    targets.main-target-alternative
+        [ new typed-target $(target-name) : $(project) : NOTFILE_MAIN
+            : [ targets.main-target-sources $(sources) : $(target-name) ]
+            : [ targets.main-target-requirements $(requirements) : $(project) ]
+            : [ targets.main-target-default-build $(default-build) : $(project) ]
+        ] ;
+}
+
+IMPORT $(__name__) : notfile : : notfile ;
diff --git a/jam-files/boost-build/tools/notfile.py b/jam-files/boost-build/tools/notfile.py
new file mode 100644
index 00000000..afbf68fb
--- /dev/null
+++ b/jam-files/boost-build/tools/notfile.py
@@ -0,0 +1,51 @@
+# Status: ported.
+# Base revision: 64429.
+#
+#  Copyright (c) 2005-2010 Vladimir Prus.
+#
+#  Use, modification and distribution is subject to the Boost Software
+#  License Version 1.0. (See accompanying file LICENSE_1_0.txt or
+#  http://www.boost.org/LICENSE_1_0.txt)
+
+
+import b2.build.type as type
+import b2.build.generators as generators
+import b2.build.virtual_target as virtual_target
+import b2.build.toolset as toolset
+import b2.build.targets as targets
+
+from b2.manager import get_manager
+from b2.util import bjam_signature
+
+type.register("NOTFILE_MAIN")
+
+class NotfileGenerator(generators.Generator):
+
+    def run(self, project, name, ps, sources):
+        pass
+        action_name = ps.get('action')[0]
+        if action_name[0] == '@':
+            action = virtual_target.Action(get_manager(), sources, action_name[1:], ps)
+        else:
+            action = virtual_target.Action(get_manager(), sources, "notfile.run", ps)
+
+        return [get_manager().virtual_targets().register(
+            virtual_target.NotFileTarget(name, project, action))]
+
+generators.register(NotfileGenerator("notfile.main", False, [], ["NOTFILE_MAIN"]))
+
+toolset.flags("notfile.run", "ACTION", [], ["<action>"])
+
+get_manager().engine().register_action("notfile.run", "$(ACTION)")
+
+@bjam_signature((["target_name"], ["action"], ["sources", "*"], ["requirements", "*"],
+                 ["default_build", "*"]))
+def notfile(target_name, action, sources, requirements, default_build):
+
+    requirements.append("<action>" + action)
+
+    return targets.create_typed_metatarget(target_name, "NOTFILE_MAIN", sources, requirements,
+                                           default_build, [])
+
+
+get_manager().projects().add_rule("notfile", notfile)
diff --git a/jam-files/boost-build/tools/package.jam b/jam-files/boost-build/tools/package.jam
new file mode 100644
index 00000000..198c2231
--- /dev/null
+++ b/jam-files/boost-build/tools/package.jam
@@ -0,0 +1,165 @@
+# Copyright (c) 2005 Vladimir Prus.
+# Copyright 2006 Rene Rivera.
+#
+# Use, modification and distribution is subject to the Boost Software
+# License Version 1.0. (See accompanying file LICENSE_1_0.txt or
+# http://www.boost.org/LICENSE_1_0.txt)
+
+# Provides mechanism for installing whole packages into a specific directory
+# structure. This is opposed to the 'install' rule, that installs a number of
+# targets to a single directory, and does not care about directory structure at
+# all.
+
+# Example usage:
+#
+#   package.install boost : <properties>
+#                         : <binaries>
+#                         : <libraries>
+#                         : <headers>
+#                         ;
+#
+# This will install binaries, libraries and headers to the 'proper' location,
+# given by command line options --prefix, --exec-prefix, --bindir, --libdir and
+# --includedir.
+#
+# The rule is just a convenient wrapper, avoiding the need to define several
+# 'install' targets.
+#
+# The only install-related feature is <install-source-root>. It will apply to
+# headers only and if present, paths of headers relatively to source root will
+# be retained after installing. If it is not specified, then "." is assumed, so
+# relative paths in headers are always preserved.
+
+import "class" : new ;
+import option ;
+import project ;
+import feature ;
+import property ;
+import stage ;
+import targets ;
+import modules ;
+
+feature.feature install-default-prefix : : free incidental ;
+
+rule install ( name package-name ? : requirements * : binaries * : libraries * : headers * )
+{
+    package-name ?= $(name) ;
+    if [ MATCH --prefix=(.*) : [ modules.peek : ARGV ] ]
+    {
+        # If --prefix is explicitly specified on the command line,
+        # then we need wipe away any settings of libdir/includir that
+        # is specified via options in config files.
+        option.set bindir : ;
+        option.set libdir : ;
+        option.set includedir : ;
+    }
+            
+    # If <install-source-root> is not specified, all headers are installed to
+    # prefix/include, no matter what their relative path is. Sometimes that is
+    # what is needed.
+    local install-source-root = [ property.select <install-source-root> :
+        $(requirements) ] ;
+    install-source-root = $(install-source-root:G=) ;
+    requirements = [ property.change $(requirements) : <install-source-root> ] ;
+
+    local install-header-subdir = [ property.select <install-header-subdir> :
+        $(requirements) ] ;
+    install-header-subdir = /$(install-header-subdir:G=) ;
+    install-header-subdir ?= "" ;
+    requirements = [ property.change $(requirements) : <install-header-subdir> ]
+        ;
+
+    # First, figure out all locations. Use the default if no prefix option
+    # given.
+    local prefix = [ get-prefix $(name) : $(requirements) ] ;
+
+    # Architecture dependent files.
+    local exec-locate = [ option.get exec-prefix : $(prefix) ] ;
+
+    # Binaries.
+    local bin-locate = [ option.get bindir : $(prefix)/bin ] ;
+
+    # Object code libraries.
+    local lib-locate = [ option.get libdir : $(prefix)/lib ] ;
+
+    # Source header files.
+    local include-locate = [ option.get includedir : $(prefix)/include ] ;
+
+    stage.install $(name)-bin : $(binaries) : $(requirements)
+        <location>$(bin-locate) ;
+    alias $(name)-lib : $(name)-lib-shared $(name)-lib-static ;
+    
+    # Since the install location of shared libraries differs on universe
+    # and cygwin, use target alternatives to make different targets.
+    # We should have used indirection conditioanl requirements, but it's
+    # awkward to pass bin-locate and lib-locate from there to another rule.
+    alias $(name)-lib-shared : $(name)-lib-shared-universe ;
+    alias $(name)-lib-shared : $(name)-lib-shared-cygwin : <target-os>cygwin ;
+    
+    # For shared libraries, we install both explicitly specified one and the
+    # shared libraries that the installed executables depend on.
+    stage.install $(name)-lib-shared-universe : $(binaries) $(libraries) : $(requirements)
+      <location>$(lib-locate) <install-dependencies>on <install-type>SHARED_LIB ;
+    stage.install $(name)-lib-shared-cygwin : $(binaries) $(libraries) : $(requirements)
+      <location>$(bin-locate) <install-dependencies>on <install-type>SHARED_LIB ;
+
+    # For static libraries, we do not care about executable dependencies, since
+    # static libraries are already incorporated into them.
+    stage.install $(name)-lib-static : $(libraries) : $(requirements)
+        <location>$(lib-locate) <install-dependencies>on <install-type>STATIC_LIB ;
+    stage.install $(name)-headers : $(headers) : $(requirements)
+        <location>$(include-locate)$(install-header-subdir)
+        <install-source-root>$(install-source-root) ;
+    alias $(name) : $(name)-bin $(name)-lib $(name)-headers ;
+
+    local c = [ project.current ] ;
+    local project-module = [ $(c).project-module ] ;
+    module $(project-module)
+    {
+        explicit $(1)-bin $(1)-lib $(1)-headers $(1) $(1)-lib-shared $(1)-lib-static 
+          $(1)-lib-shared-universe $(1)-lib-shared-cygwin ;
+    }
+}
+
+rule install-data ( target-name : package-name : data * : requirements * )
+{
+    package-name ?= target-name ;
+    if [ MATCH --prefix=(.*) : [ modules.peek : ARGV ] ]
+    {
+        # If --prefix is explicitly specified on the command line,
+        # then we need wipe away any settings of datarootdir
+        option.set datarootdir : ;
+    }   
+    
+    local prefix = [ get-prefix $(package-name) : $(requirements) ] ;
+    local datadir = [ option.get datarootdir : $(prefix)/share ] ;
+
+    stage.install $(target-name) 
+        : $(data)
+        : $(requirements) <location>$(datadir)/$(package-name)
+        ;
+    
+    local c = [ project.current ] ;
+    local project-module = [ $(c).project-module ] ;
+    module $(project-module)
+    {
+        explicit $(1) ;
+    }
+}
+
+local rule get-prefix ( package-name : requirements * )
+{
+    local prefix = [ option.get prefix : [ property.select
+        <install-default-prefix> : $(requirements) ] ] ;
+    prefix = $(prefix:G=) ;
+    requirements = [ property.change $(requirements) : <install-default-prefix>
+        ] ;
+    # Or some likely defaults if neither is given.
+    if ! $(prefix)
+    {
+        if [ modules.peek : NT ] { prefix = C:\\$(package-name) ; }
+        else if [ modules.peek : UNIX ] { prefix = /usr/local ; }        
+    }
+    return $(prefix) ;
+}           
+
diff --git a/jam-files/boost-build/tools/package.py b/jam-files/boost-build/tools/package.py
new file mode 100644
index 00000000..aa081b4f
--- /dev/null
+++ b/jam-files/boost-build/tools/package.py
@@ -0,0 +1,168 @@
+# Status: ported
+# Base revision: 64488
+#
+# Copyright (c) 2005, 2010 Vladimir Prus.
+# Copyright 2006 Rene Rivera.
+#
+# Use, modification and distribution is subject to the Boost Software
+# License Version 1.0. (See accompanying file LICENSE_1_0.txt or
+# http://www.boost.org/LICENSE_1_0.txt)
+
+# Provides mechanism for installing whole packages into a specific directory
+# structure. This is opposed to the 'install' rule, that installs a number of
+# targets to a single directory, and does not care about directory structure at
+# all.
+
+# Example usage:
+#
+#   package.install boost : <properties>
+#                         : <binaries>
+#                         : <libraries>
+#                         : <headers>
+#                         ;
+#
+# This will install binaries, libraries and headers to the 'proper' location,
+# given by command line options --prefix, --exec-prefix, --bindir, --libdir and
+# --includedir.
+#
+# The rule is just a convenient wrapper, avoiding the need to define several
+# 'install' targets.
+#
+# The only install-related feature is <install-source-root>. It will apply to
+# headers only and if present, paths of headers relatively to source root will
+# be retained after installing. If it is not specified, then "." is assumed, so
+# relative paths in headers are always preserved.
+
+import b2.build.feature as feature
+import b2.build.property as property
+import b2.util.option as option
+import b2.tools.stage as stage
+
+from b2.build.alias import alias
+
+from b2.manager import get_manager
+
+from b2.util import bjam_signature
+from b2.util.utility import ungrist
+
+
+import os
+
+feature.feature("install-default-prefix", [], ["free", "incidental"])
+
+@bjam_signature((["name", "package_name", "?"], ["requirements", "*"],
+                 ["binaries", "*"], ["libraries", "*"], ["headers", "*"]))
+def install(name, package_name=None, requirements=[], binaries=[], libraries=[], headers=[]):
+
+    requirements = requirements[:]
+    binaries = binaries[:]
+    libraries
+
+    if not package_name:
+        package_name = name
+
+    if option.get("prefix"):
+        # If --prefix is explicitly specified on the command line,
+        # then we need wipe away any settings of libdir/includir that
+        # is specified via options in config files.
+        option.set("bindir", None)
+        option.set("libdir", None)
+        option.set("includedir", None)
+            
+    # If <install-source-root> is not specified, all headers are installed to
+    # prefix/include, no matter what their relative path is. Sometimes that is
+    # what is needed.
+    install_source_root = property.select('install-source-root', requirements)
+    if install_source_root:
+        requirements = property.change(requirements, 'install-source-root', None)
+            
+    install_header_subdir = property.select('install-header-subdir', requirements)
+    if install_header_subdir:
+        install_header_subdir = ungrist(install_header_subdir[0])
+        requirements = property.change(requirements, 'install-header-subdir', None)
+
+    # First, figure out all locations. Use the default if no prefix option
+    # given.
+    prefix = get_prefix(name, requirements)
+
+    # Architecture dependent files.
+    exec_locate = option.get("exec-prefix", prefix)
+
+    # Binaries.
+    bin_locate = option.get("bindir", os.path.join(prefix, "bin"))
+
+    # Object code libraries.
+    lib_locate = option.get("libdir", os.path.join(prefix, "lib"))
+
+    # Source header files.
+    include_locate = option.get("includedir", os.path.join(prefix, "include"))
+
+    stage.install(name + "-bin", binaries, requirements + ["<location>" + bin_locate])
+    
+    alias(name + "-lib", [name + "-lib-shared", name + "-lib-static"])
+    
+    # Since the install location of shared libraries differs on universe
+    # and cygwin, use target alternatives to make different targets.
+    # We should have used indirection conditioanl requirements, but it's
+    # awkward to pass bin-locate and lib-locate from there to another rule.
+    alias(name + "-lib-shared", [name + "-lib-shared-universe"])
+    alias(name + "-lib-shared", [name + "-lib-shared-cygwin"], ["<target-os>cygwin"])
+    
+    # For shared libraries, we install both explicitly specified one and the
+    # shared libraries that the installed executables depend on.
+    stage.install(name + "-lib-shared-universe", binaries + libraries,
+                  requirements + ["<location>" + lib_locate, "<install-dependencies>on",
+                                  "<install-type>SHARED_LIB"])
+    stage.install(name + "-lib-shared-cygwin", binaries + libraries,
+                  requirements + ["<location>" + bin_locate, "<install-dependencies>on",
+                                  "<install-type>SHARED_LIB"])
+
+    # For static libraries, we do not care about executable dependencies, since
+    # static libraries are already incorporated into them.
+    stage.install(name + "-lib-static", libraries, requirements +
+                  ["<location>" + lib_locate, "<install-dependencies>on", "<install-type>STATIC_LIB"])
+    stage.install(name + "-headers", headers, requirements \
+                  + ["<location>" + os.path.join(include_locate, s) for s in install_header_subdir]
+                  + install_source_root)
+
+    alias(name, [name + "-bin", name + "-lib", name + "-headers"])
+
+    pt = get_manager().projects().current()
+
+    for subname in ["bin", "lib", "headers", "lib-shared", "lib-static", "lib-shared-universe", "lib-shared-cygwin"]:
+        pt.mark_targets_as_explicit([name + "-" + subname])
+
+@bjam_signature((["target_name"], ["package_name"], ["data", "*"], ["requirements", "*"]))
+def install_data(target_name, package_name, data, requirements):
+    if not package_name:
+        package_name = target_name
+
+    if option.get("prefix"):
+        # If --prefix is explicitly specified on the command line,
+        # then we need wipe away any settings of datarootdir
+        option.set("datarootdir", None)
+    
+    prefix = get_prefix(package_name, requirements)
+    datadir = option.get("datarootdir", os.path.join(prefix, "share"))
+
+    stage.install(target_name, data,
+                  requirements + ["<location>" + os.path.join(datadir, package_name)])
+
+    get_manager().projects().current().mark_targets_as_explicit([target_name])
+
+def get_prefix(package_name, requirements):
+
+    specified = property.select("install-default-prefix", requirements)
+    if specified:
+        specified = ungrist(specified[0])
+    prefix = option.get("prefix", specified)
+    requirements = property.change(requirements, "install-default-prefix", None)    
+    # Or some likely defaults if neither is given.
+    if not prefix:
+        if os.name == "nt":
+            prefix = "C:\\" + package_name
+        elif os.name == "posix":
+            prefix = "/usr/local"
+
+    return prefix
+
diff --git a/jam-files/boost-build/tools/pathscale.jam b/jam-files/boost-build/tools/pathscale.jam
new file mode 100644
index 00000000..454e3454
--- /dev/null
+++ b/jam-files/boost-build/tools/pathscale.jam
@@ -0,0 +1,168 @@
+#  Copyright 2006 Noel Belcourt
+#  Distributed under the Boost Software License, Version 1.0.
+#    (See accompanying file LICENSE_1_0.txt or copy at
+#          http://www.boost.org/LICENSE_1_0.txt)
+
+import property ;
+import generators ;
+import toolset : flags ;
+import feature ;
+import type ;
+import common ;
+import fortran ;
+
+feature.extend toolset : pathscale ;
+toolset.inherit pathscale : unix ;
+generators.override pathscale.prebuilt : builtin.prebuilt ;
+generators.override pathscale.searched-lib-generator : searched-lib-generator ;
+
+# Documentation and toolchain description located
+# http://www.pathscale.com/docs.html
+
+rule init ( version ? : command * : options * ) 
+{
+  command = [ common.get-invocation-command pathscale : pathCC : $(command) 
+    : /opt/ekopath/bin ] ;
+  
+  # Determine the version
+  local command-string = $(command:J=" ") ;
+  if $(command)
+  {    
+      version ?= [ MATCH "^([0-9.]+)"
+          : [ SHELL "$(command-string) -dumpversion" ] ] ;
+  }
+  
+  local condition = [ common.check-init-parameters pathscale
+    : version $(version) ] ;
+
+  common.handle-options pathscale : $(condition) : $(command) : $(options) ;
+    
+  toolset.flags pathscale.compile.fortran90 OPTIONS $(condition) :
+    [ feature.get-values <fflags> : $(options) ] : unchecked ;
+
+  command_c = $(command_c[1--2]) $(command[-1]:B=pathcc) ;
+
+  toolset.flags pathscale CONFIG_C_COMMAND $(condition) : $(command_c) ;
+
+  # fortran support
+  local f-command = [ common.get-invocation-command pathscale : pathf90 : $(command) ] ;
+  local command_f = $(command_f[1--2]) $(f-command[-1]:B=pathf90) ;
+  local command_f90 = $(command_f[1--2]) $(f-command[-1]:B=pathf90) ;
+
+  toolset.flags pathscale CONFIG_F_COMMAND $(condition) : $(command_f) ;
+  toolset.flags pathscale CONFIG_F90_COMMAND $(condition) : $(command_f90) ;
+
+  # always link lib rt to resolve clock_gettime()
+  flags pathscale.link FINDLIBS-SA : rt : unchecked ;
+}
+
+# Declare generators
+generators.register-c-compiler pathscale.compile.c : C : OBJ : <toolset>pathscale ;
+generators.register-c-compiler pathscale.compile.c++ : CPP : OBJ : <toolset>pathscale ;
+generators.register-fortran-compiler pathscale.compile.fortran : FORTRAN : OBJ : <toolset>pathscale ;
+generators.register-fortran90-compiler pathscale.compile.fortran90 : FORTRAN90 : OBJ : <toolset>pathscale ;
+
+# Declare flags and actions for compilation
+flags pathscale.compile OPTIONS <optimization>off   : -O0 ;
+flags pathscale.compile OPTIONS <optimization>speed : -O3 ;
+flags pathscale.compile OPTIONS <optimization>space : -Os ;
+
+flags pathscale.compile OPTIONS <inlining>off  : -noinline ;
+flags pathscale.compile OPTIONS <inlining>on   : -inline ;
+flags pathscale.compile OPTIONS <inlining>full : -inline ;
+
+flags pathscale.compile OPTIONS <warnings>off           : -woffall ;
+flags pathscale.compile OPTIONS <warnings>on            : -Wall ;
+flags pathscale.compile OPTIONS <warnings>all           : -Wall -pedantic ;
+flags pathscale.compile OPTIONS <warnings-as-errors>on  : -Werror ;
+
+flags pathscale.compile OPTIONS <debug-symbols>on : -ggdb ;
+flags pathscale.compile OPTIONS <profiling>on     : -pg ;
+flags pathscale.compile OPTIONS <link>shared      : -fPIC ;
+flags pathscale.compile OPTIONS <address-model>32 : -m32 ;
+flags pathscale.compile OPTIONS <address-model>64 : -m64 ;
+
+flags pathscale.compile USER_OPTIONS <cflags> ;
+flags pathscale.compile.c++ USER_OPTIONS <cxxflags> ;
+flags pathscale.compile DEFINES <define> ;
+flags pathscale.compile INCLUDES <include> ;
+
+flags pathscale.compile.fortran USER_OPTIONS <fflags> ;
+flags pathscale.compile.fortran90 USER_OPTIONS <fflags> ;
+
+actions compile.c
+{
+    "$(CONFIG_C_COMMAND)" $(OPTIONS) $(USER_OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -c -o "$(<)" "$(>)"
+}
+
+actions compile.c++
+{
+    "$(CONFIG_COMMAND)" $(OPTIONS) $(USER_OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -c -o "$(<)" "$(>)"
+}
+
+actions compile.fortran
+{
+    "$(CONFIG_F_COMMAND)" $(OPTIONS) $(USER_OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -c -o "$(<)" "$(>)"
+}
+
+rule compile.fortran90 ( targets * : sources * : properties * )
+{
+  # the space rule inserts spaces between targets and it's necessary
+  SPACE on $(targets) = " " ;
+  # Serialize execution of the compile.fortran90 action
+  # F90 source must be compiled in a particular order so we
+  # serialize the build as a parallel F90 compile might fail
+  JAM_SEMAPHORE on $(targets) = <s>pathscale-f90-semaphore ;
+}
+
+actions compile.fortran90
+{
+    "$(CONFIG_F90_COMMAND)" $(OPTIONS) $(USER_OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -module $(<[1]:D) -c -o "$(<)" "$(>)"
+}
+
+# Declare flags and actions for linking
+flags pathscale.link OPTIONS <debug-symbols>on : -ggdb -rdynamic ;
+# Strip the binary when no debugging is needed
+flags pathscale.link OPTIONS <debug-symbols>off : -g0 ;
+flags pathscale.link OPTIONS <profiling>on : -pg ;
+flags pathscale.link USER_OPTIONS <linkflags> ;
+flags pathscale.link LINKPATH <library-path> ;
+flags pathscale.link FINDLIBS-ST <find-static-library> ;
+flags pathscale.link FINDLIBS-SA <find-shared-library> ;
+flags pathscale.link FINDLIBS-SA <threading>multi : pthread ;
+flags pathscale.link LIBRARIES <library-file> ;
+flags pathscale.link LINK-RUNTIME <runtime-link>static : static ;
+flags pathscale.link LINK-RUNTIME <runtime-link>shared : dynamic ;
+flags pathscale.link RPATH <dll-path> ;
+# On gcc, there are separate options for dll path at runtime and
+# link time. On Solaris, there's only one: -R, so we have to use
+# it, even though it's bad idea.
+flags pathscale.link RPATH <xdll-path> ;
+
+rule link ( targets * : sources * : properties * )
+{
+    SPACE on $(targets) = " " ;
+}
+
+actions link bind LIBRARIES
+{
+    "$(CONFIG_COMMAND)" $(OPTIONS) $(USER_OPTIONS) -L"$(LINKPATH)" -Wl,$(RPATH_OPTION:E=-R)$(SPACE)-Wl,"$(RPATH)" -o "$(<)" "$(>)" "$(LIBRARIES)" -l$(FINDLIBS-SA) -l$(FINDLIBS-ST)
+}
+
+# Slight mods for dlls
+rule link.dll ( targets * : sources * : properties * )
+{
+    SPACE on $(targets) = " " ;
+}
+
+actions link.dll bind LIBRARIES
+{
+    "$(CONFIG_COMMAND)" $(OPTIONS) $(USER_OPTIONS) -L"$(LINKPATH)" -Wl,$(RPATH_OPTION:E=-R)$(SPACE)-Wl,"$(RPATH)" -o "$(<)" -Wl,-soname$(SPACE)-Wl,$(<[1]:D=) -shared "$(>)" "$(LIBRARIES)" -l$(FINDLIBS-SA) -l$(FINDLIBS-ST)
+}
+
+# Declare action for creating static libraries
+# "$(CONFIG_COMMAND)" -ar -o "$(<)" "$(>)"
+actions piecemeal archive
+{
+    ar $(ARFLAGS) ru "$(<)" "$(>)"
+}
diff --git a/jam-files/boost-build/tools/pch.jam b/jam-files/boost-build/tools/pch.jam
new file mode 100644
index 00000000..0c6e98fa
--- /dev/null
+++ b/jam-files/boost-build/tools/pch.jam
@@ -0,0 +1,95 @@
+# Copyright (c) 2005 Reece H. Dunn.
+# Copyright 2006 Ilya Sokolov
+#
+# Use, modification and distribution is subject to the Boost Software
+# License Version 1.0. (See accompanying file LICENSE_1_0.txt or
+# http://www.boost.org/LICENSE_1_0.txt)
+
+##### Using Precompiled Headers (Quick Guide) #####
+#
+# Make precompiled mypch.hpp:
+#
+#    import pch ;
+#
+#    cpp-pch mypch
+#      : # sources
+#        mypch.hpp
+#      : # requiremnts
+#        <toolset>msvc:<source>mypch.cpp
+#      ;
+#
+# Add cpp-pch to sources:
+#
+#    exe hello
+#      : main.cpp hello.cpp mypch
+#      ;
+
+import "class" : new ;
+import type ;
+import feature ;
+import generators ;
+
+type.register     PCH : pch ;
+
+type.register   C_PCH : : PCH ;
+type.register CPP_PCH : : PCH ;
+
+# Control precompiled header (PCH) generation.
+feature.feature pch :
+      on
+      off
+    : propagated ;
+
+
+feature.feature pch-header : : free dependency ;
+feature.feature pch-file   : : free dependency ;
+
+# Base PCH generator. The 'run' method has the logic to prevent this generator
+# from being run unless it's being used for a top-level PCH target.
+class pch-generator : generator
+{
+    import property-set ;
+
+    rule action-class ( )
+    {
+        return compile-action ;
+    }
+
+    rule run ( project name ? : property-set : sources + )
+    {
+        if ! $(name)
+        {
+            # Unless this generator is invoked as the top-most generator for a
+            # main target, fail. This allows using 'H' type as input type for
+            # this generator, while preventing Boost.Build to try this generator
+            # when not explicitly asked for.
+            #
+            # One bad example is msvc, where pch generator produces both PCH
+            # target and OBJ target, so if there's any header generated (like by
+            # bison, or by msidl), we'd try to use pch generator to get OBJ from
+            # that H, which is completely wrong. By restricting this generator
+            # only to pch main target, such problem is solved.
+        }
+        else
+        {
+            local r = [ run-pch $(project) $(name)
+              : [ $(property-set).add-raw <define>BOOST_BUILD_PCH_ENABLED ]
+              : $(sources) ] ;
+            return [ generators.add-usage-requirements $(r)
+              : <define>BOOST_BUILD_PCH_ENABLED ] ;
+        }
+    }
+
+    # This rule must be overridden by the derived classes.
+    rule run-pch ( project name ? : property-set : sources + )
+    {
+    }
+}
+
+
+# NOTE: requirements are empty, default pch generator can be applied when
+# pch=off.
+generators.register
+    [ new dummy-generator pch.default-c-pch-generator   : :   C_PCH ] ;
+generators.register
+    [ new dummy-generator pch.default-cpp-pch-generator : : CPP_PCH ] ;
diff --git a/jam-files/boost-build/tools/pch.py b/jam-files/boost-build/tools/pch.py
new file mode 100644
index 00000000..21d3db09
--- /dev/null
+++ b/jam-files/boost-build/tools/pch.py
@@ -0,0 +1,83 @@
+# Status: Being ported by Steven Watanabe
+# Base revision: 47077
+#
+# Copyright (c) 2005 Reece H. Dunn.
+# Copyright 2006 Ilya Sokolov
+# Copyright (c) 2008 Steven Watanabe
+#
+# Use, modification and distribution is subject to the Boost Software
+# License Version 1.0. (See accompanying file LICENSE_1_0.txt or
+# http://www.boost.org/LICENSE_1_0.txt)
+
+##### Using Precompiled Headers (Quick Guide) #####
+#
+# Make precompiled mypch.hpp:
+#
+#    import pch ;
+#
+#    cpp-pch mypch
+#      : # sources
+#        mypch.hpp
+#      : # requiremnts
+#        <toolset>msvc:<source>mypch.cpp
+#      ;
+#
+# Add cpp-pch to sources:
+#
+#    exe hello
+#      : main.cpp hello.cpp mypch
+#      ;
+
+from b2.build import type, feature, generators
+
+type.register('PCH', ['pch'])
+type.register('C_PCH', [], 'PCH')
+type.register('CPP_PCH', [], 'PCH')
+
+# Control precompiled header (PCH) generation.
+feature.feature('pch',
+                ['on', 'off'],
+                ['propagated'])
+
+feature.feature('pch-header', [], ['free', 'dependency'])
+feature.feature('pch-file', [], ['free', 'dependency'])
+
+class PchGenerator(generators.Generator):
+    """
+        Base PCH generator. The 'run' method has the logic to prevent this generator
+        from being run unless it's being used for a top-level PCH target.
+    """
+    def action_class(self):
+        return 'compile-action'
+
+    def run(self, project, name, prop_set, sources):
+        if not name:
+            # Unless this generator is invoked as the top-most generator for a
+            # main target, fail. This allows using 'H' type as input type for
+            # this generator, while preventing Boost.Build to try this generator
+            # when not explicitly asked for.
+            #
+            # One bad example is msvc, where pch generator produces both PCH
+            # target and OBJ target, so if there's any header generated (like by
+            # bison, or by msidl), we'd try to use pch generator to get OBJ from
+            # that H, which is completely wrong. By restricting this generator
+            # only to pch main target, such problem is solved.
+            pass
+        else:
+            r = self.run_pch(project, name,
+                 prop_set.add_raw('<define>BOOST_BUILD_PCH_ENABLED'),
+                 sources)
+            return generators.add_usage_requirements(
+                r, ['<define>BOOST_BUILD_PCH_ENABLED'])
+
+    # This rule must be overridden by the derived classes.
+    def run_pch(self, project, name, prop_set, sources):
+        pass
+
+#FIXME: dummy-generator in builtins.jam needs to be ported.
+# NOTE: requirements are empty, default pch generator can be applied when
+# pch=off.
+###generators.register(
+###    [ new dummy-generator pch.default-c-pch-generator   : :   C_PCH ] ;
+###generators.register
+###    [ new dummy-generator pch.default-cpp-pch-generator : : CPP_PCH ] ;
diff --git a/jam-files/boost-build/tools/pgi.jam b/jam-files/boost-build/tools/pgi.jam
new file mode 100644
index 00000000..3a35c644
--- /dev/null
+++ b/jam-files/boost-build/tools/pgi.jam
@@ -0,0 +1,147 @@
+#  Copyright Noel Belcourt 2007.
+#  Distributed under the Boost Software License, Version 1.0.
+#    (See accompanying file LICENSE_1_0.txt or copy at
+#          http://www.boost.org/LICENSE_1_0.txt)
+
+import property ;
+import generators ;
+import os ;
+import toolset : flags ;
+import feature ;
+import fortran ;
+import type ;
+import common ;
+import gcc ;
+
+feature.extend toolset : pgi ;
+toolset.inherit pgi : unix ;
+generators.override pgi.prebuilt : builtin.lib-generator ;
+generators.override pgi.searched-lib-generator : searched-lib-generator ;
+
+# Documentation and toolchain description located
+# http://www.pgroup.com/resources/docs.htm
+
+rule init ( version ? : command * : options * ) 
+{
+  local condition = [ common.check-init-parameters pgi : version $(version) ] ;
+
+  local l_command = [ common.get-invocation-command pgi : pgCC : $(command) ] ;
+
+  common.handle-options pgi : $(condition) : $(l_command) : $(options) ;
+    
+  command_c = $(command_c[1--2]) $(l_command[-1]:B=cc) ;
+
+  toolset.flags pgi CONFIG_C_COMMAND $(condition) : $(command_c) ;
+
+  flags pgi.compile DEFINES $(condition) :
+    [ feature.get-values <define> : $(options) ] : unchecked ;
+
+  # IOV_MAX support
+  flags pgi.compile DEFINES $(condition) : __need_IOV_MAX : unchecked ;
+
+  # set link flags
+  flags pgi.link FINDLIBS-ST : [
+    feature.get-values <find-static-library> : $(options) ] : unchecked ;
+
+  # always link lib rt to resolve clock_gettime()
+  flags pgi.link FINDLIBS-SA : rt [
+    feature.get-values <find-shared-library> : $(options) ] : unchecked ;
+
+  gcc.init-link-flags pgi gnu $(condition) ;
+}
+
+# Declare generators
+generators.register-c-compiler pgi.compile.c : C : OBJ : <toolset>pgi ;
+generators.register-c-compiler pgi.compile.c++ : CPP : OBJ : <toolset>pgi ;
+generators.register-fortran-compiler pgi.compile.fortran : FORTRAN : OBJ : <toolset>pgi ;
+
+# Declare flags and actions for compilation
+flags pgi.compile OPTIONS : -Kieee ;
+flags pgi.compile OPTIONS <link>shared : -fpic -fPIC ;
+flags pgi.compile OPTIONS <debug-symbols>on : -gopt ;
+flags pgi.compile OPTIONS <profiling>on : -xprofile=tcov ;
+flags pgi.compile OPTIONS <optimization>speed : -fast -Mx,8,0x10000000 ;
+flags pgi.compile OPTIONS <optimization>space : -xO2 -xspace ;
+# flags pgi.compile OPTIONS <threading>multi : -mt ;
+
+flags pgi.compile OPTIONS <warnings>off : -Minform=severe ;
+flags pgi.compile OPTIONS <warnings>on : -Minform=warn ;
+
+flags pgi.compile.c++ OPTIONS <inlining>off : -INLINE:none ;
+
+flags pgi.compile OPTIONS <cflags> ;
+flags pgi.compile.c++ OPTIONS <cxxflags> ;
+flags pgi.compile DEFINES <define> ;
+flags pgi.compile INCLUDES <include> ;
+
+flags pgi.compile.fortran OPTIONS <fflags> ;
+
+actions compile.c
+{
+    "$(CONFIG_C_COMMAND)" $(OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -c -o "$(<)" "$(>)"
+}
+
+actions compile.c++
+{
+    "$(CONFIG_COMMAND)" $(OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -c -o "$(<)" "$(>)"
+}
+
+actions compile.fortran
+{
+    "$(CONFIG_F_COMMAND)" $(OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -c -o "$(<)" "$(>)"
+}
+
+# Declare flags and actions for linking
+flags pgi.link OPTIONS <debug-symbols>on : -gopt ;
+# Strip the binary when no debugging is needed
+flags pgi.link OPTIONS <debug-symbols>off : -s ;
+flags pgi.link OPTIONS <profiling>on : -xprofile=tcov ;
+flags pgi.link OPTIONS <linkflags> ;
+flags pgi.link OPTIONS <link>shared : -fpic -fPIC ;
+flags pgi.link LINKPATH <library-path> ;
+flags pgi.link FINDLIBS-ST <find-static-library> ;
+flags pgi.link FINDLIBS-SA <find-shared-library> ;
+flags pgi.link FINDLIBS-SA <threading>multi : pthread rt ;
+flags pgi.link LIBRARIES <library-file> ;
+flags pgi.link LINK-RUNTIME <runtime-link>static : static ;
+flags pgi.link LINK-RUNTIME <runtime-link>shared : dynamic ;
+flags pgi.link RPATH <dll-path> ;
+
+# On gcc, there are separate options for dll path at runtime and
+# link time. On Solaris, there's only one: -R, so we have to use
+# it, even though it's bad idea.
+flags pgi.link RPATH <xdll-path> ;
+
+rule link ( targets * : sources * : properties * )
+{
+    SPACE on $(targets) = " " ;
+}
+
+# reddish can only link statically and, somehow, the presence of -Bdynamic on the link line 
+# marks the executable as a dynamically linked exec even though no dynamic libraries are supplied.
+# Yod on redstorm refuses to load an executable that is dynamically linked.
+# removing the dynamic link options should get us where we need to be on redstorm.
+# "$(CONFIG_COMMAND)" $(OPTIONS) -L"$(LINKPATH)" -R"$(RPATH)" -o "$(<)" "$(>)" "$(LIBRARIES)" -Bdynamic -l$(FINDLIBS-SA) -Bstatic -l$(FINDLIBS-ST) -B$(LINK-RUNTIME)
+actions link bind LIBRARIES
+{
+    "$(CONFIG_COMMAND)" $(OPTIONS) -L"$(LINKPATH)" -R"$(RPATH)" -o "$(<)" "$(>)" "$(LIBRARIES)" -Bstatic -l$(FINDLIBS-ST) -Bdynamic -l$(FINDLIBS-SA) -B$(LINK-RUNTIME)
+}
+
+# Slight mods for dlls
+rule link.dll ( targets * : sources * : properties * )
+{
+    SPACE on $(targets) = " " ;
+}
+
+# "$(CONFIG_COMMAND)" $(OPTIONS) -L"$(LINKPATH)" -R"$(RPATH)" -o "$(<)" -h$(<[1]:D=) -G "$(>)" "$(LIBRARIES)" -Bdynamic -l$(FINDLIBS-SA) -Bstatic -l$(FINDLIBS-ST) -B$(LINK-RUNTIME)
+
+actions link.dll bind LIBRARIES
+{
+    "$(CONFIG_COMMAND)" $(OPTIONS) -shared -L"$(LINKPATH)" -R"$(RPATH)" -o "$(<)" "$(>)" -Wl,-h -Wl,$(<[1]:D=) "$(LIBRARIES)" -Bdynamic -l$(FINDLIBS-SA) -Bstatic -l$(FINDLIBS-ST) -B$(LINK-RUNTIME)
+}
+
+actions updated together piecemeal pgi.archive
+{
+    ar -rc$(ARFLAGS:E=) "$(<)" "$(>)"
+}
+
diff --git a/jam-files/boost-build/tools/python-config.jam b/jam-files/boost-build/tools/python-config.jam
new file mode 100644
index 00000000..40aa825b
--- /dev/null
+++ b/jam-files/boost-build/tools/python-config.jam
@@ -0,0 +1,27 @@
+#~ Copyright 2005 Rene Rivera.
+#~ Distributed under the Boost Software License, Version 1.0.
+#~ (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+# Automatic configuration for Python tools and librries. To use, just import this module.
+
+import os ;
+import toolset : using ;
+
+if [ os.name ] = NT
+{
+    for local R in 2.4 2.3 2.2
+    {
+        local python-path = [ W32_GETREG
+            "HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\$(R)\\InstallPath" ] ;
+        local python-version = $(R) ;
+        
+        if $(python-path)
+        {
+            if --debug-configuration in [ modules.peek : ARGV ]
+            {
+                ECHO "notice:" using python ":" $(python-version) ":" $(python-path) ;
+            }
+            using python : $(python-version) : $(python-path) ;
+        }
+    }
+}
diff --git a/jam-files/boost-build/tools/python.jam b/jam-files/boost-build/tools/python.jam
new file mode 100644
index 00000000..97a9f9a5
--- /dev/null
+++ b/jam-files/boost-build/tools/python.jam
@@ -0,0 +1,1267 @@
+# Copyright 2004 Vladimir Prus.
+# Distributed under the Boost Software License, Version 1.0. (See
+# accompanying file LICENSE_1_0.txt or copy at
+# http://www.boost.org/LICENSE_1_0.txt)
+
+# Support for Python and the the Boost.Python library.
+#
+# This module defines
+#
+# - a project 'python' with a target 'python' in it, that corresponds to the
+#   python library
+#
+# - a main target rule 'python-extension' which can be used to build a python
+#   extension.
+#
+# Extensions that use Boost.Python must explicitly link to it.
+
+import type ;
+import testing ;
+import generators ;
+import project ;
+import errors ;
+import targets ;
+import "class" : new ;
+import os ;
+import common ;
+import toolset ;
+import regex ;
+import numbers ;
+import string ;
+import property ;
+import sequence ;
+import path ;
+import feature ;
+import set ;
+import builtin ;
+import version ;
+
+
+# Make this module a project.
+project.initialize $(__name__) ;
+project python ;
+
+# Save the project so that if 'init' is called several times we define new
+# targets in the python project, not in whatever project we were called by.
+.project = [ project.current ] ;
+
+# Dynamic linker lib. Necessary to specify it explicitly on some platforms.
+lib dl ;
+# This contains 'openpty' function need by python. Again, on some system need to
+# pass this to linker explicitly.
+lib util ;
+# Python uses pthread symbols.
+lib pthread ;
+# Extra library needed by phtread on some platforms.
+lib rt ;
+
+# The pythonpath feature specifies additional elements for the PYTHONPATH
+# environment variable, set by run-pyd. For example, pythonpath can be used to
+# access Python modules that are part of the product being built, but are not
+# installed in the development system's default paths.
+feature.feature pythonpath : : free optional path ;
+
+# Initializes the Python toolset. Note that all parameters are optional.
+#
+# - version -- the version of Python to use. Should be in Major.Minor format,
+#   for example 2.3.  Do not include the subminor version.
+#
+# - cmd-or-prefix: Preferably, a command that invokes a Python interpreter.
+#   Alternatively, the installation prefix for Python libraries and includes. If
+#   empty, will be guessed from the version, the platform's installation
+#   patterns, and the python executables that can be found in PATH.
+#
+# - includes: the include path to Python headers. If empty, will be guessed.
+#
+# - libraries: the path to Python library binaries. If empty, will be guessed.
+#   On MacOS/Darwin, you can also pass the path of the Python framework.
+#
+# - condition: if specified, should be a set of properties that are matched
+#   against the build configuration when Boost.Build selects a Python
+#   configuration to use.
+#
+# - extension-suffix: A string to append to the name of extension modules before
+#   the true filename extension.  Ordinarily we would just compute this based on
+#   the value of the <python-debugging> feature. However ubuntu's python-dbg
+#   package uses the windows convention of appending _d to debug-build extension
+#   modules. We have no way of detecting ubuntu, or of probing python for the
+#   "_d" requirement, and if you configure and build python using
+#   --with-pydebug, you'll be using the standard *nix convention. Defaults to ""
+#   (or "_d" when targeting windows and <python-debugging> is set).
+#
+# Example usage:
+#
+#   using python : 2.3 ;
+#   using python : 2.3 : /usr/local/bin/python ;
+#
+rule init ( version ? : cmd-or-prefix ? : includes * : libraries ?
+    : condition * : extension-suffix ? )
+{
+    project.push-current $(.project) ;
+
+    debug-message Configuring python... ;
+    for local v in version cmd-or-prefix includes libraries condition
+    {
+        if $($(v))
+        {
+            debug-message "  user-specified "$(v): \"$($(v))\" ;
+        }
+    }
+
+    configure $(version) : $(cmd-or-prefix) : $(includes) : $(libraries) : $(condition) : $(extension-suffix) ;
+
+    project.pop-current ;
+}
+
+# A simpler version of SHELL that grabs stderr as well as stdout, but returns
+# nothing if there was an error.
+#
+local rule shell-cmd ( cmd )
+{
+    debug-message running command '$(cmd)" 2>&1"' ;
+    x = [ SHELL $(cmd)" 2>&1" : exit-status ] ;
+    if $(x[2]) = 0
+    {
+        return $(x[1]) ;
+    }
+    else
+    {
+        return ;
+    }
+}
+
+
+# Try to identify Cygwin symlinks. Invoking such a file directly as an NT
+# executable from a native Windows build of bjam would be fatal to the bjam
+# process. One /can/ invoke them through sh.exe or bash.exe, if you can prove
+# that those are not also symlinks. ;-)
+#
+# If a symlink is found returns non-empty; we try to extract the target of the
+# symlink from the file and return that.
+#
+# Note: 1. only works on NT  2. path is a native path.
+local rule is-cygwin-symlink ( path )
+{
+    local is-symlink = ;
+
+    # Look for a file with the given path having the S attribute set, as cygwin
+    # symlinks do. /-C means "do not use thousands separators in file sizes."
+    local dir-listing = [ shell-cmd "DIR /-C /A:S \""$(path)"\"" ] ;
+
+    if $(dir-listing)
+    {
+        # Escape any special regex characters in the base part of the path.
+        local base-pat = [ regex.escape $(path:D=) : ].[()*+?|\\$^ : \\ ] ;
+
+        # Extract the file's size from the directory listing.
+        local size-of-system-file = [ MATCH "([0-9]+) "$(base-pat) : $(dir-listing) : 1 ] ;
+
+        # If the file has a reasonably small size, look for the special symlink
+        # identification text.
+        if $(size-of-system-file) && [ numbers.less $(size-of-system-file) 1000 ]
+        {
+            local link = [ SHELL "FIND /OFF \"!<symlink>\" \""$(path)"\" 2>&1" ] ;
+            if $(link[2]) != 0
+            {
+                local nl = "
+
+" ;
+                is-symlink = [ MATCH ".*!<symlink>([^"$(nl)"]*)" : $(link[1]) : 1 ] ;
+                if $(is-symlink)
+                {
+                    is-symlink = [ *nix-path-to-native $(is-symlink) ] ;
+                    is-symlink = $(is-symlink:R=$(path:D)) ;
+                }
+
+            }
+        }
+    }
+    return $(is-symlink) ;
+}
+
+
+# Append ext to each member of names that does not contain '.'.
+#
+local rule default-extension ( names * : ext * )
+{
+    local result ;
+    for local n in $(names)
+    {
+        switch $(n)
+        {
+            case *.* : result += $(n) ;
+            case * : result += $(n)$(ext) ;
+        }
+    }
+    return $(result) ;
+}
+
+
+# Tries to determine whether invoking "cmd" would actually attempt to launch a
+# cygwin symlink.
+#
+# Note: only works on NT.
+#
+local rule invokes-cygwin-symlink ( cmd )
+{
+    local dirs = $(cmd:D) ;
+    if ! $(dirs)
+    {
+        dirs = . [ os.executable-path ] ;
+    }
+    local base = [ default-extension $(cmd:D=) : .exe .cmd .bat ] ;
+    local paths = [ GLOB $(dirs) : $(base) ] ;
+    if $(paths)
+    {
+        # Make sure we have not run into a Cygwin symlink. Invoking such a file
+        # as an NT executable would be fatal for the bjam process.
+        return [ is-cygwin-symlink $(paths[1]) ] ;
+    }
+}
+
+
+local rule debug-message ( message * )
+{
+    if --debug-configuration in [ modules.peek : ARGV ]
+    {
+        ECHO notice: [python-cfg] $(message) ;
+    }
+}
+
+
+# Like W32_GETREG, except prepend HKEY_CURRENT_USER\SOFTWARE and
+# HKEY_LOCAL_MACHINE\SOFTWARE to the first argument, returning the first result
+# found. Also accounts for the fact that on 64-bit machines, 32-bit software has
+# its own area, under SOFTWARE\Wow6432node.
+#
+local rule software-registry-value ( path : data ? )
+{
+    local result ;
+    for local root in HKEY_CURRENT_USER HKEY_LOCAL_MACHINE
+    {
+        for local x64elt in "" Wow6432node\\ # Account for 64-bit windows
+        {
+            if ! $(result)
+            {
+                result = [ W32_GETREG $(root)\\SOFTWARE\\$(x64elt)$(path) : $(data) ] ;
+            }
+        }
+
+    }
+    return $(result) ;
+}
+
+
+.windows-drive-letter-re = ^([A-Za-z]):[\\/](.*) ;
+.cygwin-drive-letter-re = ^/cygdrive/([a-z])/(.*) ;
+
+.working-directory = [ PWD ] ;
+.working-drive-letter = [ SUBST $(.working-directory) $(.windows-drive-letter-re) $1 ] ;
+.working-drive-letter ?= [ SUBST $(.working-directory) $(.cygwin-drive-letter-re) $1 ] ;
+
+
+local rule windows-to-cygwin-path ( path )
+{
+    # If path is rooted with a drive letter, rewrite it using the /cygdrive
+    # mountpoint.
+    local p = [ SUBST $(path:T) $(.windows-drive-letter-re) /cygdrive/$1/$2 ] ;
+
+    # Else if path is rooted without a drive letter, use the working directory.
+    p ?= [ SUBST $(path:T) ^/(.*) /cygdrive/$(.working-drive-letter:L)/$2 ] ;
+
+    # Else return the path unchanged.
+    return $(p:E=$(path:T)) ;
+}
+
+
+# :W only works in Cygwin builds of bjam.  This one works on NT builds as well.
+#
+local rule cygwin-to-windows-path ( path )
+{
+    path = $(path:R="") ; # strip any trailing slash
+
+    local drive-letter = [ SUBST $(path) $(.cygwin-drive-letter-re) $1:/$2 ] ;
+    if $(drive-letter)
+    {
+        path = $(drive-letter) ;
+    }
+    else if $(path:R=/x) = $(path) # already rooted?
+    {
+        # Look for a cygwin mount that includes each head sequence in $(path).
+        local head = $(path) ;
+        local tail = "" ;
+
+        while $(head)
+        {
+            local root = [ software-registry-value
+                "Cygnus Solutions\\Cygwin\\mounts v2\\"$(head) : native ] ;
+
+            if $(root)
+            {
+                path = $(tail:R=$(root)) ;
+                head = ;
+            }
+            tail = $(tail:R=$(head:D=)) ;
+
+            if $(head) = /
+            {
+                head = ;
+            }
+            else
+            {
+                head = $(head:D) ;
+            }
+        }
+    }
+    return [ regex.replace $(path:R="") / \\ ] ;
+}
+
+
+# Convert a *nix path to native.
+#
+local rule *nix-path-to-native ( path )
+{
+    if [ os.name ] = NT
+    {
+        path = [ cygwin-to-windows-path $(path) ] ;
+    }
+    return $(path) ;
+}
+
+
+# Convert an NT path to native.
+#
+local rule windows-path-to-native ( path )
+{
+    if [ os.name ] = NT
+    {
+        return $(path) ;
+    }
+    else
+    {
+        return [ windows-to-cygwin-path $(path) ] ;
+    }
+}
+
+
+# Return nonempty if path looks like a windows path, i.e. it starts with a drive
+# letter or contains backslashes.
+#
+local rule guess-windows-path ( path )
+{
+    return [ SUBST $(path) ($(.windows-drive-letter-re)|.*([\\]).*) $1 ] ;
+}
+
+
+local rule path-to-native ( paths * )
+{
+    local result ;
+
+    for local p in $(paths)
+    {
+        if [ guess-windows-path $(p) ]
+        {
+            result += [ windows-path-to-native $(p) ] ;
+        }
+        else
+        {
+            result += [ *nix-path-to-native $(p:T) ] ;
+        }
+    }
+    return $(result) ;
+}
+
+
+# Validate the version string and extract the major/minor part we care about.
+#
+local rule split-version ( version )
+{
+    local major-minor = [ MATCH ^([0-9]+)\.([0-9]+)(.*)$ : $(version) : 1 2 3 ] ;
+    if ! $(major-minor[2]) || $(major-minor[3])
+    {
+        ECHO "Warning: \"using python\" expects a two part (major, minor) version number; got" $(version) instead ;
+
+        # Add a zero to account for the missing digit if necessary.
+        major-minor += 0 ;
+    }
+
+    return $(major-minor[1]) $(major-minor[2]) ;
+}
+
+
+# Build a list of versions from 3.0 down to 1.5. Because bjam can not enumerate
+# registry sub-keys, we have no way of finding a version with a 2-digit minor
+# version, e.g. 2.10 -- let us hope that never happens.
+#
+.version-countdown = ;
+for local v in [ numbers.range 15 30 ]
+{
+    .version-countdown = [ SUBST $(v) (.)(.*) $1.$2 ] $(.version-countdown) ;
+}
+
+
+local rule windows-installed-pythons ( version ? )
+{
+    version ?= $(.version-countdown) ;
+    local interpreters ;
+
+    for local v in $(version)
+    {
+        local install-path = [
+          software-registry-value "Python\\PythonCore\\"$(v)"\\InstallPath" ] ;
+
+        if $(install-path)
+        {
+            install-path = [ windows-path-to-native $(install-path) ] ;
+            debug-message Registry indicates Python $(v) installed at \"$(install-path)\" ;
+        }
+
+        interpreters += $(:E=python:R=$(install-path)) ;
+    }
+    return $(interpreters) ;
+}
+
+
+local rule darwin-installed-pythons ( version ? )
+{
+    version ?= $(.version-countdown) ;
+
+    local prefix
+      = [ GLOB /System/Library/Frameworks /Library/Frameworks
+          : Python.framework ] ;
+
+    return $(prefix)/Versions/$(version)/bin/python ;
+}
+
+
+# Assume "python-cmd" invokes a python interpreter and invoke it to extract all
+# the information we care about from its "sys" module. Returns void if
+# unsuccessful.
+#
+local rule probe ( python-cmd )
+{
+    # Avoid invoking a Cygwin symlink on NT.
+    local skip-symlink ;
+    if [ os.name ] = NT
+    {
+        skip-symlink = [ invokes-cygwin-symlink $(python-cmd) ] ;
+    }
+
+    if $(skip-symlink)
+    {
+        debug-message -------------------------------------------------------------------- ;
+        debug-message \"$(python-cmd)\" would attempt to invoke a Cygwin symlink, ;
+        debug-message causing a bjam built for Windows to hang. ;
+        debug-message ;
+        debug-message If you intend to target a Cygwin build of Python, please ;
+        debug-message replace the path to the link with the path to a real executable ;
+        debug-message (guessing: \"$(skip-symlink)\") "in" your 'using python' line ;
+        debug-message "in" user-config.jam or site-config.jam. Do not forget to escape ;
+        debug-message backslashes ;
+        debug-message -------------------------------------------------------------------- ;
+    }
+    else
+    {
+        # Prepare a List of Python format strings and expressions that can be
+        # used to print the constants we want from the sys module.
+
+        # We do not really want sys.version since that is a complicated string,
+        # so get the information from sys.version_info instead.
+        local format = "version=%d.%d" ;
+        local exprs = "version_info[0]" "version_info[1]" ;
+
+        for local s in $(sys-elements[2-])
+        {
+            format += $(s)=%s ;
+            exprs += $(s) ;
+        }
+
+        # Invoke Python and ask it for all those values.
+        if [ version.check-jam-version 3 1 17 ] || ( [ os.name ] != NT )
+        {
+            # Prior to version 3.1.17 Boost Jam's SHELL command did not support
+            # quoted commands correctly on Windows. This means that on that
+            # platform we do not support using a Python command interpreter
+            # executable whose path contains a space character.
+            python-cmd = \"$(python-cmd)\" ;
+        }
+        local full-cmd =
+            $(python-cmd)" -c \"from sys import *; print('"$(format:J=\\n)"' % ("$(exprs:J=,)"))\"" ;
+
+        local output = [ shell-cmd $(full-cmd) ] ;
+        if $(output)
+        {
+            # Parse the output to get all the results.
+            local nl = "
+
+" ;
+            for s in $(sys-elements)
+            {
+                # These variables are expected to be declared local in the
+                # caller, so Jam's dynamic scoping will set their values there.
+                sys.$(s) = [ SUBST $(output) \\<$(s)=([^$(nl)]+) $1 ] ;
+            }
+        }
+        return $(output) ;
+    }
+}
+
+
+# Make sure the "libraries" and "includes" variables (in an enclosing scope)
+# have a value based on the information given.
+#
+local rule compute-default-paths ( target-os : version ? : prefix ? :
+    exec-prefix ? )
+{
+    exec-prefix ?= $(prefix) ;
+
+    if $(target-os) = windows
+    {
+        # The exec_prefix is where you're supposed to look for machine-specific
+        # libraries.
+        local default-library-path = $(exec-prefix)\\libs ;
+        local default-include-path = $(:E=Include:R=$(prefix)) ;
+
+        # If the interpreter was found in a directory called "PCBuild" or
+        # "PCBuild8," assume we're looking at a Python built from the source
+        # distro, and go up one additional level to the default root. Otherwise,
+        # the default root is the directory where the interpreter was found.
+
+        # We ask Python itself what the executable path is in case of
+        # intermediate symlinks or shell scripts.
+        local executable-dir = $(sys.executable:D) ;
+
+        if [ MATCH ^(PCBuild) : $(executable-dir:D=) ]
+        {
+            debug-message "This Python appears to reside in a source distribution;" ;
+            debug-message "prepending \""$(executable-dir)"\" to default library search path" ;
+
+            default-library-path = $(executable-dir) $(default-library-path) ;
+
+            default-include-path = $(:E=PC:R=$(executable-dir:D)) $(default-include-path) ;
+
+            debug-message "and \""$(default-include-path[1])"\" to default #include path" ;
+        }
+
+        libraries ?= $(default-library-path) ;
+        includes ?= $(default-include-path) ;
+    }
+    else
+    {
+        includes ?= $(prefix)/include/python$(version) ;
+
+        local lib = $(exec-prefix)/lib ;
+        libraries ?= $(lib)/python$(version)/config $(lib) ;
+    }
+}
+
+# The version of the python interpreter to use.
+feature.feature python : : propagated ;
+feature.feature python.interpreter : : free ;
+
+toolset.flags python.capture-output PYTHON : <python.interpreter> ;
+
+#
+# Support for Python configured --with-pydebug
+#
+feature.feature python-debugging : off on : propagated ;
+builtin.variant debug-python : debug : <python-debugging>on ;
+
+
+# Return a list of candidate commands to try when looking for a Python
+# interpreter. prefix is expected to be a native path.
+#
+local rule candidate-interpreters ( version ? : prefix ? : target-os )
+{
+    local bin-path = bin ;
+    if $(target-os) = windows
+    {
+        # On Windows, look in the root directory itself and, to work with the
+        # result of a build-from-source, the PCBuild directory.
+        bin-path = PCBuild8 PCBuild "" ;
+    }
+
+    bin-path = $(bin-path:R=$(prefix)) ;
+
+    if $(target-os) in windows darwin
+    {
+        return                                            # Search:
+            $(:E=python:R=$(bin-path))                    #   Relative to the prefix, if any
+            python                                        #   In the PATH
+            [ $(target-os)-installed-pythons $(version) ] #   Standard install locations
+        ;
+    }
+    else
+    {
+        # Search relative to the prefix, or if none supplied, in PATH.
+        local unversioned = $(:E=python:R=$(bin-path:E=)) ;
+
+        # If a version was specified, look for a python with that specific
+        # version appended before looking for one called, simply, "python"
+        return $(unversioned)$(version) $(unversioned) ;
+    }
+}
+
+
+# Compute system library dependencies for targets linking with static Python
+# libraries.
+#
+# On many systems, Python uses libraries such as pthreads or libdl. Since static
+# libraries carry no library dependency information of their own that the linker
+# can extract, these extra dependencies have to be given explicitly on the link
+# line of the client.  The information about these dependencies is packaged into
+# the "python" target below.
+#
+# Even where Python itself uses pthreads, it never allows extension modules to
+# be entered concurrently (unless they explicitly give up the interpreter lock).
+# Therefore, extension modules do not need the efficiency overhead of threadsafe
+# code as produced by <threading>multi, and we handle libpthread along with
+# other libraries here. Note: this optimization is based on an assumption that
+# the compiler generates link-compatible code in both the single- and
+# multi-threaded cases, and that system libraries do not change their ABIs
+# either.
+#
+# Returns a list of usage-requirements that link to the necessary system
+# libraries.
+#
+local rule system-library-dependencies ( target-os )
+{
+    switch $(target-os)
+    {
+        case s[uo][nl]* : # solaris, sun, sunos
+            # Add a librt dependency for the gcc toolset on SunOS (the sun
+            # toolset adds -lrt unconditionally). While this appears to
+            # duplicate the logic already in gcc.jam, it does not as long as
+            # we are not forcing <threading>multi.
+
+            # On solaris 10, distutils.sysconfig.get_config_var('LIBS') yields
+            # '-lresolv -lsocket -lnsl -lrt -ldl'. However, that does not seem
+            # to be the right list for extension modules. For example, on my
+            # installation, adding -ldl causes at least one test to fail because
+            # the library can not be found and removing it causes no failures.
+
+            # Apparently, though, we need to add -lrt for gcc.
+            return <toolset>gcc:<library>rt ;
+
+        case osf : return  <library>pthread <toolset>gcc:<library>rt ;
+
+        case qnx* : return ;
+        case darwin : return ;
+        case windows : return ;
+
+        case hpux : return  <library>rt ;
+        case *bsd : return  <library>pthread <toolset>gcc:<library>util ;
+
+        case aix : return  <library>pthread <library>dl ;
+
+        case * : return  <library>pthread <library>dl 
+            <toolset>gcc:<library>util <toolset-intel:platform>linux:<library>util ;
+    }
+}
+
+
+# Declare a target to represent Python's library.
+#
+local rule declare-libpython-target ( version ? : requirements * )
+{
+    # Compute the representation of Python version in the name of Python's
+    # library file.
+    local lib-version = $(version) ;
+    if <target-os>windows in $(requirements)
+    {
+        local major-minor = [ split-version $(version) ] ;
+        lib-version = $(major-minor:J="") ;
+        if <python-debugging>on in $(requirements)
+        {
+            lib-version = $(lib-version)_d ;
+        }
+    }
+
+    if ! $(lib-version)
+    {
+        ECHO *** warning: could not determine Python version, which will ;
+        ECHO *** warning: probably prevent us from linking with the python ;
+        ECHO *** warning: library.  Consider explicitly passing the version ;
+        ECHO *** warning: to 'using python'. ;
+    }
+
+    # Declare it.
+    lib python.lib : : <name>python$(lib-version) $(requirements) ;
+}
+
+
+# Implementation of init.
+local rule configure ( version ? : cmd-or-prefix ? : includes * : libraries ? :
+    condition * : extension-suffix ? )
+{
+    local prefix ;
+    local exec-prefix ;
+    local cmds-to-try ;
+    local interpreter-cmd ;
+
+    local target-os = [ feature.get-values target-os : $(condition) ] ;
+    target-os ?= [ feature.defaults target-os ] ;
+    target-os = $(target-os:G=) ;
+
+    if $(target-os) = windows && <python-debugging>on in $(condition)
+    {
+        extension-suffix ?= _d ;
+    }
+    extension-suffix ?= "" ;
+
+    # Normalize and dissect any version number.
+    local major-minor ;
+    if $(version)
+    {
+        major-minor = [ split-version $(version) ] ;
+        version = $(major-minor:J=.) ;
+    }
+
+    local cmds-to-try ;
+
+    if ! $(cmd-or-prefix) || [ GLOB $(cmd-or-prefix) : * ]
+    {
+        # If the user did not pass a command, whatever we got was a prefix.
+        prefix = $(cmd-or-prefix) ;
+        cmds-to-try = [ candidate-interpreters $(version) : $(prefix) : $(target-os) ] ;
+    }
+    else
+    {
+        # Work with the command the user gave us.
+        cmds-to-try = $(cmd-or-prefix) ;
+
+        # On Windows, do not nail down the interpreter command just yet in case
+        # the user specified something that turns out to be a cygwin symlink,
+        # which could bring down bjam if we invoke it.
+        if $(target-os) != windows
+        {
+            interpreter-cmd = $(cmd-or-prefix) ;
+        }
+    }
+
+    # Values to use in case we can not really find anything in the system.
+    local fallback-cmd = $(cmds-to-try[1]) ;
+    local fallback-version ;
+
+    # Anything left to find or check?
+    if ! ( $(interpreter-cmd) && $(includes) && $(libraries) )
+    {
+        # Values to be extracted from python's sys module. These will be set by
+        # the probe rule, above, using Jam's dynamic scoping.
+        local sys-elements = version platform prefix exec_prefix executable ;
+        local sys.$(sys-elements) ;
+
+        # Compute the string Python's sys.platform needs to match. If not
+        # targeting Windows or cygwin we will assume only native builds can
+        # possibly run, so we will not require a match and we leave sys.platform
+        # blank.
+        local platform ;
+        switch $(target-os)
+        {
+            case windows : platform = win32 ;
+            case cygwin : platform = cygwin ;
+        }
+
+        while $(cmds-to-try)
+        {
+            # Pop top command.
+            local cmd = $(cmds-to-try[1]) ;
+            cmds-to-try = $(cmds-to-try[2-]) ;
+
+            debug-message Checking interpreter command \"$(cmd)\"... ;
+            if [ probe $(cmd) ]
+            {
+                fallback-version ?= $(sys.version) ;
+
+                # Check for version/platform validity.
+                for local x in version platform
+                {
+                    if $($(x)) && $($(x)) != $(sys.$(x))
+                    {
+                        debug-message ...$(x) "mismatch (looking for"
+                            $($(x)) but found $(sys.$(x))")" ;
+                        cmd = ;
+                    }
+                }
+
+                if $(cmd)
+                {
+                    debug-message ...requested configuration matched! ;
+
+                    exec-prefix = $(sys.exec_prefix) ;
+
+                    compute-default-paths $(target-os) : $(sys.version) :
+                        $(sys.prefix) : $(sys.exec_prefix) ;
+
+                    version = $(sys.version) ;
+                    interpreter-cmd ?= $(cmd) ;
+                    cmds-to-try = ;  # All done.
+                }
+            }
+            else
+            {
+                debug-message ...does not invoke a working interpreter ;
+            }
+        }
+    }
+
+    # Anything left to compute?
+    if $(includes) && $(libraries)
+    {
+        .configured = true ;
+    }
+    else
+    {
+        version ?= $(fallback-version) ;
+        version ?= 2.5 ;
+        exec-prefix ?= $(prefix) ;
+        compute-default-paths $(target-os) : $(version) : $(prefix:E=) ;
+    }
+
+    if ! $(interpreter-cmd)
+    {
+        fallback-cmd ?= python ;
+        debug-message No working Python interpreter found. ;
+        if [ os.name ] != NT || ! [ invokes-cygwin-symlink $(fallback-cmd) ]
+        {
+            interpreter-cmd = $(fallback-cmd) ;
+            debug-message falling back to \"$(interpreter-cmd)\" ;
+        }
+    }
+
+    includes = [ path-to-native $(includes) ] ;
+    libraries = [ path-to-native $(libraries) ] ;
+
+    debug-message "Details of this Python configuration:" ;
+    debug-message "  interpreter command:" \"$(interpreter-cmd:E=<empty>)\" ;
+    debug-message "  include path:" \"$(includes:E=<empty>)\" ;
+    debug-message "  library path:" \"$(libraries:E=<empty>)\" ;
+    if $(target-os) = windows
+    {
+        debug-message "  DLL search path:" \"$(exec-prefix:E=<empty>)\" ;
+    }
+
+    #
+    # End autoconfiguration sequence.
+    #
+    local target-requirements = $(condition) ;
+
+    # Add the version, if any, to the target requirements.
+    if $(version)
+    {
+        if ! $(version) in [ feature.values python ]
+        {
+            feature.extend python : $(version) ;
+        }
+        target-requirements += <python>$(version:E=default) ;
+    }
+ 
+    target-requirements += <target-os>$(target-os) ;
+
+    # See if we can find a framework directory on darwin.
+    local framework-directory ;
+    if $(target-os) = darwin
+    {
+        # Search upward for the framework directory.
+        local framework-directory = $(libraries[-1]) ;
+        while $(framework-directory:D=) && $(framework-directory:D=) != Python.framework
+        {
+            framework-directory = $(framework-directory:D) ;
+        }
+
+        if $(framework-directory:D=) = Python.framework
+        {
+            debug-message framework directory is \"$(framework-directory)\" ;
+        }
+        else
+        {
+            debug-message "no framework directory found; using library path" ;
+            framework-directory = ;
+        }
+    }
+
+    local dll-path = $(libraries) ;
+
+    # Make sure that we can find the Python DLL on Windows.
+    if ( $(target-os) = windows ) && $(exec-prefix)
+    {
+        dll-path += $(exec-prefix) ;
+    }
+
+    #
+    # Prepare usage requirements.
+    #
+    local usage-requirements = [ system-library-dependencies $(target-os) ] ;
+    usage-requirements += <include>$(includes) <python.interpreter>$(interpreter-cmd) ;
+    if <python-debugging>on in $(condition)
+    {
+        if $(target-os) = windows
+        {
+            # In pyconfig.h, Py_DEBUG is set if _DEBUG is set. If we define
+            # Py_DEBUG we will get multiple definition warnings.
+            usage-requirements += <define>_DEBUG ;
+        }
+        else
+        {
+            usage-requirements += <define>Py_DEBUG ;
+        }
+    }
+
+    # Global, but conditional, requirements to give access to the interpreter
+    # for general utilities, like other toolsets, that run Python scripts.
+    toolset.add-requirements
+        $(target-requirements:J=,):<python.interpreter>$(interpreter-cmd) ;
+
+    # Register the right suffix for extensions.
+    register-extension-suffix $(extension-suffix) : $(target-requirements) ;
+
+    #
+    # Declare the "python" target. This should really be called
+    # python_for_embedding.
+    #
+
+    if $(framework-directory)
+    {
+        alias python
+          :
+          : $(target-requirements)
+          :
+          : $(usage-requirements) <framework>$(framework-directory)
+          ;
+    }
+    else
+    {
+        declare-libpython-target $(version) : $(target-requirements) ;
+
+        # This is an evil hack.  On, Windows, when Python is embedded, nothing
+        # seems to set up sys.path to include Python's standard library
+        # (http://article.gmane.org/gmane.comp.python.general/544986). The evil
+        # here, aside from the workaround necessitated by Python's bug, is that:
+        #
+        # a. we're guessing the location of the python standard library from the
+        #    location of pythonXX.lib
+        #
+        # b. we're hijacking the <testing.launcher> property to get the
+        #    environment variable set up, and the user may want to use it for
+        #    something else (e.g. launch the debugger).
+        local set-PYTHONPATH ;
+        if $(target-os) = windows
+        {
+            set-PYTHONPATH = [ common.prepend-path-variable-command PYTHONPATH :
+                $(libraries:D)/Lib ] ;
+        }
+
+        alias python
+          :
+          : $(target-requirements)
+          :
+            # Why python.lib must be listed here instead of along with the
+            # system libs is a mystery, but if we do not do it, on cygwin,
+            # -lpythonX.Y never appears in the command line (although it does on
+            # linux).
+          : $(usage-requirements)
+            <testing.launcher>$(set-PYTHONPATH)
+              <library-path>$(libraries) <library>python.lib
+          ;
+    }
+
+    # On *nix, we do not want to link either Boost.Python or Python extensions
+    # to libpython, because the Python interpreter itself provides all those
+    # symbols. If we linked to libpython, we would get duplicate symbols. So
+    # declare two targets -- one for building extensions and another for
+    # embedding.
+    #
+    # Unlike most *nix systems, Mac OS X's linker does not permit undefined
+    # symbols when linking a shared library. So, we still need to link against
+    # the Python framework, even when building extensions. Note that framework
+    # builds of Python always use shared libraries, so we do not need to worry
+    # about duplicate Python symbols.
+    if $(target-os) in windows cygwin darwin
+    {
+        alias python_for_extensions : python : $(target-requirements) ;
+    }
+    # On AIX we need Python extensions and Boost.Python to import symbols from
+    # the Python interpreter. Dynamic libraries opened with dlopen() do not
+    # inherit the symbols from the Python interpreter.
+    else if $(target-os) = aix
+    {
+        alias python_for_extensions
+            :
+            : $(target-requirements)
+            :
+            : $(usage-requirements) <linkflags>-Wl,-bI:$(libraries[1])/python.exp
+            ;
+    }
+    else
+    {
+        alias python_for_extensions
+            :
+            : $(target-requirements)
+            :
+            : $(usage-requirements)
+            ;
+    }
+}
+
+
+rule configured ( )
+{
+     return $(.configured) ;
+}
+
+
+type.register PYTHON_EXTENSION : : SHARED_LIB ;
+
+
+local rule register-extension-suffix ( root : condition * )
+{
+    local suffix ;
+
+    switch [ feature.get-values target-os : $(condition) ]
+    {
+        case windows : suffix = pyd ;
+        case cygwin : suffix = dll ;
+        case hpux :
+        {
+            if [ feature.get-values python : $(condition) ] in 1.5 1.6 2.0 2.1 2.2 2.3 2.4
+            {
+                suffix = sl ;
+            }
+            else
+            {
+                suffix = so ;
+            }
+        }
+        case * : suffix = so ;
+    }
+
+    type.set-generated-target-suffix PYTHON_EXTENSION : $(condition) : <$(root).$(suffix)> ;
+}
+
+
+# Unset 'lib' prefix for PYTHON_EXTENSION
+type.set-generated-target-prefix PYTHON_EXTENSION : : "" ;
+
+
+rule python-extension ( name : sources * : requirements * : default-build * :
+                        usage-requirements * )
+{
+    if [ configured ]
+    {
+        requirements += <use>/python//python_for_extensions ;
+    }
+    requirements += <suppress-import-lib>true ;
+
+    local project = [ project.current ] ;
+
+    targets.main-target-alternative
+        [ new typed-target $(name) : $(project) : PYTHON_EXTENSION
+            : [ targets.main-target-sources $(sources) : $(name) ]
+            : [ targets.main-target-requirements $(requirements) : $(project) ]
+            : [ targets.main-target-default-build $(default-build) : $(project) ]
+        ] ;
+}
+
+IMPORT python : python-extension : : python-extension ;
+
+rule py2to3
+{
+    common.copy $(>) $(<) ;
+    2to3 $(<) ;
+}
+
+actions 2to3
+{
+    2to3 -wn "$(<)"
+    2to3 -dwn "$(<)"
+}
+
+
+# Support for testing.
+type.register PY : py ;
+type.register RUN_PYD_OUTPUT ;
+type.register RUN_PYD : : TEST ;
+
+
+class python-test-generator : generator
+{
+    import set ;
+
+    rule __init__ ( * : * )
+    {
+        generator.__init__ $(1) : $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ;
+        self.composing = true ;
+    }
+
+    rule run ( project name ? : property-set : sources * : multiple ? )
+    {
+        local pyversion = [ $(property-set).get <python> ] ;
+        local python ;
+        local other-pythons ;
+    
+        # Make new target that converting Python source by 2to3 when running with Python 3.
+        local rule make-2to3-source ( source )
+        {
+            if $(pyversion) >= 3.0
+            {
+                local a = [ new action $(source) : python.py2to3 : $(property-set) ] ;
+                local t =  [ utility.basename [ $(s).name ] ] ;
+                local p = [ new file-target $(t) : PY : $(project) : $(a) ] ;
+                return $(p) ;
+            }
+            else
+            {
+                return $(source) ;
+            }
+        }
+
+        for local s in $(sources)
+        {
+            if [ $(s).type ] = PY
+            {
+                if ! $(python)
+                {
+                    # First Python source ends up on command line.
+                    python = [ make-2to3-source $(s) ] ;
+
+                }
+                else
+                {
+                    # Other Python sources become dependencies.
+                    other-pythons += [ make-2to3-source $(s) ] ;
+                }
+            }
+        }
+
+        local extensions ;
+        for local s in $(sources)
+        {
+            if [ $(s).type ] = PYTHON_EXTENSION
+            {
+                extensions += $(s) ;
+            }
+        }
+
+        local libs ;
+        for local s in $(sources)
+        {
+            if [ type.is-derived [ $(s).type ] LIB ]
+              && ! $(s) in $(extensions)
+            {
+                libs += $(s) ;
+            }
+        }
+
+        local new-sources ;
+        for local s in $(sources)
+        {
+            if [ type.is-derived [ $(s).type ] CPP ]
+            {
+                local name = [ utility.basename [ $(s).name ] ] ;
+                if $(name) = [ utility.basename [ $(python).name ] ]
+                {
+                    name = $(name)_ext ;
+                }
+                local extension = [ generators.construct $(project) $(name) :
+                  PYTHON_EXTENSION : $(property-set) : $(s) $(libs) ] ;
+
+                # The important part of usage requirements returned from
+                # PYTHON_EXTENSION generator are xdll-path properties that will
+                # allow us to find the python extension at runtime.
+                property-set = [ $(property-set).add $(extension[1]) ] ;
+
+                # Ignore usage requirements. We're a top-level generator and
+                # nobody is going to use what we generate.
+                new-sources += $(extension[2-]) ;
+            }
+        }
+
+        property-set = [ $(property-set).add-raw <dependency>$(other-pythons) ] ;
+
+        result = [ construct-result $(python) $(extensions) $(new-sources) :
+            $(project) $(name) : $(property-set) ] ;
+    }
+}
+
+
+generators.register
+  [ new python-test-generator python.capture-output : : RUN_PYD_OUTPUT ] ;
+
+generators.register-standard testing.expect-success
+  : RUN_PYD_OUTPUT : RUN_PYD ;
+
+
+# There are two different ways of spelling OS names. One is used for [ os.name ]
+# and the other is used for the <host-os> and <target-os> properties. Until that
+# is remedied, this sets up a crude mapping from the latter to the former, that
+# will work *for the purposes of cygwin/NT cross-builds only*. Could not think
+# of a better name than "translate".
+#
+.translate-os-windows = NT ;
+.translate-os-cygwin = CYGWIN ;
+local rule translate-os ( src-os )
+{
+    local x = $(.translate-os-$(src-os)) [ os.name ] ;
+    return $(x[1]) ;
+}
+
+
+# Extract the path to a single ".pyd" source. This is used to build the
+# PYTHONPATH for running bpl tests.
+#
+local rule pyd-pythonpath ( source )
+{
+    return [ on $(source) return $(LOCATE) $(SEARCH) ] ;
+}
+
+
+# The flag settings on testing.capture-output do not apply to python.capture
+# output at the moment. Redo this explicitly.
+toolset.flags python.capture-output ARGS <testing.arg> ;
+
+
+rule capture-output ( target : sources * : properties * )
+{
+    # Setup up a proper DLL search path. Here, $(sources[1]) is a python module
+    # and $(sources[2]) is a DLL. Only $(sources[1]) is passed to
+    # testing.capture-output, so RUN_PATH variable on $(sources[2]) is not
+    # consulted. Move it over explicitly.
+    RUN_PATH on $(sources[1]) = [ on $(sources[2-]) return $(RUN_PATH) ] ;
+
+    PYTHONPATH  = [ sequence.transform pyd-pythonpath : $(sources[2-]) ] ;
+    PYTHONPATH += [ feature.get-values pythonpath : $(properties) ] ;
+
+    # After test is run, we remove the Python module, but not the Python script.
+    testing.capture-output $(target) : $(sources[1]) : $(properties) :
+        $(sources[2-]) ;
+
+    # PYTHONPATH is different; it will be interpreted by whichever Python is
+    # invoked and so must follow path rules for the target os. The only OSes
+    # where we can run python for other OSes currently are NT and CYGWIN so we
+    # only need to handle those cases.
+    local target-os = [ feature.get-values target-os : $(properties) ] ;
+    # Oddly, host-os is not in properties, so grab the default value.
+    local host-os = [ feature.defaults host-os ] ;
+    host-os = $(host-os:G=) ;
+    if $(target-os) != $(host-os)
+    {
+        PYTHONPATH = [ sequence.transform $(host-os)-to-$(target-os)-path :
+            $(PYTHONPATH) ] ;
+    }
+    local path-separator = [ os.path-separator [ translate-os $(target-os) ] ] ;
+    local set-PYTHONPATH = [ common.variable-setting-command PYTHONPATH :
+        $(PYTHONPATH:J=$(path-separator)) ] ;
+    LAUNCHER on $(target) = $(set-PYTHONPATH) [ on $(target) return \"$(PYTHON)\" ] ;
+}
+
+
+rule bpl-test ( name : sources * : requirements * )
+{
+    local s ;
+    sources ?= $(name).py $(name).cpp ;
+    return [ testing.make-test run-pyd : $(sources) /boost/python//boost_python
+        : $(requirements) : $(name) ] ;
+}
+
+
+IMPORT $(__name__) : bpl-test : : bpl-test ;
diff --git a/jam-files/boost-build/tools/qcc.jam b/jam-files/boost-build/tools/qcc.jam
new file mode 100644
index 00000000..4f2a4fc1
--- /dev/null
+++ b/jam-files/boost-build/tools/qcc.jam
@@ -0,0 +1,236 @@
+#  Copyright (c) 2001 David Abrahams.
+#  Copyright (c) 2002-2003 Rene Rivera.
+#  Copyright (c) 2002-2003 Vladimir Prus.
+#
+#  Use, modification and distribution is subject to the Boost Software
+#  License Version 1.0. (See accompanying file LICENSE_1_0.txt or
+#  http://www.boost.org/LICENSE_1_0.txt)
+
+import "class" : new ;
+import common ;
+import errors ;
+import feature ;
+import generators ;
+import os ;
+import property ;
+import set ;
+import toolset ;
+import type ;
+import unix ;
+
+feature.extend toolset : qcc ;
+
+toolset.inherit-generators qcc : unix : unix.link unix.link.dll ;
+generators.override builtin.lib-generator : qcc.prebuilt ;
+toolset.inherit-flags qcc : unix ;
+toolset.inherit-rules qcc : unix ;
+
+# Initializes the qcc toolset for the given version. If necessary, command may
+# be used to specify where the compiler is located. The parameter 'options' is a
+# space-delimited list of options, each one being specified as
+# <option-name>option-value. Valid option names are: cxxflags, linkflags and
+# linker-type. Accepted values for linker-type are gnu and sun, gnu being the
+# default.
+#
+# Example:
+#   using qcc : 3.4 : : <cxxflags>foo <linkflags>bar <linker-type>sun ;
+#
+rule init ( version ? : command * : options * )
+{
+    local condition = [ common.check-init-parameters qcc : version $(version) ] ;
+    local command = [ common.get-invocation-command qcc : QCC : $(command) ] ;
+    common.handle-options qcc : $(condition) : $(command) : $(options) ;
+}
+
+
+generators.register-c-compiler qcc.compile.c++ : CPP : OBJ : <toolset>qcc ;
+generators.register-c-compiler qcc.compile.c   : C   : OBJ : <toolset>qcc ;
+generators.register-c-compiler qcc.compile.asm : ASM : OBJ : <toolset>qcc ;
+
+
+# Declare flags for compilation.
+toolset.flags qcc.compile OPTIONS <debug-symbols>on : -gstabs+ ;
+
+# Declare flags and action for compilation.
+toolset.flags qcc.compile OPTIONS <optimization>off : -O0 ;
+toolset.flags qcc.compile OPTIONS <optimization>speed : -O3 ;
+toolset.flags qcc.compile OPTIONS <optimization>space : -Os ;
+
+toolset.flags qcc.compile OPTIONS <inlining>off : -Wc,-fno-inline ;
+toolset.flags qcc.compile OPTIONS <inlining>on : -Wc,-Wno-inline ;
+toolset.flags qcc.compile OPTIONS <inlining>full : -Wc,-finline-functions -Wc,-Wno-inline ;
+
+toolset.flags qcc.compile OPTIONS <warnings>off : -w ;
+toolset.flags qcc.compile OPTIONS <warnings>all : -Wc,-Wall ;
+toolset.flags qcc.compile OPTIONS <warnings-as-errors>on : -Wc,-Werror ;
+
+toolset.flags qcc.compile OPTIONS <profiling>on : -p ;
+
+toolset.flags qcc.compile OPTIONS <cflags> ;
+toolset.flags qcc.compile.c++ OPTIONS <cxxflags> ;
+toolset.flags qcc.compile DEFINES <define> ;
+toolset.flags qcc.compile INCLUDES <include> ;
+
+toolset.flags qcc.compile OPTIONS <link>shared : -shared ;
+
+toolset.flags qcc.compile.c++ TEMPLATE_DEPTH <c++-template-depth> ;
+
+
+rule compile.c++
+{
+    # Here we want to raise the template-depth parameter value to something
+    # higher than the default value of 17. Note that we could do this using the
+    # feature.set-default rule but we do not want to set the default value for
+    # all toolsets as well.
+    #
+    # TODO: This 'modified default' has been inherited from some 'older Boost
+    # Build implementation' and has most likely been added to make some Boost
+    # library parts compile correctly. We should see what exactly prompted this
+    # and whether we can get around the problem more locally.
+    local template-depth = [ on $(1) return $(TEMPLATE_DEPTH) ] ;
+    if ! $(template-depth)
+    {
+        TEMPLATE_DEPTH on $(1) = 128 ;
+    }
+}
+
+actions compile.c++
+{
+    "$(CONFIG_COMMAND)" -Wc,-ftemplate-depth-$(TEMPLATE_DEPTH) $(OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -c -o "$(<)" "$(>)"
+}
+
+actions compile.c
+{
+    "$(CONFIG_COMMAND)" $(OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -c -o "$(<)" "$(>)"
+}
+
+actions compile.asm
+{
+    "$(CONFIG_COMMAND)" $(OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -c -o "$(<)" "$(>)"
+}
+
+
+# The class checking that we do not try to use the <runtime-link>static property
+# while creating or using a shared library, since it is not supported by qcc/
+# /libc.
+#
+class qcc-linking-generator : unix-linking-generator
+{
+    rule generated-targets ( sources + : property-set : project name ? )
+    {
+        if <runtime-link>static in [ $(property-set).raw ]
+        {
+            local m ;
+            if [ id ] = "qcc.link.dll"
+            {
+                m = "on qcc, DLL can't be build with <runtime-link>static" ;
+            }
+            if ! $(m)
+            {
+                for local s in $(sources)
+                {
+                    local type = [ $(s).type ] ;
+                    if $(type) && [ type.is-derived $(type) SHARED_LIB ]
+                    {
+                        m = "on qcc, using DLLS together with the <runtime-link>static options is not possible " ;
+                    }
+                }
+            }
+            if $(m)
+            {
+                errors.user-error $(m) : "It is suggested to use"
+                    "<runtime-link>static together with <link>static." ;
+            }
+        }
+
+        return [ unix-linking-generator.generated-targets
+            $(sources) : $(property-set) : $(project) $(name) ] ;
+    }
+}
+
+generators.register [ new qcc-linking-generator qcc.link : LIB OBJ : EXE
+    : <toolset>qcc ] ;
+
+generators.register [ new qcc-linking-generator qcc.link.dll : LIB OBJ
+    : SHARED_LIB : <toolset>qcc ] ;
+
+generators.override qcc.prebuilt : builtin.prebuilt ;
+generators.override qcc.searched-lib-generator : searched-lib-generator ;
+
+
+# Declare flags for linking.
+# First, the common flags.
+toolset.flags qcc.link OPTIONS <debug-symbols>on : -gstabs+ ;
+toolset.flags qcc.link OPTIONS <profiling>on : -p ;
+toolset.flags qcc.link OPTIONS <linkflags> ;
+toolset.flags qcc.link LINKPATH <library-path> ;
+toolset.flags qcc.link FINDLIBS-ST <find-static-library> ;
+toolset.flags qcc.link FINDLIBS-SA <find-shared-library> ;
+toolset.flags qcc.link LIBRARIES <library-file> ;
+
+toolset.flags qcc.link FINDLIBS-SA : m ;
+
+# For <runtime-link>static we made sure there are no dynamic libraries in the
+# link.
+toolset.flags qcc.link OPTIONS <runtime-link>static : -static ;
+
+# Assuming this is just like with gcc.
+toolset.flags qcc.link RPATH : <dll-path> : unchecked ;
+toolset.flags qcc.link RPATH_LINK : <xdll-path> : unchecked ;
+
+
+# Declare actions for linking.
+#
+rule link ( targets * : sources * : properties * )
+{
+    SPACE on $(targets) = " " ;
+    # Serialize execution of the 'link' action, since running N links in
+    # parallel is just slower. For now, serialize only qcc links while it might
+    # be a good idea to serialize all links.
+    JAM_SEMAPHORE on $(targets) = <s>qcc-link-semaphore ;
+}
+
+actions link bind LIBRARIES
+{
+    "$(CONFIG_COMMAND)" -L"$(LINKPATH)" -Wl,-R$(SPACE)-Wl,"$(RPATH)" -Wl,-rpath-link$(SPACE)-Wl,"$(RPATH_LINK)" -o "$(<)" "$(>)" "$(LIBRARIES)" -l$(FINDLIBS-ST) -l$(FINDLIBS-SA) $(OPTIONS)
+}
+
+
+# Always remove archive and start again. Here is the rationale from Andre Hentz:
+# I had a file, say a1.c, that was included into liba.a. I moved a1.c to a2.c,
+# updated my Jamfiles and rebuilt. My program was crashing with absurd errors.
+# After some debugging I traced it back to the fact that a1.o was *still* in
+# liba.a
+RM = [ common.rm-command ] ;
+if [ os.name ] = NT
+{
+    RM = "if exist \"$(<[1])\" DEL \"$(<[1])\""  ;
+}
+
+
+# Declare action for creating static libraries. The 'r' letter means to add
+# files to the archive with replacement. Since we remove the archive, we do not
+# care about replacement, but there is no option to "add without replacement".
+# The 'c' letter suppresses warnings in case the archive does not exists yet.
+# That warning is produced only on some platforms, for whatever reasons.
+#
+actions piecemeal archive
+{
+    $(RM) "$(<)"
+    ar rc "$(<)" "$(>)"
+}
+
+
+rule link.dll ( targets * : sources * : properties * )
+{
+    SPACE on $(targets) = " " ;
+    JAM_SEMAPHORE on $(targets) = <s>qcc-link-semaphore ;
+}
+
+
+# Differ from 'link' above only by -shared.
+#
+actions link.dll bind LIBRARIES
+{
+    "$(CONFIG_COMMAND)" -L"$(LINKPATH)" -Wl,-R$(SPACE)-Wl,"$(RPATH)" -o "$(<)" $(HAVE_SONAME)-Wl,-h$(SPACE)-Wl,$(<[1]:D=) -shared "$(>)"  "$(LIBRARIES)" -l$(FINDLIBS-ST) -l$(FINDLIBS-SA) $(OPTIONS)
+}
diff --git a/jam-files/boost-build/tools/qt.jam b/jam-files/boost-build/tools/qt.jam
new file mode 100644
index 00000000..8aa7ca26
--- /dev/null
+++ b/jam-files/boost-build/tools/qt.jam
@@ -0,0 +1,17 @@
+#  Copyright (c) 2006 Vladimir Prus.
+#
+#  Use, modification and distribution is subject to the Boost Software
+#  License Version 1.0. (See accompanying file LICENSE_1_0.txt or
+#  http://www.boost.org/LICENSE_1_0.txt)
+
+#  Forwarning toolset file to Qt GUI library. Forwards to the toolset file
+#  for the current version of Qt.
+
+import qt4 ;
+
+rule init ( prefix : full_bin ? : full_inc ? : full_lib ? : version ? : condition * )
+{
+    qt4.init $(prefix) : $(full_bin)  : $(full_inc) : $(full_lib) : $(version) : $(condition) ;
+}
+
+
diff --git a/jam-files/boost-build/tools/qt3.jam b/jam-files/boost-build/tools/qt3.jam
new file mode 100644
index 00000000..f82cf0ac
--- /dev/null
+++ b/jam-files/boost-build/tools/qt3.jam
@@ -0,0 +1,209 @@
+# Copyright 2006 Vladimir Prus 
+# Distributed under the Boost Software License, Version 1.0. 
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) 
+
+# Support for the Qt GUI library version 3
+# (http://www.trolltech.com/products/qt3/index.html).
+# For new developments, it is recommended to use Qt4 via the qt4 Boost.Build
+# module.
+
+import modules ;
+import feature ;
+import errors ;
+import type ;
+import "class" : new ;
+import generators ;
+import project ;
+import toolset : flags ;
+
+# Convert this module into a project, so that we can declare targets here.
+project.initialize $(__name__) ;
+project qt3 ;
+
+
+# Initialized the QT support module. The 'prefix' parameter tells where QT is
+# installed. When not given, environmental variable QTDIR should be set.
+#
+rule init ( prefix ? )
+{
+    if ! $(prefix)
+    {
+        prefix = [ modules.peek : QTDIR ] ;
+        if ! $(prefix) 
+        {
+            errors.error 
+              "QT installation prefix not given and QTDIR variable is empty" ;
+        }        
+    }
+ 
+    if $(.initialized)
+    {
+        if $(prefix) != $(.prefix)
+        {
+            errors.error 
+              "Attempt the reinitialize QT with different installation prefix" ;
+        }        
+    } 
+    else
+    {            
+        .initialized = true ;
+        .prefix = $(prefix) ;
+        
+        generators.register-standard qt3.moc : H : CPP(moc_%) : <allow>qt3 ;
+        # Note: the OBJ target type here is fake, take a look at
+        # qt4.jam/uic-h-generator for explanations that apply in this case as
+        # well.
+        generators.register [ new moc-h-generator-qt3 
+            qt3.moc.cpp : MOCCABLE_CPP : OBJ : <allow>qt3 ] ;
+        
+        # The UI type is defined in types/qt.jam, and UIC_H is only used in
+        # qt.jam, but not in qt4.jam, so define it here.
+        type.register UIC_H : : H ;
+        
+        generators.register-standard qt3.uic-h : UI : UIC_H : <allow>qt3 ;
+        
+        # The following generator is used to convert UI files to CPP. It creates
+        # UIC_H from UI, and constructs CPP from UI/UIC_H. In addition, it also
+        # returns UIC_H target, so that it can be mocced.
+        class qt::uic-cpp-generator : generator
+        {
+            rule __init__ ( )
+            {
+                generator.__init__ qt3.uic-cpp : UI UIC_H : CPP : <allow>qt3 ;
+            }
+                        
+            rule run ( project name ? : properties * : sources + )
+            {
+                # Consider this:
+                #    obj test : test_a.cpp : <optimization>off ;
+                #
+                # This generator will somehow be called in this case, and,
+                # will fail -- which is okay. However, if there are <library>
+                # properties they will be converted to sources, so the size of 
+                # 'sources' will be more than 1. In this case, the base generator
+                # will just crash -- and that's not good. Just use a quick test
+                # here.
+                                
+                local result ;
+                if ! $(sources[2])
+                {    
+                    # Construct CPP as usual
+                    result = [ generator.run $(project) $(name) 
+                      : $(properties) : $(sources) ] ;
+                    
+                    # If OK, process UIC_H with moc. It's pretty clear that
+                    # the object generated with UIC will have Q_OBJECT macro.
+                    if $(result)
+                    {
+                        local action = [ $(result[1]).action ] ;
+                        local sources = [ $(action).sources ] ;
+                        local mocced = [ generators.construct $(project) $(name)
+                          : CPP : $(properties) : $(sources[2]) ] ;
+                        result += $(mocced[2-]) ;
+                    }
+                }
+                            
+                return $(result) ;
+            }               
+        }
+    
+        generators.register [ new qt::uic-cpp-generator ] ;
+        
+        # Finally, declare prebuilt target for QT library.
+        local usage-requirements = 
+             <include>$(.prefix)/include 
+             <dll-path>$(.prefix)/lib
+             <library-path>$(.prefix)/lib     
+             <allow>qt3
+             ;  
+        lib qt : : <name>qt-mt <threading>multi : : $(usage-requirements) ;
+        lib qt : : <name>qt <threading>single : : $(usage-requirements) ;        
+    }
+}
+
+class moc-h-generator-qt3 : generator
+{
+    rule __init__ ( * : * )
+    {
+        generator.__init__ $(1) : $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ;
+    }
+
+    rule run ( project name ? : property-set : sources * )
+    {       
+        if ! $(sources[2]) && [ $(sources[1]).type ] = MOCCABLE_CPP
+        {                              
+            name = [ $(sources[1]).name ] ;
+            name = $(name:B) ;
+            
+            local a = [ new action $(sources[1]) : qt3.moc.cpp :
+              $(property-set) ] ;
+            
+            local target = [ 
+              new file-target $(name) : MOC : $(project) : $(a) ] ;
+            
+            local r = [ virtual-target.register $(target) ] ; 
+                                  
+            # Since this generator will return a H target, the linking generator
+            # won't use it at all, and won't set any dependency on it. However, 
+            # we need the target to be seen by bjam, so that the dependency from
+            # sources to this generated header is detected -- if Jam does not
+            # know about this target, it won't do anything.
+            DEPENDS all : [ $(r).actualize ] ;
+            
+            return $(r) ;            
+        }        
+    }    
+}
+
+
+# Query the installation directory. This is needed in at least two scenarios.
+# First, when re-using sources from the Qt-Tree. Second, to "install" custom Qt
+# plugins to the Qt-Tree.
+#
+rule directory 
+{ 
+    return $(.prefix) ; 
+} 
+
+# -f forces moc to include the processed source file. Without it, it would think
+# that .qpp is not a header and would not include it from the generated file.
+#
+actions moc 
+{
+    $(.prefix)/bin/moc -f $(>) -o $(<)
+}
+
+# When moccing .cpp files, we don't need -f, otherwise generated code will
+# include .cpp and we'll get duplicated symbols.
+#
+actions moc.cpp
+{
+    $(.prefix)/bin/moc $(>) -o $(<)
+}
+
+
+space = " " ;
+
+# Sometimes it's required to make 'plugins' available during uic invocation. To
+# help with this we add paths to all dependency libraries to uic commane line.
+# The intention is that it's possible to write
+#    
+#     exe a : ... a.ui ... : <uses>some_plugin ; 
+# 
+# and have everything work. We'd add quite a bunch of unrelated paths but it
+# won't hurt.
+#
+flags qt3.uic-h LIBRARY_PATH <xdll-path> ;
+actions uic-h
+{
+    $(.prefix)/bin/uic $(>) -o $(<) -L$(space)$(LIBRARY_PATH)
+}
+
+
+flags qt3.uic-cpp LIBRARY_PATH <xdll-path> ;
+# The second target is uic-generated header name. It's placed in build dir, but
+# we want to include it using only basename.
+actions uic-cpp
+{
+    $(.prefix)/bin/uic $(>[1]) -i $(>[2]:D=) -o $(<) -L$(space)$(LIBRARY_PATH)
+}
diff --git a/jam-files/boost-build/tools/qt4.jam b/jam-files/boost-build/tools/qt4.jam
new file mode 100644
index 00000000..71d1b762
--- /dev/null
+++ b/jam-files/boost-build/tools/qt4.jam
@@ -0,0 +1,724 @@
+# Copyright 2002-2006 Vladimir Prus
+# Copyright 2005 Alo Sarv
+# Copyright 2005-2009 Juergen Hunold
+#
+# Distributed under the Boost Software License, Version 1.0. (See
+# accompanying file LICENSE_1_0.txt or copy at
+# http://www.boost.org/LICENSE_1_0.txt)
+
+# Qt4 library support module
+#
+# The module attempts to auto-detect QT installation location from QTDIR
+# environment variable; failing that, installation location can be passed as
+# argument:
+#
+# toolset.using qt4 : /usr/local/Trolltech/Qt-4.0.0 ;
+#
+# The module supports code generation from .ui and .qrc files, as well as
+# running the moc preprocessor on headers. Note that you must list all your
+# moc-able headers in sources.
+#
+# Example:
+#
+#     exe myapp : myapp.cpp myapp.h myapp.ui myapp.qrc
+#                 /qt4//QtGui /qt4//QtNetwork ;
+#
+# It's also possible to run moc on cpp sources:
+#
+#   import cast ;
+#
+#   exe myapp : myapp.cpp [ cast _ moccable-cpp : myapp.cpp ] /qt4//QtGui ;
+#
+# When moccing source file myapp.cpp you need to include "myapp.moc" from
+# myapp.cpp. When moccing .h files, the output of moc will be automatically
+# compiled and linked in, you don't need any includes.
+#
+# This is consistent with Qt guidelines:
+# http://doc.trolltech.com/4.0/moc.html
+
+import modules ;
+import feature ;
+import errors ;
+import type ;
+import "class" : new ;
+import generators ;
+import project ;
+import toolset : flags ;
+import os ;
+import virtual-target ;
+import scanner ;
+
+# Qt3Support control feature
+#
+# Qt4 configure defaults to build Qt4 libraries with Qt3Support.
+# The autodetection is missing, so we default to disable Qt3Support.
+# This prevents the user from inadvertedly using a deprecated API.
+#
+# The Qt3Support library can be activated by adding
+# "<qt3support>on" to requirements
+#
+# Use "<qt3support>on:<define>QT3_SUPPORT_WARNINGS"
+# to get warnings about deprecated Qt3 support funtions and classes.
+# Files ported by the "qt3to4" conversion tool contain _tons_ of
+# warnings, so this define is not set as default.
+#
+# Todo: Detect Qt3Support from Qt's configure data.
+#       Or add more auto-configuration (like python).
+feature.feature qt3support : off on : propagated link-incompatible ;
+
+# The Qt version used for requirements
+# Valid are <qt>4.4 or <qt>4.5.0
+# Auto-detection via qmake sets '<qt>major.minor.patch'
+feature.feature qt : : propagated ;
+
+project.initialize $(__name__) ;
+project qt ;
+
+# Save the project so that we tolerate 'import + using' combo.
+.project = [ project.current ] ;
+
+# Helper utils for easy debug output
+if [ MATCH (--debug-configuration) : [ modules.peek : ARGV ] ]
+{
+    .debug-configuration = TRUE ;
+}
+
+local rule debug-message ( message * )
+{
+    if $(.debug-configuration) = TRUE
+    {
+        ECHO notice: [qt4-cfg] $(message) ;
+    }
+}
+
+# Capture qmake output line by line
+local rule read-output ( content )
+{
+    local lines ;
+    local nl = "
+" ;
+    local << = "([^$(nl)]*)[$(nl)](.*)" ;
+    local line+ = [ MATCH "$(<<)" : "$(content)" ] ;
+    while $(line+)
+    {
+        lines += $(line+[1]) ;
+        line+ = [ MATCH "$(<<)" : "$(line+[2])" ] ;
+    }
+    return $(lines) ;
+}
+
+# Capture Qt version from qmake
+local rule check-version ( bin_prefix )
+{
+    full-cmd = $(bin_prefix)"/qmake -v" ;
+    debug-message Running '$(full-cmd)' ;
+    local output = [ SHELL $(full-cmd) ] ;
+    for line in [ read-output $(output) ]
+    {
+        # Parse the output to get all the results.
+        if [ MATCH "QMake" : $(line) ]
+        {
+            # Skip first line of output
+        }
+        else
+        {
+            temp = [ MATCH "([0-9]*)\\.([0-9]*)\\.([0-9]*)" : $(line) ] ;
+        }
+    }
+    return $(temp) ;
+}
+
+# Validate the version string and extract the major/minor part we care about.
+#
+local rule split-version ( version )
+{
+    local major-minor = [ MATCH ^([0-9]+)\.([0-9]+)(.*)$ : $(version) : 1 2 3 ] ;
+    if ! $(major-minor[2]) || $(major-minor[3])
+    {
+        ECHO "Warning: 'using qt' expects a two part (major, minor) version number; got" $(version) instead ;
+
+        # Add a zero to account for the missing digit if necessary.
+        major-minor += 0 ;
+    }
+
+    return $(major-minor[1]) $(major-minor[2]) ;
+}
+
+# Initialize the QT support module.
+# Parameters:
+# - 'prefix'    parameter tells where Qt is installed.
+# - 'full_bin'  optional full path to Qt binaries (qmake,moc,uic,rcc)
+# - 'full_inc'  optional full path to Qt top-level include directory
+# - 'full_lib'  optional full path to Qt library directory
+# - 'version'   optional version of Qt, else autodetected via 'qmake -v'
+# - 'condition' optional requirements
+rule init ( prefix : full_bin ? : full_inc ? : full_lib ? : version ? : condition * )
+{
+    project.push-current $(.project) ;
+
+    debug-message "==== Configuring Qt ... ====" ;
+    for local v in version cmd-or-prefix includes libraries condition
+    {
+        if $($(v))
+        {
+            debug-message "  user-specified "$(v): '$($(v))' ;
+        }
+    }
+
+    # Needed as default value
+    .prefix = $(prefix) ;
+
+    # pre-build paths to detect reinitializations changes
+    local inc_prefix lib_prefix bin_prefix ;
+    if $(full_inc)
+    {
+        inc_prefix = $(full_inc) ;
+    }
+    else
+    {
+        inc_prefix = $(prefix)/include ;
+    }
+    if $(full_lib)
+    {
+        lib_prefix = $(full_lib) ;
+    }
+    else
+    {
+        lib_prefix = $(prefix)/lib ;
+    }
+    if $(full_bin)
+    {
+        bin_prefix = $(full_bin) ;
+    }
+    else
+    {
+        bin_prefix = $(prefix)/bin ;
+    }
+
+    # Globally needed variables
+    .incprefix = $(inc_prefix) ;
+    .libprefix = $(lib_prefix) ;
+    .binprefix = $(bin_prefix) ;
+
+    if ! $(.initialized)
+    {
+        # Make sure this is initialised only once
+        .initialized = true ;
+
+        # Generates cpp files from header files using "moc" tool
+        generators.register-standard qt4.moc : H : CPP(moc_%) : <allow>qt4 ;
+
+        # The OBJ result type is a fake, 'H' will be really produced. See
+        # comments on the generator class, defined below the 'init' function.
+        generators.register [ new uic-generator qt4.uic : UI : OBJ :
+            <allow>qt4  ] ;
+
+        # The OBJ result type is a fake here too.
+        generators.register [ new moc-h-generator
+            qt4.moc.inc : MOCCABLE_CPP : OBJ : <allow>qt4 ] ;
+
+        generators.register [ new moc-inc-generator
+            qt4.moc.inc : MOCCABLE_H : OBJ : <allow>qt4 ] ;
+
+        # Generates .cpp files from .qrc files.
+        generators.register-standard qt4.rcc : QRC : CPP(qrc_%) ;
+
+        # dependency scanner for wrapped files.
+        type.set-scanner QRC : qrc-scanner ;
+
+        # Save value of first occuring prefix
+        .PREFIX = $(prefix) ;
+    }
+
+    if $(version)
+    {
+        major-minor = [ split-version $(version) ] ;
+        version = $(major-minor:J=.) ;
+    }
+    else
+    {
+        version = [ check-version $(bin_prefix) ] ;
+        if $(version)
+        {
+            version = $(version:J=.) ;
+        }
+        debug-message Detected version '$(version)' ;
+    }
+
+    local target-requirements = $(condition) ;
+
+    # Add the version, if any, to the target requirements.
+    if $(version)
+    {
+        if ! $(version) in [ feature.values qt ]
+        {
+            feature.extend qt : $(version) ;
+        }
+        target-requirements += <qt>$(version:E=default) ;
+    }
+
+    local target-os = [ feature.get-values target-os : $(condition) ] ;
+    if ! $(target-os)
+    {
+        target-os ?= [ feature.defaults target-os ] ;
+        target-os = $(target-os:G=) ;
+        target-requirements += <target-os>$(target-os) ;
+    }
+
+    # Build exact requirements for the tools
+    local tools-requirements = $(target-requirements:J=/) ;
+
+    debug-message "Details of this Qt configuration:" ;
+    debug-message "  prefix:      " '$(prefix:E=<empty>)' ;
+    debug-message "  binary path: " '$(bin_prefix:E=<empty>)' ;
+    debug-message "  include path:" '$(inc_prefix:E=<empty>)' ;
+    debug-message "  library path:" '$(lib_prefix:E=<empty>)' ;
+    debug-message "  target requirements:" '$(target-requirements)' ;
+    debug-message "  tool requirements:  " '$(tools-requirements)' ;
+
+    # setup the paths for the tools
+    toolset.flags qt4.moc .BINPREFIX $(tools-requirements) : $(bin_prefix) ;
+    toolset.flags qt4.rcc .BINPREFIX $(tools-requirements) : $(bin_prefix) ;
+    toolset.flags qt4.uic .BINPREFIX $(tools-requirements) : $(bin_prefix) ;
+
+    # TODO: 2009-02-12: Better support for directories
+    # Most likely needed are separate getters for: include,libraries,binaries and sources.
+    toolset.flags qt4.directory .PREFIX $(tools-requirements) : $(prefix) ;
+
+    # Test for a buildable Qt.
+    if [ glob $(.prefix)/Jamroot ]
+    {
+       .bjam-qt = true
+
+       # this will declare QtCore (and qtmain on <target-os>windows)
+       add-shared-library QtCore ;
+   }
+   else
+   # Setup common pre-built Qt.
+   # Special setup for QtCore on which everything depends
+   {
+       local usage-requirements =
+           <include>$(.incprefix)
+           <library-path>$(.libprefix)
+           <dll-path>$(.libprefix)
+           <threading>multi
+           <allow>qt4 ;
+
+       local suffix ;
+
+       # Since Qt-4.2, debug versions on unix have to be built
+       # separately and therefore have no suffix.
+       .suffix_version = "" ;
+       .suffix_debug = "" ;
+
+       # Control flag for auto-configuration of the debug libraries.
+       # This setup requires Qt 'configure -debug-and-release'.
+       # Only available on some platforms.
+       # ToDo: 2009-02-12: Maybe throw this away and
+       # require separate setup with <variant>debug as condition.
+       .have_separate_debug = FALSE ;
+
+       # Setup other platforms
+       if $(target-os) in windows cygwin
+       {
+           .have_separate_debug = TRUE ;
+
+           # On NT, the libs have "4" suffix, and "d" suffix in debug builds.
+           .suffix_version = "4" ;
+           .suffix_debug = "d" ;
+
+           # On Windows we must link against the qtmain library
+           lib qtmain
+               : # sources
+               : # requirements
+                  <name>qtmain$(.suffix_debug)
+                  <variant>debug
+                  $(target-requirements)
+               ;
+
+           lib qtmain
+               : # sources
+               : # requirements
+                   <name>qtmain
+                   $(target-requirements)
+               ;
+       }
+       else if $(target-os) = darwin
+       {
+           # On MacOS X, both debug and release libraries are available.
+           .suffix_debug = "_debug" ;
+
+           .have_separate_debug = TRUE ;
+
+           alias qtmain ;
+       }
+       else
+       {
+           alias qtmain : : $(target-requirements) ;
+       }
+
+       lib QtCore : qtmain
+           : # requirements
+             <name>QtCore$(.suffix_version)
+             $(target-requirements)
+           : # default-build
+           : # usage-requirements
+             <define>QT_CORE_LIB
+             <define>QT_NO_DEBUG
+             <include>$(.incprefix)/QtCore
+             $(usage-requirements)
+           ;
+
+       if $(.have_separate_debug) = TRUE
+       {
+           debug-message Configure debug libraries with suffix '$(.suffix_debug)' ;
+
+           lib QtCore : $(main)
+               : # requirements
+                 <name>QtCore$(.suffix_debug)$(.suffix_version)
+                 <variant>debug
+                 $(target-requirements)
+               : # default-build
+               : # usage-requirements
+                 <define>QT_CORE_LIB
+                 <include>$(.incprefix)/QtCore
+                 $(usage-requirements)
+               ;
+        }
+    }
+
+    # Initialising the remaining libraries is canonical
+    # parameters 'module' : 'depends-on' : 'usage-define' : 'requirements' : 'include'
+    # 'include' only for non-canonical include paths.
+    add-shared-library QtGui     : QtCore : QT_GUI_LIB     : $(target-requirements) ;
+    add-shared-library QtNetwork : QtCore : QT_NETWORK_LIB : $(target-requirements) ;
+    add-shared-library QtSql     : QtCore : QT_SQL_LIB     : $(target-requirements) ;
+    add-shared-library QtXml     : QtCore : QT_XML_LIB     : $(target-requirements) ;
+
+    add-shared-library Qt3Support : QtGui QtNetwork QtXml QtSql
+                                  : QT_QT3SUPPORT_LIB QT3_SUPPORT
+                                  : <qt3support>on $(target-requirements) ;
+
+    # Dummy target to enable "<qt3support>off" and
+    # "<library>/qt//Qt3Support" at the same time. This enables quick
+    # switching from one to the other for test/porting purposes.
+    alias Qt3Support : : <qt3support>off $(target-requirements) ;
+
+    # OpenGl Support
+    add-shared-library QtOpenGL : QtGui : QT_OPENGL_LIB : $(target-requirements) ;
+
+    # SVG-Support (Qt 4.1)
+    add-shared-library QtSvg : QtXml QtOpenGL : QT_SVG_LIB : $(target-requirements) ;
+
+    # Test-Support (Qt 4.1)
+    add-shared-library QtTest : QtCore : : $(target-requirements) ;
+
+    # Qt designer library
+    add-shared-library QtDesigner : QtGui QtXml : : $(target-requirements) ;
+    add-shared-library QtDesignerComponents : QtGui QtXml : : $(target-requirements) ;
+
+    # Support for dynamic Widgets (Qt 4.1)
+    add-static-library  QtUiTools : QtGui QtXml : $(target-requirements) ;
+
+    # DBus-Support (Qt 4.2)
+    add-shared-library QtDBus : QtXml : : $(target-requirements) ;
+
+    # Script-Engine (Qt 4.3)
+    add-shared-library QtScript : QtGui QtXml : QT_SCRIPT_LIB : $(target-requirements) ;
+
+    # Tools for the Script-Engine (Qt 4.5)
+    add-shared-library QtScriptTools : QtScript : QT_SCRIPTTOOLS_LIB : $(target-requirements) ;
+
+    # WebKit (Qt 4.4)
+    add-shared-library QtWebKit : QtGui : QT_WEBKIT_LIB : $(target-requirements) ;
+
+    # Phonon Multimedia (Qt 4.4)
+    add-shared-library phonon : QtGui QtXml : QT_PHONON_LIB : $(target-requirements) ;
+
+    # Multimedia engine (Qt 4.6)
+    add-shared-library QtMultimedia : QtGui : QT_MULTIMEDIA_LIB : $(target-requirements) ;
+
+    # XmlPatterns-Engine (Qt 4.4)
+    add-shared-library QtXmlPatterns : QtNetwork : QT_XMLPATTERNS_LIB : $(target-requirements) ;
+
+    # Help-Engine (Qt 4.4)
+    add-shared-library QtHelp    : QtGui QtSql QtXml : : $(target-requirements) ;
+    add-shared-library QtCLucene : QCore QtSql QtXml : : $(target-requirements) ;
+
+    # QML-Engine (Qt 4.7)
+    add-shared-library QtDeclarative : QtGui QtXml : : $(target-requirements) ;
+
+    # AssistantClient Support
+    # Compat library removed in 4.7.0
+    # Pre-4.4 help system, use QtHelp for new programs
+    if $(version) < "4.7"
+    {
+       add-shared-library QtAssistantClient : QtGui : : $(target-requirements) : QtAssistant ;
+    }
+    debug-message "==== Configured Qt-$(version) ====" ;
+
+    project.pop-current ;
+}
+
+rule initialized ( )
+{
+    return $(.initialized) ;
+}
+
+
+
+# This custom generator is needed because in QT4, UI files are translated only
+# into H files, and no C++ files are created. Further, the H files need not be
+# passed via MOC. The header is used only via inclusion. If we define a standard
+# UI -> H generator, Boost.Build will run MOC on H, and then compile the
+# resulting cpp. It will give a warning, since output from moc will be empty.
+#
+# This generator is declared with a UI -> OBJ signature, so it gets invoked when
+# linking generator tries to convert sources to OBJ, but it produces target of
+# type H. This is non-standard, but allowed. That header won't be mocced.
+#
+class uic-generator : generator
+{
+    rule __init__ ( * : * )
+    {
+        generator.__init__ $(1) : $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ;
+    }
+
+    rule run ( project name ? : property-set : sources * )
+    {
+        if ! $(name)
+        {
+            name = [ $(sources[0]).name ] ;
+            name = $(name:B) ;
+        }
+
+        local a = [ new action $(sources[1]) : qt4.uic : $(property-set) ] ;
+
+        # The 'ui_' prefix is to match qmake's default behavior.
+        local target = [ new file-target ui_$(name) : H : $(project) : $(a) ] ;
+
+        local r = [ virtual-target.register $(target) ] ;
+
+        # Since this generator will return a H target, the linking generator
+        # won't use it at all, and won't set any dependency on it. However, we
+        # need the target to be seen by bjam, so that dependency from sources to
+        # this generated header is detected -- if jam does not know about this
+        # target, it won't do anything.
+        DEPENDS all : [ $(r).actualize ] ;
+
+        return $(r) ;
+    }
+}
+
+
+class moc-h-generator : generator
+{
+    rule __init__ ( * : * )
+    {
+        generator.__init__ $(1) : $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ;
+    }
+
+    rule run ( project name ? : property-set : sources * )
+    {
+        if ! $(sources[2]) && [ $(sources[1]).type ] = MOCCABLE_CPP
+        {
+            name = [ $(sources[0]).name ] ;
+            name = $(name:B) ;
+
+            local a = [ new action $(sources[1]) : qt4.moc.inc :
+                $(property-set) ] ;
+
+            local target = [ new file-target $(name) : MOC : $(project) : $(a)
+                ] ;
+
+            local r = [ virtual-target.register $(target) ] ;
+
+            # Since this generator will return a H target, the linking generator
+            # won't use it at all, and won't set any dependency on it. However,
+            # we need the target to be seen by bjam, so that dependency from
+            # sources to this generated header is detected -- if jam does not
+            # know about this target, it won't do anything.
+            DEPENDS all : [ $(r).actualize ] ;
+
+            return $(r) ;
+        }
+    }
+}
+
+
+class moc-inc-generator : generator
+{
+    rule __init__ ( * : * )
+    {
+        generator.__init__ $(1) : $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ;
+    }
+
+    rule run ( project name ? : property-set : sources * )
+    {
+        if ! $(sources[2]) && [ $(sources[1]).type ] = MOCCABLE_H
+        {
+            name = [ $(sources[0]).name ] ;
+            name = $(name:B) ;
+
+            local a = [ new action $(sources[1]) : qt4.moc.inc :
+                $(property-set) ] ;
+
+            local target = [ new file-target moc_$(name) : CPP : $(project) :
+                $(a) ] ;
+
+            # Since this generator will return a H target, the linking generator
+            # won't use it at all, and won't set any dependency on it. However,
+            # we need the target to be seen by bjam, so that dependency from
+            # sources to this generated header is detected -- if jam does not
+            # know about this target, it won't do anything.
+            DEPENDS all : [ $(target).actualize ] ;
+
+            return [ virtual-target.register $(target) ] ;
+        }
+    }
+}
+
+
+# Query the installation directory. This is needed in at least two scenarios.
+# First, when re-using sources from the Qt-Tree. Second, to "install" custom Qt
+# plugins to the Qt-Tree.
+#
+rule directory
+{
+    return $(.PREFIX) ;
+}
+
+# Add a shared Qt library.
+rule add-shared-library ( lib-name : depends-on * : usage-defines * : requirements * :  include ? )
+{
+     add-library $(lib-name) : $(.suffix_version) : $(depends-on) : $(usage-defines) : $(requirements) : $(include) ;
+}
+
+# Add a static Qt library.
+rule add-static-library ( lib-name : depends-on * : usage-defines * : requirements * : include ? )
+{
+     add-library $(lib-name) : : $(depends-on) : $(usage-defines) : $(requirements) : $(include) ;
+}
+
+# Add a Qt library.
+# Static libs are unversioned, whereas shared libs have the major number as suffix.
+# Creates both release and debug versions on platforms where both are enabled by Qt configure.
+# Flags:
+# - lib-name Qt library Name
+# - version  Qt major number used as shared library suffix (QtCore4.so)
+# - depends-on other Qt libraries
+# - usage-defines those are set by qmake, so set them when using this library
+# - requirements addional requirements
+# - include non-canonical include path. The canonical path is $(.incprefix)/$(lib-name).
+rule add-library ( lib-name : version ? : depends-on * : usage-defines * : requirements * : include ? )
+{
+    if $(.bjam-qt)
+    {
+        # Import Qt module
+        # Eveything will be setup there
+        alias $(lib-name)
+           : $(.prefix)//$(lib-name)
+           :
+           :
+           : <allow>qt4 ;
+    }
+    else
+    {
+        local real_include ;
+        real_include ?= $(include) ;
+        real_include ?= $(lib-name) ;
+
+        lib $(lib-name)
+           : # sources
+             $(depends-on)
+           : # requirements
+             <name>$(lib-name)$(version)
+             $(requirements)
+           : # default-build
+           : # usage-requirements
+             <define>$(usage-defines)
+             <include>$(.incprefix)/$(real_include)
+           ;
+
+        if $(.have_separate_debug) = TRUE
+        {
+            lib $(lib-name)
+               : # sources
+                 $(depends-on)
+               : # requirements
+                 <name>$(lib-name)$(.suffix_debug)$(version)
+                 $(requirements)
+                 <variant>debug
+               : # default-build
+               : # usage-requirements
+                 <define>$(usage-defines)
+                 <include>$(.incprefix)/$(real_include)
+               ;
+        }
+    }
+
+    # Make library explicit so that a simple <use>qt4 will not bring in everything.
+    # And some components like QtDBus/Phonon may not be available on all platforms.
+    explicit $(lib-name) ;
+}
+
+# Use $(.BINPREFIX[-1]) for the paths as several tools-requirements can match.
+# The exact match is the last one.
+
+# Get <include> and <defines> from current toolset.
+flags qt4.moc INCLUDES <include> ;
+flags qt4.moc DEFINES <define> ;
+
+# need a newline for expansion of DEFINES and INCLUDES in the response file.
+.nl  = "
+" ;
+
+# Processes headers to create Qt MetaObject information. Qt4-moc has its
+# c++-parser, so pass INCLUDES and DEFINES.
+# We use response file with one INCLUDE/DEFINE per line
+#
+actions moc
+{
+    $(.BINPREFIX[-1])/moc -f $(>) -o $(<) @"@($(<).rsp:E=-D$(DEFINES)$(.nl) -I$(INCLUDES:T)$(.nl))"
+}
+
+# When moccing files for include only, we don't need -f, otherwise the generated
+# code will include the .cpp and we'll get duplicated symbols.
+#
+actions moc.inc
+{
+    $(.BINPREFIX[-1])/moc $(>) -o $(<) @"@($(<).rsp:E=-D$(DEFINES)$(.nl) -I$(INCLUDES:T)$(.nl))"
+}
+
+
+# Generates source files from resource files.
+#
+actions rcc
+{
+    $(.BINPREFIX[-1])/rcc $(>) -name $(>:B) -o $(<)
+}
+
+
+# Generates user-interface source from .ui files.
+#
+actions uic
+{
+    $(.BINPREFIX[-1])/uic $(>) -o $(<)
+}
+
+
+# Scanner for .qrc files. Look for the CDATA section of the <file> tag. Ignore
+# the "alias" attribute. See http://doc.trolltech.com/qt/resources.html for
+# detailed documentation of the Qt Resource System.
+#
+class qrc-scanner : common-scanner
+{
+    rule pattern ( )
+    {
+        return "<file.*>(.*)</file>" ;
+    }
+}
+
+
+# Wrapped files are "included".
+scanner.register qrc-scanner : include ;
diff --git a/jam-files/boost-build/tools/quickbook-config.jam b/jam-files/boost-build/tools/quickbook-config.jam
new file mode 100644
index 00000000..e983a78a
--- /dev/null
+++ b/jam-files/boost-build/tools/quickbook-config.jam
@@ -0,0 +1,44 @@
+#~ Copyright 2005 Rene Rivera.
+#~ Distributed under the Boost Software License, Version 1.0.
+#~ (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+# Automatic configuration for BoostBook tools. To use, just import this module.
+
+import os ;
+import toolset : using ;
+
+if [ os.name ] = NT
+{
+    local boost-dir = ;
+    for local R in snapshot cvs 1.33.0
+    {
+        boost-dir += [ W32_GETREG
+            "HKEY_LOCAL_MACHINE\\SOFTWARE\\Boost.org\\$(R)"
+            : "InstallRoot" ] ;
+    }
+    local quickbook-path = [ GLOB "$(boost-dir)\\bin" "\\Boost\\bin" : quickbook.exe ] ;
+    quickbook-path = $(quickbook-path[1]) ;
+    
+    if $(quickbook-path)
+    {
+        if --debug-configuration in [ modules.peek : ARGV ]
+        {
+            ECHO "notice:" using quickbook ":" $(quickbook-path) ;
+        }
+        using quickbook : $(quickbook-path) ;
+    }
+}
+else
+{
+    local quickbook-path = [ GLOB "/usr/local/bin" "/usr/bin" "/opt/bin" : quickbook ] ;
+    quickbook-path = $(quickbook-path[1]) ;
+    
+    if $(quickbook-path)
+    {
+        if --debug-configuration in [ modules.peek : ARGV ]
+        {
+            ECHO "notice:" using quickbook ":" $(quickbook-path) ;
+        }
+        using quickbook : $(quickbook-path) ;
+    }
+}
diff --git a/jam-files/boost-build/tools/quickbook.jam b/jam-files/boost-build/tools/quickbook.jam
new file mode 100644
index 00000000..6de2d42f
--- /dev/null
+++ b/jam-files/boost-build/tools/quickbook.jam
@@ -0,0 +1,361 @@
+#
+#   Copyright (c) 2005 João Abecasis
+#   Copyright (c) 2005 Vladimir Prus
+#   Copyright (c) 2006 Rene Rivera
+#
+#   Distributed under the Boost Software License, Version 1.0. (See
+#   accompanying file LICENSE_1_0.txt or copy at
+#   http://www.boost.org/LICENSE_1_0.txt)
+#
+
+# This toolset defines a generator to translate QuickBook to BoostBook. It can
+# be used to generate nice (!) user documentation in different formats
+# (pdf/html/...), from a single text file with simple markup.
+#
+# The toolset defines the QUICKBOOK type (file extension 'qbk') and
+# a QUICKBOOK to XML (BOOSTBOOK) generator.
+#
+#
+#   ===========================================================================
+#   Q & A
+#   ===========================================================================
+#
+#   If you don't know what this is all about, some Q & A will hopefully get you
+#   up to speed with QuickBook and this toolset.
+#
+#
+#   What is QuickBook ?
+#
+#       QuickBook is a WikiWiki style documentation tool geared towards C++
+#       documentation using simple rules and markup for simple formatting tasks.
+#       QuickBook extends the WikiWiki concept. Like the WikiWiki, QuickBook
+#       documents are simple text files. A single QuickBook document can
+#       generate a fully linked set of nice HTML and PostScript/PDF documents
+#       complete with images and syntax-colorized source code.
+#
+#
+#   Where can I get QuickBook ?
+#
+#       Quickbook can be found in Boost's repository, under the tools/quickbook
+#       directory it was added there on Jan 2005, some time after the release of
+#       Boost v1.32.0 and has been an integral part of the Boost distribution
+#       since v1.33.
+#
+#       Here's a link to the SVN repository:
+#           https://svn.boost.org/svn/boost/trunk/tools/quickbook
+#
+#       And to QuickBook's QuickBook-generated docs:
+#           http://www.boost.org/doc/libs/release/tools/quickbook/index.html
+#
+#
+#   How do I use QuickBook and this toolset in my projects ?
+#
+#       The minimal example is:
+#
+#           using boostbook ;
+#           import quickbook ;
+#
+#           boostbook my_docs : my_docs_source.qbk ;
+#
+#       where my_docs is a target name and my_docs_source.qbk is a QuickBook
+#       file. The documentation format to be generated is determined by the
+#       boostbook toolset. By default html documentation should be generated,
+#       but you should check BoostBook's docs to be sure.
+#
+#
+#   What do I need ?
+#
+#       You should start by setting up the BoostBook toolset. Please refer to
+#       boostbook.jam and the BoostBook documentation for information on how to
+#       do this.
+#
+#       A QuickBook executable is also needed. The toolset will generate this
+#       executable if it can find the QuickBook sources. The following
+#       directories will be searched:
+#
+#           BOOST_ROOT/tools/quickbook/
+#           BOOST_BUILD_PATH/../../quickbook/
+#
+#       (BOOST_ROOT and BOOST_BUILD_PATH are environment variables)
+#
+#       If QuickBook sources are not found the toolset will then try to use
+#       the shell command 'quickbook'.
+#
+#
+#   How do I provide a custom QuickBook executable ?
+#
+#       You may put the following in your user-config.jam or site-config.jam:
+#
+#           using quickbook : /path/to/quickbook ;
+#
+#       or, if 'quickbook' can be found in your PATH,
+#
+#           using quickbook : quickbook ;
+#
+#
+#   For convenience three alternatives are tried to get a QuickBook executable:
+#
+#       1.  If the user points us to the a QuickBook executable, that is used.
+#
+#       2.  Otherwise, we search for the QuickBook sources and compile QuickBook
+#           using the default toolset.
+#
+#       3.  As a last resort, we rely on the shell for finding 'quickbook'.
+#
+
+import boostbook ;
+import "class" : new ;
+import feature ;
+import generators ;
+import toolset ;
+import type ;
+import scanner ;
+import project ;
+import targets ;
+import build-system ;
+import path ;
+import common ;
+import errors ;
+
+# The one and only QUICKBOOK type!
+type.register QUICKBOOK : qbk ;
+
+# <quickbook-binary> shell command to run QuickBook
+# <quickbook-binary-dependencies> targets to build QuickBook from sources.
+feature.feature <quickbook-binary> : : free ;
+feature.feature <quickbook-binary-dependencies> : : free dependency ;
+feature.feature <quickbook-define> : : free ;
+feature.feature <quickbook-indent> : : free ;
+feature.feature <quickbook-line-width> : : free ;
+
+
+# quickbook-binary-generator handles generation of the QuickBook executable, by
+# marking it as a dependency for QuickBook docs.
+#
+# If the user supplied the QuickBook command that will be used.
+#
+# Otherwise we search some sensible places for the QuickBook sources and compile
+# from scratch using the default toolset.
+#
+# As a last resort we rely on the shell to find 'quickbook'.
+#
+class quickbook-binary-generator : generator
+{
+    import modules path targets quickbook ;
+
+    rule run ( project name ? : property-set : sources * : multiple ? )
+    {
+        quickbook.freeze-config ;
+        # QuickBook invocation command and dependencies.
+        local quickbook-binary = [ modules.peek quickbook : .quickbook-binary ] ;
+        local quickbook-binary-dependencies ;
+
+        if ! $(quickbook-binary)
+        {
+            # If the QuickBook source directory was found, mark its main target
+            # as a dependency for the current project. Otherwise, try to find
+            # 'quickbook' in user's PATH
+            local quickbook-dir = [ modules.peek quickbook : .quickbook-dir ] ;
+            if $(quickbook-dir)
+            {
+                # Get the main-target in QuickBook directory.
+                local quickbook-main-target = [ targets.resolve-reference $(quickbook-dir) : $(project) ] ;
+
+                # The first element are actual targets, the second are
+                # properties found in target-id. We do not care about these
+                # since we have passed the id ourselves.
+                quickbook-main-target =
+                    [ $(quickbook-main-target[1]).main-target quickbook ] ;
+
+                quickbook-binary-dependencies =
+                    [ $(quickbook-main-target).generate [ $(property-set).propagated ] ] ;
+
+                # Ignore usage-requirements returned as first element.
+                quickbook-binary-dependencies = $(quickbook-binary-dependencies[2-]) ;
+
+                # Some toolsets generate extra targets (e.g. RSP). We must mark
+                # all targets as dependencies for the project, but we will only
+                # use the EXE target for quickbook-to-boostbook translation.
+                for local target in $(quickbook-binary-dependencies)
+                {
+                    if [ $(target).type ] = EXE
+                    {
+                        quickbook-binary = 
+                            [ path.native 
+                                [ path.join
+                                    [ $(target).path ]
+                                    [ $(target).name ]
+                                ]
+                            ] ;
+                    }
+                }
+            }
+        }
+
+        # Add $(quickbook-binary-dependencies) as a dependency of the current
+        # project and set it as the <quickbook-binary> feature for the
+        # quickbook-to-boostbook rule, below.
+        property-set = [ $(property-set).add-raw
+            <dependency>$(quickbook-binary-dependencies)
+            <quickbook-binary>$(quickbook-binary)
+            <quickbook-binary-dependencies>$(quickbook-binary-dependencies)
+        ] ;
+
+        return [ generator.run $(project) $(name) : $(property-set) : $(sources) : $(multiple) ] ;
+    }
+}
+
+
+# Define a scanner for tracking QBK include dependencies.
+#
+class qbk-scanner : common-scanner
+{
+    rule pattern ( )
+    {
+        return "\\[[ ]*include[ ]+([^]]+)\\]" 
+        "\\[[ ]*include:[a-zA-Z0-9_]+[ ]+([^]]+)\\]" 
+        "\\[[ ]*import[ ]+([^]]+)\\]" ;
+    }
+}
+
+
+scanner.register qbk-scanner : include ;
+
+type.set-scanner QUICKBOOK : qbk-scanner ;
+
+
+# Initialization of toolset.
+#
+# Parameters:
+#   command ?    -> path to QuickBook executable.
+#
+# When command is not supplied toolset will search for QuickBook directory and
+# compile the executable from source. If that fails we still search the path for
+# 'quickbook'.
+#
+rule init (
+        command ?   # path to the QuickBook executable.
+    )
+{
+    if $(command)
+    {
+        if $(.config-frozen)
+        {
+            errors.user-error "quickbook: configuration cannot be changed after it has been used." ;
+        }
+        .command = $(command) ;
+    }
+}
+
+rule freeze-config ( )
+{
+    if ! $(.config-frozen)
+    {
+        .config-frozen = true ;
+
+        # QuickBook invocation command and dependencies.
+
+        .quickbook-binary = $(.command) ;
+
+        if $(.quickbook-binary)
+        {
+            # Use user-supplied command.
+            .quickbook-binary = [ common.get-invocation-command quickbook : quickbook : $(.quickbook-binary) ] ;
+        }
+        else
+        {
+            # Search for QuickBook sources in sensible places, like
+            #   $(BOOST_ROOT)/tools/quickbook
+            #   $(BOOST_BUILD_PATH)/../../quickbook
+
+            # And build quickbook executable from sources.
+
+            local boost-root = [ modules.peek : BOOST_ROOT ] ;
+            local boost-build-path = [ build-system.location ] ;
+
+            if $(boost-root)
+            {
+                .quickbook-dir += [ path.join $(boost-root) tools ] ;
+            }
+
+            if $(boost-build-path)
+            {
+                .quickbook-dir += $(boost-build-path)/../.. ;
+            }
+
+            .quickbook-dir = [ path.glob $(.quickbook-dir) : quickbook ] ;
+
+            # If the QuickBook source directory was found, mark its main target
+            # as a dependency for the current project. Otherwise, try to find
+            # 'quickbook' in user's PATH
+            if $(.quickbook-dir)
+            {
+                .quickbook-dir = [ path.make $(.quickbook-dir[1]) ] ;
+            }
+            else
+            {
+                ECHO "QuickBook warning: The path to the quickbook executable was" ;
+                ECHO "  not provided. Additionally, couldn't find QuickBook" ;
+                ECHO "  sources searching in" ;
+                ECHO "    * BOOST_ROOT/tools/quickbook" ;
+                ECHO "    * BOOST_BUILD_PATH/../../quickbook" ;
+                ECHO "  Will now try to find a precompiled executable by searching" ;
+                ECHO "  the PATH for 'quickbook'." ;
+                ECHO "  To disable this warning in the future, or to completely" ;
+                ECHO "  avoid compilation of quickbook, you can explicitly set the" ;
+                ECHO "  path to a quickbook executable command in user-config.jam" ;
+                ECHO "  or site-config.jam with the call" ;
+                ECHO "    using quickbook : /path/to/quickbook ;" ;
+
+                # As a last resort, search for 'quickbook' command in path. Note
+                # that even if the 'quickbook' command is not found,
+                # get-invocation-command will still return 'quickbook' and might
+                # generate an error while generating the virtual-target.
+
+                .quickbook-binary = [ common.get-invocation-command quickbook : quickbook ] ;
+            }
+        }
+    }
+}
+
+
+generators.register [ new quickbook-binary-generator quickbook.quickbook-to-boostbook : QUICKBOOK : XML ] ;
+
+
+# <quickbook-binary> shell command to run QuickBook
+# <quickbook-binary-dependencies> targets to build QuickBook from sources.
+toolset.flags quickbook.quickbook-to-boostbook QB-COMMAND      <quickbook-binary> ;
+toolset.flags quickbook.quickbook-to-boostbook QB-DEPENDENCIES <quickbook-binary-dependencies> ;
+toolset.flags quickbook.quickbook-to-boostbook INCLUDES        <include> ;
+toolset.flags quickbook.quickbook-to-boostbook QB-DEFINES      <quickbook-define> ;
+toolset.flags quickbook.quickbook-to-boostbook QB-INDENT       <quickbook-indent> ;
+toolset.flags quickbook.quickbook-to-boostbook QB-LINE-WIDTH   <quickbook-line-width> ;
+
+
+rule quickbook-to-boostbook ( target : source : properties * )
+{
+    # Signal dependency of quickbook sources on <quickbook-binary-dependencies>
+    # upon invocation of quickbook-to-boostbook.
+    DEPENDS $(target) : [ on $(target) return $(QB-DEPENDENCIES) ] ;
+}
+
+
+actions quickbook-to-boostbook
+{
+    "$(QB-COMMAND)" -I"$(INCLUDES)" -D"$(QB-DEFINES)" --indent="$(QB-INDENT)" --linewidth="$(QB-LINE-WIDTH)" --output-file="$(1)" "$(2)"
+}
+
+
+# Declare a main target to convert a quickbook source into a boostbook XML file.
+#
+rule to-boostbook ( target-name : sources * : requirements * : default-build * )
+{ 
+  local project = [ project.current ] ;
+    
+  targets.main-target-alternative 
+    [ new typed-target $(target-name) : $(project) : XML
+        : [ targets.main-target-sources $(sources) : $(target-name) ] 
+        : [ targets.main-target-requirements $(requirements) : $(project) ]
+        : [ targets.main-target-default-build $(default-build) : $(project) ] 
+    ] ;
+}
diff --git a/jam-files/boost-build/tools/rc.jam b/jam-files/boost-build/tools/rc.jam
new file mode 100644
index 00000000..9964d339
--- /dev/null
+++ b/jam-files/boost-build/tools/rc.jam
@@ -0,0 +1,156 @@
+#  Copyright (C) Andre Hentz 2003. Permission to copy, use, modify, sell and
+#  distribute this software is granted provided this copyright notice appears in
+#  all copies. This software is provided "as is" without express or implied
+#  warranty, and with no claim as to its suitability for any purpose.
+#  
+#  Copyright (c) 2006 Rene Rivera.
+#
+#  Use, modification and distribution is subject to the Boost Software
+#  License Version 1.0. (See accompanying file LICENSE_1_0.txt or
+#  http://www.boost.org/LICENSE_1_0.txt)
+
+import type ;
+import generators ;
+import feature ;
+import errors ;
+import scanner ;
+import toolset : flags ;
+
+if [ MATCH (--debug-configuration) : [ modules.peek : ARGV ] ]
+{
+    .debug-configuration = true ;
+}
+
+type.register RC : rc ;
+
+rule init ( )
+{
+}
+
+# Configures a new resource compilation command specific to a condition,
+# usually a toolset selection condition. The possible options are:
+#
+#     * <rc-type>(rc|windres) - Indicates the type of options the command
+#       accepts.
+#
+# Even though the arguments are all optional, only when a command, condition,
+# and at minimum the rc-type option are given will the command be configured.
+# This is so that callers don't have to check auto-configuration values
+# before calling this. And still get the functionality of build failures when
+# the resource compiler can't be found.
+#
+rule configure ( command ? : condition ? : options * )
+{
+    local rc-type = [ feature.get-values <rc-type> : $(options) ] ;
+
+    if $(command) && $(condition) && $(rc-type)
+    {
+        flags rc.compile.resource .RC $(condition) : $(command) ;
+        flags rc.compile.resource .RC_TYPE $(condition) : $(rc-type:L) ;
+        flags rc.compile.resource DEFINES <define> ;
+        flags rc.compile.resource INCLUDES <include> ;
+        if $(.debug-configuration)
+        {
+            ECHO notice: using rc compiler :: $(condition) :: $(command) ;
+        }
+    }
+}
+
+rule compile.resource ( target : sources * : properties * )
+{
+    local rc-type = [ on $(target) return $(.RC_TYPE) ] ;
+    rc-type ?= null ;
+    compile.resource.$(rc-type) $(target) : $(sources[1]) ;
+}
+
+actions compile.resource.rc
+{
+    "$(.RC)" -l 0x409 "-U$(UNDEFS)" "-D$(DEFINES)" -I"$(>:D)" -I"$(<:D)" -I"$(INCLUDES)" -fo "$(<)" "$(>)"
+}
+
+actions compile.resource.windres
+{
+    "$(.RC)" "-U$(UNDEFS)" "-D$(DEFINES)" -I"$(>:D)" -I"$(<:D)" -I"$(INCLUDES)" -o "$(<)" -i "$(>)"
+}
+
+actions quietly compile.resource.null
+{
+    as /dev/null -o "$(<)"
+}
+
+# Since it's a common practice to write
+# exe hello : hello.cpp hello.rc
+# we change the name of object created from RC file, to
+# avoid conflict with hello.cpp.
+# The reason we generate OBJ and not RES, is that gcc does not
+# seem to like RES files, but works OK with OBJ.
+# See http://article.gmane.org/gmane.comp.lib.boost.build/5643/
+#
+# Using 'register-c-compiler' adds the build directory to INCLUDES
+generators.register-c-compiler rc.compile.resource : RC : OBJ(%_res) ;
+
+# Register scanner for resources
+class res-scanner : scanner 
+{
+    import regex virtual-target path scanner ;    
+    
+    rule __init__ ( includes * )
+    {
+        scanner.__init__ ;
+    
+        self.includes = $(includes) ;
+    }    
+
+    rule pattern ( )
+    {
+        return "(([^ ]+[ ]+(BITMAP|CURSOR|FONT|ICON|MESSAGETABLE|RT_MANIFEST)[ ]+([^ \"]+|\"[^\"]+\"))|(#include[ ]*(<[^<]+>|\"[^\"]+\")))" ;
+    }
+
+    rule process ( target : matches * : binding )
+    {
+        local angle = [ regex.transform $(matches) : "#include[ ]*<([^<]+)>" ] ;
+        local quoted = [ regex.transform $(matches) : "#include[ ]*\"([^\"]+)\"" ] ;
+        local res = [ regex.transform $(matches) : "[^ ]+[ ]+(BITMAP|CURSOR|FONT|ICON|MESSAGETABLE|RT_MANIFEST)[ ]+(([^ \"]+)|\"([^\"]+)\")" : 3 4 ] ;
+
+        # Icons and other includes may referenced as 
+        #
+        # IDR_MAINFRAME ICON "res\\icon.ico"
+        #
+        # so we have to replace double backslashes to single ones.
+        res = [ regex.replace-list $(res) : "\\\\\\\\" : "/" ] ;
+
+        # CONSIDER: the new scoping rule seem to defeat "on target" variables.
+        local g = [ on $(target) return $(HDRGRIST) ] ;  
+        local b = [ NORMALIZE_PATH $(binding:D) ] ;
+
+        # Attach binding of including file to included targets.
+        # When target is directly created from virtual target
+        # this extra information is unnecessary. But in other
+        # cases, it allows to distinguish between two headers of the 
+        # same name included from different places.      
+        # We don't need this extra information for angle includes,
+        # since they should not depend on including file (we can't
+        # get literal "." in include path).
+        local g2 = $(g)"#"$(b) ;
+       
+        angle = $(angle:G=$(g)) ;
+        quoted = $(quoted:G=$(g2)) ;
+        res = $(res:G=$(g2)) ;
+        
+        local all = $(angle) $(quoted) ;
+
+        INCLUDES $(target) : $(all) ;
+        DEPENDS $(target) : $(res) ;
+        NOCARE $(all) $(res) ;
+        SEARCH on $(angle) = $(self.includes:G=) ;
+        SEARCH on $(quoted) = $(b) $(self.includes:G=) ;
+        SEARCH on $(res) = $(b) $(self.includes:G=) ;
+        
+        # Just propagate current scanner to includes, in a hope
+        # that includes do not change scanners. 
+        scanner.propagate $(__name__) : $(angle) $(quoted) : $(target) ;
+    }        
+}
+
+scanner.register res-scanner : include ;
+type.set-scanner RC : res-scanner ;
diff --git a/jam-files/boost-build/tools/rc.py b/jam-files/boost-build/tools/rc.py
new file mode 100644
index 00000000..0b82d231
--- /dev/null
+++ b/jam-files/boost-build/tools/rc.py
@@ -0,0 +1,189 @@
+# Status: being ported by Steven Watanabe
+# Base revision: 47077
+#
+#  Copyright (C) Andre Hentz 2003. Permission to copy, use, modify, sell and
+#  distribute this software is granted provided this copyright notice appears in
+#  all copies. This software is provided "as is" without express or implied
+#  warranty, and with no claim as to its suitability for any purpose.
+#  
+#  Copyright (c) 2006 Rene Rivera.
+#
+#  Copyright (c) 2008 Steven Watanabe
+#
+#  Use, modification and distribution is subject to the Boost Software
+#  License Version 1.0. (See accompanying file LICENSE_1_0.txt or
+#  http://www.boost.org/LICENSE_1_0.txt)
+
+##import type ;
+##import generators ;
+##import feature ;
+##import errors ;
+##import scanner ;
+##import toolset : flags ;
+
+from b2.build import type, toolset, generators, scanner, feature
+from b2.tools import builtin
+from b2.util import regex
+from b2.build.toolset import flags
+from b2.manager import get_manager
+
+__debug = None
+
+def debug():
+    global __debug
+    if __debug is None:
+        __debug = "--debug-configuration" in bjam.variable("ARGV")        
+    return __debug
+
+type.register('RC', ['rc'])
+
+def init():
+    pass
+
+def configure (command = None, condition = None, options = None):
+    """
+        Configures a new resource compilation command specific to a condition,
+        usually a toolset selection condition. The possible options are:
+        
+            * <rc-type>(rc|windres) - Indicates the type of options the command
+              accepts.
+        
+        Even though the arguments are all optional, only when a command, condition,
+        and at minimum the rc-type option are given will the command be configured.
+        This is so that callers don't have to check auto-configuration values
+        before calling this. And still get the functionality of build failures when
+        the resource compiler can't be found.
+    """
+    rc_type = feature.get_values('<rc-type>', options)
+    if rc_type:
+        assert(len(rc_type) == 1)
+        rc_type = rc_type[0]
+
+    if command and condition and rc_type:
+        flags('rc.compile.resource', '.RC', condition, command)
+        flags('rc.compile.resource', '.RC_TYPE', condition, rc_type.lower())
+        flags('rc.compile.resource', 'DEFINES', [], ['<define>'])
+        flags('rc.compile.resource', 'INCLUDES', [], ['<include>'])
+        if debug():
+            print 'notice: using rc compiler ::', condition, '::', command
+
+engine = get_manager().engine()
+
+class RCAction:
+    """Class representing bjam action defined from Python.
+    The function must register the action to execute."""
+    
+    def __init__(self, action_name, function):
+        self.action_name = action_name
+        self.function = function
+            
+    def __call__(self, targets, sources, property_set):
+        if self.function:
+            self.function(targets, sources, property_set)
+
+# FIXME: What is the proper way to dispatch actions?
+def rc_register_action(action_name, function = None):
+    global engine
+    if engine.actions.has_key(action_name):
+        raise "Bjam action %s is already defined" % action_name
+    engine.actions[action_name] = RCAction(action_name, function)
+
+def rc_compile_resource(targets, sources, properties):
+    rc_type = bjam.call('get-target-variable', targets, '.RC_TYPE')
+    global engine
+    engine.set_update_action('rc.compile.resource.' + rc_type, targets, sources, properties)
+
+rc_register_action('rc.compile.resource', rc_compile_resource)
+
+
+engine.register_action(
+    'rc.compile.resource.rc',
+    '"$(.RC)" -l 0x409 "-U$(UNDEFS)" "-D$(DEFINES)" -I"$(>:D)" -I"$(<:D)" -I"$(INCLUDES)" -fo "$(<)" "$(>)"')
+
+engine.register_action(
+    'rc.compile.resource.windres',
+    '"$(.RC)" "-U$(UNDEFS)" "-D$(DEFINES)" -I"$(>:D)" -I"$(<:D)" -I"$(INCLUDES)" -o "$(<)" -i "$(>)"')
+
+# FIXME: this was originally declared quietly
+engine.register_action(
+    'compile.resource.null',
+    'as /dev/null -o "$(<)"')
+
+# Since it's a common practice to write
+# exe hello : hello.cpp hello.rc
+# we change the name of object created from RC file, to
+# avoid conflict with hello.cpp.
+# The reason we generate OBJ and not RES, is that gcc does not
+# seem to like RES files, but works OK with OBJ.
+# See http://article.gmane.org/gmane.comp.lib.boost.build/5643/
+#
+# Using 'register-c-compiler' adds the build directory to INCLUDES
+# FIXME: switch to generators
+builtin.register_c_compiler('rc.compile.resource', ['RC'], ['OBJ(%_res)'], [])
+
+__angle_include_re = "#include[ ]*<([^<]+)>"
+
+# Register scanner for resources
+class ResScanner(scanner.Scanner):
+    
+    def __init__(self, includes):
+        scanner.__init__ ;
+        self.includes = includes
+
+    def pattern(self):
+        return "(([^ ]+[ ]+(BITMAP|CURSOR|FONT|ICON|MESSAGETABLE|RT_MANIFEST)" +\
+               "[ ]+([^ \"]+|\"[^\"]+\"))|(#include[ ]*(<[^<]+>|\"[^\"]+\")))" ;
+
+    def process(self, target, matches, binding):
+
+        angle = regex.transform(matches, "#include[ ]*<([^<]+)>")
+        quoted = regex.transform(matches, "#include[ ]*\"([^\"]+)\"")
+        res = regex.transform(matches,
+                              "[^ ]+[ ]+(BITMAP|CURSOR|FONT|ICON|MESSAGETABLE|RT_MANIFEST)" +\
+                              "[ ]+(([^ \"]+)|\"([^\"]+)\")", [3, 4])
+
+        # Icons and other includes may referenced as 
+        #
+        # IDR_MAINFRAME ICON "res\\icon.ico"
+        #
+        # so we have to replace double backslashes to single ones.
+        res = [ re.sub(r'\\\\', '/', match) for match in res ]
+
+        # CONSIDER: the new scoping rule seem to defeat "on target" variables.
+        g = bjam.call('get-target-variable', target, 'HDRGRIST')
+        b = os.path.normalize_path(os.path.dirname(binding))
+
+        # Attach binding of including file to included targets.
+        # When target is directly created from virtual target
+        # this extra information is unnecessary. But in other
+        # cases, it allows to distinguish between two headers of the 
+        # same name included from different places.      
+        # We don't need this extra information for angle includes,
+        # since they should not depend on including file (we can't
+        # get literal "." in include path).
+        g2 = g + "#" + b
+       
+        g = "<" + g + ">"
+        g2 = "<" + g2 + ">"
+        angle = [g + x for x in angle]
+        quoted = [g2 + x for x in quoted]
+        res = [g2 + x for x in res]
+        
+        all = angle + quoted
+
+        bjam.call('mark-included', target, all)
+
+        engine = get_manager().engine()
+
+        engine.add_dependency(target, res)
+        bjam.call('NOCARE', all + res)
+        engine.set_target_variable(angle, 'SEARCH', ungrist(self.includes))
+        engine.set_target_variable(quoted, 'SEARCH', b + ungrist(self.includes))
+        engine.set_target_variable(res, 'SEARCH', b + ungrist(self.includes)) ;
+        
+        # Just propagate current scanner to includes, in a hope
+        # that includes do not change scanners.
+        get_manager().scanners().propagate(self, angle + quoted)
+
+scanner.register(ResScanner, 'include')
+type.set_scanner('RC', ResScanner)
diff --git a/jam-files/boost-build/tools/stage.jam b/jam-files/boost-build/tools/stage.jam
new file mode 100644
index 00000000..296e7558
--- /dev/null
+++ b/jam-files/boost-build/tools/stage.jam
@@ -0,0 +1,524 @@
+# Copyright 2003 Dave Abrahams
+# Copyright 2005, 2006 Rene Rivera
+# Copyright 2002, 2003, 2004, 2005, 2006 Vladimir Prus
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+# This module defines the 'install' rule, used to copy a set of targets to a
+# single location.
+
+import targets ;
+import "class" : new ;
+import errors ;
+import type ;
+import generators ;
+import feature ;
+import project ;
+import virtual-target ;
+import path ;
+import types/register ;
+
+
+feature.feature <install-dependencies> : off on : incidental      ;
+feature.feature <install-type>         :        : free incidental ;
+feature.feature <install-source-root>  :        : free path       ;
+feature.feature <so-version>           :        : free incidental ;
+
+# If 'on', version symlinks for shared libraries will not be created. Affects
+# Unix builds only.
+feature.feature <install-no-version-symlinks> : on : optional incidental ;
+
+
+class install-target-class : basic-target
+{
+    import feature ;
+    import project ;
+    import type ;
+    import errors ;
+    import generators ;
+    import path ;
+    import stage ;
+    import "class" : new ;
+    import property ;
+    import property-set ;
+
+    rule __init__ ( name-and-dir : project : sources * : requirements * : default-build * )
+    {
+        basic-target.__init__ $(name-and-dir) : $(project) : $(sources) :
+            $(requirements) : $(default-build) ;
+    }
+
+    # If <location> is not set, sets it based on the project data.
+    #
+    rule update-location ( property-set )
+    {
+        local loc = [ $(property-set).get <location> ] ;
+        if ! $(loc)
+        {
+            loc = [ path.root $(self.name) [ $(self.project).get location ] ] ;
+            property-set = [ $(property-set).add-raw $(loc:G=<location>) ] ;
+        }
+
+        return $(property-set) ;
+    }
+
+    # Takes a target that is installed and a property set which is used when
+    # installing.
+    #
+    rule adjust-properties ( target : build-property-set )
+    {
+        local ps-raw ;
+        local a = [ $(target).action ] ;
+        if $(a)
+        {
+            local ps = [ $(a).properties ] ;
+            ps-raw = [ $(ps).raw ] ;
+
+            # Unless <hardcode-dll-paths>true is in properties, which can happen
+            # only if the user has explicitly requested it, nuke all <dll-path>
+            # properties.
+            if [ $(build-property-set).get <hardcode-dll-paths> ] != true
+            {
+                ps-raw = [ property.change $(ps-raw) : <dll-path> ] ;
+            }
+
+            # If any <dll-path> properties were specified for installing, add
+            # them.
+            local l = [ $(build-property-set).get <dll-path> ] ;
+            ps-raw += $(l:G=<dll-path>) ;
+
+            # Also copy <linkflags> feature from current build set, to be used
+            # for relinking.
+            local l = [ $(build-property-set).get <linkflags> ] ;
+            ps-raw += $(l:G=<linkflags>) ;
+
+            # Remove the <tag> feature on original targets.
+            ps-raw = [ property.change $(ps-raw) : <tag> ] ;
+
+            # And <location>. If stage target has another stage target in
+            # sources, then we shall get virtual targets with the <location>
+            # property set.
+            ps-raw = [ property.change $(ps-raw) : <location> ] ;
+        }
+
+        local d = [ $(build-property-set).get <dependency> ] ;
+        ps-raw += $(d:G=<dependency>) ;
+
+        local d = [ $(build-property-set).get <location> ] ;
+        ps-raw += $(d:G=<location>) ;
+
+        local ns = [ $(build-property-set).get <install-no-version-symlinks> ] ;
+        ps-raw += $(ns:G=<install-no-version-symlinks>) ;
+
+        local d = [ $(build-property-set).get <install-source-root> ] ;
+        # Make the path absolute: we shall use it to compute relative paths and
+        # making the path absolute will help.
+        if $(d)
+        {
+            d = [ path.root $(d) [ path.pwd ] ] ;
+            ps-raw += $(d:G=<install-source-root>) ;
+        }
+
+        if $(ps-raw)
+        {
+            return [ property-set.create $(ps-raw) ]  ;
+        }
+        else
+        {
+            return [ property-set.empty ] ;
+        }
+    }
+
+    rule construct ( name : source-targets * : property-set )
+    {
+        source-targets = [ targets-to-stage $(source-targets) :
+            $(property-set) ] ;
+
+        property-set = [ update-location $(property-set) ] ;
+
+        local ename = [ $(property-set).get <name> ] ;
+
+        if $(ename) && $(source-targets[2])
+        {
+            errors.error "When <name> property is used in 'install', only one"
+                "source is allowed" ;
+        }
+
+        local result ;
+        for local i in $(source-targets)
+        {
+            local staged-targets ;
+
+            local new-properties = [ adjust-properties $(i) :
+                $(property-set) ] ;
+
+            # See if something special should be done when staging this type. It
+            # is indicated by the presence of a special "INSTALLED_" type.
+            local t = [ $(i).type ] ;
+            if $(t) && [ type.registered INSTALLED_$(t) ]
+            {
+                if $(ename)
+                {
+                    errors.error "In 'install': <name> property specified with target that requires relinking." ;
+                }
+                else
+                {
+                    local targets = [ generators.construct $(self.project)
+                        $(name) : INSTALLED_$(t) : $(new-properties) : $(i) ] ;
+                    staged-targets += $(targets[2-]) ;
+                }
+            }
+            else
+            {
+                staged-targets = [ stage.copy-file $(self.project) $(ename) :
+                    $(i) : $(new-properties) ] ;
+            }
+
+            if ! $(staged-targets)
+            {
+                errors.error "Unable to generate staged version of " [ $(source).str ] ;
+            }
+
+            for t in $(staged-targets)
+            {
+                result += [ virtual-target.register $(t) ] ;
+            }
+        }
+
+        return [ property-set.empty ] $(result) ;
+    }
+
+    # Given the list of source targets explicitly passed to 'stage', returns the
+    # list of targets which must be staged.
+    #
+    rule targets-to-stage ( source-targets * : property-set )
+    {
+        local result ;
+
+        # Traverse the dependencies, if needed.
+        if [ $(property-set).get <install-dependencies> ] = "on"
+        {
+            source-targets = [ collect-targets $(source-targets) ] ;
+        }
+
+        # Filter the target types, if needed.
+        local included-types = [ $(property-set).get <install-type> ] ;
+        for local r in $(source-targets)
+        {
+            local ty = [ $(r).type ] ;
+            if $(ty)
+            {
+                # Do not stage searched libs.
+                if $(ty) != SEARCHED_LIB
+                {
+                    if $(included-types)
+                    {
+                        if [ include-type $(ty) : $(included-types) ]
+                        {
+                            result += $(r) ;
+                        }
+                    }
+                    else
+                    {
+                        result += $(r) ;
+                    }
+                }
+            }
+            else if ! $(included-types)
+            {
+                # Don't install typeless target if there is an explicit list of
+                # allowed types.
+                result += $(r) ;
+            }
+        }
+
+        return $(result) ;
+    }
+
+    # CONSIDER: figure out why we can not use virtual-target.traverse here.
+    #
+    rule collect-targets ( targets * )
+    {
+        # Find subvariants
+        local s ;
+        for local t in $(targets)
+        {
+            s += [ $(t).creating-subvariant ] ;
+        }
+        s = [ sequence.unique $(s) ] ;
+        
+        local result = [ new set ] ;
+        $(result).add $(targets) ;
+        
+        for local i in $(s)
+        {
+            $(i).all-referenced-targets $(result) ;
+        }
+        local result2 ;
+        for local r in [ $(result).list ]
+        {
+            if $(r:G) != <use>
+            {
+                result2 += $(r:G=) ;
+            }
+        }
+        DELETE_MODULE $(result) ;
+        result = [ sequence.unique $(result2) ] ;
+    }
+
+    # Returns true iff 'type' is subtype of some element of 'types-to-include'.
+    #
+    local rule include-type ( type : types-to-include * )
+    {
+        local found ;
+        while $(types-to-include) && ! $(found)
+        {
+            if [ type.is-subtype $(type) $(types-to-include[1]) ]
+            {
+                found = true ;
+            }
+            types-to-include = $(types-to-include[2-]) ;
+        }
+
+        return $(found) ;
+    }
+}
+
+
+# Creates a copy of target 'source'. The 'properties' object should have a
+# <location> property which specifies where the target must be placed.
+#
+rule copy-file ( project name ? : source : properties )
+{
+    name ?= [ $(source).name ] ;
+    local relative ;
+
+    local new-a = [ new non-scanning-action $(source) : common.copy :
+        $(properties) ] ;
+    local source-root = [ $(properties).get <install-source-root> ] ;
+    if $(source-root)
+    {
+        # Get the real path of the target. We probably need to strip relative
+        # path from the target name at construction.
+        local path = [ $(source).path ] ;
+        path = [ path.root $(name:D) $(path) ] ;
+        # Make the path absolute. Otherwise, it would be hard to compute the
+        # relative path. The 'source-root' is already absolute, see the
+        # 'adjust-properties' method above.
+        path = [ path.root $(path) [ path.pwd ] ] ;
+
+        relative = [ path.relative-to $(source-root) $(path) ] ;
+    }
+
+    # Note: Using $(name:D=$(relative)) might be faster here, but then we would
+    # need to explicitly check that relative is not ".", otherwise we might get
+    # paths like '<prefix>/boost/.', try to create it and mkdir would obviously
+    # fail.
+    name = [ path.join $(relative) $(name:D=) ] ;
+
+    return [ new file-target $(name) exact : [ $(source).type ] : $(project) :
+        $(new-a) ] ;
+}
+
+
+rule symlink ( name : project : source : properties )
+{
+    local a = [ new action $(source) : symlink.ln : $(properties) ] ;
+    return [ new file-target $(name) exact : [ $(source).type ] : $(project) :
+        $(a) ] ;
+}
+
+
+rule relink-file ( project : source : property-set  )
+{
+    local action = [ $(source).action ] ;
+    local cloned-action = [ virtual-target.clone-action $(action) : $(project) :
+        "" : $(property-set) ] ;
+    return [ $(cloned-action).targets ] ;
+}
+
+
+# Declare installed version of the EXE type. Generator for this type will cause
+# relinking to the new location.
+type.register INSTALLED_EXE : : EXE ;
+
+
+class installed-exe-generator : generator
+{
+    import type ;
+    import property-set ;
+    import modules ;
+    import stage ;
+
+    rule __init__ ( )
+    {
+        generator.__init__ install-exe : EXE : INSTALLED_EXE ;
+    }
+
+    rule run ( project name ? : property-set : source : multiple ? )
+    {
+        local need-relink ;
+        
+        if [ $(property-set).get <os> ] in NT CYGWIN ||
+            [ $(property-set).get <target-os> ] in windows cygwin
+        {
+        }
+        else
+        {
+            # See if the dll-path properties are not changed during
+            # install. If so, copy, don't relink.
+            local a = [ $(source).action ] ;
+            local p = [ $(a).properties ] ;
+            local original = [ $(p).get <dll-path> ] ;
+            local current = [ $(property-set).get <dll-path> ] ;
+            
+            if $(current) != $(original)
+            {
+                need-relink = true ;
+            }            
+        }
+        
+            
+        if $(need-relink)
+        {
+            return [ stage.relink-file $(project)
+              : $(source) : $(property-set) ] ;
+        }
+        else
+        {
+            return [ stage.copy-file $(project)
+              : $(source) : $(property-set) ] ;
+        }
+    }
+}
+
+
+generators.register [ new installed-exe-generator ] ;
+
+
+# Installing a shared link on Unix might cause a creation of versioned symbolic
+# links.
+type.register INSTALLED_SHARED_LIB : : SHARED_LIB ;
+
+
+class installed-shared-lib-generator : generator
+{
+    import type ;
+    import property-set ;
+    import modules ;
+    import stage ;
+
+    rule __init__ ( )
+    {
+        generator.__init__ install-shared-lib : SHARED_LIB
+          : INSTALLED_SHARED_LIB ;
+    }
+
+    rule run ( project name ? : property-set : source : multiple ? )
+    {
+        if [ $(property-set).get <os> ] in NT CYGWIN ||
+            [ $(property-set).get <target-os> ] in windows cygwin
+        {
+            local copied = [ stage.copy-file $(project) : $(source) :
+                $(property-set) ] ;
+            return [ virtual-target.register $(copied) ] ;
+        }
+        else
+        {
+            local a = [ $(source).action ] ;
+            local copied ;
+            if ! $(a)
+            {
+                # Non-derived file, just copy.
+                copied = [ stage.copy-file $(project) : $(source) :
+                    $(property-set) ] ;
+            }
+            else
+            {
+                local cp = [ $(a).properties ] ;
+                local current-dll-path = [ $(cp).get <dll-path> ] ;
+                local new-dll-path = [ $(property-set).get <dll-path> ] ;
+
+                if $(current-dll-path) != $(new-dll-path)
+                {
+                    # Rpath changed, need to relink.
+                    copied = [ stage.relink-file $(project) : $(source) :
+                        $(property-set) ] ;
+                }
+                else
+                {
+                    copied = [ stage.copy-file $(project) : $(source) :
+                        $(property-set) ] ;
+                }
+            }
+
+            copied = [ virtual-target.register $(copied) ] ;
+
+            local result = $(copied) ;
+            # If the name is in the form NNN.XXX.YYY.ZZZ, where all 'X', 'Y' and
+            # 'Z' are numbers, we need to create NNN.XXX and NNN.XXX.YYY
+            # symbolic links.
+            local m = [ MATCH (.*)\\.([0123456789]+)\\.([0123456789]+)\\.([0123456789]+)$
+                : [ $(copied).name ] ] ;
+            if $(m)
+            {
+                # Symlink without version at all is used to make
+                # -lsome_library work.
+                result += [ stage.symlink $(m[1]) : $(project) : $(copied) :
+                    $(property-set) ] ;
+
+                # Symlinks of some libfoo.N and libfoo.N.M are used so that
+                # library can found at runtime, if libfoo.N.M.X has soname of
+                # libfoo.N. That happens when the library makes some binary
+                # compatibility guarantees. If not, it is possible to skip those
+                # symlinks.
+                local suppress =
+                    [ $(property-set).get <install-no-version-symlinks> ] ;
+
+                if $(suppress) != "on"
+                {
+                    result += [ stage.symlink $(m[1]).$(m[2]) : $(project)
+                      : $(copied) : $(property-set) ] ;
+                    result += [ stage.symlink $(m[1]).$(m[2]).$(m[3])  : $(project)
+                      : $(copied) : $(property-set) ] ;
+                }
+            }
+
+            return $(result) ;
+        }
+    }
+}
+
+generators.register [ new installed-shared-lib-generator ] ;
+
+
+# Main target rule for 'install'.
+#
+rule install ( name : sources * : requirements * : default-build * )
+{
+    local project = [ project.current ] ;
+
+    # Unless the user has explicitly asked us to hardcode dll paths, add
+    # <hardcode-dll-paths>false in requirements, to override default value.
+    if ! <hardcode-dll-paths>true in $(requirements)
+    {
+        requirements += <hardcode-dll-paths>false ;
+    }
+
+    if <tag> in $(requirements:G)
+    {
+        errors.user-error
+            "The <tag> property is not allowed for the 'install' rule" ;
+    }
+
+    targets.main-target-alternative
+      [ new install-target-class $(name) : $(project)
+        : [ targets.main-target-sources $(sources) : $(name) ]
+        : [ targets.main-target-requirements $(requirements) : $(project) ]
+        : [ targets.main-target-default-build $(default-build) : $(project) ]
+      ] ;
+}
+
+
+IMPORT $(__name__) : install : : install ;
+IMPORT $(__name__) : install : : stage ;
diff --git a/jam-files/boost-build/tools/stage.py b/jam-files/boost-build/tools/stage.py
new file mode 100644
index 00000000..25eccbe5
--- /dev/null
+++ b/jam-files/boost-build/tools/stage.py
@@ -0,0 +1,350 @@
+# Status: ported.
+# Base revision 64444.
+#
+# Copyright 2003 Dave Abrahams
+# Copyright 2005, 2006 Rene Rivera
+# Copyright 2002, 2003, 2004, 2005, 2006, 2010 Vladimir Prus
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+# This module defines the 'install' rule, used to copy a set of targets to a
+# single location.
+
+import b2.build.feature as feature
+import b2.build.targets as targets
+import b2.build.property as property
+import b2.build.property_set as property_set
+import b2.build.generators as generators
+import b2.build.virtual_target as virtual_target
+
+from b2.manager import get_manager
+from b2.util.sequence import unique
+from b2.util import bjam_signature
+
+import b2.build.type
+
+import os.path
+import re
+import types
+
+feature.feature('install-dependencies', ['off', 'on'], ['incidental'])
+feature.feature('install-type', [], ['free', 'incidental'])
+feature.feature('install-source-root', [], ['free', 'path'])
+feature.feature('so-version', [], ['free', 'incidental'])
+
+# If 'on', version symlinks for shared libraries will not be created. Affects
+# Unix builds only.
+feature.feature('install-no-version-symlinks', ['on'], ['optional', 'incidental'])
+
+class InstallTargetClass(targets.BasicTarget):
+
+    def update_location(self, ps):
+        """If <location> is not set, sets it based on the project data."""
+
+        loc = ps.get('location')
+        if not loc:
+            loc = os.path.join(self.project().get('location'), self.name())
+            ps = ps.add_raw(["<location>" + loc])
+
+        return ps
+
+    def adjust_properties(self, target, build_ps):
+        a = target.action()
+        properties = []
+        if a:
+            ps = a.properties()
+            properties = ps.all()
+            
+            # Unless <hardcode-dll-paths>true is in properties, which can happen
+            # only if the user has explicitly requested it, nuke all <dll-path>
+            # properties.
+
+            if build_ps.get('hardcode-dll-paths') != ['true']:
+                properties = [p for p in properties if p.feature().name() != 'dll-path']
+
+            # If any <dll-path> properties were specified for installing, add
+            # them.
+            properties.extend(build_ps.get_properties('dll-path'))
+
+            # Also copy <linkflags> feature from current build set, to be used
+            # for relinking.
+            properties.extend(build_ps.get_properties('linkflags'))
+
+            # Remove the <tag> feature on original targets.
+            # And <location>. If stage target has another stage target in
+            # sources, then we shall get virtual targets with the <location>
+            # property set.
+            properties = [p for p in properties
+                          if not p.feature().name() in ['tag', 'location']]
+
+        properties.extend(build_ps.get_properties('dependency'))
+
+        properties.extend(build_ps.get_properties('location'))
+        
+
+        properties.extend(build_ps.get_properties('install-no-version-symlinks'))
+
+        d = build_ps.get_properties('install-source-root')
+
+        # Make the path absolute: we shall use it to compute relative paths and
+        # making the path absolute will help.
+        if d:
+            p = d[0]
+            properties.append(property.Property(p.feature(), os.path.abspath(p.value())))
+
+        return property_set.create(properties)
+    
+
+    def construct(self, name, source_targets, ps):
+
+        source_targets = self.targets_to_stage(source_targets, ps)
+        ps = self.update_location(ps)
+
+        ename = ps.get('name')
+        if ename:
+            ename = ename[0]
+        if ename and len(source_targets) > 1:
+            get_manager().errors()("When <name> property is used in 'install', only one source is allowed")
+
+        result = []
+
+        for i in source_targets:
+
+            staged_targets = []
+            new_ps = self.adjust_properties(i, ps)
+
+            # See if something special should be done when staging this type. It
+            # is indicated by the presence of a special "INSTALLED_" type.
+            t = i.type()
+            if t and b2.build.type.registered("INSTALLED_" + t):
+
+                if ename:
+                    get_manager().errors()("In 'install': <name> property specified with target that requires relinking.")
+                else:
+                    (r, targets) = generators.construct(self.project(), name, "INSTALLED_" + t,
+                                                        new_ps, [i])
+                    assert isinstance(r, property_set.PropertySet)
+                    staged_targets.extend(targets)
+                    
+            else:
+                staged_targets.append(copy_file(self.project(), ename, i, new_ps))
+
+            if not staged_targets:
+                get_manager().errors()("Unable to generate staged version of " + i)
+
+            result.extend(get_manager().virtual_targets().register(t) for t in staged_targets)
+
+        return (property_set.empty(), result)
+
+    def targets_to_stage(self, source_targets, ps):
+        """Given the list of source targets explicitly passed to 'stage', returns the
+        list of targets which must be staged."""
+
+        result = []
+
+        # Traverse the dependencies, if needed.
+        if ps.get('install-dependencies') == ['on']:
+            source_targets = self.collect_targets(source_targets)
+
+        # Filter the target types, if needed.
+        included_types = ps.get('install-type')
+        for r in source_targets:
+            ty = r.type()
+            if ty:
+                # Do not stage searched libs.
+                if ty != "SEARCHED_LIB":
+                    if included_types:
+                        if self.include_type(ty, included_types):
+                            result.append(r)
+                    else:
+                        result.append(r)
+            elif not included_types:
+                # Don't install typeless target if there is an explicit list of
+                # allowed types.
+                result.append(r)
+
+        return result
+
+    # CONSIDER: figure out why we can not use virtual-target.traverse here.
+    #
+    def collect_targets(self, targets):
+        
+        s = [t.creating_subvariant() for t in targets]
+        s = unique(s)
+        
+        result = set(targets)
+        for i in s:
+            i.all_referenced_targets(result)
+           
+        result2 = []
+        for r in result:
+            if isinstance(r, property.Property):
+                
+                if r.feature().name() != 'use':
+                    result2.append(r.value())
+            else:
+                result2.append(r)
+        result2 = unique(result2)
+        return result2
+
+    # Returns true iff 'type' is subtype of some element of 'types-to-include'.
+    #
+    def include_type(self, type, types_to_include):
+        return any(b2.build.type.is_subtype(type, ti) for ti in types_to_include)
+
+# Creates a copy of target 'source'. The 'properties' object should have a
+# <location> property which specifies where the target must be placed.
+#
+def copy_file(project, name, source, ps):
+
+    if not name:
+        name = source.name()
+
+    relative = ""
+
+    new_a = virtual_target.NonScanningAction([source], "common.copy", ps)
+    source_root = ps.get('install-source-root')
+    if source_root:
+        source_root = source_root[0]
+        # Get the real path of the target. We probably need to strip relative
+        # path from the target name at construction.
+        path = os.path.join(source.path(), os.path.dirname(name))
+        # Make the path absolute. Otherwise, it would be hard to compute the
+        # relative path. The 'source-root' is already absolute, see the
+        # 'adjust-properties' method above.
+        path = os.path.abspath(path)
+
+        relative = os.path.relpath(path, source_root)
+
+    name = os.path.join(relative, os.path.basename(name))
+    return virtual_target.FileTarget(name, source.type(), project, new_a, exact=True)
+
+def symlink(name, project, source, ps):
+    a = virtual_target.Action([source], "symlink.ln", ps)
+    return virtual_target.FileTarget(name, source.type(), project, a, exact=True)
+
+def relink_file(project, source, ps):
+    action = source.action()
+    cloned_action = virtual_target.clone_action(action, project, "", ps)
+    targets = cloned_action.targets()
+    # We relink only on Unix, where exe or shared lib is always a single file.
+    assert len(targets) == 1
+    return targets[0]
+
+
+# Declare installed version of the EXE type. Generator for this type will cause
+# relinking to the new location.
+b2.build.type.register('INSTALLED_EXE', [], 'EXE')
+
+class InstalledExeGenerator(generators.Generator):
+
+    def __init__(self):
+        generators.Generator.__init__(self, "install-exe", False, ['EXE'], ['INSTALLED_EXE'])
+
+    def run(self, project, name, ps, source):
+
+        need_relink = False;
+
+        if ps.get('os') in ['NT', 'CYGWIN'] or ps.get('target-os') in ['windows', 'cygwin']:
+            # Never relink
+            pass
+        else:
+            # See if the dll-path properties are not changed during
+            # install. If so, copy, don't relink.
+            need_relink = ps.get('dll-path') != source[0].action().properties().get('dll-path')
+
+        if need_relink:
+            return [relink_file(project, source, ps)]
+        else:
+            return [copy_file(project, None, source[0], ps)]
+
+generators.register(InstalledExeGenerator())
+
+
+# Installing a shared link on Unix might cause a creation of versioned symbolic
+# links.
+b2.build.type.register('INSTALLED_SHARED_LIB', [], 'SHARED_LIB')
+
+class InstalledSharedLibGenerator(generators.Generator):
+
+    def __init__(self):
+        generators.Generator.__init__(self, 'install-shared-lib', False, ['SHARED_LIB'], ['INSTALLED_SHARED_LIB'])
+
+    def run(self, project, name, ps, source):
+
+        source = source[0]
+        if ps.get('os') in ['NT', 'CYGWIN'] or ps.get('target-os') in ['windows', 'cygwin']:
+            copied = copy_file(project, None, source, ps)
+            return [get_manager().virtual_targets().register(copied)]
+        else:
+            a = source.action()
+            if not a:
+                # Non-derived file, just copy.
+                copied = copy_file(project, source, ps)
+            else:
+
+                need_relink = ps.get('dll-path') != source.action().properties().get('dll-path')
+                
+                if need_relink:
+                    # Rpath changed, need to relink.
+                    copied = relink_file(project, source, ps)
+                else:
+                    copied = copy_file(project, None, source, ps)
+
+            result = [get_manager().virtual_targets().register(copied)]
+            # If the name is in the form NNN.XXX.YYY.ZZZ, where all 'X', 'Y' and
+            # 'Z' are numbers, we need to create NNN.XXX and NNN.XXX.YYY
+            # symbolic links.
+            m = re.match("(.*)\\.([0123456789]+)\\.([0123456789]+)\\.([0123456789]+)$",
+                         copied.name());
+            if m:
+                # Symlink without version at all is used to make
+                # -lsome_library work.
+                result.append(symlink(m.group(1), project, copied, ps))
+
+                # Symlinks of some libfoo.N and libfoo.N.M are used so that
+                # library can found at runtime, if libfoo.N.M.X has soname of
+                # libfoo.N. That happens when the library makes some binary
+                # compatibility guarantees. If not, it is possible to skip those
+                # symlinks.
+                if ps.get('install-no-version-symlinks') != ['on']:
+                
+                    result.append(symlink(m.group(1) + '.' + m.group(2), project, copied, ps))
+                    result.append(symlink(m.group(1) + '.' + m.group(2) + '.' + m.group(3),
+                                          project, copied, ps))
+
+            return result
+            
+generators.register(InstalledSharedLibGenerator())
+
+
+# Main target rule for 'install'.
+#
+@bjam_signature((["name"], ["sources", "*"], ["requirements", "*"],
+                 ["default_build", "*"], ["usage_requirements", "*"]))
+def install(name, sources, requirements=[], default_build=[], usage_requirements=[]):
+
+    requirements = requirements[:]
+    # Unless the user has explicitly asked us to hardcode dll paths, add
+    # <hardcode-dll-paths>false in requirements, to override default value.
+    if not '<hardcode-dll-paths>true' in requirements:
+        requirements.append('<hardcode-dll-paths>false')
+
+    if any(r.startswith('<tag>') for r in requirements):
+        get_manager().errors()("The <tag> property is not allowed for the 'install' rule")
+
+    from b2.manager import get_manager
+    t = get_manager().targets()
+    
+    project = get_manager().projects().current()
+        
+    return t.main_target_alternative(
+        InstallTargetClass(name, project,
+                           t.main_target_sources(sources, name),
+                           t.main_target_requirements(requirements, project),
+                           t.main_target_default_build(default_build, project),
+                           t.main_target_usage_requirements(usage_requirements, project)))
+
+get_manager().projects().add_rule("install", install)
+get_manager().projects().add_rule("stage", install)
+
diff --git a/jam-files/boost-build/tools/stlport.jam b/jam-files/boost-build/tools/stlport.jam
new file mode 100644
index 00000000..62eebda5
--- /dev/null
+++ b/jam-files/boost-build/tools/stlport.jam
@@ -0,0 +1,303 @@
+# Copyright Gennadiy Rozental
+# Copyright 2006 Rene Rivera 
+# Copyright 2003, 2004, 2006 Vladimir Prus 
+# Distributed under the Boost Software License, Version 1.0. 
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) 
+
+# The STLPort is usable by means of 'stdlib' feature. When
+# stdlib=stlport is specified, default version of STLPort will be used,
+# while stdlib=stlport-4.5 will use specific version.
+# The subfeature value 'hostios' means to use host compiler's iostreams.
+#
+# The specific version of stlport is selected by features:
+# The <runtime-link> feature selects between static and shared library
+# The <runtime-debugging>on selects STLPort with debug symbols
+# and stl debugging.
+# There's no way to use STLPort with debug symbols but without
+# stl debugging.
+
+# TODO: must implement selection of different STLPort installations based
+# on used toolset.
+# Also, finish various flags:
+#
+# This is copied from V1 toolset, "+" means "implemented"
+#+flags $(CURR_TOOLSET) DEFINES <stlport-iostream>off : _STLP_NO_OWN_IOSTREAMS=1 _STLP_HAS_NO_NEW_IOSTREAMS=1 ;
+#+flags $(CURR_TOOLSET) DEFINES <stlport-extensions>off : _STLP_NO_EXTENSIONS=1 ;
+# flags $(CURR_TOOLSET) DEFINES <stlport-anachronisms>off : _STLP_NO_ANACHRONISMS=1 ;
+# flags $(CURR_TOOLSET) DEFINES <stlport-cstd-namespace>global : _STLP_VENDOR_GLOBAL_CSTD=1 ;
+# flags $(CURR_TOOLSET) DEFINES <exception-handling>off : _STLP_NO_EXCEPTIONS=1 ;
+# flags $(CURR_TOOLSET) DEFINES <stlport-debug-alloc>on : _STLP_DEBUG_ALLOC=1 ;
+#+flags $(CURR_TOOLSET) DEFINES <runtime-build>debug : _STLP_DEBUG=1 _STLP_DEBUG_UNINITIALIZED=1 ;
+#+flags $(CURR_TOOLSET) DEFINES <runtime-link>dynamic : _STLP_USE_DYNAMIC_LIB=1 ;
+
+
+import feature : feature subfeature ;
+import project ;
+import "class" : new ;
+import targets ;
+import property-set ;
+import common ;
+import type ;
+
+# Make this module into a project.
+project.initialize $(__name__) ;
+project stlport ;
+
+# The problem: how to request to use host compiler's iostreams?
+#
+# Solution 1: Global 'stlport-iostream' feature.
+#    That's ugly. Subfeature make more sense for stlport-specific thing.
+# Solution 2: Use subfeature with two values, one of which ("use STLPort iostream")
+#     is default.
+#    The problem is that such subfeature will appear in target paths, and that's ugly
+# Solution 3: Use optional subfeature with only one value.
+
+feature.extend stdlib : stlport ;
+feature.compose <stdlib>stlport : <library>/stlport//stlport ;
+
+# STLport iostreams or native iostreams
+subfeature stdlib stlport : iostream : hostios : optional propagated  ;
+
+# STLport extensions
+subfeature stdlib stlport : extensions : noext : optional propagated ;
+
+# STLport anachronisms -- NOT YET SUPPORTED
+# subfeature stdlib stlport : anachronisms : on off ;
+
+# STLport debug allocation -- NOT YET SUPPORTED
+#subfeature stdlib stlport : debug-alloc : off on ;
+
+# Declare a special target class to handle the creation of search-lib-target
+# instances for STLport. We need a special class, because otherwise we'll have
+# - declare prebuilt targets for all possible toolsets. And by the time 'init'
+#   is called we don't even know the list of toolsets that are registered
+# - when host iostreams are used, we really should produce nothing. It would
+#   be hard/impossible to achieve this using prebuilt targets.
+
+class stlport-target-class : basic-target
+{
+    import feature project type errors generators ;
+    import set : difference ;
+
+    rule __init__ ( project : headers ? : libraries * :  version ? )
+    {
+        basic-target.__init__ stlport : $(project) ;
+        self.headers = $(headers) ;
+        self.libraries = $(libraries) ;
+        self.version = $(version) ;
+        self.version.5 = [ MATCH "^(5[.][0123456789]+).*" : $(version) ] ;
+        
+        local requirements ;
+        requirements += <stdlib-stlport:version>$(self.version) ;
+        self.requirements = [ property-set.create $(requirements) ] ;
+    }
+
+    rule generate ( property-set )
+    {
+        # Since this target is built with <stdlib>stlport, it will also
+        # have <library>/stlport//stlport in requirements, which will
+        # cause a loop in main target references. Remove that property
+        # manually.
+
+        property-set = [ property-set.create
+            [ difference
+                [ $(property-set).raw ] :
+                <library>/stlport//stlport
+                <stdlib>stlport
+                ]
+            ] ;
+        return [ basic-target.generate $(property-set) ] ;
+    }
+
+    rule construct ( name : source-targets * : property-set )
+    {
+        # Deduce the name of stlport library, based on toolset and
+        # debug setting.
+        local raw = [ $(property-set).raw ] ;
+        local hostios = [ feature.get-values <stdlib-stlport:iostream> : $(raw) ] ;
+        local toolset = [ feature.get-values <toolset> : $(raw) ] ;
+
+        if $(self.version.5)
+        {
+            # Version 5.x
+            
+            # STLport host IO streams no longer supported. So we always 
+            # need libraries.
+            
+            # name: stlport(stl)?[dg]?(_static)?.M.R
+            local name = stlport ;
+            if [ feature.get-values <runtime-debugging> : $(raw) ] = "on"
+            {
+                name += stl ;
+                switch $(toolset)
+                {
+                    case gcc* : name += g ;
+                    case darwin* : name += g ;
+                    case * : name += d ;
+                }
+            }
+
+            if [ feature.get-values <runtime-link> : $(raw) ] = "static"
+            {
+                name += _static ;
+            }
+
+            # Starting with version 5.2.0, the STLport static libraries no longer
+            #  include a version number in their name
+            local version.pre.5.2 = [ MATCH "^(5[.][01]+).*" : $(version) ] ;
+            if $(version.pre.5.2) || [ feature.get-values <runtime-link> : $(raw) ] != "static" 
+            {
+                name += .$(self.version.5) ;
+            }
+			
+            name = $(name:J=) ;
+            
+            if [ feature.get-values <install-dependencies> : $(raw) ] = "on"
+            {
+                #~ Allow explicitly asking to install the STLport lib by
+                #~ refering to it directly: /stlport//stlport/<install-dependencies>on
+                #~ This allows for install packaging of all libs one might need for
+                #~ a standalone distribution.
+                import path : make : path-make ;
+                local runtime-link
+                    = [ feature.get-values <runtime-link> : $(raw) ] ;
+                local lib-file.props
+                    = [ property-set.create $(raw) <link>$(runtime-link) ] ;
+                local lib-file.prefix
+                    = [ type.generated-target-prefix $(runtime-link:U)_LIB : $(lib-file.props) ] ;
+                local lib-file.suffix
+                    = [ type.generated-target-suffix $(runtime-link:U)_LIB : $(lib-file.props) ] ;
+                lib-file.prefix
+                    ?= "" "lib" ;
+                lib-file.suffix
+                    ?= "" ;
+                local lib-file
+                    = [ GLOB $(self.libraries) [ modules.peek : PATH ] :
+                        $(lib-file.prefix)$(name).$(lib-file.suffix) ] ;
+                lib-file
+                    = [ new file-reference [ path-make $(lib-file[1]) ] : $(self.project) ] ;
+                lib-file
+                    = [ $(lib-file).generate "" ] ;
+                local lib-file.requirements
+                    = [ targets.main-target-requirements
+                        [ $(lib-file.props).raw ] <file>$(lib-file[-1])
+                        : $(self.project) ] ;
+                return [ generators.construct $(self.project) $(name) : LIB : $(lib-file.requirements) ] ;
+            }
+            else
+            {
+                #~ Otherwise, it's just a regular usage of the library.
+                return [ generators.construct
+                    $(self.project) $(name) : SEARCHED_LIB : $(property-set) ] ;
+            }
+        }
+        else if ! $(hostios) && $(toolset) != msvc
+        {
+            # We don't need libraries if host istreams are used. For
+            # msvc, automatic library selection will be used.
+            
+            # name: stlport_<toolset>(_stldebug)?
+            local name = stlport ;
+            name = $(name)_$(toolset) ;
+            if [ feature.get-values <runtime-debugging> : $(raw) ] = "on"
+            {
+                name = $(name)_stldebug ;
+            }
+
+            return [ generators.construct
+                $(self.project) $(name) : SEARCHED_LIB : $(property-set) ] ;
+        }
+        else
+        {
+            return [ property-set.empty ] ;
+        }
+    }
+
+    rule compute-usage-requirements ( subvariant )
+    {
+        local usage-requirements =
+            <include>$(self.headers)
+            <dll-path>$(self.libraries)
+            <library-path>$(self.libraries)
+            ;
+
+        local rproperties = [ $(subvariant).build-properties ] ;
+        # CONSIDER: should this "if" sequence be replaced with
+        # some use of 'property-map' class?
+        if [ $(rproperties).get <runtime-debugging> ] = "on"
+        {
+            usage-requirements +=
+                <define>_STLP_DEBUG=1
+                <define>_STLP_DEBUG_UNINITIALIZED=1 ;
+        }
+        if [ $(rproperties).get <runtime-link> ] = "shared"
+        {
+            usage-requirements +=
+                <define>_STLP_USE_DYNAMIC_LIB=1 ;
+        }
+        if [ $(rproperties).get <stdlib-stlport:extensions> ] = noext
+        {
+            usage-requirements +=
+                <define>_STLP_NO_EXTENSIONS=1 ;
+        }
+        if [ $(rproperties).get <stdlib-stlport:iostream> ] = hostios
+        {
+            usage-requirements +=
+                <define>_STLP_NO_OWN_IOSTREAMS=1
+                <define>_STLP_HAS_NO_NEW_IOSTREAMS=1 ;
+        }
+        if $(self.version.5)
+        {
+            # Version 5.x
+            if [ $(rproperties).get <threading> ] = "single"
+            {
+                # Since STLport5 doesn't normally support single-thread
+                # we force STLport5 into the multi-thread mode. Hence
+                # getting what other libs provide of single-thread code
+                # linking against a multi-thread lib.
+                usage-requirements +=
+                    <define>_STLP_THREADS=1 ;
+            }
+        }
+        
+        return [ property-set.create $(usage-requirements) ] ;
+    }
+}
+
+rule stlport-target ( headers ? : libraries * : version ? )
+{
+    local project = [ project.current ] ;
+
+    targets.main-target-alternative
+      [ new stlport-target-class  $(project) : $(headers) : $(libraries)
+        : $(version)
+      ] ;
+}
+
+local .version-subfeature-defined ;
+
+# Initialize stlport support.
+rule init (
+    version ? :
+    headers   :     # Location of header files
+    libraries *     # Location of libraries, lib and bin subdirs of STLport.
+    )
+{
+    # FIXME: need to use common.check-init-parameters here.
+    # At the moment, that rule always tries to define subfeature
+    # of the 'toolset' feature, while we need to define subfeature
+    # of <stdlib>stlport, so tweaks to check-init-parameters are needed.
+    if $(version)
+    {
+        if ! $(.version-subfeature-defined)
+        {
+            feature.subfeature stdlib stlport : version : : propagated ;
+            .version-subfeature-defined = true ;
+        }
+        feature.extend-subfeature stdlib stlport : version : $(version) ;
+    }
+
+    # Declare the main target for this STLPort version.
+    stlport-target $(headers) : $(libraries) : $(version) ;
+}
+
diff --git a/jam-files/boost-build/tools/sun.jam b/jam-files/boost-build/tools/sun.jam
new file mode 100644
index 00000000..0ca927d3
--- /dev/null
+++ b/jam-files/boost-build/tools/sun.jam
@@ -0,0 +1,142 @@
+#  Copyright (C) Christopher Currie 2003. Permission to copy, use,
+#  modify, sell and distribute this software is granted provided this
+#  copyright notice appears in all copies. This software is provided
+#  "as is" without express or implied warranty, and with no claim as
+#  to its suitability for any purpose.
+
+import property ;
+import generators ;
+import os ;
+import toolset : flags ;
+import feature ;
+import type ;
+import common ;
+
+feature.extend toolset : sun ;
+toolset.inherit  sun : unix ;
+generators.override sun.prebuilt : builtin.lib-generator ;
+generators.override sun.prebuilt : builtin.prebuilt ;
+generators.override sun.searched-lib-generator : searched-lib-generator ;
+
+feature.extend stdlib : sun-stlport ;
+feature.compose <stdlib>sun-stlport
+    : <cxxflags>-library=stlport4 <linkflags>-library=stlport4
+    ;
+
+rule init ( version ? : command * : options * ) 
+{
+    local condition = [ 
+      common.check-init-parameters sun : version $(version) ] ;
+    
+    command = [ common.get-invocation-command sun : CC 
+        : $(command) : "/opt/SUNWspro/bin" ] ;
+
+    # Even if the real compiler is not found, put CC to
+    # command line so that user see command line that would have being executed.
+    command ?= CC ;
+
+    common.handle-options sun : $(condition) : $(command) : $(options) ;
+    
+    command_c = $(command[1--2]) $(command[-1]:B=cc) ;
+
+    toolset.flags sun CONFIG_C_COMMAND $(condition) : $(command_c) ;
+}
+
+# Declare generators
+generators.register-c-compiler sun.compile.c : C : OBJ : <toolset>sun ;
+generators.register-c-compiler sun.compile.c++ : CPP : OBJ : <toolset>sun ;
+
+# Declare flags and actions for compilation
+flags sun.compile OPTIONS <debug-symbols>on : -g ;
+flags sun.compile OPTIONS <profiling>on : -xprofile=tcov ;
+flags sun.compile OPTIONS <optimization>speed : -xO4  ;
+flags sun.compile OPTIONS <optimization>space : -xO2 -xspace ;
+flags sun.compile OPTIONS <threading>multi : -mt ;
+flags sun.compile OPTIONS <warnings>off : -erroff ;
+flags sun.compile OPTIONS <warnings>on : -erroff=%none ;
+flags sun.compile OPTIONS <warnings>all  : -erroff=%none ;
+flags sun.compile OPTIONS <warnings-as-errors>on : -errwarn ;
+
+flags sun.compile.c++ OPTIONS <inlining>off : +d ;
+
+# The -m32 and -m64 options are supported starting
+# with Sun Studio 12.  On earlier compilers, the
+# 'address-model' feature is not supported and should not
+# be used. Instead, use -xarch=generic64 command line
+# option.
+# See http://svn.boost.org/trac/boost/ticket/1186
+# for details.
+flags sun OPTIONS <address-model>32 : -m32 ;
+flags sun OPTIONS <address-model>64 : -m64 ;
+# On sparc, there's a difference between -Kpic
+# and -KPIC. The first is slightly more efficient,
+# but has the limits on the size of GOT table.
+# For minimal fuss on user side, we use -KPIC here.
+# See http://svn.boost.org/trac/boost/ticket/1186#comment:6
+# for detailed explanation.
+flags sun OPTIONS <link>shared : -KPIC ;
+
+flags sun.compile OPTIONS <cflags> ;
+flags sun.compile.c++ OPTIONS <cxxflags> ;
+flags sun.compile DEFINES <define> ;
+flags sun.compile INCLUDES <include> ;
+
+actions compile.c
+{
+    "$(CONFIG_C_COMMAND)" $(OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -c -o "$(<)" "$(>)"
+}
+
+actions compile.c++
+{
+    "$(CONFIG_COMMAND)" $(OPTIONS) -D$(DEFINES) -I"$(INCLUDES)" -c -o "$(<)" "$(>)"
+}
+
+# Declare flags and actions for linking
+flags sun.link OPTIONS <debug-symbols>on : -g ;
+# Strip the binary when no debugging is needed
+flags sun.link OPTIONS <debug-symbols>off : -s ;
+flags sun.link OPTIONS <profiling>on : -xprofile=tcov ;
+flags sun.link OPTIONS <threading>multi : -mt ;
+flags sun.link OPTIONS <linkflags> ;
+flags sun.link LINKPATH <library-path> ;
+flags sun.link FINDLIBS-ST <find-static-library> ;
+flags sun.link FINDLIBS-SA <find-shared-library> ;
+flags sun.link LIBRARIES <library-file> ;
+flags sun.link LINK-RUNTIME <runtime-link>static : static ;
+flags sun.link LINK-RUNTIME <runtime-link>shared : dynamic ;
+flags sun.link RPATH <dll-path> ;
+# On gcc, there are separate options for dll path at runtime and
+# link time. On Solaris, there's only one: -R, so we have to use
+# it, even though it's bad idea.
+flags sun.link RPATH <xdll-path> ;
+
+# The POSIX real-time library is always needed (nanosleep, clock_gettime etc.)
+flags sun.link FINDLIBS-SA : rt ;
+
+rule link ( targets * : sources * : properties * )
+{
+    SPACE on $(targets) = " " ;
+}
+
+actions link bind LIBRARIES
+{
+    "$(CONFIG_COMMAND)" $(OPTIONS) -L"$(LINKPATH)" -R"$(RPATH)" -o "$(<)" "$(>)" "$(LIBRARIES)" -Bdynamic -l$(FINDLIBS-SA) -Bstatic -l$(FINDLIBS-ST) -B$(LINK-RUNTIME)
+}
+
+# Slight mods for dlls
+rule link.dll ( targets * : sources * : properties * )
+{
+    SPACE on $(targets) = " " ;
+}
+
+actions link.dll bind LIBRARIES
+{
+    "$(CONFIG_COMMAND)" $(OPTIONS) -L"$(LINKPATH)" -R"$(RPATH)" -o "$(<)" -h$(<[1]:D=) -G "$(>)" "$(LIBRARIES)" -Bdynamic -l$(FINDLIBS-SA) -Bstatic -l$(FINDLIBS-ST) -B$(LINK-RUNTIME)
+}
+
+# Declare action for creating static libraries
+actions piecemeal archive
+{
+    "$(CONFIG_COMMAND)" -xar -o "$(<)" "$(>)"
+}
+
diff --git a/jam-files/boost-build/tools/symlink.jam b/jam-files/boost-build/tools/symlink.jam
new file mode 100644
index 00000000..b33e8260
--- /dev/null
+++ b/jam-files/boost-build/tools/symlink.jam
@@ -0,0 +1,140 @@
+# Copyright 2003 Dave Abrahams 
+# Copyright 2002, 2003 Rene Rivera 
+# Copyright 2002, 2003, 2004, 2005 Vladimir Prus 
+# Distributed under the Boost Software License, Version 1.0. 
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) 
+
+# Defines the "symlink" special target. 'symlink' targets make symbolic links
+# to the sources.
+
+import targets modules path class os feature project property-set ;
+
+.count = 0 ;
+
+feature.feature symlink-location : project-relative build-relative : incidental ;
+
+# The class representing "symlink" targets.
+#
+class symlink-targets : basic-target
+{
+    import numbers modules class property project path ;
+    
+    rule __init__ (
+      project
+        : targets *
+        : sources *
+    )
+    {    
+        # Generate a fake name for now. Need unnamed targets eventually.
+        local c = [ modules.peek symlink : .count ] ;
+        modules.poke symlink : .count : [ numbers.increment $(c) ] ;
+        local fake-name = symlink#$(c) ;
+    
+          basic-target.__init__ $(fake-name) : $(project) : $(sources) ;
+    
+        # Remember the targets to map the sources onto. Pad or truncate
+        # to fit the sources given.
+        self.targets = ;
+        for local source in $(sources)
+        {
+            if $(targets)
+            {
+                self.targets += $(targets[1]) ;
+                targets = $(targets[2-]) ;
+            }
+            else
+            {
+                self.targets += $(source) ;
+            }
+        }
+    
+        # The virtual targets corresponding to the given targets.
+        self.virtual-targets = ;
+    }    
+    
+    rule construct ( name : source-targets * : property-set )
+    {
+        local i = 1 ;
+        for local t in $(source-targets)
+        {
+            local s = $(self.targets[$(i)]) ;
+            local a = [ class.new action  $(t) : symlink.ln : $(property-set) ] ;
+            local vt = [ class.new file-target $(s:D=) 
+              : [ $(t).type ] : $(self.project) : $(a) ] ;
+            
+            # Place the symlink in the directory relative to the project
+            # location, instead of placing it in the build directory.
+            if [ property.select <symlink-location> : [ $(property-set).raw ] ] = <symlink-location>project-relative
+            {
+                $(vt).set-path [ path.root $(s:D) [ $(self.project).get location ] ] ;
+            }
+            
+            self.virtual-targets += $(vt) ;
+            i = [ numbers.increment $(i) ] ;
+        }
+        return [ property-set.empty ] $(self.virtual-targets) ;
+    }
+}
+
+# Creates a symbolic link from a set of targets to a set of sources.
+# The targets and sources map one to one. The symlinks generated are
+# limited to be the ones given as the sources. That is, the targets
+# are either padded or trimmed to equate to the sources. The padding
+# is done with the name of the corresponding source. For example::
+#
+#     symlink : one two ;
+#
+# Is equal to::
+#
+#     symlink one two : one two ;
+#
+# Names for symlink are relative to the project location. They cannot
+# include ".." path components.
+rule symlink (
+    targets *
+    : sources *
+    )
+{
+    local project = [ project.current ] ;
+    
+    return [ targets.main-target-alternative
+        [ class.new symlink-targets $(project) : $(targets) : 
+          # Note: inline targets are not supported for symlink, intentionally,
+          # since it's used to linking existing non-local targets.
+          $(sources) ] ] ;
+}
+
+rule ln
+{
+    local os ;
+    if [ modules.peek : UNIX ] { os = UNIX ; }
+    else { os ?= [ os.name ] ; }
+    # Remember the path to make the link relative to where the symlink is located.
+    local path-to-source = [ path.relative-to
+        [ path.make [ on $(<) return $(LOCATE) ] ]
+        [ path.make [ on $(>) return $(LOCATE) ] ] ] ;
+    if $(path-to-source) = .
+    {
+        PATH_TO_SOURCE on $(<) = "" ;
+    }
+    else
+    {
+        PATH_TO_SOURCE on $(<) = [ path.native $(path-to-source) ] ;
+    }
+    ln-$(os) $(<) : $(>) ;
+}
+
+actions ln-UNIX
+{
+    ln -f -s '$(>:D=:R=$(PATH_TO_SOURCE))' '$(<)'
+}
+
+# there is a way to do this; we fall back to a copy for now
+actions ln-NT
+{
+    echo "NT symlinks not supported yet, making copy"
+    del /f /q "$(<)" 2>nul >nul
+    copy "$(>)" "$(<)" $(NULL_OUT)
+}
+
+IMPORT $(__name__) : symlink : : symlink ;
diff --git a/jam-files/boost-build/tools/symlink.py b/jam-files/boost-build/tools/symlink.py
new file mode 100644
index 00000000..6345ded6
--- /dev/null
+++ b/jam-files/boost-build/tools/symlink.py
@@ -0,0 +1,112 @@
+# Status: ported.
+# Base revision: 64488.
+
+# Copyright 2003 Dave Abrahams 
+# Copyright 2002, 2003 Rene Rivera 
+# Copyright 2002, 2003, 2004, 2005 Vladimir Prus 
+# Distributed under the Boost Software License, Version 1.0. 
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) 
+
+# Defines the "symlink" special target. 'symlink' targets make symbolic links
+# to the sources.
+
+import b2.build.feature as feature
+import b2.build.targets as targets
+import b2.build.property_set as property_set
+import b2.build.virtual_target as virtual_target
+import b2.build.targets
+
+from b2.manager import get_manager
+
+import bjam
+
+import os
+
+
+feature.feature("symlink-location", ["project-relative", "build-relative"], ["incidental"])
+
+class SymlinkTarget(targets.BasicTarget):
+
+    _count = 0
+
+    def __init__(self, project, targets, sources):
+         
+        # Generate a fake name for now. Need unnamed targets eventually.
+        fake_name = "symlink#%s" % SymlinkTarget._count
+        SymlinkTarget._count = SymlinkTarget._count + 1
+
+        b2.build.targets.BasicTarget.__init__(self, fake_name, project, sources)
+    
+        # Remember the targets to map the sources onto. Pad or truncate
+        # to fit the sources given.
+        assert len(targets) <= len(sources)
+        self.targets = targets[:] + sources[len(targets):]
+            
+        # The virtual targets corresponding to the given targets.
+        self.virtual_targets = []
+
+    def construct(self, name, source_targets, ps):
+        i = 0
+        for t in source_targets:
+            s = self.targets[i]
+            a = virtual_target.Action(self.manager(), [t], "symlink.ln", ps)
+            vt = virtual_target.FileTarget(os.path.basename(s), t.type(), self.project(), a)
+                        
+            # Place the symlink in the directory relative to the project
+            # location, instead of placing it in the build directory.
+            if not ps.get('symlink-location') == "project-relative":
+                vt.set_path(os.path.join(self.project().get('location'), os.path.dirname(s)))
+
+            vt = get_manager().virtual_targets().register(vt)
+            self.virtual_targets.append(vt)
+            i = i + 1
+
+        return (property_set.empty(), self.virtual_targets)
+
+# Creates a symbolic link from a set of targets to a set of sources.
+# The targets and sources map one to one. The symlinks generated are
+# limited to be the ones given as the sources. That is, the targets
+# are either padded or trimmed to equate to the sources. The padding
+# is done with the name of the corresponding source. For example::
+#
+#     symlink : one two ;
+#
+# Is equal to::
+#
+#     symlink one two : one two ;
+#
+# Names for symlink are relative to the project location. They cannot
+# include ".." path components.
+def symlink(targets, sources):
+
+    from b2.manager import get_manager
+    t = get_manager().targets()   
+    p = get_manager().projects().current()
+
+    return t.main_target_alternative(
+        SymlinkTarget(p, targets, 
+                      # Note: inline targets are not supported for symlink, intentionally,
+                      # since it's used to linking existing non-local targets.
+                      sources))
+
+
+def setup_ln(targets, sources, ps):
+
+    source_path = bjam.call("get-target-variable", sources[0], "LOCATE")[0]
+    target_path = bjam.call("get-target-variable", targets[0], "LOCATE")[0]
+    rel = os.path.relpath(source_path, target_path)
+    if rel == ".":
+        bjam.call("set-target-variable", targets, "PATH_TO_SOURCE", "")
+    else:
+        bjam.call("set-target-variable", targets, "PATH_TO_SOURCE", rel)
+
+if os.name == 'nt':
+    ln_action = """echo "NT symlinks not supported yet, making copy"
+del /f /q "$(<)" 2>nul >nul
+copy "$(>)" "$(<)" $(NULL_OUT)"""
+else:
+    ln_action = "ln -f -s '$(>:D=:R=$(PATH_TO_SOURCE))' '$(<)'"
+
+get_manager().engine().register_action("symlink.ln", ln_action, function=setup_ln)
+
+get_manager().projects().add_rule("symlink", symlink)
diff --git a/jam-files/boost-build/tools/testing-aux.jam b/jam-files/boost-build/tools/testing-aux.jam
new file mode 100644
index 00000000..525dafd0
--- /dev/null
+++ b/jam-files/boost-build/tools/testing-aux.jam
@@ -0,0 +1,210 @@
+# This module is imported by testing.py. The definitions here are
+# too tricky to do in Python
+
+# Causes the 'target' to exist after bjam invocation if and only if all the
+# dependencies were successfully built.
+#
+rule expect-success ( target : dependency + : requirements * )
+{
+    **passed** $(target) : $(sources) ;
+}
+IMPORT testing : expect-success : : testing.expect-success ;
+
+# Causes the 'target' to exist after bjam invocation if and only if all some of
+# the dependencies were not successfully built.
+#
+rule expect-failure ( target : dependency + : properties * )
+{
+    local grist = [ MATCH ^<(.*)> : $(dependency:G) ] ;
+    local marker = $(dependency:G=$(grist)*fail) ;
+    (failed-as-expected) $(marker) ;
+    FAIL_EXPECTED $(dependency) ;
+    LOCATE on $(marker) = [ on $(dependency) return $(LOCATE) ] ;
+    RMOLD $(marker) ;
+    DEPENDS $(marker) : $(dependency) ;
+    DEPENDS $(target) : $(marker) ;
+    **passed** $(target) : $(marker) ;
+}
+IMPORT testing : expect-failure : : testing.expect-failure ;
+
+# The rule/action combination used to report successful passing of a test.
+#
+rule **passed**
+{
+    # Force deletion of the target, in case any dependencies failed to build.
+    RMOLD $(<) ;
+}
+
+
+# Used to create test files signifying passed tests.
+#
+actions **passed**
+{
+    echo passed > "$(<)"
+}
+
+
+# Used to create replacement object files that do not get created during tests
+# that are expected to fail.
+#
+actions (failed-as-expected)
+{
+    echo failed as expected > "$(<)"
+}
+
+# Runs executable 'sources' and stores stdout in file 'target'. Unless
+# --preserve-test-targets command line option has been specified, removes the
+# executable. The 'target-to-remove' parameter controls what should be removed:
+#   - if 'none', does not remove anything, ever
+#   - if empty, removes 'source'
+#   - if non-empty and not 'none', contains a list of sources to remove.
+#
+rule capture-output ( target : source : properties * : targets-to-remove * )
+{
+    output-file on $(target) = $(target:S=.output) ;
+    LOCATE on $(target:S=.output) = [ on $(target) return $(LOCATE) ] ;
+
+    # The INCLUDES kill a warning about independent target...
+    INCLUDES $(target) : $(target:S=.output) ;
+    # but it also puts .output into dependency graph, so we must tell jam it is
+    # OK if it cannot find the target or updating rule.
+    NOCARE $(target:S=.output) ;
+
+    # This has two-fold effect. First it adds input files to the dependendency
+    # graph, preventing a warning. Second, it causes input files to be bound
+    # before target is created. Therefore, they are bound using SEARCH setting
+    # on them and not LOCATE setting of $(target), as in other case (due to jam
+    # bug).
+    DEPENDS $(target) : [ on $(target) return $(INPUT_FILES) ] ;
+
+    if $(targets-to-remove) = none
+    {
+        targets-to-remove = ;
+    }
+    else if ! $(targets-to-remove)
+    {
+        targets-to-remove = $(source) ;
+    }
+
+    if [ on $(target) return $(REMOVE_TEST_TARGETS) ]
+    {
+        TEMPORARY $(targets-to-remove) ;
+        # Set a second action on target that will be executed after capture
+        # output action. The 'RmTemps' rule has the 'ignore' modifier so it is
+        # always considered succeeded. This is needed for 'run-fail' test. For
+        # that test the target will be marked with FAIL_EXPECTED, and without
+        # 'ignore' successful execution will be negated and be reported as
+        # failure. With 'ignore' we do not detect a case where removing files
+        # fails, but it is not likely to happen.
+        RmTemps $(target) : $(targets-to-remove) ;
+    }
+}
+
+
+if [ os.name ] = NT
+{
+    .STATUS        = %status% ;
+    .SET_STATUS    = "set status=%ERRORLEVEL%" ;
+    .RUN_OUTPUT_NL = "echo." ;
+    .STATUS_0      = "%status% EQU 0 (" ;
+    .STATUS_NOT_0  = "%status% NEQ 0 (" ;
+    .VERBOSE       = "%verbose% EQU 1 (" ;
+    .ENDIF         = ")" ;
+    .SHELL_SET     = "set " ;
+    .CATENATE      = type ;
+    .CP            = copy ;
+}
+else
+{
+    .STATUS        = "$status" ;
+    .SET_STATUS    = "status=$?" ;
+    .RUN_OUTPUT_NL = "echo" ;
+    .STATUS_0      = "test $status -eq 0 ; then" ;
+    .STATUS_NOT_0  = "test $status -ne 0 ; then" ;
+    .VERBOSE       = "test $verbose -eq 1 ; then" ;
+    .ENDIF         = "fi" ;
+    .SHELL_SET     = "" ;
+    .CATENATE      = cat ;
+    .CP            = cp ;
+}
+
+
+.VERBOSE_TEST = 0 ;
+if --verbose-test in [ modules.peek : ARGV ]
+{
+    .VERBOSE_TEST = 1 ;
+}
+
+
+.RM = [ common.rm-command ] ;
+
+
+actions capture-output bind INPUT_FILES output-file
+{
+    $(PATH_SETUP)
+    $(LAUNCHER) "$(>)" $(ARGS) "$(INPUT_FILES)" > "$(output-file)" 2>&1
+    $(.SET_STATUS)
+    $(.RUN_OUTPUT_NL) >> "$(output-file)"
+    echo EXIT STATUS: $(.STATUS) >> "$(output-file)"
+    if $(.STATUS_0)
+        $(.CP) "$(output-file)" "$(<)"
+    $(.ENDIF)
+    $(.SHELL_SET)verbose=$(.VERBOSE_TEST)
+    if $(.STATUS_NOT_0)
+        $(.SHELL_SET)verbose=1
+    $(.ENDIF)
+    if $(.VERBOSE)
+        echo ====== BEGIN OUTPUT ======
+        $(.CATENATE) "$(output-file)"
+        echo ====== END OUTPUT ======
+    $(.ENDIF)
+    exit $(.STATUS)
+}
+
+IMPORT testing : capture-output : : testing.capture-output ;
+
+
+actions quietly updated ignore piecemeal together RmTemps
+{
+    $(.RM) "$(>)"
+}
+
+
+.MAKE_FILE = [ common.file-creation-command ] ;
+
+actions unit-test
+{
+    $(PATH_SETUP)
+    $(LAUNCHER) $(>) $(ARGS) && $(.MAKE_FILE) $(<)
+}
+
+rule record-time ( target : source : start end user system )
+{
+    local src-string = [$(source:G=:J=",")"] " ;
+    USER_TIME on $(target) += $(src-string)$(user) ;
+    SYSTEM_TIME on $(target) += $(src-string)$(system) ;
+}
+
+# Calling this rule requests that Boost Build time how long it taks to build the
+# 'source' target and display the results both on the standard output and in the
+# 'target' file.
+#
+rule time ( target : source : properties *  )
+{
+    # Set up rule for recording timing information.
+    __TIMING_RULE__ on $(source) = testing.record-time $(target) ;
+
+    # Make sure that the source is rebuilt any time we need to retrieve that
+    # information.
+    REBUILDS $(target) : $(source) ;
+}
+
+
+actions time
+{
+    echo user: $(USER_TIME)
+    echo system: $(SYSTEM_TIME)
+
+    echo user: $(USER_TIME)" seconds" > "$(<)"
+    echo system: $(SYSTEM_TIME)" seconds" >> "$(<)"
+}
diff --git a/jam-files/boost-build/tools/testing.jam b/jam-files/boost-build/tools/testing.jam
new file mode 100644
index 00000000..c42075b7
--- /dev/null
+++ b/jam-files/boost-build/tools/testing.jam
@@ -0,0 +1,581 @@
+# Copyright 2005 Dave Abrahams
+# Copyright 2002, 2003, 2004, 2005, 2006 Vladimir Prus
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+# This module implements regression testing framework. It declares a number of
+# main target rules which perform some action and, if the results are OK,
+# creates an output file.
+#
+# The exact list of rules is:
+# 'compile'       -- creates .test file if compilation of sources was
+#                    successful.
+# 'compile-fail'  -- creates .test file if compilation of sources failed.
+# 'run'           -- creates .test file is running of executable produced from
+#                    sources was successful. Also leaves behind .output file
+#                    with the output from program run.
+# 'run-fail'      -- same as above, but .test file is created if running fails.
+#
+# In all cases, presence of .test file is an indication that the test passed.
+# For more convenient reporting, you might want to use C++ Boost regression
+# testing utilities (see http://www.boost.org/more/regression.html).
+#
+# For historical reason, a 'unit-test' rule is available which has the same
+# syntax as 'exe' and behaves just like 'run'.
+
+# Things to do:
+#  - Teach compiler_status handle Jamfile.v2.
+# Notes:
+#  - <no-warn> is not implemented, since it is Como-specific, and it is not
+#    clear how to implement it
+#  - std::locale-support is not implemented (it is used in one test).
+
+
+import alias ;
+import "class" ;
+import common ;
+import errors ;
+import feature ;
+import generators ;
+import os ;
+import path ;
+import project ;
+import property ;
+import property-set ;
+import regex ;
+import sequence ;
+import targets ;
+import toolset ;
+import type ;
+import virtual-target ;
+
+
+rule init ( )
+{
+}
+
+
+# Feature controling the command used to lanch test programs.
+feature.feature testing.launcher   : : free optional ;
+
+feature.feature test-info          : : free incidental ;
+feature.feature testing.arg        : : free incidental ;
+feature.feature testing.input-file : : free dependency ;
+
+feature.feature preserve-test-targets : on off : incidental propagated ;
+
+# Register target types.
+type.register TEST         : test          ;
+type.register COMPILE      :        : TEST ;
+type.register COMPILE_FAIL :        : TEST ;
+type.register RUN_OUTPUT   : run           ;
+type.register RUN          :        : TEST ;
+type.register RUN_FAIL     :        : TEST ;
+type.register LINK_FAIL    :        : TEST ;
+type.register LINK         :        : TEST ;
+type.register UNIT_TEST    : passed : TEST ;
+
+
+# Declare the rules which create main targets. While the 'type' module already
+# creates rules with the same names for us, we need extra convenience: default
+# name of main target, so write our own versions.
+
+# Helper rule. Create a test target, using basename of first source if no target
+# name is explicitly passed. Remembers the created target in a global variable.
+#
+rule make-test ( target-type : sources + : requirements * : target-name ? )
+{
+    target-name ?= $(sources[1]:D=:S=) ;
+
+    # Having periods (".") in the target name is problematic because the typed
+    # generator will strip the suffix and use the bare name for the file
+    # targets. Even though the location-prefix averts problems most times it
+    # does not prevent ambiguity issues when referring to the test targets. For
+    # example when using the XML log output. So we rename the target to remove
+    # the periods, and provide an alias for users.
+    local real-name = [ regex.replace $(target-name) "[.]" "~" ] ;
+
+    local project = [ project.current ] ;
+    # The <location-prefix> forces the build system for generate paths in the
+    # form '$build_dir/array1.test/gcc/debug'. This is necessary to allow
+    # post-processing tools to work.
+    local t = [ targets.create-typed-target [ type.type-from-rule-name
+        $(target-type) ] : $(project) : $(real-name) : $(sources) :
+        $(requirements) <location-prefix>$(real-name).test ] ;
+
+    # The alias to the real target, per period replacement above.
+    if $(real-name) != $(target-name)
+    {
+        alias $(target-name) : $(t) ;
+    }
+
+    # Remember the test (for --dump-tests). A good way would be to collect all
+    # given a project. This has some technical problems: e.g. we can not call
+    # this dump from a Jamfile since projects referred by 'build-project' are
+    # not available until the whole Jamfile has been loaded.
+    .all-tests += $(t) ;
+    return $(t) ;
+}
+
+
+# Note: passing more that one cpp file here is known to fail. Passing a cpp file
+# and a library target works.
+#
+rule compile ( sources + : requirements * : target-name ? )
+{
+    return [ make-test compile : $(sources) : $(requirements) : $(target-name) ]
+        ;
+}
+
+
+rule compile-fail ( sources + : requirements * : target-name ? )
+{
+    return [ make-test compile-fail : $(sources) : $(requirements) :
+        $(target-name) ] ;
+}
+
+
+rule link ( sources + : requirements * : target-name ? )
+{
+    return [ make-test link : $(sources) : $(requirements) : $(target-name) ] ;
+}
+
+
+rule link-fail ( sources + : requirements * : target-name ? )
+{
+    return [ make-test link-fail : $(sources) : $(requirements) : $(target-name)
+        ] ;
+}
+
+
+rule handle-input-files ( input-files * )
+{
+    if $(input-files[2])
+    {
+        # Check that sorting made when creating property-set instance will not
+        # change the ordering.
+        if [ sequence.insertion-sort $(input-files) ] != $(input-files)
+        {
+            errors.user-error "Names of input files must be sorted alphabetically"
+                : "due to internal limitations" ;
+        }
+    }
+    return <testing.input-file>$(input-files) ;
+}
+
+
+rule run ( sources + : args * : input-files * : requirements * : target-name ? :
+    default-build * )
+{
+    requirements += <testing.arg>$(args:J=" ") ;
+    requirements += [ handle-input-files $(input-files) ] ;
+    return [ make-test run : $(sources) : $(requirements) : $(target-name) ] ;
+}
+
+
+rule run-fail ( sources + : args * : input-files * : requirements * :
+    target-name ? : default-build * )
+{
+    requirements += <testing.arg>$(args:J=" ") ;
+    requirements += [ handle-input-files $(input-files) ] ;
+    return [ make-test run-fail : $(sources) : $(requirements) : $(target-name)
+        ] ;
+}
+
+
+# Use 'test-suite' as a synonym for 'alias', for backward compatibility.
+IMPORT : alias : : test-suite ;
+
+
+# For all main targets in 'project-module', which are typed targets with type
+# derived from 'TEST', produce some interesting information.
+#
+rule dump-tests
+{
+    for local t in $(.all-tests)
+    {
+        dump-test $(t) ;
+    }
+}
+
+
+# Given a project location in normalized form (slashes are forward), compute the
+# name of the Boost library.
+#
+local rule get-library-name ( path )
+{
+    # Path is in normalized form, so all slashes are forward.
+    local match1 = [ MATCH /(tools|libs)/(.*)/(test|example) : $(path) ] ;
+    local match2 = [ MATCH /(tools|libs)/(.*)$ : $(path) ] ;
+    local match3 = [ MATCH (/status$) : $(path) ] ;
+
+    if $(match1) { return $(match1[2]) ; }
+    else if $(match2) { return $(match2[2]) ; }
+    else if $(match3) { return "" ; }
+    else if --dump-tests in [ modules.peek : ARGV ]
+    {
+        # The 'run' rule and others might be used outside boost. In that case,
+        # just return the path, since the 'library name' makes no sense.
+        return $(path) ;
+    }
+}
+
+
+# Was an XML dump requested?
+.out-xml = [ MATCH --out-xml=(.*) : [ modules.peek : ARGV ] ] ;
+
+
+# Takes a target (instance of 'basic-target') and prints
+#   - its type
+#   - its name
+#   - comments specified via the <test-info> property
+#   - relative location of all source from the project root.
+#
+rule dump-test ( target )
+{
+    local type = [ $(target).type ] ;
+    local name = [ $(target).name ] ;
+    local project = [ $(target).project ] ;
+
+    local project-root = [ $(project).get project-root ] ;
+    local library = [ get-library-name [ path.root [ $(project).get location ]
+        [ path.pwd ] ] ] ;
+    if $(library)
+    {
+        name = $(library)/$(name) ;
+    }
+
+    local sources = [ $(target).sources ] ;
+    local source-files ;
+    for local s in $(sources)
+    {
+        if [ class.is-a $(s) : file-reference ]
+        {
+            local location = [ path.root [ path.root [ $(s).name ]
+                [ $(s).location ] ] [ path.pwd ] ] ;
+
+            source-files += [ path.relative-to [ path.root $(project-root)
+                [ path.pwd ] ] $(location) ] ;
+        }
+    }
+
+    local target-name = [ $(project).get location ] // [ $(target).name ] .test
+        ;
+    target-name = $(target-name:J=) ;
+
+    local r = [ $(target).requirements ] ;
+    # Extract values of the <test-info> feature.
+    local test-info = [ $(r).get <test-info> ] ;
+
+    # If the user requested XML output on the command-line, add the test info to
+    # that XML file rather than dumping them to stdout.
+    if $(.out-xml)
+    {
+        local nl = "
+" ;
+        .contents on $(.out-xml) +=
+            "$(nl)  <test type=\"$(type)\" name=\"$(name)\">"
+            "$(nl)    <target><![CDATA[$(target-name)]]></target>"
+            "$(nl)    <info><![CDATA[$(test-info)]]></info>"
+            "$(nl)    <source><![CDATA[$(source-files)]]></source>"
+            "$(nl)  </test>"
+            ;
+    }
+    else
+    {
+        # Format them into a single string of quoted strings.
+        test-info = \"$(test-info:J=\"\ \")\" ;
+
+        ECHO boost-test($(type)) \"$(name)\" [$(test-info)] ":"
+            \"$(source-files)\" ;
+    }
+}
+
+
+# Register generators. Depending on target type, either 'expect-success' or
+# 'expect-failure' rule will be used.
+generators.register-standard testing.expect-success : OBJ        : COMPILE      ;
+generators.register-standard testing.expect-failure : OBJ        : COMPILE_FAIL ;
+generators.register-standard testing.expect-success : RUN_OUTPUT : RUN          ;
+generators.register-standard testing.expect-failure : RUN_OUTPUT : RUN_FAIL     ;
+generators.register-standard testing.expect-failure : EXE        : LINK_FAIL    ;
+generators.register-standard testing.expect-success : EXE        : LINK         ;
+
+# Generator which runs an EXE and captures output.
+generators.register-standard testing.capture-output : EXE : RUN_OUTPUT ;
+
+# Generator which creates a target if sources run successfully. Differs from RUN
+# in that run output is not captured. The reason why it exists is that the 'run'
+# rule is much better for automated testing, but is not user-friendly (see
+# http://article.gmane.org/gmane.comp.lib.boost.build/6353).
+generators.register-standard testing.unit-test : EXE : UNIT_TEST ;
+
+
+# The action rules called by generators.
+
+# Causes the 'target' to exist after bjam invocation if and only if all the
+# dependencies were successfully built.
+#
+rule expect-success ( target : dependency + : requirements * )
+{
+    **passed** $(target) : $(sources) ;
+}
+
+
+# Causes the 'target' to exist after bjam invocation if and only if all some of
+# the dependencies were not successfully built.
+#
+rule expect-failure ( target : dependency + : properties * )
+{
+    local grist = [ MATCH ^<(.*)> : $(dependency:G) ] ;
+    local marker = $(dependency:G=$(grist)*fail) ;
+    (failed-as-expected) $(marker) ;
+    FAIL_EXPECTED $(dependency) ;
+    LOCATE on $(marker) = [ on $(dependency) return $(LOCATE) ] ;
+    RMOLD $(marker) ;
+    DEPENDS $(marker) : $(dependency) ;
+    DEPENDS $(target) : $(marker) ;
+    **passed** $(target) : $(marker) ;
+}
+
+
+# The rule/action combination used to report successful passing of a test.
+#
+rule **passed**
+{
+    # Dump all the tests, if needed. We do it here, since dump should happen
+    # only after all Jamfiles have been read, and there is no such place
+    # currently defined (but there should be).
+    if ! $(.dumped-tests) && ( --dump-tests in [ modules.peek : ARGV ] )
+    {
+        .dumped-tests = true ;
+        dump-tests ;
+    }
+
+    # Force deletion of the target, in case any dependencies failed to build.
+    RMOLD $(<) ;
+}
+
+
+# Used to create test files signifying passed tests.
+#
+actions **passed**
+{
+    echo passed > "$(<)"
+}
+
+
+# Used to create replacement object files that do not get created during tests
+# that are expected to fail.
+#
+actions (failed-as-expected)
+{
+    echo failed as expected > "$(<)"
+}
+
+
+rule run-path-setup ( target : source : properties * )
+{
+    # For testing, we need to make sure that all dynamic libraries needed by the
+    # test are found. So, we collect all paths from dependency libraries (via
+    # xdll-path property) and add whatever explicit dll-path user has specified.
+    # The resulting paths are added to the environment on each test invocation.
+    local dll-paths = [ feature.get-values <dll-path> : $(properties) ] ;
+    dll-paths += [ feature.get-values <xdll-path> : $(properties) ] ;
+    dll-paths += [ on $(source) return $(RUN_PATH) ] ;
+    dll-paths = [ sequence.unique $(dll-paths) ] ;
+    if $(dll-paths)
+    {
+        dll-paths = [ sequence.transform path.native : $(dll-paths) ] ;
+        PATH_SETUP on $(target) = [ common.prepend-path-variable-command
+            [ os.shared-library-path-variable ] : $(dll-paths) ] ;
+    }
+}
+
+
+local argv = [ modules.peek : ARGV ] ;
+
+toolset.flags testing.capture-output ARGS <testing.arg> ;
+toolset.flags testing.capture-output INPUT_FILES <testing.input-file> ;
+toolset.flags testing.capture-output LAUNCHER <testing.launcher> ;
+
+
+# Runs executable 'sources' and stores stdout in file 'target'. Unless
+# --preserve-test-targets command line option has been specified, removes the
+# executable. The 'target-to-remove' parameter controls what should be removed:
+#   - if 'none', does not remove anything, ever
+#   - if empty, removes 'source'
+#   - if non-empty and not 'none', contains a list of sources to remove.
+#
+rule capture-output ( target : source : properties * : targets-to-remove * )
+{
+    output-file on $(target) = $(target:S=.output) ;
+    LOCATE on $(target:S=.output) = [ on $(target) return $(LOCATE) ] ;
+
+    # The INCLUDES kill a warning about independent target...
+    INCLUDES $(target) : $(target:S=.output) ;
+    # but it also puts .output into dependency graph, so we must tell jam it is
+    # OK if it cannot find the target or updating rule.
+    NOCARE $(target:S=.output) ;
+
+    # This has two-fold effect. First it adds input files to the dependendency
+    # graph, preventing a warning. Second, it causes input files to be bound
+    # before target is created. Therefore, they are bound using SEARCH setting
+    # on them and not LOCATE setting of $(target), as in other case (due to jam
+    # bug).
+    DEPENDS $(target) : [ on $(target) return $(INPUT_FILES) ] ;
+
+    if $(targets-to-remove) = none
+    {
+        targets-to-remove = ;
+    }
+    else if ! $(targets-to-remove)
+    {
+        targets-to-remove = $(source) ;
+    }
+
+    run-path-setup $(target) : $(source) : $(properties) ;
+
+    if [ feature.get-values preserve-test-targets : $(properties) ] = off
+    {
+        TEMPORARY $(targets-to-remove) ;
+        # Set a second action on target that will be executed after capture
+        # output action. The 'RmTemps' rule has the 'ignore' modifier so it is
+        # always considered succeeded. This is needed for 'run-fail' test. For
+        # that test the target will be marked with FAIL_EXPECTED, and without
+        # 'ignore' successful execution will be negated and be reported as
+        # failure. With 'ignore' we do not detect a case where removing files
+        # fails, but it is not likely to happen.
+        RmTemps $(target) : $(targets-to-remove) ;
+    }
+}
+
+
+if [ os.name ] = NT
+{
+    .STATUS        = %status% ;
+    .SET_STATUS    = "set status=%ERRORLEVEL%" ;
+    .RUN_OUTPUT_NL = "echo." ;
+    .STATUS_0      = "%status% EQU 0 (" ;
+    .STATUS_NOT_0  = "%status% NEQ 0 (" ;
+    .VERBOSE       = "%verbose% EQU 1 (" ;
+    .ENDIF         = ")" ;
+    .SHELL_SET     = "set " ;
+    .CATENATE      = type ;
+    .CP            = copy ;
+}
+else
+{
+    .STATUS        = "$status" ;
+    .SET_STATUS    = "status=$?" ;
+    .RUN_OUTPUT_NL = "echo" ;
+    .STATUS_0      = "test $status -eq 0 ; then" ;
+    .STATUS_NOT_0  = "test $status -ne 0 ; then" ;
+    .VERBOSE       = "test $verbose -eq 1 ; then" ;
+    .ENDIF         = "fi" ;
+    .SHELL_SET     = "" ;
+    .CATENATE      = cat ;
+    .CP            = cp ;
+}
+
+
+.VERBOSE_TEST = 0 ;
+if --verbose-test in [ modules.peek : ARGV ]
+{
+    .VERBOSE_TEST = 1 ;
+}
+
+
+.RM = [ common.rm-command ] ;
+
+
+actions capture-output bind INPUT_FILES output-file
+{
+    $(PATH_SETUP)
+    $(LAUNCHER) "$(>)" $(ARGS) "$(INPUT_FILES)" > "$(output-file)" 2>&1
+    $(.SET_STATUS)
+    $(.RUN_OUTPUT_NL) >> "$(output-file)"
+    echo EXIT STATUS: $(.STATUS) >> "$(output-file)"
+    if $(.STATUS_0)
+        $(.CP) "$(output-file)" "$(<)"
+    $(.ENDIF)
+    $(.SHELL_SET)verbose=$(.VERBOSE_TEST)
+    if $(.STATUS_NOT_0)
+        $(.SHELL_SET)verbose=1
+    $(.ENDIF)
+    if $(.VERBOSE)
+        echo ====== BEGIN OUTPUT ======
+        $(.CATENATE) "$(output-file)"
+        echo ====== END OUTPUT ======
+    $(.ENDIF)
+    exit $(.STATUS)
+}
+
+
+actions quietly updated ignore piecemeal together RmTemps
+{
+    $(.RM) "$(>)"
+}
+
+
+.MAKE_FILE = [ common.file-creation-command ] ;
+
+toolset.flags testing.unit-test LAUNCHER <testing.launcher> ;
+toolset.flags testing.unit-test ARGS <testing.arg> ;
+
+
+rule unit-test ( target : source : properties * )
+{
+    run-path-setup $(target) : $(source) : $(properties) ;
+}
+
+
+actions unit-test
+{
+    $(PATH_SETUP)
+    $(LAUNCHER) $(>) $(ARGS) && $(.MAKE_FILE) $(<)
+}
+
+
+IMPORT $(__name__) : compile compile-fail run run-fail link link-fail
+    : : compile compile-fail run run-fail link link-fail ;
+
+
+type.register TIME : time ;
+generators.register-standard testing.time : : TIME ;
+
+
+rule record-time ( target : source : start end user system )
+{
+    local src-string = [$(source:G=:J=",")"] " ;
+    USER_TIME on $(target) += $(src-string)$(user) ;
+    SYSTEM_TIME on $(target) += $(src-string)$(system) ;
+}
+
+
+IMPORT testing : record-time : : testing.record-time ;
+
+
+# Calling this rule requests that Boost Build time how long it taks to build the
+# 'source' target and display the results both on the standard output and in the
+# 'target' file.
+#
+rule time ( target : source : properties *  )
+{
+    # Set up rule for recording timing information.
+    __TIMING_RULE__ on $(source) = testing.record-time $(target) ;
+
+    # Make sure that the source is rebuilt any time we need to retrieve that
+    # information.
+    REBUILDS $(target) : $(source) ;
+}
+
+
+actions time
+{
+    echo user: $(USER_TIME)
+    echo system: $(SYSTEM_TIME)
+
+    echo user: $(USER_TIME)" seconds" > "$(<)"
+    echo system: $(SYSTEM_TIME)" seconds" >> "$(<)"
+}
diff --git a/jam-files/boost-build/tools/testing.py b/jam-files/boost-build/tools/testing.py
new file mode 100644
index 00000000..3b53500c
--- /dev/null
+++ b/jam-files/boost-build/tools/testing.py
@@ -0,0 +1,342 @@
+# Status: ported, except for --out-xml
+# Base revision: 64488
+#
+# Copyright 2005 Dave Abrahams
+# Copyright 2002, 2003, 2004, 2005, 2010 Vladimir Prus
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+# This module implements regression testing framework. It declares a number of
+# main target rules which perform some action and, if the results are OK,
+# creates an output file.
+#
+# The exact list of rules is:
+# 'compile'       -- creates .test file if compilation of sources was
+#                    successful.
+# 'compile-fail'  -- creates .test file if compilation of sources failed.
+# 'run'           -- creates .test file is running of executable produced from
+#                    sources was successful. Also leaves behind .output file
+#                    with the output from program run.
+# 'run-fail'      -- same as above, but .test file is created if running fails.
+#
+# In all cases, presence of .test file is an indication that the test passed.
+# For more convenient reporting, you might want to use C++ Boost regression
+# testing utilities (see http://www.boost.org/more/regression.html).
+#
+# For historical reason, a 'unit-test' rule is available which has the same
+# syntax as 'exe' and behaves just like 'run'.
+
+# Things to do:
+#  - Teach compiler_status handle Jamfile.v2.
+# Notes:
+#  - <no-warn> is not implemented, since it is Como-specific, and it is not
+#    clear how to implement it
+#  - std::locale-support is not implemented (it is used in one test).
+
+import b2.build.feature as feature
+import b2.build.type as type
+import b2.build.targets as targets
+import b2.build.generators as generators
+import b2.build.toolset as toolset
+import b2.tools.common as common
+import b2.util.option as option
+import b2.build_system as build_system
+
+
+
+from b2.manager import get_manager
+from b2.util import stem, bjam_signature
+from b2.util.sequence import unique
+
+import bjam
+
+import re
+import os.path
+import sys
+
+def init():
+    pass
+
+# Feature controling the command used to lanch test programs.
+feature.feature("testing.launcher", [], ["free", "optional"])
+
+feature.feature("test-info", [], ["free", "incidental"])
+feature.feature("testing.arg", [], ["free", "incidental"])
+feature.feature("testing.input-file", [], ["free", "dependency"])
+
+feature.feature("preserve-test-targets", ["on", "off"], ["incidental", "propagated"])
+
+# Register target types.
+type.register("TEST", ["test"])
+type.register("COMPILE", [], "TEST")
+type.register("COMPILE_FAIL", [], "TEST")
+
+type.register("RUN_OUTPUT", ["run"])
+type.register("RUN", [], "TEST")
+type.register("RUN_FAIL", [], "TEST")
+
+type.register("LINK", [], "TEST")
+type.register("LINK_FAIL", [], "TEST")
+type.register("UNIT_TEST", ["passed"], "TEST")
+
+__all_tests = []
+
+# Declare the rules which create main targets. While the 'type' module already
+# creates rules with the same names for us, we need extra convenience: default
+# name of main target, so write our own versions.
+
+# Helper rule. Create a test target, using basename of first source if no target
+# name is explicitly passed. Remembers the created target in a global variable.
+def make_test(target_type, sources, requirements, target_name=None):
+
+    if not target_name:
+        target_name = stem(os.path.basename(sources[0]))
+
+    # Having periods (".") in the target name is problematic because the typed
+    # generator will strip the suffix and use the bare name for the file
+    # targets. Even though the location-prefix averts problems most times it
+    # does not prevent ambiguity issues when referring to the test targets. For
+    # example when using the XML log output. So we rename the target to remove
+    # the periods, and provide an alias for users.
+    real_name = target_name.replace(".", "~")
+
+    project = get_manager().projects().current()
+    # The <location-prefix> forces the build system for generate paths in the
+    # form '$build_dir/array1.test/gcc/debug'. This is necessary to allow
+    # post-processing tools to work.
+    t = get_manager().targets().create_typed_target(
+        type.type_from_rule_name(target_type), project, real_name, sources,
+        requirements + ["<location-prefix>" + real_name + ".test"], [], [])
+
+    # The alias to the real target, per period replacement above.
+    if real_name != target_name:
+        get_manager().projects().project_rules().all_names_["alias"](
+            target_name, [t])
+
+    # Remember the test (for --dump-tests). A good way would be to collect all
+    # given a project. This has some technical problems: e.g. we can not call
+    # this dump from a Jamfile since projects referred by 'build-project' are
+    # not available until the whole Jamfile has been loaded.
+    __all_tests.append(t)
+    return t
+
+
+# Note: passing more that one cpp file here is known to fail. Passing a cpp file
+# and a library target works.
+#
+@bjam_signature((["sources", "*"], ["requirements", "*"], ["target_name", "?"]))
+def compile(sources, requirements, target_name=None):
+    return make_test("compile", sources, requirements, target_name)
+
+@bjam_signature((["sources", "*"], ["requirements", "*"], ["target_name", "?"]))
+def compile_fail(sources, requirements, target_name=None):
+    return make_test("compile-fail", sources, requirements, target_name)
+
+@bjam_signature((["sources", "*"], ["requirements", "*"], ["target_name", "?"]))
+def link(sources, requirements, target_name=None):
+    return make_test("link", sources, requirements, target_name)
+
+@bjam_signature((["sources", "*"], ["requirements", "*"], ["target_name", "?"]))
+def link_fail(sources, requirements, target_name=None):
+    return make_test("link-fail", sources, requirements, target_name)
+
+def handle_input_files(input_files):
+    if len(input_files) > 1:
+        # Check that sorting made when creating property-set instance will not
+        # change the ordering.
+        if sorted(input_files) != input_files:
+            get_manager().errors()("Names of input files must be sorted alphabetically\n" +
+                                   "due to internal limitations")
+    return ["<testing.input-file>" + f for f in input_files]
+
+@bjam_signature((["sources", "*"], ["args", "*"], ["input_files", "*"],
+                 ["requirements", "*"], ["target_name", "?"],
+                 ["default_build", "*"]))                 
+def run(sources, args, input_files, requirements, target_name=None, default_build=[]):
+    if args:
+        requirements.append("<testing.arg>" + " ".join(args))
+    requirements.extend(handle_input_files(input_files))
+    return make_test("run", sources, requirements, target_name)
+
+@bjam_signature((["sources", "*"], ["args", "*"], ["input_files", "*"],
+                 ["requirements", "*"], ["target_name", "?"],
+                 ["default_build", "*"]))                 
+def run_fail(sources, args, input_files, requirements, target_name=None, default_build=[]):
+    if args:
+        requirements.append("<testing.arg>" + " ".join(args))
+    requirements.extend(handle_input_files(input_files))
+    return make_test("run-fail", sources, requirements, target_name)
+
+# Register all the rules
+for name in ["compile", "compile-fail", "link", "link-fail", "run", "run-fail"]:
+    get_manager().projects().add_rule(name, getattr(sys.modules[__name__], name.replace("-", "_")))
+
+# Use 'test-suite' as a synonym for 'alias', for backward compatibility.
+from b2.build.alias import alias
+get_manager().projects().add_rule("test-suite", alias)
+
+# For all main targets in 'project-module', which are typed targets with type
+# derived from 'TEST', produce some interesting information.
+#
+def dump_tests():
+    for t in __all_tests:
+        dump_test(t)
+
+# Given a project location in normalized form (slashes are forward), compute the
+# name of the Boost library.
+#
+__ln1 = re.compile("/(tools|libs)/(.*)/(test|example)")
+__ln2 = re.compile("/(tools|libs)/(.*)$")
+__ln3 = re.compile("(/status$)")
+def get_library_name(path):
+    
+    path = path.replace("\\", "/")
+    match1 = __ln1.match(path)
+    match2 = __ln2.match(path)
+    match3 = __ln3.match(path)
+
+    if match1:
+        return match1.group(2)
+    elif match2:
+        return match2.group(2)
+    elif match3:
+        return ""
+    elif option.get("dump-tests", False, True):
+        # The 'run' rule and others might be used outside boost. In that case,
+        # just return the path, since the 'library name' makes no sense.
+        return path
+
+# Was an XML dump requested?
+__out_xml = option.get("out-xml", False, True)
+
+# Takes a target (instance of 'basic-target') and prints
+#   - its type
+#   - its name
+#   - comments specified via the <test-info> property
+#   - relative location of all source from the project root.
+#
+def dump_test(target):
+    type = target.type()
+    name = target.name()
+    project = target.project()
+
+    project_root = project.get('project-root')
+    library = get_library_name(os.path.abspath(project.get('location')))
+    if library:
+        name = library + "/" + name
+
+    sources = target.sources()
+    source_files = []
+    for s in sources:
+        if isinstance(s, targets.FileReference):
+            location = os.path.abspath(os.path.join(s.location(), s.name()))
+            source_files.append(os.path.relpath(location, os.path.abspath(project_root)))
+
+    target_name = project.get('location') + "//" + target.name() + ".test"
+
+    test_info = target.requirements().get('test-info')
+    test_info = " ".join('"' + ti + '"' for ti in test_info)
+
+    # If the user requested XML output on the command-line, add the test info to
+    # that XML file rather than dumping them to stdout.
+    #if $(.out-xml)
+    #{
+#        local nl = "
+#" ;
+#        .contents on $(.out-xml) +=
+#            "$(nl)  <test type=\"$(type)\" name=\"$(name)\">"
+#            "$(nl)    <target><![CDATA[$(target-name)]]></target>"
+#            "$(nl)    <info><![CDATA[$(test-info)]]></info>"
+#            "$(nl)    <source><![CDATA[$(source-files)]]></source>"
+#            "$(nl)  </test>"
+#            ;
+#    }
+#    else
+
+    source_files = " ".join('"' + s + '"' for s in source_files)
+    if test_info:
+        print 'boost-test(%s) "%s" [%s] : %s' % (type, name, test_info, source_files)
+    else:
+        print 'boost-test(%s) "%s" : %s' % (type, name, source_files)
+
+# Register generators. Depending on target type, either 'expect-success' or
+# 'expect-failure' rule will be used.
+generators.register_standard("testing.expect-success", ["OBJ"], ["COMPILE"])
+generators.register_standard("testing.expect-failure", ["OBJ"], ["COMPILE_FAIL"])
+generators.register_standard("testing.expect-success", ["RUN_OUTPUT"], ["RUN"])
+generators.register_standard("testing.expect-failure", ["RUN_OUTPUT"], ["RUN_FAIL"])
+generators.register_standard("testing.expect-success", ["EXE"], ["LINK"])
+generators.register_standard("testing.expect-failure", ["EXE"], ["LINK_FAIL"])
+
+# Generator which runs an EXE and captures output.
+generators.register_standard("testing.capture-output", ["EXE"], ["RUN_OUTPUT"])
+
+# Generator which creates a target if sources run successfully. Differs from RUN
+# in that run output is not captured. The reason why it exists is that the 'run'
+# rule is much better for automated testing, but is not user-friendly (see
+# http://article.gmane.org/gmane.comp.lib.boost.build/6353).
+generators.register_standard("testing.unit-test", ["EXE"], ["UNIT_TEST"])
+
+# FIXME: if those calls are after bjam.call, then bjam will crash
+# when toolset.flags calls bjam.caller.
+toolset.flags("testing.capture-output", "ARGS", [], ["<testing.arg>"])
+toolset.flags("testing.capture-output", "INPUT_FILES", [], ["<testing.input-file>"])
+toolset.flags("testing.capture-output", "LAUNCHER", [], ["<testing.launcher>"])
+
+toolset.flags("testing.unit-test", "LAUNCHER", [], ["<testing.launcher>"])
+toolset.flags("testing.unit-test", "ARGS", [], ["<testing.arg>"])
+
+type.register("TIME", ["time"])
+generators.register_standard("testing.time", [], ["TIME"])
+
+
+# The following code sets up actions for this module. It's pretty convoluted,
+# but the basic points is that we most of actions are defined by Jam code
+# contained in testing-aux.jam, which we load into Jam module named 'testing'
+
+def run_path_setup(target, sources, ps):
+
+    # For testing, we need to make sure that all dynamic libraries needed by the
+    # test are found. So, we collect all paths from dependency libraries (via
+    # xdll-path property) and add whatever explicit dll-path user has specified.
+    # The resulting paths are added to the environment on each test invocation.
+    dll_paths = ps.get('dll-path')
+    dll_paths.extend(ps.get('xdll-path'))
+    dll_paths.extend(bjam.call("get-target-variable", sources, "RUN_PATH"))
+    dll_paths = unique(dll_paths)
+    if dll_paths:
+        bjam.call("set-target-variable", target, "PATH_SETUP",
+                  common.prepend_path_variable_command(
+                     common.shared_library_path_variable(), dll_paths))
+
+def capture_output_setup(target, sources, ps):
+    run_path_setup(target, sources, ps)
+
+    if ps.get('preserve-test-targets') == ['off']:
+        bjam.call("set-target-variable", target, "REMOVE_TEST_TARGETS", "1")
+
+get_manager().engine().register_bjam_action("testing.capture-output",
+                                            capture_output_setup)
+
+
+path = os.path.dirname(get_manager().projects().loaded_tool_module_path_[__name__])
+import b2.util.os_j
+get_manager().projects().project_rules()._import_rule("testing", "os.name",
+                                                      b2.util.os_j.name)
+import b2.tools.common
+get_manager().projects().project_rules()._import_rule("testing", "common.rm-command",
+                                                      b2.tools.common.rm_command)
+get_manager().projects().project_rules()._import_rule("testing", "common.file-creation-command",
+                                                      b2.tools.common.file_creation_command)
+
+bjam.call("load", "testing", os.path.join(path, "testing-aux.jam"))
+
+
+for name in ["expect-success", "expect-failure", "time"]:
+    get_manager().engine().register_bjam_action("testing." + name)
+
+get_manager().engine().register_bjam_action("testing.unit-test",
+                                            run_path_setup)
+
+if option.get("dump-tests", False, True):
+    build_system.add_pre_build_hook(dump_tests)
diff --git a/jam-files/boost-build/tools/types/__init__.py b/jam-files/boost-build/tools/types/__init__.py
new file mode 100644
index 00000000..f972b714
--- /dev/null
+++ b/jam-files/boost-build/tools/types/__init__.py
@@ -0,0 +1,18 @@
+__all__ = [
+    'asm',
+    'cpp',
+    'exe',
+    'html',
+    'lib',
+    'obj',
+    'rsp',
+]
+
+def register_all ():
+    for i in __all__:
+        m = __import__ (__name__ + '.' + i)
+        reg = i + '.register ()'
+        #exec (reg)
+
+# TODO: (PF) I thought these would be imported automatically. Anyone knows why they aren't?
+register_all ()
diff --git a/jam-files/boost-build/tools/types/asm.jam b/jam-files/boost-build/tools/types/asm.jam
new file mode 100644
index 00000000..a340db36
--- /dev/null
+++ b/jam-files/boost-build/tools/types/asm.jam
@@ -0,0 +1,4 @@
+# Copyright Craig Rodrigues 2005. Distributed under the Boost
+# Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+type ASM : s S asm ;
diff --git a/jam-files/boost-build/tools/types/asm.py b/jam-files/boost-build/tools/types/asm.py
new file mode 100644
index 00000000..b4e1c30e
--- /dev/null
+++ b/jam-files/boost-build/tools/types/asm.py
@@ -0,0 +1,13 @@
+# Copyright Craig Rodrigues 2005.
+# Copyright (c) 2008 Steven Watanabe
+#
+# Distributed under the Boost
+# Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+from b2.build import type
+
+def register():
+    type.register_type('ASM', ['s', 'S', 'asm'])
+
+register()
diff --git a/jam-files/boost-build/tools/types/cpp.jam b/jam-files/boost-build/tools/types/cpp.jam
new file mode 100644
index 00000000..3159cdd7
--- /dev/null
+++ b/jam-files/boost-build/tools/types/cpp.jam
@@ -0,0 +1,86 @@
+# Copyright David Abrahams 2004.
+# Copyright 2002, 2003, 2004, 2005, 2006 Vladimir Prus
+# Copyright 2010 Rene Rivera
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+import type ;
+import scanner ;
+
+class c-scanner : scanner
+{
+    import path ;
+    import regex ;
+    import scanner ;
+    import sequence ;
+    import virtual-target ;
+
+    rule __init__ ( includes * )
+    {
+        scanner.__init__ ;
+
+        for local i in $(includes)
+        {
+            self.includes += [ sequence.transform path.native
+                                : [ regex.split $(i:G=) "&&" ] ] ;
+        }
+    }
+
+    rule pattern ( )
+    {
+        return "#[ \t]*include[ ]*(<(.*)>|\"(.*)\")" ;
+    }
+
+    rule process ( target : matches * : binding )
+    {
+        local angle  = [ regex.transform $(matches) : "<(.*)>"   ] ;
+        angle = [ sequence.transform path.native : $(angle) ] ;
+        local quoted = [ regex.transform $(matches) : "\"(.*)\"" ] ;
+        quoted = [ sequence.transform path.native : $(quoted) ] ;
+
+        # CONSIDER: the new scoping rule seem to defeat "on target" variables.
+        local g = [ on $(target) return $(HDRGRIST) ] ;
+        local b = [ NORMALIZE_PATH $(binding:D) ] ;
+
+        # Attach binding of including file to included targets. When a target is
+        # directly created from virtual target this extra information is
+        # unnecessary. But in other cases, it allows us to distinguish between
+        # two headers of the same name included from different places. We do not
+        # need this extra information for angle includes, since they should not
+        # depend on including file (we can not get literal "." in include path).
+        local g2 = $(g)"#"$(b) ;
+
+        angle = $(angle:G=$(g)) ;
+        quoted = $(quoted:G=$(g2)) ;
+
+        local all = $(angle) $(quoted) ;
+
+        INCLUDES $(target) : $(all) ;
+        NOCARE $(all) ;
+        SEARCH on $(angle) = $(self.includes:G=) ;
+        SEARCH on $(quoted) = $(b) $(self.includes:G=) ;
+
+        # Just propagate the current scanner to includes in hope that includes
+        # do not change scanners.
+        scanner.propagate $(__name__) : $(angle) $(quoted) : $(target) ;
+
+        ISFILE $(angle) $(quoted) ;
+    }
+}
+
+scanner.register c-scanner : include ;
+
+type.register CPP : cpp cxx cc ;
+type.register H   : h ;
+type.register HPP : hpp : H ;
+type.register C   : c ;
+
+# It most cases where a CPP file or a H file is a source of some action, we
+# should rebuild the result if any of files included by CPP/H are changed. One
+# case when this is not needed is installation, which is handled specifically.
+type.set-scanner CPP : c-scanner ;
+type.set-scanner C   : c-scanner ;
+# One case where scanning of H/HPP files is necessary is PCH generation -- if
+# any header included by HPP being precompiled changes, we need to recompile the
+# header.
+type.set-scanner H   : c-scanner ;
+type.set-scanner HPP : c-scanner ;
diff --git a/jam-files/boost-build/tools/types/cpp.py b/jam-files/boost-build/tools/types/cpp.py
new file mode 100644
index 00000000..7b56111c
--- /dev/null
+++ b/jam-files/boost-build/tools/types/cpp.py
@@ -0,0 +1,10 @@
+# Copyright David Abrahams 2004. Distributed under the Boost
+# Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+from b2.build import type
+
+def register ():
+    type.register_type ('CPP', ['cpp', 'cxx', 'cc'])
+
+register ()
diff --git a/jam-files/boost-build/tools/types/exe.jam b/jam-files/boost-build/tools/types/exe.jam
new file mode 100644
index 00000000..47109513
--- /dev/null
+++ b/jam-files/boost-build/tools/types/exe.jam
@@ -0,0 +1,9 @@
+# Copyright David Abrahams 2004. Distributed under the Boost
+# Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+import type ;
+
+type.register EXE ;
+type.set-generated-target-suffix EXE : <target-os>windows : "exe" ;
+type.set-generated-target-suffix EXE : <target-os>cygwin : "exe" ;
diff --git a/jam-files/boost-build/tools/types/exe.py b/jam-files/boost-build/tools/types/exe.py
new file mode 100644
index 00000000..a4935e24
--- /dev/null
+++ b/jam-files/boost-build/tools/types/exe.py
@@ -0,0 +1,11 @@
+# Copyright David Abrahams 2004. Distributed under the Boost
+# Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+from b2.build import type
+
+def register ():
+    type.register_type ('EXE', ['exe'], None, ['NT', 'CYGWIN'])
+    type.register_type ('EXE', [], None, [])
+
+register ()
diff --git a/jam-files/boost-build/tools/types/html.jam b/jam-files/boost-build/tools/types/html.jam
new file mode 100644
index 00000000..5cd337d0
--- /dev/null
+++ b/jam-files/boost-build/tools/types/html.jam
@@ -0,0 +1,4 @@
+# Copyright David Abrahams 2004. Distributed under the Boost
+# Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+type HTML : html ;
diff --git a/jam-files/boost-build/tools/types/html.py b/jam-files/boost-build/tools/types/html.py
new file mode 100644
index 00000000..63af4d90
--- /dev/null
+++ b/jam-files/boost-build/tools/types/html.py
@@ -0,0 +1,10 @@
+# Copyright David Abrahams 2004. Distributed under the Boost
+# Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+from b2.build import type
+
+def register ():
+    type.register_type ('HTML', ['html'])
+
+register ()
diff --git a/jam-files/boost-build/tools/types/lib.jam b/jam-files/boost-build/tools/types/lib.jam
new file mode 100644
index 00000000..854ab8fd
--- /dev/null
+++ b/jam-files/boost-build/tools/types/lib.jam
@@ -0,0 +1,74 @@
+# Copyright David Abrahams 2004. Distributed under the Boost
+# Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+import type ; # for set-generated-target-suffix
+import os ;
+
+# The following naming scheme is used for libraries.
+#
+# On *nix:
+#     libxxx.a       static library
+#     libxxx.so      shared library
+#
+# On windows (msvc)
+#     libxxx.lib     static library
+#     xxx.dll        DLL
+#     xxx.lib        import library
+#
+# On windows (mingw):
+#     libxxx.a       static library
+#     libxxx.dll     DLL
+#     libxxx.dll.a   import library
+#
+# On cygwin i.e. <target-os>cygwin
+#     libxxx.a       static library
+#     cygxxx.dll     DLL
+#     libxxx.dll.a   import library
+#
+
+type.register LIB ;
+
+# FIXME: should not register both extensions on both platforms.
+type.register STATIC_LIB : a lib : LIB ;
+
+# The 'lib' prefix is used everywhere
+type.set-generated-target-prefix STATIC_LIB : : lib ;
+
+# Use '.lib' suffix for windows
+type.set-generated-target-suffix STATIC_LIB : <target-os>windows : lib ;
+
+# Except with gcc.
+type.set-generated-target-suffix STATIC_LIB : <toolset>gcc <target-os>windows : a ;
+
+# Use xxx.lib for import libs
+type IMPORT_LIB : : STATIC_LIB ;
+type.set-generated-target-prefix IMPORT_LIB : : "" ;
+type.set-generated-target-suffix IMPORT_LIB : : lib ;
+
+# Except with gcc (mingw or cygwin), where use libxxx.dll.a
+type.set-generated-target-prefix IMPORT_LIB : <toolset>gcc : lib ;
+type.set-generated-target-suffix IMPORT_LIB : <toolset>gcc : dll.a ;
+
+type.register SHARED_LIB : so dll dylib : LIB ;
+
+# Both mingw and cygwin use libxxx.dll naming scheme.
+# On Linux, use "lib" prefix
+type.set-generated-target-prefix SHARED_LIB : : lib ;
+# But don't use it on windows
+type.set-generated-target-prefix SHARED_LIB : <target-os>windows : "" ;
+# But use it again on mingw
+type.set-generated-target-prefix SHARED_LIB : <toolset>gcc <target-os>windows : lib ;
+# And use 'cyg' on cygwin
+type.set-generated-target-prefix SHARED_LIB : <target-os>cygwin : cyg ;
+
+
+type.set-generated-target-suffix SHARED_LIB : <target-os>windows : dll ;
+type.set-generated-target-suffix SHARED_LIB : <target-os>cygwin : dll ;
+type.set-generated-target-suffix SHARED_LIB : <target-os>darwin : dylib ;
+
+type SEARCHED_LIB : : LIB ;
+# This is needed so that when we create a target of SEARCHED_LIB
+# type, there's no prefix or suffix automatically added.
+type.set-generated-target-prefix SEARCHED_LIB : : "" ;
+type.set-generated-target-suffix SEARCHED_LIB : : "" ;
diff --git a/jam-files/boost-build/tools/types/lib.py b/jam-files/boost-build/tools/types/lib.py
new file mode 100644
index 00000000..d0ec1fb5
--- /dev/null
+++ b/jam-files/boost-build/tools/types/lib.py
@@ -0,0 +1,77 @@
+# Status: ported
+# Base revision: 64456.
+# Copyright David Abrahams 2004.
+# Copyright Vladimir Prus 2010.
+# Distributed under the Boost
+# Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+import b2.build.type as type
+
+# The following naming scheme is used for libraries.
+#
+# On *nix:
+#     libxxx.a       static library
+#     libxxx.so      shared library
+#
+# On windows (msvc)
+#     libxxx.lib     static library
+#     xxx.dll        DLL
+#     xxx.lib        import library
+#
+# On windows (mingw):
+#     libxxx.a       static library
+#     libxxx.dll     DLL
+#     libxxx.dll.a   import library
+#
+# On cygwin i.e. <target-os>cygwin
+#     libxxx.a       static library
+#     cygxxx.dll     DLL
+#     libxxx.dll.a   import library
+#
+
+type.register('LIB')
+
+# FIXME: should not register both extensions on both platforms.
+type.register('STATIC_LIB', ['a', 'lib'], 'LIB')
+
+# The 'lib' prefix is used everywhere
+type.set_generated_target_prefix('STATIC_LIB', [], 'lib')
+
+# Use '.lib' suffix for windows
+type.set_generated_target_suffix('STATIC_LIB', ['<target-os>windows'], 'lib')
+
+# Except with gcc.
+type.set_generated_target_suffix('STATIC_LIB', ['<toolset>gcc', '<target-os>windows'], 'a')
+
+# Use xxx.lib for import libs
+type.register('IMPORT_LIB', [], 'STATIC_LIB')
+type.set_generated_target_prefix('IMPORT_LIB', [], '')
+type.set_generated_target_suffix('IMPORT_LIB', [], 'lib')
+
+# Except with gcc (mingw or cygwin), where use libxxx.dll.a
+type.set_generated_target_prefix('IMPORT_LIB', ['<toolset>gcc'], 'lib')
+type.set_generated_target_suffix('IMPORT_LIB', ['<toolset>gcc'], 'dll.a')
+
+type.register('SHARED_LIB', ['so', 'dll', 'dylib'], 'LIB')
+
+# Both mingw and cygwin use libxxx.dll naming scheme.
+# On Linux, use "lib" prefix
+type.set_generated_target_prefix('SHARED_LIB', [], 'lib')
+# But don't use it on windows
+type.set_generated_target_prefix('SHARED_LIB', ['<target-os>windows'], '')
+# But use it again on mingw
+type.set_generated_target_prefix('SHARED_LIB', ['<toolset>gcc', '<target-os>windows'], 'lib')
+# And use 'cyg' on cygwin
+type.set_generated_target_prefix('SHARED_LIB', ['<target-os>cygwin'], 'cyg')
+
+
+type.set_generated_target_suffix('SHARED_LIB', ['<target-os>windows'], 'dll')
+type.set_generated_target_suffix('SHARED_LIB', ['<target-os>cygwin'], 'dll')
+type.set_generated_target_suffix('SHARED_LIB', ['<target-os>darwin'], 'dylib')
+
+type.register('SEARCHED_LIB', [], 'LIB')
+# This is needed so that when we create a target of SEARCHED_LIB
+# type, there's no prefix or suffix automatically added.
+type.set_generated_target_prefix('SEARCHED_LIB', [], '')
+type.set_generated_target_suffix('SEARCHED_LIB', [], '')
diff --git a/jam-files/boost-build/tools/types/obj.jam b/jam-files/boost-build/tools/types/obj.jam
new file mode 100644
index 00000000..6afbcaa6
--- /dev/null
+++ b/jam-files/boost-build/tools/types/obj.jam
@@ -0,0 +1,9 @@
+# Copyright David Abrahams 2004. Distributed under the Boost
+# Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+import type ;
+
+type.register OBJ : o obj ;
+type.set-generated-target-suffix OBJ : <target-os>windows : obj ;
+type.set-generated-target-suffix OBJ : <target-os>cygwin : obj ;
diff --git a/jam-files/boost-build/tools/types/obj.py b/jam-files/boost-build/tools/types/obj.py
new file mode 100644
index 00000000..e61e99a8
--- /dev/null
+++ b/jam-files/boost-build/tools/types/obj.py
@@ -0,0 +1,11 @@
+# Copyright David Abrahams 2004. Distributed under the Boost
+# Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+from b2.build import type
+
+def register ():
+    type.register_type ('OBJ', ['obj'], None, ['NT', 'CYGWIN'])
+    type.register_type ('OBJ', ['o'])
+
+register ()
diff --git a/jam-files/boost-build/tools/types/objc.jam b/jam-files/boost-build/tools/types/objc.jam
new file mode 100644
index 00000000..709cbd0c
--- /dev/null
+++ b/jam-files/boost-build/tools/types/objc.jam
@@ -0,0 +1,26 @@
+# Copyright Rene Rivera 2008, 2010.
+# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+import type ;
+import scanner ;
+import types/cpp ;
+
+class objc-scanner : c-scanner
+{
+    rule __init__ ( includes * )
+    {
+        c-scanner.__init__ $(includes) ;
+    }
+
+    rule pattern ( )
+    {
+        return "#[ \t]*include|import[ ]*(<(.*)>|\"(.*)\")" ;
+    }
+}
+
+scanner.register objc-scanner : include ;
+
+type.register OBJECTIVE_C : m ;
+type.register OBJECTIVE_CPP : mm ;
+type.set-scanner OBJECTIVE_C : objc-scanner ;
+type.set-scanner OBJECTIVE_CPP : objc-scanner ;
diff --git a/jam-files/boost-build/tools/types/preprocessed.jam b/jam-files/boost-build/tools/types/preprocessed.jam
new file mode 100644
index 00000000..c9187ba6
--- /dev/null
+++ b/jam-files/boost-build/tools/types/preprocessed.jam
@@ -0,0 +1,9 @@
+# Copyright Steven Watanabe 2011
+# Distributed under the Boost Software License Version 1.0. (See
+# accompanying file LICENSE_1_0.txt or copy at
+# http://www.boost.org/LICENSE_1_0.txt)
+
+import type ;
+
+type.register PREPROCESSED_C : i : C ;
+type.register PREPROCESSED_CPP : ii : CPP ;
diff --git a/jam-files/boost-build/tools/types/qt.jam b/jam-files/boost-build/tools/types/qt.jam
new file mode 100644
index 00000000..6d1dfbd4
--- /dev/null
+++ b/jam-files/boost-build/tools/types/qt.jam
@@ -0,0 +1,10 @@
+# Copyright Vladimir Prus 2005. Distributed under the Boost
+# Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+type UI : ui ;
+type QRC : qrc ;
+type MOCCABLE_CPP ;
+type MOCCABLE_H ;
+# Result of running moc.
+type MOC : moc : H ;
diff --git a/jam-files/boost-build/tools/types/register.jam b/jam-files/boost-build/tools/types/register.jam
new file mode 100644
index 00000000..203992ca
--- /dev/null
+++ b/jam-files/boost-build/tools/types/register.jam
@@ -0,0 +1,39 @@
+# Copyright David Abrahams 2004. Distributed under the Boost
+# Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+# This module's job is to automatically import all the type
+# registration modules in its directory.
+import type os path modules ;
+
+# Register the given type on the specified OSes, or on remaining OSes
+# if os is not specified.  This rule is injected into each of the type
+# modules for the sake of convenience.
+local rule type ( type : suffixes * : base-type ? : os * )
+{
+    if ! [ type.registered $(type) ]
+    {
+        if ( ! $(os) ) || [ os.name ] in $(os)
+        {
+            type.register $(type) : $(suffixes) : $(base-type) ;
+        }
+    }
+}
+
+.this-module's-file = [ modules.binding $(__name__) ] ;
+.this-module's-dir = [ path.parent $(.this-module's-file) ] ;
+.sibling-jamfiles =  [ path.glob $(.this-module's-dir) : *.jam ] ;
+.sibling-modules = [ MATCH ^(.*)\.jam$ : $(.sibling-jamfiles) ] ;
+
+# A loop over all modules in this directory
+for m in $(.sibling-modules)
+{
+    m = [ path.basename $(m) ] ;
+    m = types/$(m) ;
+    
+    # Inject the type rule into the new module
+    IMPORT $(__name__) : type : $(m) : type ;
+    import $(m) ;
+}
+
+
diff --git a/jam-files/boost-build/tools/types/rsp.jam b/jam-files/boost-build/tools/types/rsp.jam
new file mode 100644
index 00000000..bdf8a7c9
--- /dev/null
+++ b/jam-files/boost-build/tools/types/rsp.jam
@@ -0,0 +1,4 @@
+# Copyright David Abrahams 2004. Distributed under the Boost
+# Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+type RSP : rsp ;
diff --git a/jam-files/boost-build/tools/types/rsp.py b/jam-files/boost-build/tools/types/rsp.py
new file mode 100644
index 00000000..ccb379e9
--- /dev/null
+++ b/jam-files/boost-build/tools/types/rsp.py
@@ -0,0 +1,10 @@
+# Copyright David Abrahams 2004. Distributed under the Boost
+# Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+from b2.build import type
+
+def register ():
+    type.register_type ('RSP', ['rsp'])
+
+register ()
diff --git a/jam-files/boost-build/tools/unix.jam b/jam-files/boost-build/tools/unix.jam
new file mode 100644
index 00000000..75949851
--- /dev/null
+++ b/jam-files/boost-build/tools/unix.jam
@@ -0,0 +1,224 @@
+#  Copyright (c) 2004 Vladimir Prus.
+#
+#  Use, modification and distribution is subject to the Boost Software
+#  License Version 1.0. (See accompanying file LICENSE_1_0.txt or
+#  http://www.boost.org/LICENSE_1_0.txt)
+
+#  This file implements linking semantic common to all unixes. On unix, static
+#  libraries must be specified in a fixed order on the linker command line. Generators
+#  declared there store information about the order and use it property.
+
+import feature ;
+import "class" : new ;
+import generators ;
+import type ;
+import set ;
+import order ;
+import builtin ;
+
+class unix-linking-generator : linking-generator
+{
+    import property-set ;
+    import type ;
+    import unix ;
+    
+    rule __init__ ( id 
+        composing ? : # Specify if generator is composing. The generator will be
+        # composing if non-empty string is passed, or parameter is
+        # not given. To make generator non-composing, pass empty
+        # string ("")
+        source-types + : target-types + : 
+        requirements * )
+    {
+        composing ?= true ;
+        generator.__init__ $(id) $(composing) : $(source-types) : $(target-types) :
+          $(requirements) ;
+    }
+    
+    rule run ( project name ? : property-set : sources + )
+    {   
+        local result = [ linking-generator.run $(project) $(name) : $(property-set)
+          : $(sources) ] ;
+        
+        unix.set-library-order $(sources) : $(property-set) : $(result[2-]) ;
+                                
+        return $(result) ;
+    }
+    
+    rule generated-targets ( sources + : property-set : project name ? )
+    {
+        local sources2 ;
+        local libraries ;
+        for local l in $(sources)
+        {
+            if [ type.is-derived [ $(l).type ] LIB ]
+            {
+                libraries += $(l) ;
+            }
+            else
+            {
+                sources2 += $(l) ;
+            }            
+        }
+        
+        sources = $(sources2) [ unix.order-libraries $(libraries) ] ;
+        
+        return [ linking-generator.generated-targets $(sources) : $(property-set)
+          : $(project) $(name) ] ;
+    }
+    
+} 
+
+class unix-archive-generator : archive-generator
+{
+    import unix ; 
+
+    rule __init__ ( id composing ? : source-types + : target-types + : 
+        requirements * )
+    {
+        composing ?= true ;
+        archive-generator.__init__ $(id) $(composing) : $(source-types) : $(target-types) :
+          $(requirements) ;
+    }
+        
+    rule run ( project name ? : property-set : sources + )
+    {                                
+        local result = [ archive-generator.run $(project) $(name) : $(property-set)
+          : $(sources) ] ;
+        
+        unix.set-library-order $(sources) : $(property-set) : $(result[2-]) ;
+        
+        return $(result) ;
+
+    }    
+}
+
+class unix-searched-lib-generator : searched-lib-generator
+{
+    import unix ;
+    rule __init__ ( * : * )
+    { 
+        generator.__init__ 
+          $(1) : $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ;
+    }
+    
+    rule optional-properties ( )
+    {
+        return $(self.requirements) ;
+    }
+              
+    rule run ( project name ? : property-set : sources * )
+    {
+        local result = [ searched-lib-generator.run $(project) $(name) 
+          : $(property-set) : $(sources) ] ;
+        
+        unix.set-library-order $(sources) : $(property-set) : $(result[2-]) ;
+        
+        return $(result) ;
+    }    
+}
+
+class unix-prebuilt-lib-generator : generator
+{
+    import unix ;
+    rule __init__ ( * : * )
+    {
+        generator.__init__ $(1) : $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ;
+    }
+
+    rule run ( project name ? : property-set : sources * )
+    {
+        local f = [ $(property-set).get <file> ] ;
+        unix.set-library-order-aux $(f) : $(sources) ;
+        return $(f) $(sources) ;
+    }    
+}
+
+generators.register 
+  [ new unix-prebuilt-lib-generator unix.prebuilt : : LIB 
+      : <file> <toolset>unix ] ;
+
+generators.override unix.prebuilt : builtin.lib-generator ;
+
+
+# Declare generators
+generators.register [ new unix-linking-generator unix.link : LIB OBJ : EXE 
+    : <toolset>unix ] ;
+
+generators.register [ new unix-archive-generator unix.archive : OBJ : STATIC_LIB 
+    : <toolset>unix ] ;
+
+generators.register [ new unix-linking-generator unix.link.dll : LIB OBJ : SHARED_LIB 
+    : <toolset>unix ] ;
+
+generators.register [ new unix-searched-lib-generator 
+   unix.searched-lib-generator : : SEARCHED_LIB : <toolset>unix ] ;
+
+
+# The derived toolset must specify their own actions.
+actions link {
+}
+
+actions link.dll {
+}
+
+actions archive {    
+}
+
+actions searched-lib-generator {    
+}
+
+actions prebuilt {
+}
+
+    
+
+
+
+.order = [ new order ] ;
+
+rule set-library-order-aux ( from * : to * )
+{        
+    for local f in $(from)
+    {
+        for local t in $(to)
+        {            
+            if $(f) != $(t)
+            {                
+                $(.order).add-pair $(f) $(t) ;
+            }            
+        }        
+    }    
+}
+
+rule set-library-order ( sources * : property-set : result * )
+{
+    local used-libraries ;
+    local deps = [ $(property-set).dependency ] ;        
+    for local l in $(sources) $(deps:G=)        
+    {
+        if [ $(l).type ] && [ type.is-derived [ $(l).type ] LIB ]
+        {
+            used-libraries += $(l) ;
+        }
+    }
+
+    local created-libraries ;
+    for local l in $(result)
+    {
+        if [ $(l).type ] && [ type.is-derived [ $(l).type ] LIB ] 
+        {
+            created-libraries += $(l) ;
+        }            
+    }
+    
+    created-libraries = [ set.difference $(created-libraries) : $(used-libraries) ] ;
+    set-library-order-aux $(created-libraries) : $(used-libraries) ;
+}
+
+rule order-libraries ( libraries * )
+{
+    local r = [ $(.order).order $(libraries) ] ;
+    return $(r) ;
+}
+     
\ No newline at end of file
diff --git a/jam-files/boost-build/tools/unix.py b/jam-files/boost-build/tools/unix.py
new file mode 100644
index 00000000..d409c2e4
--- /dev/null
+++ b/jam-files/boost-build/tools/unix.py
@@ -0,0 +1,150 @@
+#  Copyright (c) 2004 Vladimir Prus.
+#
+#  Use, modification and distribution is subject to the Boost Software
+#  License Version 1.0. (See accompanying file LICENSE_1_0.txt or
+#  http://www.boost.org/LICENSE_1_0.txt)
+
+""" This file implements linking semantics common to all unixes. On unix, static
+    libraries must be specified in a fixed order on the linker command line. Generators
+    declared there store information about the order and use it properly.
+"""
+
+import builtin
+from b2.build import generators, type
+from b2.util.utility import *
+from b2.util import set, sequence
+
+class UnixLinkingGenerator (builtin.LinkingGenerator):
+    
+    def __init__ (self, id, composing, source_types, target_types, requirements):
+        builtin.LinkingGenerator.__init__ (self, id, composing, source_types, target_types, requirements)
+    
+    def run (self, project, name, prop_set, sources):
+        result = builtin.LinkingGenerator.run (self, project, name, prop_set, sources)
+        if result:
+            set_library_order (project.manager (), sources, prop_set, result [1])
+                                
+        return result
+    
+    def generated_targets (self, sources, prop_set, project, name):
+        sources2 = []
+        libraries = []
+        for l in sources:
+            if type.is_derived (l.type (), 'LIB'):
+                libraries.append (l)
+
+            else:
+                sources2.append (l)
+        
+        sources = sources2 + order_libraries (libraries)
+        
+        return builtin.LinkingGenerator.generated_targets (self, sources, prop_set, project, name)
+
+
+class UnixArchiveGenerator (builtin.ArchiveGenerator):
+    def __init__ (self, id, composing, source_types, target_types_and_names, requirements):
+        builtin.ArchiveGenerator.__init__ (self, id, composing, source_types, target_types_and_names, requirements)
+        
+    def run (self, project, name, prop_set, sources):
+        result = builtin.ArchiveGenerator.run(self, project, name, prop_set, sources)
+        set_library_order(project.manager(), sources, prop_set, result)
+        return result
+
+class UnixSearchedLibGenerator (builtin.SearchedLibGenerator):
+    
+    def __init__ (self):
+        builtin.SearchedLibGenerator.__init__ (self)
+    
+    def optional_properties (self):
+        return self.requirements ()
+              
+    def run (self, project, name, prop_set, sources, multiple):
+        result = SearchedLibGenerator.run (project, name, prop_set, sources, multiple)
+        
+        set_library_order (sources, prop_set, result)
+        
+        return result
+
+class UnixPrebuiltLibGenerator (generators.Generator):
+    def __init__ (self, id, composing, source_types, target_types_and_names, requirements):
+        generators.Generator.__init__ (self, id, composing, source_types, target_types_and_names, requirements)
+
+    def run (self, project, name, prop_set, sources, multiple):
+        f = prop_set.get ('<file>')
+        set_library_order_aux (f, sources)
+        return (f, sources)
+
+### # The derived toolset must specify their own rules and actions.
+# FIXME: restore?
+# action.register ('unix.prebuilt', None, None)
+
+
+generators.register (UnixPrebuiltLibGenerator ('unix.prebuilt', False, [], ['LIB'], ['<file>', '<toolset>unix']))
+
+
+
+
+
+### # Declare generators
+### generators.register [ new UnixLinkingGenerator unix.link : LIB OBJ : EXE 
+###     : <toolset>unix ] ;
+generators.register (UnixArchiveGenerator ('unix.archive', True, ['OBJ'], ['STATIC_LIB'], ['<toolset>unix']))
+
+### generators.register [ new UnixLinkingGenerator unix.link.dll : LIB OBJ : SHARED_LIB 
+###     : <toolset>unix ] ;
+### 
+### generators.register [ new UnixSearchedLibGenerator 
+###    unix.SearchedLibGenerator : : SEARCHED_LIB : <toolset>unix ] ;
+### 
+### 
+### # The derived toolset must specify their own actions.
+### actions link {
+### }
+### 
+### actions link.dll {
+### }
+
+def unix_archive (manager, targets, sources, properties):
+    pass
+
+# FIXME: restore?
+#action.register ('unix.archive', unix_archive, [''])
+
+### actions searched-lib-generator {    
+### }
+### 
+### actions prebuilt {
+### }
+
+
+from b2.util.order import Order
+__order = Order ()
+
+def set_library_order_aux (from_libs, to_libs):
+    for f in from_libs:
+        for t in to_libs:
+            if f != t:
+                __order.add_pair (f, t)
+
+def set_library_order (manager, sources, prop_set, result):
+    used_libraries = []
+    deps = prop_set.dependency ()
+
+    sources.extend(d.value() for d in deps)
+    sources = sequence.unique(sources)
+
+    for l in sources:
+        if l.type () and type.is_derived (l.type (), 'LIB'):
+            used_libraries.append (l)
+
+    created_libraries = []
+    for l in result:
+        if l.type () and type.is_derived (l.type (), 'LIB'):
+            created_libraries.append (l)
+    
+    created_libraries = set.difference (created_libraries, used_libraries)
+    set_library_order_aux (created_libraries, used_libraries)
+
+def order_libraries (libraries):
+    return __order.order (libraries)
+     
diff --git a/jam-files/boost-build/tools/vacpp.jam b/jam-files/boost-build/tools/vacpp.jam
new file mode 100644
index 00000000..f4080fc0
--- /dev/null
+++ b/jam-files/boost-build/tools/vacpp.jam
@@ -0,0 +1,150 @@
+# Copyright Vladimir Prus 2004.
+# Copyright Toon Knapen 2004.
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt
+# or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+#
+# Boost.Build V2 toolset for the IBM XL C++ compiler
+#
+
+import toolset : flags ;
+import feature ;
+import common ;
+import generators ;
+import os ;
+
+feature.extend toolset : vacpp ;
+toolset.inherit vacpp : unix ;
+generators.override vacpp.prebuilt : builtin.prebuilt ;
+generators.override vacpp.searched-lib-generator : searched-lib-generator ;
+
+# Configure the vacpp toolset
+rule init ( version ? : command * : options * )
+{
+    local condition = [ 
+        common.check-init-parameters vacpp : version $(version) ] ;
+              
+    command = [ common.get-invocation-command vacpp : xlC
+        : $(command) : "/usr/vacpp/bin/xlC" ] ;
+        
+    common.handle-options vacpp : $(condition) : $(command) : $(options) ;
+}
+
+# Declare generators
+generators.register-c-compiler vacpp.compile.c : C : OBJ : <toolset>vacpp ;
+generators.register-c-compiler vacpp.compile.c++ : CPP : OBJ : <toolset>vacpp ;
+
+# Allow C++ style comments in C files
+flags vacpp CFLAGS : -qcpluscmt ;
+
+# Declare flags
+flags vacpp CFLAGS <optimization>off : -qNOOPTimize ;
+flags vacpp CFLAGS <optimization>speed : -O3 -qstrict ;
+flags vacpp CFLAGS <optimization>space : -O2 -qcompact ;
+
+# Discretionary inlining (not recommended)
+flags vacpp CFLAGS <inlining>off : -qnoinline ;
+flags vacpp CFLAGS <inlining>on : -qinline ;
+#flags vacpp CFLAGS <inlining>full : -qinline ;
+flags vacpp CFLAGS <inlining>full : ;
+
+# Exception handling
+flags vacpp C++FLAGS <exception-handling>off : -qnoeh ;
+flags vacpp C++FLAGS <exception-handling>on : -qeh ;
+
+# Run-time Type Identification
+flags vacpp C++FLAGS <rtti>off : -qnortti ;
+flags vacpp C++FLAGS <rtti>on : -qrtti ;
+
+# Enable 64-bit memory addressing model
+flags vacpp CFLAGS <address-model>64 : -q64 ;
+flags vacpp LINKFLAGS <address-model>64 : -q64 ;
+flags vacpp ARFLAGS <target-os>aix/<address-model>64 : -X 64 ;
+
+# Use absolute path when generating debug information
+flags vacpp CFLAGS <debug-symbols>on : -g -qfullpath ;
+flags vacpp LINKFLAGS <debug-symbols>on : -g -qfullpath ;
+flags vacpp LINKFLAGS <debug-symbols>off : -s ;
+
+if [ os.name ] = AIX
+{
+    flags vacpp.compile C++FLAGS : -qfuncsect ;
+
+    # The -bnoipath strips the prepending (relative) path of libraries from
+    # the loader section in the target library or executable. Hence, during
+    # load-time LIBPATH (identical to LD_LIBRARY_PATH) or a hard-coded
+    # -blibpath (*similar* to -lrpath/-lrpath-link) is searched. Without
+    # this option, the prepending (relative) path + library name is
+    # hard-coded in the loader section, causing *only* this path to be
+    # searched during load-time. Note that the AIX linker does not have an
+    # -soname equivalent, this is as close as it gets.
+    #
+    # The above options are definately for AIX 5.x, and most likely also for
+    # AIX 4.x and AIX 6.x. For details about the AIX linker see:
+    # http://download.boulder.ibm.com/ibmdl/pub/software/dw/aix/es-aix_ll.pdf
+    #
+    flags vacpp.link LINKFLAGS <link>shared : -bnoipath ;
+
+    # Run-time linking
+    flags vacpp.link EXE-LINKFLAGS <link>shared : -brtl ;
+}
+else
+{
+    # Linux PPC
+    flags vacpp.compile CFLAGS <link>shared : -qpic=large ;
+    flags vacpp FINDLIBS : rt ;
+}
+
+# Profiling
+flags vacpp CFLAGS <profiling>on : -pg ;
+flags vacpp LINKFLAGS <profiling>on : -pg ;
+
+flags vacpp.compile OPTIONS <cflags> ;
+flags vacpp.compile.c++ OPTIONS <cxxflags> ;
+flags vacpp DEFINES <define> ;
+flags vacpp UNDEFS <undef> ;
+flags vacpp HDRS <include> ;
+flags vacpp STDHDRS <sysinclude> ;
+flags vacpp.link OPTIONS <linkflags> ;
+flags vacpp ARFLAGS <arflags> ;
+
+flags vacpp LIBPATH <library-path> ;
+flags vacpp NEEDLIBS <library-file> ;
+flags vacpp FINDLIBS <find-shared-library> ;
+flags vacpp FINDLIBS <find-static-library> ;
+
+# Select the compiler name according to the threading model.
+flags vacpp VA_C_COMPILER  <threading>single : xlc   ;
+flags vacpp VA_C_COMPILER  <threading>multi : xlc_r ;
+flags vacpp VA_CXX_COMPILER <threading>single : xlC   ;
+flags vacpp VA_CXX_COMPILER <threading>multi : xlC_r ;
+
+SPACE = " " ;
+
+flags vacpp.link.dll HAVE_SONAME <target-os>linux : "" ;
+
+actions vacpp.link bind NEEDLIBS
+{
+    $(VA_CXX_COMPILER) $(EXE-LINKFLAGS) $(LINKFLAGS) -o "$(<[1])" -L$(LIBPATH) -L$(STDLIBPATH) "$(>)" "$(NEEDLIBS)" "$(NEEDLIBS)" -l$(FINDLIBS) $(OPTIONS) $(USER_OPTIONS)
+}
+
+actions vacpp.link.dll bind NEEDLIBS
+{
+    xlC_r -G $(LINKFLAGS) -o "$(<[1])" $(HAVE_SONAME)-Wl,-soname$(SPACE)-Wl,$(<[-1]:D=) -L$(LIBPATH) -L$(STDLIBPATH) "$(>)" "$(NEEDLIBS)" "$(NEEDLIBS)" -l$(FINDLIBS) $(OPTIONS) $(USER_OPTIONS) 
+}
+
+actions vacpp.compile.c
+{
+    $(VA_C_COMPILER) -c $(OPTIONS) $(USER_OPTIONS) -I$(BOOST_ROOT) -U$(UNDEFS) -D$(DEFINES) $(CFLAGS) -I"$(HDRS)" -I"$(STDHDRS)" -o "$(<)" "$(>)"
+}
+
+actions vacpp.compile.c++
+{
+    $(VA_CXX_COMPILER) -c $(OPTIONS) $(USER_OPTIONS) -I$(BOOST_ROOT) -U$(UNDEFS) -D$(DEFINES) $(CFLAGS) $(C++FLAGS) -I"$(HDRS)" -I"$(STDHDRS)" -o "$(<)" "$(>)"
+}
+
+actions updated together piecemeal vacpp.archive
+{
+    ar $(ARFLAGS) ru "$(<)" "$(>)"
+}
diff --git a/jam-files/boost-build/tools/whale.jam b/jam-files/boost-build/tools/whale.jam
new file mode 100644
index 00000000..9335ff0c
--- /dev/null
+++ b/jam-files/boost-build/tools/whale.jam
@@ -0,0 +1,116 @@
+#  Copyright (C) Vladimir Prus 2002-2005. 
+
+#  Use, modification and distribution is subject to the Boost Software
+#  License Version 1.0. (See accompanying file LICENSE_1_0.txt or
+#  http://www.boost.org/LICENSE_1_0.txt)
+
+#  This module implements support for Whale/Dolphin/WD parser/lexer tools. 
+#  See http://www.cs.queensu.ca/home/okhotin/whale/ for details.
+#
+#  There are three interesting target types:
+#  - WHL (the parser sources), that are converted to CPP and H
+#  - DLP (the lexer sources), that are converted to CPP and H
+#  - WD (combined parser/lexer sources), that are converted to WHL + DLP
+
+import type ;
+import generators ;
+import path ;
+import "class" : new ;
+import errors ;
+
+rule init ( path # path the Whale/Dolphin/WD binaries 
+          )
+{
+    if $(.configured) && $(.path) != $(path)
+    {
+        errors.user-error "Attempt to reconfigure Whale support" :
+          "Previously configured with path \"$(.path:E=<empty>)\"" :
+          "Now configuring with path \"$(path:E=<empty>)\"" ;
+
+    }
+    .configured = true ;
+    .path = $(path) ;
+
+    .whale = [ path.join $(path) whale ] ;
+    .dolphin = [ path.join $(path) dolphin ] ;
+    .wd = [ path.join $(path) wd ] ;
+}     
+
+
+# Declare the types.
+type.register WHL : whl ;
+type.register DLP : dlp ;
+type.register WHL_LR0 : lr0 ;
+type.register WD : wd ;
+
+# Declare standard generators.
+generators.register-standard whale.whale : WHL : CPP H H(%_symbols) ;
+generators.register-standard whale.dolphin : DLP : CPP H ;
+generators.register-standard whale.wd : WD : WHL(%_parser) DLP(%_lexer) ;
+
+# The conversions defines above a ambiguious when we generated CPP from WD.
+# We can either go via WHL type, or via DLP type.
+# The following custom generator handles this by running both conversions.
+
+class wd-to-cpp : generator
+{
+    rule __init__ ( * : * : * )
+    {
+        generator.__init__ $(1) : $(2) : $(3) ;
+    }
+    
+    rule run ( project name ? : property-set : source * )
+    {
+        if ! $(source[2])
+        {                
+            local new-sources ;
+            if ! [ $(source).type ] in WHL DLP
+            {            
+                local r1 = [ generators.construct $(project) $(name) 
+                  : WHL : $(property-set) : $(source) ] ;
+                local r2 = [ generators.construct $(project) $(name) 
+                  : DLP : $(property-set) : $(source) ] ;
+                
+                new-sources = [ sequence.unique $(r1[2-]) $(r2[2-]) ] ;
+            }
+            else
+            {
+                new-sources = $(source) ;
+            }
+            
+            local result ;
+            for local i in $(new-sources) 
+            {
+                local t = [ generators.construct $(project) $(name) : CPP 
+                  : $(property-set) : $(i) ] ;          
+                result += $(t[2-]) ;
+            }
+            return $(result) ;
+        }        
+    }
+    
+}
+
+
+generators.override whale.wd-to-cpp : whale.whale ;
+generators.override whale.wd-to-cpp : whale.dolphin ;
+
+
+generators.register [ new wd-to-cpp whale.wd-to-cpp : : CPP ] ;
+
+
+actions whale 
+{
+    $(.whale) -d $(<[1]:D) $(>)      
+}
+
+actions dolphin
+{    
+    $(.dolphin) -d $(<[1]:D) $(>)
+}
+
+actions wd
+{    
+    $(.wd) -d $(<[1]:D) -g $(>)
+}
+
diff --git a/jam-files/boost-build/tools/xlf.jam b/jam-files/boost-build/tools/xlf.jam
new file mode 100644
index 00000000..e7fcc608
--- /dev/null
+++ b/jam-files/boost-build/tools/xlf.jam
@@ -0,0 +1,39 @@
+# Copyright (C) 2004 Toon Knapen
+#
+#  Use, modification and distribution is subject to the Boost Software
+#  License Version 1.0. (See accompanying file LICENSE_1_0.txt or
+#  http://www.boost.org/LICENSE_1_0.txt)
+
+#
+# toolset configuration for the IBM Fortran compiler (xlf)
+# 
+
+import toolset : flags ;
+import feature ;
+import fortran ;
+
+rule init ( version ? : command * : options * )
+{
+}
+
+# Declare flags and action for compilation
+flags xlf OPTIONS <optimization>off : -O0 ;
+flags xlf OPTIONS <optimization>speed : -O3 ;
+flags xlf OPTIONS <optimization>space : -Os ;
+
+flags xlf OPTIONS <debug-symbols>on : -g ;
+flags xlf OPTIONS <profiling>on : -pg ;
+
+flags xlf DEFINES <define> ;
+flags xlf INCLUDES <include> ;
+
+rule compile-fortran
+{
+}
+
+actions compile-fortran
+{
+  xlf $(OPTIONS) -I$(INCLUDES) -c -o "$(<)" "$(>)" 
+}
+
+generators.register-fortran-compiler xlf.compile-fortran : FORTRAN : OBJ ; 
diff --git a/jam-files/boost-build/tools/xsltproc-config.jam b/jam-files/boost-build/tools/xsltproc-config.jam
new file mode 100644
index 00000000..de54a2eb
--- /dev/null
+++ b/jam-files/boost-build/tools/xsltproc-config.jam
@@ -0,0 +1,37 @@
+#~ Copyright 2005 Rene Rivera.
+#~ Distributed under the Boost Software License, Version 1.0.
+#~ (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+# Automatic configuration for Python tools and librries. To use, just import this module.
+
+import os ;
+import toolset : using ;
+
+if [ os.name ] = NT
+{
+    local xsltproc-path = [ GLOB [ modules.peek : PATH ] "C:\\Boost\\bin" : xsltproc\.exe ] ;
+    xsltproc-path = $(xsltproc-path[1]) ;
+    
+    if $(xsltproc-path)
+    {
+        if --debug-configuration in [ modules.peek : ARGV ]
+        {
+            ECHO "notice:" using xsltproc ":" $(xsltproc-path) ;
+        }
+        using xsltproc : $(xsltproc-path) ;
+    }
+}
+else
+{
+    local xsltproc-path = [ GLOB [ modules.peek : PATH ] : xsltproc ] ;
+    xsltproc-path = $(xsltproc-path[1]) ;
+    
+    if $(xsltproc-path)
+    {
+        if --debug-configuration in [ modules.peek : ARGV ]
+        {
+            ECHO "notice:" using xsltproc ":" $(xsltproc-path) ;
+        }
+        using xsltproc : $(xsltproc-path) ;
+    }
+}
diff --git a/jam-files/boost-build/tools/xsltproc.jam b/jam-files/boost-build/tools/xsltproc.jam
new file mode 100644
index 00000000..96f5170b
--- /dev/null
+++ b/jam-files/boost-build/tools/xsltproc.jam
@@ -0,0 +1,194 @@
+# Copyright (C) 2003 Doug Gregor. Permission to copy, use, modify, sell and
+# distribute this software is granted provided this copyright notice appears in
+# all copies. This software is provided "as is" without express or implied
+# warranty, and with no claim as to its suitability for any purpose.
+
+# This module defines rules to apply an XSLT stylesheet to an XML file using the
+# xsltproc driver, part of libxslt.
+#
+# Note: except for 'init', this modules does not provide any rules for end
+# users.
+
+import feature ;
+import regex ;
+import sequence ;
+import common ;
+import os ;
+import modules ;
+import path ;
+import errors ;
+
+feature.feature xsl:param : : free ;
+feature.feature xsl:path : : free ;
+feature.feature catalog : : free ;
+
+
+# Initialize xsltproc support. The parameters are:
+#   xsltproc: The xsltproc executable
+#
+rule init ( xsltproc ? )
+{
+    if $(xsltproc)
+    {
+        modify-config ;
+        .xsltproc = $(xsltproc) ;
+        check-xsltproc ;
+    }
+}
+
+rule freeze-config ( )
+{
+    if ! $(.config-frozen)
+    {
+        .config-frozen = true ;
+        .xsltproc ?= [ modules.peek : XSLTPROC ] ;
+        .xsltproc ?= xsltproc ;
+        check-xsltproc ;
+        .is-cygwin = [ .is-cygwin $(.xsltproc) ] ;
+    }
+}
+
+rule modify-config
+{
+    if $(.config-frozen)
+    {
+        errors.user-error "xsltproc: Cannot change xsltproc command after it has been used." ;
+    }
+}
+
+rule check-xsltproc ( )
+{
+    if $(.xsltproc)
+    {
+        local status = [ SHELL "\"$(.xsltproc)\" -V" : no-output : exit-status ] ;
+        if $(status[2]) != "0"
+        {
+            errors.user-error "xsltproc: Could not run \"$(.xsltproc)\" -V." ;
+        }
+    }
+}
+
+# Returns a non-empty string if a cygwin xsltproc binary was specified.
+rule is-cygwin ( )
+{
+    freeze-config ;
+    return $(.is-cygwin) ;
+}
+
+rule .is-cygwin ( xsltproc )
+{
+    if [ os.on-windows ]
+    {
+        local file = [ path.make [ modules.binding $(__name__) ] ] ;
+        local dir = [ path.native
+                      [ path.join [ path.parent $(file) ] xsltproc ] ] ;
+        if [ os.name ] = CYGWIN
+        {
+            dir = $(dir:W) ;
+        }
+        local command =
+            "\"$(xsltproc)\" \"$(dir)\\test.xsl\" \"$(dir)\\test.xml\" 2>&1" ;
+        local status = [ SHELL $(command) : no-output : exit-status ] ;
+        if $(status[2]) != "0"
+        {
+            return true ;
+        }
+    }
+}
+
+rule compute-xslt-flags ( target : properties * )
+{
+    local flags ;
+
+    # Raw flags.
+    flags += [ feature.get-values <flags> : $(properties) ] ;
+
+    # Translate <xsl:param> into command line flags.
+    for local param in [ feature.get-values <xsl:param> : $(properties) ]
+    {
+        local namevalue = [ regex.split $(param) "=" ] ;
+        flags += --stringparam $(namevalue[1]) \"$(namevalue[2])\" ;
+    }
+
+    # Translate <xsl:path>.
+    for local path in [ feature.get-values <xsl:path> : $(properties) ]
+    {
+        flags += --path \"$(path:G=)\" ;
+    }
+
+    # Take care of implicit dependencies.
+    local other-deps ;
+    for local dep in [ feature.get-values <implicit-dependency> : $(properties) ]
+    {
+        other-deps += [ $(dep:G=).creating-subvariant ] ;
+    }
+
+    local implicit-target-directories ;
+    for local dep in [ sequence.unique $(other-deps) ]
+    {
+        implicit-target-directories += [ $(dep).all-target-directories ] ;
+    }
+
+    for local dir in $(implicit-target-directories)
+    {
+        flags += --path \"$(dir:T)\" ;
+    }
+
+    return $(flags) ;
+}
+
+
+local rule .xsltproc ( target : source stylesheet : properties * : dirname ? : action )
+{
+    freeze-config ;
+    STYLESHEET on $(target) = $(stylesheet) ;
+    FLAGS on $(target) += [ compute-xslt-flags $(target) : $(properties) ] ;
+    NAME on $(target) = $(.xsltproc) ;
+
+    for local catalog in [ feature.get-values <catalog> : $(properties) ]
+    {
+        CATALOG = [ common.variable-setting-command XML_CATALOG_FILES : $(catalog:T) ] ;
+    }
+
+    if [ os.on-windows ] && ! [ is-cygwin ]
+    {
+        action = $(action).windows ;
+    }
+
+    $(action) $(target) : $(source) ;
+}
+
+
+rule xslt ( target : source stylesheet : properties * )
+{
+    return [ .xsltproc $(target) : $(source) $(stylesheet) : $(properties) : : xslt-xsltproc ] ;
+}
+
+
+rule xslt-dir ( target : source stylesheet : properties * : dirname )
+{
+    return [ .xsltproc $(target) : $(source) $(stylesheet) : $(properties) : $(dirname) : xslt-xsltproc-dir ] ;
+}
+
+actions xslt-xsltproc.windows
+{
+    $(CATALOG) "$(NAME:E=xsltproc)" $(FLAGS) --xinclude -o "$(<)" "$(STYLESHEET:W)" "$(>:W)"
+}
+
+
+actions xslt-xsltproc bind STYLESHEET
+{
+    $(CATALOG) "$(NAME:E=xsltproc)" $(FLAGS) --xinclude -o "$(<)" "$(STYLESHEET:T)" "$(>:T)"
+}
+
+
+actions xslt-xsltproc-dir.windows bind STYLESHEET
+{
+    $(CATALOG) "$(NAME:E=xsltproc)" $(FLAGS) --xinclude -o "$(<:D)/" "$(STYLESHEET:W)" "$(>:W)"
+}
+
+
+actions xslt-xsltproc-dir bind STYLESHEET
+{
+    $(CATALOG) "$(NAME:E=xsltproc)" $(FLAGS) --xinclude -o "$(<:D)/" "$(STYLESHEET:T)" "$(>:T)"
+}
diff --git a/jam-files/boost-build/tools/xsltproc/included.xsl b/jam-files/boost-build/tools/xsltproc/included.xsl
new file mode 100644
index 00000000..ef86394a
--- /dev/null
+++ b/jam-files/boost-build/tools/xsltproc/included.xsl
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+   Copyright (c) 2010 Steven Watanabe
+  
+   Distributed under the Boost Software License, Version 1.0.
+   (See accompanying file LICENSE_1_0.txt or copy at
+   http://www.boost.org/LICENSE_1_0.txt)
+  -->
+<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+                version="1.0">
+</xsl:stylesheet>
diff --git a/jam-files/boost-build/tools/xsltproc/test.xml b/jam-files/boost-build/tools/xsltproc/test.xml
new file mode 100644
index 00000000..57c8ba18
--- /dev/null
+++ b/jam-files/boost-build/tools/xsltproc/test.xml
@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root/>
diff --git a/jam-files/boost-build/tools/xsltproc/test.xsl b/jam-files/boost-build/tools/xsltproc/test.xsl
new file mode 100644
index 00000000..a142c91d
--- /dev/null
+++ b/jam-files/boost-build/tools/xsltproc/test.xsl
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+   Copyright (c) 2010 Steven Watanabe
+  
+   Distributed under the Boost Software License, Version 1.0.
+   (See accompanying file LICENSE_1_0.txt or copy at
+   http://www.boost.org/LICENSE_1_0.txt)
+  -->
+<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+                version="1.0">
+  <xsl:include href="included.xsl"/>
+</xsl:stylesheet>
diff --git a/jam-files/boost-build/tools/zlib.jam b/jam-files/boost-build/tools/zlib.jam
new file mode 100644
index 00000000..f9138fd5
--- /dev/null
+++ b/jam-files/boost-build/tools/zlib.jam
@@ -0,0 +1,92 @@
+# Copyright (c) 2010 Vladimir Prus.
+#
+# Use, modification and distribution is subject to the Boost Software
+# License Version 1.0. (See accompanying file LICENSE_1_0.txt or
+# http://www.boost.org/LICENSE_1_0.txt)
+
+# Supports the zlib library
+#
+# After 'using zlib', the following targets are available:
+#
+# /zlib//zlib -- The zlib library
+
+
+# In addition to direct purpose of supporting zlib, this module also
+# serves as canonical example of how third-party condiguration works
+# in Boost.Build. The operation is as follows
+#
+# - For each 'using zlib : condition ... : ...' we create a target alternative
+#   for zlib, with the specified condition.
+# - There's one target alternative for 'zlib' with no specific condition
+#   properties. 
+#
+# Two invocations of 'using zlib' with the same condition but different
+# properties are not permitted, e.g.:
+#
+#   using zlib : condition <target-os>windows : include foo ;
+#   using zlib : condition <target-os>windows : include bar ;
+#
+# is in error. One exception is for empty condition, 'using' without any
+# parameters is overridable. That is:
+#
+#   using zlib ;
+#   using zlib : include foo ;
+# 
+# Is OK then the first 'using' is ignored. Likewise if the order of the statements
+# is reversed.
+#
+# When 'zlib' target is built, a target alternative is selected as usual for
+# Boost.Build. The selected alternative is a custom target class, which:
+#
+# - calls ac.find-include-path to find header path. If explicit path is provided
+#   in 'using', only that path is checked, and if no header is found there, error
+#   is emitted. Otherwise, we check a directory specified using ZLIB_INCLUDE
+#   environment variable, and failing that, in standard directories.
+#   [TODO: document sysroot handling]
+# - calls ac.find-library to find the library, in an identical fashion.
+#
+
+import project ;
+import ac ;
+import errors ;
+import "class" : new ;
+import targets ; 
+
+project.initialize $(__name__) ;
+project = [ project.current ] ;
+project zlib ;
+
+header = zlib.h ;
+names = z zlib zll zdll ;
+
+.default-alternative = [ new ac-library zlib : $(project) ] ;
+$(.default-alternative).set-header $(header) ;
+$(.default-alternative).set-default-names $(names) ;
+targets.main-target-alternative $(.default-alternative) ;
+
+rule init ( * : * )
+{
+    if ! $(condition)
+    {
+        # Special case the no-condition case so that 'using' without parameters
+        # can mix with more specific 'using'.
+        $(.default-alternative).reconfigure $(1) : $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ;
+    }
+    else                    
+    {
+        # FIXME: consider if we should allow overriding definitions for a given
+        # condition -- e.g. project-config.jam might want to override whatever is
+        # in user-config.jam. 
+        local mt = [ new ac-library zlib : $(project)
+          : $(1) : $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ] ;
+        $(mt).set-header $(header) ;
+        $(mt).set-default-names $(names) ;
+        targets.main-target-alternative $(mt) ;
+    }    
+}
+
+
+
+
+
+
diff --git a/jam-files/boost-build/user-config.jam b/jam-files/boost-build/user-config.jam
new file mode 100644
index 00000000..fbbf13fd
--- /dev/null
+++ b/jam-files/boost-build/user-config.jam
@@ -0,0 +1,92 @@
+# Copyright 2003, 2005 Douglas Gregor
+# Copyright 2004 John Maddock
+# Copyright 2002, 2003, 2004, 2007 Vladimir Prus
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+#   This file is used to configure your Boost.Build installation. You can modify
+# this file in place, or you can place it in a permanent location so that it
+# does not get overwritten should you get a new version of Boost.Build. See:
+#
+#   http://www.boost.org/boost-build2/doc/html/bbv2/overview/configuration.html
+#
+# for documentation about possible permanent locations.
+
+#   This file specifies which toolsets (C++ compilers), libraries, and other
+# tools are available. Often, you should be able to just uncomment existing
+# example lines and adjust them to taste. The complete list of supported tools,
+# and configuration instructions can be found at:
+#
+#   http://boost.org/boost-build2/doc/html/bbv2/reference/tools.html
+#
+
+#   This file uses Jam language syntax to describe available tools. Mostly,
+# there are 'using' lines, that contain the name of the used tools, and
+# parameters to pass to those tools -- where paremeters are separated by
+# semicolons. Important syntax notes:
+#
+#   - Both ':' and ';' must be separated from other tokens by whitespace
+#   - The '\' symbol is a quote character, so when specifying Windows paths you
+#     should use '/' or '\\' instead.
+#
+# More details about the syntax can be found at:
+#
+#   http://boost.org/boost-build2/doc/html/bbv2/advanced.html#bbv2.advanced.jam_language
+#
+
+# ------------------
+# GCC configuration.
+# ------------------
+
+# Configure gcc (default version).
+# using gcc ;
+
+# Configure specific gcc version, giving alternative name to use.
+# using gcc : 3.2 : g++-3.2 ;
+
+
+# -------------------
+# MSVC configuration.
+# -------------------
+
+# Configure msvc (default version, searched for in standard locations and PATH).
+# using msvc ;
+
+# Configure specific msvc version (searched for in standard locations and PATH).
+# using msvc : 8.0 ;
+
+
+# ----------------------
+# Borland configuration.
+# ----------------------
+# using borland ;
+
+
+# ----------------------
+# STLPort configuration.
+# ----------------------
+
+#   Configure specifying location of STLPort headers. Libraries must be either
+# not needed or available to the compiler by default.
+# using stlport : : /usr/include/stlport ;
+
+# Configure specifying location of both headers and libraries explicitly.
+# using stlport : : /usr/include/stlport /usr/lib ;
+
+
+# -----------------
+# QT configuration.
+# -----------------
+
+# Configure assuming QTDIR gives the installation prefix.
+# using qt ;
+
+# Configure with an explicit installation prefix.
+# using qt : /usr/opt/qt ;
+
+# ---------------------
+# Python configuration.
+# ---------------------
+
+# Configure specific Python version.
+# using python : 3.1 : /usr/bin/python3 : /usr/include/python3.1 : /usr/lib ;
diff --git a/jam-files/boost-build/util/__init__.py b/jam-files/boost-build/util/__init__.py
new file mode 100644
index 00000000..f80fe70e
--- /dev/null
+++ b/jam-files/boost-build/util/__init__.py
@@ -0,0 +1,136 @@
+
+import bjam
+import re
+import types
+
+# Decorator the specifies bjam-side prototype for a Python function
+def bjam_signature(s):
+
+    def wrap(f):       
+        f.bjam_signature = s
+        return f
+
+    return wrap
+
+def metatarget(f):
+
+    f.bjam_signature = (["name"], ["sources", "*"], ["requirements", "*"],
+                        ["default_build", "*"], ["usage_requirements", "*"])
+    return f
+
+class cached(object):
+
+    def __init__(self, function):
+        self.function = function
+        self.cache = {}
+
+    def __call__(self, *args):
+        try:
+            return self.cache[args]
+        except KeyError:
+            v = self.function(*args)
+            self.cache[args] = v
+            return v
+
+    def __get__(self, instance, type):
+        return types.MethodType(self, instance, type)
+
+def unquote(s):
+    if s and s[0] == '"' and s[-1] == '"':
+        return s[1:-1]
+    else:
+        return s
+
+_extract_jamfile_and_rule = re.compile("(Jamfile<.*>)%(.*)")
+
+def qualify_jam_action(action_name, context_module):
+
+    if action_name.startswith("###"):
+        # Callable exported from Python. Don't touch
+        return action_name
+    elif _extract_jamfile_and_rule.match(action_name):
+        # Rule is already in indirect format
+        return action_name
+    else:
+        ix = action_name.find('.')
+        if ix != -1 and action_name[:ix] == context_module:
+            return context_module + '%' + action_name[ix+1:]
+        
+        return context_module + '%' + action_name        
+    
+
+def set_jam_action(name, *args):
+
+    m = _extract_jamfile_and_rule.match(name)
+    if m:
+        args = ("set-update-action-in-module", m.group(1), m.group(2)) + args
+    else:
+        args = ("set-update-action", name) + args
+
+    return bjam.call(*args)
+
+
+def call_jam_function(name, *args):
+
+    m = _extract_jamfile_and_rule.match(name)
+    if m:
+        args = ("call-in-module", m.group(1), m.group(2)) + args
+        return bjam.call(*args)
+    else:
+        return bjam.call(*((name,) + args))
+
+__value_id = 0
+__python_to_jam = {}
+__jam_to_python = {}
+
+def value_to_jam(value, methods=False):
+    """Makes a token to refer to a Python value inside Jam language code.
+
+    The token is merely a string that can be passed around in Jam code and
+    eventually passed back. For example, we might want to pass PropertySet
+    instance to a tag function and it might eventually call back
+    to virtual_target.add_suffix_and_prefix, passing the same instance.
+
+    For values that are classes, we'll also make class methods callable
+    from Jam.
+
+    Note that this is necessary to make a bit more of existing Jamfiles work.
+    This trick should not be used to much, or else the performance benefits of
+    Python port will be eaten.
+    """
+
+    global __value_id
+
+    r = __python_to_jam.get(value, None)
+    if r:
+        return r
+
+    exported_name = '###_' + str(__value_id)
+    __value_id = __value_id + 1
+    __python_to_jam[value] = exported_name
+    __jam_to_python[exported_name] = value
+
+    if methods and type(value) == types.InstanceType:
+        for field_name in dir(value):
+            field = getattr(value, field_name)
+            if callable(field) and not field_name.startswith("__"):
+                bjam.import_rule("", exported_name + "." + field_name, field)
+
+    return exported_name
+
+def record_jam_to_value_mapping(jam_value, python_value):
+    __jam_to_python[jam_value] = python_value
+
+def jam_to_value_maybe(jam_value):
+
+    if type(jam_value) == type(""):
+        return __jam_to_python.get(jam_value, jam_value)
+    else:
+        return jam_value
+
+def stem(filename):
+    i = filename.find('.')
+    if i != -1:
+        return filename[0:i]
+    else:
+        return filename
diff --git a/jam-files/boost-build/util/assert.jam b/jam-files/boost-build/util/assert.jam
new file mode 100644
index 00000000..abedad52
--- /dev/null
+++ b/jam-files/boost-build/util/assert.jam
@@ -0,0 +1,336 @@
+# Copyright 2001, 2002, 2003 Dave Abrahams
+# Copyright 2006 Rene Rivera
+# Copyright 2002, 2003 Vladimir Prus
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+import errors ;
+import modules ;
+
+
+################################################################################
+#
+# Private implementation details.
+#
+################################################################################
+
+# Rule added as a replacement for the regular Jam = operator but which does not
+# ignore trailing empty string elements.
+#
+local rule exact-equal-test ( lhs * : rhs * )
+{
+    local lhs_extended = $(lhs) xxx ;
+    local rhs_extended = $(rhs) xxx ;
+    if $(lhs_extended) = $(rhs_extended)
+    {
+        return true ;
+    }
+}
+
+
+# Two lists are considered set-equal if they contain the same elements, ignoring
+# duplicates and ordering.
+#
+local rule set-equal-test ( set1 * : set2 * )
+{
+    if ( $(set1) in $(set2) ) && ( $(set2) in $(set1) )
+    {
+        return true ;
+    }
+}
+
+
+################################################################################
+#
+# Public interface.
+#
+################################################################################
+
+# Assert the equality of A and B, ignoring trailing empty string elements.
+#
+rule equal ( a * : b * )
+{
+    if $(a) != $(b)
+    {
+        errors.error-skip-frames 3 assertion failure: \"$(a)\" "==" \"$(b)\"
+            (ignoring trailing empty strings) ;
+    }
+}
+
+
+# Assert that the result of calling RULE-NAME on the given arguments has a false
+# logical value (is either an empty list or all empty strings).
+#
+rule false ( rule-name args * : * )
+{
+    local result ;
+    module [ CALLER_MODULE ]
+    {
+        modules.poke assert : result : [ $(1) : $(2) : $(3) : $(4) : $(5) : $(6)
+            : $(7) : $(8) : $(9) ] ;
+    }
+
+    if $(result)
+    {
+        errors.error-skip-frames 3 assertion failure: Expected false result from
+            "[" $(rule-name) [ errors.lol->list $(args) : $(2) : $(3) : $(4) :
+            $(5) : $(6) : $(7) : $(8) : $(9) ] "]" : Got: "[" \"$(result)\" "]" ;
+    }
+}
+
+
+# Assert that ELEMENT is present in LIST.
+#
+rule "in" ( element : list * )
+{
+    if ! $(element) in $(list)
+    {
+        errors.error-skip-frames 3 assertion failure: Expected \"$(element)\" in
+            "[" \"$(list)\" "]" ;
+    }
+}
+
+
+# Assert the inequality of A and B, ignoring trailing empty string elements.
+#
+rule not-equal ( a * : b * )
+{
+    if $(a) = $(b)
+    {
+        errors.error-skip-frames 3 assertion failure: \"$(a)\" "!=" \"$(b)\"
+            (ignoring trailing empty strings) ;
+    }
+}
+
+
+# Assert that ELEMENT is not present in LIST.
+#
+rule not-in ( element : list * )
+{
+    if $(element) in $(list)
+    {
+        errors.error-skip-frames 3 assertion failure: Did not expect
+            \"$(element)\" in "[" \"$(list)\" "]" ;
+    }
+}
+
+
+# Assert the inequality of A and B as sets.
+#
+rule not-set-equal ( a * : b * )
+{
+    if [ set-equal-test $(a) : $(b) ]
+    {
+        errors.error-skip-frames 3 assertion failure: Expected "[" \"$(a)\" "]"
+            and "[" \"$(b)\" "]" to not be equal as sets ;
+    }
+}
+
+
+# Assert that A and B are not exactly equal, not ignoring trailing empty string
+# elements.
+#
+rule not-exact-equal ( a * : b * )
+{
+    if [ exact-equal-test $(a) : $(b) ]
+    {
+        errors.error-skip-frames 3 assertion failure: \"$(a)\" "!=" \"$(b)\" ;
+    }
+}
+
+
+# Assert that EXPECTED is the result of calling RULE-NAME with the given
+# arguments.
+#
+rule result ( expected * : rule-name args * : * )
+{
+    local result ;
+    module [ CALLER_MODULE ]
+    {
+        modules.poke assert : result : [ $(2) : $(3) : $(4) : $(5) : $(6) : $(7)
+            : $(8) : $(9) ] ;
+    }
+
+    if ! [ exact-equal-test $(result) : $(expected) ]
+    {
+        errors.error-skip-frames 3 assertion failure: "[" $(rule-name) [
+            errors.lol->list $(args) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) :
+            $(9) ] "]" : Expected: "[" \"$(expected)\" "]" : Got: "["
+            \"$(result)\" "]" ;
+    }
+}
+
+
+# Assert that EXPECTED is set-equal (i.e. duplicates and ordering are ignored)
+# to the result of calling RULE-NAME with the given arguments. Note that rules
+# called this way may accept at most 8 parameters.
+#
+rule result-set-equal ( expected * : rule-name args * : * )
+{
+    local result ;
+    module [ CALLER_MODULE ]
+    {
+        modules.poke assert : result : [ $(2) : $(3) : $(4) : $(5) : $(6) : $(7)
+            : $(8) : $(9) ] ;
+    }
+
+    if ! [ set-equal-test $(result) : $(expected) ]
+    {
+        errors.error-skip-frames 3 assertion failure: "[" $(rule-name) [
+            errors.lol->list $(args) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) :
+            $(9) ] "]" : Expected: "[" \"$(expected)\" "]" : Got: "["
+            \"$(result)\" "]" ;
+    }
+}
+
+
+# Assert the equality of A and B as sets.
+#
+rule set-equal ( a * : b * )
+{
+    if ! [ set-equal-test $(a) : $(b) ]
+    {
+        errors.error-skip-frames 3 assertion failure: Expected "[" \"$(a)\" "]"
+            and "[" \"$(b)\" "]" to be equal as sets ;
+    }
+}
+
+
+# Assert that the result of calling RULE-NAME on the given arguments has a true
+# logical value (is neither an empty list nor all empty strings).
+#
+rule true ( rule-name args * : * )
+{
+    local result ;
+    module [ CALLER_MODULE ]
+    {
+        modules.poke assert : result : [ $(1) : $(2) : $(3) : $(4) : $(5) : $(6)
+            : $(7) : $(8) : $(9) ] ;
+    }
+
+    if ! $(result)
+    {
+        errors.error-skip-frames 3 assertion failure: Expected true result from
+            "[" $(rule-name) [ errors.lol->list $(args) : $(2) : $(3) : $(4) :
+            $(5) : $(6) : $(7) : $(8) : $(9) ] "]" ;
+    }
+}
+
+
+# Assert the exact equality of A and B, not ignoring trailing empty string
+# elements.
+#
+rule exact-equal ( a * : b * )
+{
+    if ! [ exact-equal-test $(a) : $(b) ]
+    {
+        errors.error-skip-frames 3 assertion failure: \"$(a)\" "==" \"$(b)\" ;
+    }
+}
+
+
+# Assert that the given variable is not an empty list.
+#
+rule variable-not-empty ( name )
+{
+    local value = [ modules.peek [ CALLER_MODULE ] : $(name) ] ;
+    if ! $(value)-is-not-empty
+    {
+        errors.error-skip-frames 3 assertion failure: Expected variable
+            \"$(name)\" not to be an empty list ;
+    }
+}
+
+
+rule __test__ ( )
+{
+    # Helper rule used to avoid test duplication related to different list
+    # equality test rules.
+    #
+    local rule run-equality-test ( equality-assert : ignore-trailing-empty-strings ? )
+    {
+        local not-equality-assert = not-$(equality-assert) ;
+
+        # When the given equality test is expected to ignore trailing empty
+        # strings some of the test results should be inverted.
+        local not-equality-assert-i = not-$(equality-assert) ;
+        if $(ignore-trailing-empty-strings)
+        {
+            not-equality-assert-i = $(equality-assert) ;
+        }
+
+            $(equality-assert)         :       ;
+            $(equality-assert)   "" "" : "" "" ;
+        $(not-equality-assert-i)       : "" "" ;
+            $(equality-assert)   x     : x     ;
+        $(not-equality-assert)         : x     ;
+        $(not-equality-assert)   ""    : x     ;
+        $(not-equality-assert)   "" "" : x     ;
+        $(not-equality-assert-i) x     : x ""  ;
+            $(equality-assert)   x ""  : x ""  ;
+        $(not-equality-assert)   x     : "" x  ;
+            $(equality-assert)   "" x  : "" x  ;
+
+            $(equality-assert) 1 2 3 : 1 2 3   ;
+        $(not-equality-assert) 1 2 3 : 3 2 1   ;
+        $(not-equality-assert) 1 2 3 : 1 5 3   ;
+        $(not-equality-assert) 1 2 3 : 1 "" 3  ;
+        $(not-equality-assert) 1 2 3 : 1 1 2 3 ;
+        $(not-equality-assert) 1 2 3 : 1 2 2 3 ;
+        $(not-equality-assert) 1 2 3 : 5 6 7   ;
+
+        # Extra variables used here just to make sure Boost Jam or Boost Build
+        # do not handle lists with empty strings differently depending on
+        # whether they are literals or stored in variables.
+
+        local empty           =         ;
+        local empty-strings   = "" ""   ;
+        local x-empty-strings = x "" "" ;
+        local empty-strings-x = "" "" x ;
+
+            $(equality-assert)                      : $(empty)           ;
+        $(not-equality-assert-i) ""                 : $(empty)           ;
+        $(not-equality-assert-i) "" ""              : $(empty)           ;
+        $(not-equality-assert-i)                    : $(empty-strings)   ;
+        $(not-equality-assert-i) ""                 : $(empty-strings)   ;
+            $(equality-assert)   "" ""              : $(empty-strings)   ;
+            $(equality-assert)   $(empty)           : $(empty)           ;
+            $(equality-assert)   $(empty-strings)   : $(empty-strings)   ;
+        $(not-equality-assert-i) $(empty)           : $(empty-strings)   ;
+            $(equality-assert)   $(x-empty-strings) : $(x-empty-strings) ;
+            $(equality-assert)   $(empty-strings-x) : $(empty-strings-x) ;
+        $(not-equality-assert)   $(empty-strings-x) : $(x-empty-strings) ;
+        $(not-equality-assert-i) x                  : $(x-empty-strings) ;
+        $(not-equality-assert)   x                  : $(empty-strings-x) ;
+        $(not-equality-assert-i) x                  : $(x-empty-strings) ;
+        $(not-equality-assert-i) x ""               : $(x-empty-strings) ;
+            $(equality-assert)   x "" ""            : $(x-empty-strings) ;
+        $(not-equality-assert)   x                  : $(empty-strings-x) ;
+        $(not-equality-assert)   "" x               : $(empty-strings-x) ;
+            $(equality-assert)   "" "" x            : $(empty-strings-x) ;
+    }                                    
+
+
+    # ---------------
+    # Equality tests.
+    # ---------------
+
+    run-equality-test equal : ignore-trailing-empty-strings ;
+    run-equality-test exact-equal ;
+
+
+    # -------------------------
+    # assert.set-equal() tests.
+    # -------------------------
+
+        set-equal         :         ;
+    not-set-equal "" ""   :         ;
+        set-equal "" ""   : ""      ;
+        set-equal "" ""   : "" ""   ;
+        set-equal a b c   : a b c   ;
+        set-equal a b c   : b c a   ;
+        set-equal a b c a : a b c   ;
+        set-equal a b c   : a b c a ;
+    not-set-equal a b c   : a b c d ;
+    not-set-equal a b c d : a b c   ;
+}
diff --git a/jam-files/boost-build/util/container.jam b/jam-files/boost-build/util/container.jam
new file mode 100644
index 00000000..dd496393
--- /dev/null
+++ b/jam-files/boost-build/util/container.jam
@@ -0,0 +1,339 @@
+# Copyright 2003 Dave Abrahams
+# Copyright 2002, 2003 Rene Rivera
+# Copyright 2002, 2003, 2004 Vladimir Prus
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+# Various container classes.
+
+# Base for container objects. This lets us construct recursive structures. That
+# is containers with containers in them, specifically so we can tell literal
+# values from node values.
+#
+class node
+{
+    rule __init__ (
+        value ?  # Optional value to set node to initially.
+    )
+    {
+        self.value = $(value) ;
+    }
+
+    # Set the value of this node, passing nothing will clear it.
+    #
+    rule set ( value * )
+    {
+        self.value = $(value) ;
+    }
+
+    # Get the value of this node.
+    #
+    rule get ( )
+    {
+        return $(self.value) ;
+    }
+}
+
+
+# A simple vector. Interface mimics the C++ std::vector and std::list, with the
+# exception that indices are one (1) based to follow Jam standard.
+#
+# TODO: Possibly add assertion checks.
+#
+class vector : node
+{
+    import numbers ;
+    import utility ;
+    import sequence ;
+
+    rule __init__ (
+        values *  # Initial contents of vector.
+    )
+    {
+        node.__init__ ;
+        self.value = $(values) ;
+    }
+
+    # Get the value of the first element.
+    #
+    rule front ( )
+    {
+        return $(self.value[1]) ;
+    }
+
+    # Get the value of the last element.
+    #
+    rule back ( )
+    {
+        return $(self.value[-1]) ;
+    }
+
+    # Get the value of the element at the given index, one based. Access to
+    # elements of recursive structures is supported directly. Specifying
+    # additional index values recursively accesses the elements as containers.
+    # For example: [ $(v).at 1 : 2 ] would retrieve the second element of our
+    # first element, assuming the first element is a container.
+    #
+    rule at (
+        index  # The element index, one based.
+        : *  # Additional indices to access recursively.
+    )
+    {
+        local r = $(self.value[$(index)]) ;
+        if $(2)
+        {
+            r = [ $(r).at $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ] ;
+        }
+        return $(r) ;
+    }
+
+    # Get the value contained in the given element. This has the same
+    # functionality and interface as "at" but in addition gets the value of the
+    # referenced element, assuming it is a "node".
+    #
+    rule get-at (
+        index  # The element index, one based.
+        : *  # Additional indices to access recursively.
+    )
+    {
+        local r = $(self.value[$(index)]) ;
+        if $(2)
+        {
+            r = [ $(r).at $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ] ;
+        }
+        return [ $(r).get ] ;
+    }
+
+    # Insert the given value into the front of the vector pushing the rest of
+    # the elements back.
+    #
+    rule push-front (
+        value  # Value to become first element.
+    )
+    {
+        self.value = $(value) $(self.value) ;
+    }
+
+    # Remove the front element from the vector. Does not return the value. No
+    # effect if vector is empty.
+    #
+    rule pop-front ( )
+    {
+        self.value = $(self.value[2-]) ;
+    }
+
+    # Add the given value at the end of the vector.
+    #
+    rule push-back (
+        value  # Value to become back element.
+    )
+    {
+        self.value += $(value) ;
+    }
+
+    # Remove the back element from the vector. Does not return the value. No
+    # effect if vector is empty.
+    #
+    rule pop-back ( )
+    {
+        self.value = $(self.value[1--2]) ;
+    }
+
+    # Insert the given value at the given index, one based. The values at and to
+    # the right of the index are pushed back to make room for the new value.
+    # If the index is passed the end of the vector the element is added to the
+    # end.
+    #
+    rule insert (
+        index  # The index to insert at, one based.
+        : value  # The value to insert.
+    )
+    {
+        local left = $(self.value[1-$(index)]) ;
+        local right = $(self.value[$(index)-]) ;
+        if $(right)-is-not-empty
+        {
+            left = $(left[1--2]) ;
+        }
+        self.value = $(left) $(value) $(right) ;
+    }
+
+    # Remove one or more elements from the vector. The range is inclusive, and
+    # not specifying an end is equivalent to the [start, start] range.
+    #
+    rule erase (
+        start  # Index of first element to remove.
+        end ?  # Optional, index of last element to remove.
+    )
+    {
+        end ?= $(start) ;
+        local left = $(self.value[1-$(start)]) ;
+        left = $(left[1--2]) ;
+        local right = $(self.value[$(end)-]) ;
+        right = $(right[2-]) ;
+        self.value = $(left) $(right) ;
+    }
+
+    # Remove all elements from the vector.
+    #
+    rule clear ( )
+    {
+        self.value = ;
+    }
+
+    # The number of elements in the vector.
+    #
+    rule size ( )
+    {
+        return [ sequence.length $(self.value) ] ;
+    }
+
+    # Returns "true" if there are NO elements in the vector, empty otherwise.
+    #
+    rule empty ( )
+    {
+        if ! $(self.value)-is-not-empty
+        {
+            return true ;
+        }
+    }
+
+    # Returns the textual representation of content.
+    #
+    rule str ( )
+    {
+        return "[" [ sequence.transform utility.str : $(self.value) ] "]" ;
+    }
+
+    # Sorts the vector inplace, calling 'utility.less' for comparisons.
+    #
+    rule sort ( )
+    {
+        self.value = [ sequence.insertion-sort $(self.value) : utility.less ] ;
+    }
+
+    # Returns true if content is equal to the content of other vector. Uses
+    # 'utility.equal' for comparison.
+    #
+    rule equal ( another )
+    {
+        local mismatch ;
+        local size = [ size ] ;
+        if $(size) = [ $(another).size ]
+        {
+            for local i in [ numbers.range 1 $(size) ]
+            {
+                if ! [ utility.equal [ at $(i) ] [ $(another).at $(i) ] ]
+                {
+                    mismatch = true ;
+                }
+            }
+        }
+        else
+        {
+            mismatch = true ;
+        }
+
+        if ! $(mismatch)
+        {
+            return true ;
+        }
+    }
+}
+
+
+rule __test__ ( )
+{
+    import assert ;
+    import "class" : new ;
+
+    local v1 = [ new vector ] ;
+    assert.true $(v1).equal $(v1) ;
+    assert.true $(v1).empty ;
+    assert.result 0 : $(v1).size ;
+    assert.result "[" "]" : $(v1).str ;
+    $(v1).push-back b ;
+    $(v1).push-front a ;
+    assert.result "[" a b "]" : $(v1).str ;
+    assert.result a : $(v1).front ;
+    assert.result b : $(v1).back ;
+    $(v1).insert 2 : d ;
+    $(v1).insert 2 : c ;
+    $(v1).insert 4 : f ;
+    $(v1).insert 4 : e ;
+    $(v1).pop-back ;
+    assert.result 5 : $(v1).size ;
+    assert.result d : $(v1).at 3 ;
+    $(v1).pop-front ;
+    assert.result c : $(v1).front ;
+    assert.false $(v1).empty ;
+    $(v1).erase 3 4 ;
+    assert.result 2 : $(v1).size ;
+
+    local v2 = [ new vector q w e r t y ] ;
+    assert.result 6 : $(v2).size ;
+    $(v1).push-back $(v2) ;
+    assert.result 3 : $(v1).size ;
+    local v2-alias = [ $(v1).back ] ;
+    assert.result e : $(v2-alias).at 3 ;
+    $(v1).clear ;
+    assert.true $(v1).empty ;
+    assert.false $(v2-alias).empty ;
+    $(v2).pop-back ;
+    assert.result t : $(v2-alias).back ;
+
+    local v3 = [ new vector ] ;
+    $(v3).push-back [ new vector 1 2 3 4 5 ] ;
+    $(v3).push-back [ new vector a b c ] ;
+    assert.result "[" "[" 1 2 3 4 5 "]" "[" a b c "]" "]" : $(v3).str ;
+    $(v3).push-back [ new vector [ new vector x y z ] [ new vector 7 8 9 ] ] ;
+    assert.result 1 : $(v3).at 1 : 1 ;
+    assert.result b : $(v3).at 2 : 2 ;
+    assert.result a b c : $(v3).get-at 2 ;
+    assert.result 7 8 9 : $(v3).get-at 3 : 2 ;
+
+    local v4 = [ new vector 4 3 6 ] ;
+    $(v4).sort ;
+    assert.result 3 4 6 : $(v4).get ;
+    assert.false $(v4).equal $(v3) ;
+
+    local v5 = [ new vector 3 4 6 ] ;
+    assert.true $(v4).equal $(v5) ;
+    # Check that vectors of different sizes are considered non-equal.
+    $(v5).pop-back ;
+    assert.false $(v4).equal $(v5) ;
+
+    local v6 = [ new vector [ new vector 1 2 3 ] ] ;
+    assert.true $(v6).equal [ new vector [ new vector 1 2 3 ] ] ;
+
+    local v7 = [ new vector 111 222 333 ] ;
+    assert.true $(v7).equal $(v7) ;
+    $(v7).insert 4 : 444 ;
+    assert.result 111 222 333 444 : $(v7).get ;
+    $(v7).insert 999 : xxx ;
+    assert.result 111 222 333 444 xxx : $(v7).get ;
+
+    local v8 = [ new vector "" "" "" ] ;
+    assert.true $(v8).equal $(v8) ;
+    assert.false $(v8).empty ;
+    assert.result 3  : $(v8).size ;
+    assert.result "" : $(v8).at 1 ;
+    assert.result "" : $(v8).at 2 ;
+    assert.result "" : $(v8).at 3 ;
+    assert.result    : $(v8).at 4 ;
+    $(v8).insert 2 : 222 ;
+    assert.result 4 : $(v8).size ;
+    assert.result "" 222 "" "" : $(v8).get ;
+    $(v8).insert 999 : "" ;
+    assert.result 5 : $(v8).size ;
+    assert.result "" 222 "" "" "" : $(v8).get ;
+    $(v8).insert 999 : xxx ;
+    assert.result 6 : $(v8).size ;
+    assert.result "" 222 "" "" "" xxx : $(v8).get ;
+
+    # Regression test for a bug causing vector.equal to compare only the first
+    # and the last element in the given vectors.
+    local v9 = [ new vector 111 xxx 222 ] ;
+    local v10 = [ new vector 111 yyy 222 ] ;
+    assert.false $(v9).equal $(v10) ;
+}
diff --git a/jam-files/boost-build/util/doc.jam b/jam-files/boost-build/util/doc.jam
new file mode 100644
index 00000000..a7515588
--- /dev/null
+++ b/jam-files/boost-build/util/doc.jam
@@ -0,0 +1,997 @@
+# Copyright 2002, 2005 Dave Abrahams
+# Copyright 2002, 2003, 2006 Rene Rivera
+# Copyright 2003 Vladimir Prus
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+# Documentation system, handles --help requests.
+# It defines rules that attach documentation to modules, rules, and variables.
+# Collects and generates documentation for the various parts of the build
+# system. The documentation is collected from comments integrated into the code.
+
+import modules ;
+import print ;
+import set ;
+import container ;
+import "class" ;
+import sequence ;
+import path ;
+
+
+# The type of output to generate.
+# "console" is formated text echoed to the console (the default);
+# "text" is formated text appended to the output file;
+# "html" is HTML output to the file.
+#
+help-output = console ;
+
+
+# The file to output documentation to when generating "text" or "html" help.
+# This is without extension as the extension is determined by the type of
+# output.
+#
+help-output-file = help ;
+
+# Whether to include local rules in help output.
+#
+.option.show-locals ?= ;
+
+# When showing documentation for a module, whether to also generate
+# automatically the detailed docs for each item in the module.
+#
+.option.detailed ?= ;
+
+# Generate debug output as the help is generated and modules are parsed.
+#
+.option.debug ?= ;
+
+# Enable or disable a documentation option.
+#
+local rule set-option (
+    option  # The option name.
+    : value ?  # Enabled (non-empty), or disabled (empty)
+)
+{
+    .option.$(option) = $(value) ;
+}
+
+
+# Set the type of output.
+#
+local rule set-output ( type )
+{
+    help-output = $(type) ;
+}
+
+
+# Set the output to a file.
+#
+local rule set-output-file ( file )
+{
+    help-output-file = $(file) ;
+}
+
+
+# Extracts the brief comment from a complete comment. The brief comment is the
+# first sentence.
+#
+local rule brief-comment (
+    docs *  # The comment documentation.
+)
+{
+    local d = $(docs:J=" ") ;
+    local p = [ MATCH ".*([.])$" : $(d) ] ;
+    if ! $(p) { d = $(d)"." ; }
+    d = $(d)" " ;
+    local m = [ MATCH "^([^.]+[.])(.*)" : $(d) ] ;
+    local brief = $(m[1]) ;
+    while $(m[2]) && [ MATCH "^([^ ])" : $(m[2]) ]
+    {
+        m = [ MATCH "^([^.]+[.])(.*)" : $(m[2]) ] ;
+        brief += $(m[1]) ;
+    }
+    return $(brief:J="") ;
+}
+
+
+# Specifies the documentation for the current module.
+#
+local rule set-module-doc (
+    module-name ?  # The name of the module to document.
+    : docs *  # The documentation for the module.
+)
+{
+    module-name ?= * ;
+
+    $(module-name).brief = [ brief-comment $(docs) ] ;
+    $(module-name).docs = $(docs) ;
+
+    if ! $(module-name) in $(documented-modules)
+    {
+        documented-modules += $(module-name) ;
+    }
+}
+
+
+# Specifies the documentation for the current module.
+#
+local rule set-module-copyright (
+    module-name ?  # The name of the module to document.
+    : copyright *  # The copyright for the module.
+)
+{
+    module-name ?= * ;
+
+    $(module-name).copy-brief = [ brief-comment $(copyright) ] ;
+    $(module-name).copy-docs = $(docs) ;
+
+    if ! $(module-name) in $(documented-modules)
+    {
+        documented-modules += $(module-name) ;
+    }
+}
+
+
+# Specifies the documentation for a rule in the current module. If called in the
+# global module, this documents a global rule.
+#
+local rule set-rule-doc (
+    name  # The name of the rule.
+    module-name ?  # The name of the module to document.
+    is-local ?  # Whether the rule is local to the module.
+    : docs *  # The documentation for the rule.
+)
+{
+    module-name ?= * ;
+
+    $(module-name).$(name).brief = [ brief-comment $(docs) ] ;
+    $(module-name).$(name).docs = $(docs) ;
+    $(module-name).$(name).is-local = $(is-local) ;
+
+    if ! $(name) in $($(module-name).rules)
+    {
+        $(module-name).rules += $(name) ;
+    }
+}
+
+
+# Specify a class, will turn a rule into a class.
+#
+local rule set-class-doc (
+    name  # The name of the class.
+    module-name ?  # The name of the module to document.
+    : super-name ?  # The super class name.
+)
+{
+    module-name ?= * ;
+
+    $(module-name).$(name).is-class = true ;
+    $(module-name).$(name).super-name = $(super-name) ;
+    $(module-name).$(name).class-rules =
+        [ MATCH "^($(name)[.].*)" : $($(module-name).rules) ] ;
+    $(module-name).$($(module-name).$(name).class-rules).is-class-rule = true ;
+
+    $(module-name).classes += $(name) ;
+    $(module-name).class-rules += $($(module-name).$(name).class-rules) ;
+    $(module-name).rules =
+        [ set.difference $($(module-name).rules) :
+            $(name) $($(module-name).$(name).class-rules) ] ;
+}
+
+
+# Set the argument call signature of a rule.
+#
+local rule set-rule-arguments-signature (
+    name  # The name of the rule.
+    module-name ?  # The name of the module to document.
+    : signature *  # The arguments signature.
+)
+{
+    module-name ?= * ;
+
+    $(module-name).$(name).signature = $(signature) ;
+}
+
+
+# Specifies the documentation for an argument of a rule.
+#
+local rule set-argument-doc (
+    name  # The name of the argument.
+    qualifier  # Argument syntax qualifier, "*", "+", etc.
+    rule-name  # The name of the rule.
+    module-name ?  # THe optional name of the module.
+    : docs *  # The documentation.
+)
+{
+    module-name ?= * ;
+
+    $(module-name).$(rule-name).args.$(name).qualifier = $(qualifier) ;
+    $(module-name).$(rule-name).args.$(name).docs = $(docs) ;
+
+    if ! $(name) in $($(module-name).$(rule-name).args)
+    {
+        $(module-name).$(rule-name).args += $(name) ;
+    }
+}
+
+
+# Specifies the documentation for a variable in the current module. If called in
+# the global module, the global variable is documented.
+#
+local rule set-variable-doc (
+    name  # The name of the variable.
+    default  # The default value.
+    initial  # The initial value.
+    module-name ?  # The name of the module to document.
+    : docs *  # The documentation for the variable.
+)
+{
+    module-name ?= * ;
+
+    $(module-name).$(name).brief = [ brief-comment $(docs) ] ;
+    $(module-name).$(name).default = $(default) ;
+    $(module-name).$(name).initial = $(initial) ;
+    $(module-name).$(name).docs = $(docs) ;
+
+    if ! $(name) in $($(module-name).variables)
+    {
+        $(module-name).variables += $(name) ;
+    }
+}
+
+
+# Generates a general description of the documentation and help system.
+#
+local rule print-help-top ( )
+{
+    print.section "General command line usage" ;
+
+    print.text "    bjam [options] [properties] [targets]
+
+  Options, properties and targets can be specified in any order.
+      " ;
+
+    print.section "Important Options" ;
+
+    print.list-start ;
+    print.list-item "--clean Remove targets instead of building" ;
+    print.list-item "-a Rebuild everything" ;
+    print.list-item "-n Don't execute the commands, only print them" ;
+    print.list-item "-d+2 Show commands as they are executed" ;
+    print.list-item "-d0 Supress all informational messages" ;
+    print.list-item "-q Stop at first error" ;
+    print.list-item "--debug-configuration Diagnose configuration" ;
+    print.list-item "--debug-building Report which targets are built with what properties" ;
+    print.list-item "--debug-generator Diagnose generator search/execution" ;
+    print.list-end ;
+
+    print.section "Further Help"
+        The following options can be used to obtain additional documentation.
+      ;
+
+    print.list-start ;
+    print.list-item "--help-options Print more obscure command line options." ;
+    print.list-item "--help-internal Boost.Build implementation details." ;
+    print.list-item "--help-doc-options Implementation details doc formatting." ;
+    print.list-end ;
+}
+
+
+# Generate Jam/Boost.Jam command usage information.
+#
+local rule print-help-usage ( )
+{
+    print.section "Boost.Jam Usage"
+        "bjam [ options... ] targets..."
+        ;
+    print.list-start ;
+    print.list-item -a;
+        Build all targets, even if they are current. ;
+    print.list-item -fx;
+        Read '"x"' as the Jamfile for building instead of searching for the
+        Boost.Build system. ;
+    print.list-item -jx;
+        Run up to '"x"' commands concurrently. ;
+    print.list-item -n;
+        Do not execute build commands. Instead print out the commands as they
+        would be executed if building. ;
+    print.list-item -ox;
+        Output the used build commands to file '"x"'. ;
+    print.list-item -q;
+        Quit as soon as a build failure is encountered. Without this option
+        Boost.Jam will continue building as many targets as it can.
+    print.list-item -sx=y;
+        Sets a Jam variable '"x"' to the value '"y"', overriding any value that
+        variable would have from the environment. ;
+    print.list-item -tx;
+        Rebuild the target '"x"', even if it is up-to-date. ;
+    print.list-item -v;
+        Display the version of bjam. ;
+    print.list-item --x;
+        Any option not explicitly handled by Boost.Jam remains available to
+        build scripts using the '"ARGV"' variable. ;
+    print.list-item -dn;
+        Enables output of diagnostic messages. The debug level '"n"' and all
+        below it are enabled by this option. ;
+    print.list-item -d+n;
+        Enables output of diagnostic messages. Only the output for debug level
+        '"n"' is enabled. ;
+    print.list-end ;
+    print.section "Debug Levels"
+        Each debug level shows a different set of information. Usually with
+        higher levels producing more verbose information. The following levels
+        are supported: ;
+    print.list-start ;
+    print.list-item 0;
+        Turn off all diagnostic output. Only errors are reported. ;
+    print.list-item 1;
+        Show the actions taken for building targets, as they are executed. ;
+    print.list-item 2;
+        Show "quiet" actions and display all action text, as they are executed. ;
+    print.list-item 3;
+        Show dependency analysis, and target/source timestamps/paths. ;
+    print.list-item 4;
+        Show arguments of shell invocations. ;
+    print.list-item 5;
+        Show rule invocations and variable expansions. ;
+    print.list-item 6;
+        Show directory/header file/archive scans, and attempts at binding to targets. ;
+    print.list-item 7;
+        Show variable settings. ;
+    print.list-item 8;
+        Show variable fetches, variable expansions, and evaluation of '"if"' expressions. ;
+    print.list-item 9;
+        Show variable manipulation, scanner tokens, and memory usage. ;
+    print.list-item 10;
+        Show execution times for rules. ;
+    print.list-item 11;
+        Show parsing progress of Jamfiles. ;
+    print.list-item 12;
+        Show graph for target dependencies. ;
+    print.list-item 13;
+        Show changes in target status (fate). ;
+    print.list-end ;
+}
+
+
+# Generates description of options controlling the help system. This
+# automatically reads the options as all variables in the doc module of the form
+# ".option.*".
+#
+local rule print-help-options (
+    module-name  # The doc module.
+)
+{
+    print.section "Help Options"
+        These are all the options available for enabling or disabling to control
+        the help system in various ways. Options can be enabled or disabled with
+        '"--help-enable-<option>"', and "'--help-disable-<option>'"
+        respectively.
+        ;
+    local options-to-list = [ MATCH ^[.]option[.](.*) : $($(module-name).variables) ] ;
+    if $(options-to-list)
+    {
+        print.list-start ;
+        for local option in [ sequence.insertion-sort $(options-to-list) ]
+        {
+            local def = disabled ;
+            if $($(module-name)..option.$(option).default) != "(empty)"
+            {
+                def = enabled ;
+            }
+            print.list-item $(option): $($(module-name)..option.$(option).docs)
+                Default is $(def). ;
+        }
+        print.list-end ;
+    }
+}
+
+
+# Generate brief documentation for all the known items in the section for a
+# module. Possible sections are: "rules", and "variables".
+#
+local rule print-help-module-section (
+    module  # The module name.
+    section  # rules or variables.
+    : section-head  # The title of the section.
+    section-description *  # The detailed description of the section.
+)
+{
+    if $($(module).$(section))
+    {
+        print.section $(section-head) $(section-description) ;
+        print.list-start ;
+        for local item in [ sequence.insertion-sort $($(module).$(section)) ]
+        {
+            local show = ;
+            if ! $($(module).$(item).is-local)
+            {
+                show = yes ;
+            }
+            if $(.option.show-locals)
+            {
+                show = yes ;
+            }
+            if $(show)
+            {
+                print.list-item $(item): $($(module).$(item).brief) ;
+            }
+        }
+        print.list-end ;
+    }
+}
+
+
+# Generate documentation for all possible modules. We attempt to list all known
+# modules together with a brief description of each.
+#
+local rule print-help-all (
+    ignored  # Usually the module name, but is ignored here.
+)
+{
+    print.section "Modules"
+        "These are all the known modules. Use --help <module> to get more"
+        "detailed information."
+        ;
+    if $(documented-modules)
+    {
+        print.list-start ;
+        for local module-name in [ sequence.insertion-sort $(documented-modules) ]
+        {
+            # The brief docs for each module.
+            print.list-item $(module-name): $($(module-name).brief) ;
+        }
+        print.list-end ;
+    }
+    # The documentation for each module when details are requested.
+    if $(documented-modules) && $(.option.detailed)
+    {
+        for local module-name in [ sequence.insertion-sort $(documented-modules) ]
+        {
+            # The brief docs for each module.
+            print-help-module $(module-name) ;
+        }
+    }
+}
+
+
+# Generate documentation for a module. Basic information about the module is
+# generated.
+#
+local rule print-help-module (
+    module-name  # The module to generate docs for.
+)
+{
+    # Print the docs.
+    print.section "Module '$(module-name)'" $($(module-name).docs) ;
+
+    # Print out the documented classes.
+    print-help-module-section $(module-name) classes : "Module '$(module-name)' classes"
+        Use --help $(module-name).<class-name> to get more information. ;
+
+    # Print out the documented rules.
+    print-help-module-section $(module-name) rules : "Module '$(module-name)' rules"
+        Use --help $(module-name).<rule-name> to get more information. ;
+
+    # Print out the documented variables.
+    print-help-module-section $(module-name) variables : "Module '$(module-name)' variables"
+        Use --help $(module-name).<variable-name> to get more information. ;
+
+    # Print out all the same information but indetailed form.
+    if $(.option.detailed)
+    {
+        print-help-classes $(module-name) ;
+        print-help-rules $(module-name) ;
+        print-help-variables $(module-name) ;
+    }
+}
+
+
+# Generate documentation for a set of rules in a module.
+#
+local rule print-help-rules (
+    module-name  # Module of the rules.
+    : name *  # Optional list of rules to describe.
+)
+{
+    name ?= $($(module-name).rules) ;
+    if [ set.intersection $(name) : $($(module-name).rules) $($(module-name).class-rules) ]
+    {
+        # Print out the given rules.
+        for local rule-name in [ sequence.insertion-sort $(name) ]
+        {
+            if $(.option.show-locals) || ! $($(module-name).$(rule-name).is-local)
+            {
+                local signature = $($(module-name).$(rule-name).signature:J=" ") ;
+                signature ?= "" ;
+                print.section "Rule '$(module-name).$(rule-name) ( $(signature) )'"
+                    $($(module-name).$(rule-name).docs) ;
+                if $($(module-name).$(rule-name).args)
+                {
+                    print.list-start ;
+                    for local arg-name in $($(module-name).$(rule-name).args)
+                    {
+                        print.list-item $(arg-name): $($(module-name).$(rule-name).args.$(arg-name).docs) ;
+                    }
+                    print.list-end ;
+                }
+            }
+        }
+    }
+}
+
+
+# Generate documentation for a set of classes in a module.
+#
+local rule print-help-classes (
+    module-name  # Module of the classes.
+    : name *  # Optional list of classes to describe.
+)
+{
+    name ?= $($(module-name).classes) ;
+    if [ set.intersection $(name) : $($(module-name).classes) ]
+    {
+        # Print out the given classes.
+        for local class-name in [ sequence.insertion-sort $(name) ]
+        {
+            if $(.option.show-locals) || ! $($(module-name).$(class-name).is-local)
+            {
+                local signature = $($(module-name).$(class-name).signature:J=" ") ;
+                signature ?= "" ;
+                print.section "Class '$(module-name).$(class-name) ( $(signature) )'"
+                    $($(module-name).$(class-name).docs)
+                   "Inherits from '"$($(module-name).$(class-name).super-name)"'." ;
+                if $($(module-name).$(class-name).args)
+                {
+                    print.list-start ;
+                    for local arg-name in $($(module-name).$(class-name).args)
+                    {
+                        print.list-item $(arg-name): $($(module-name).$(class-name).args.$(arg-name).docs) ;
+                    }
+                    print.list-end ;
+                }
+            }
+
+            # Print out the documented rules of the class.
+            print-help-module-section $(module-name) $(class-name).class-rules : "Class '$(module-name).$(class-name)' rules"
+                Use --help $(module-name).<rule-name> to get more information. ;
+
+            # Print out all the rules if details are requested.
+            if $(.option.detailed)
+            {
+                print-help-rules $(module-name) : $($(module-name).$(class-name).class-rules) ;
+            }
+        }
+    }
+}
+
+
+# Generate documentation for a set of variables in a module.
+#
+local rule print-help-variables (
+    module-name ?  # Module of the variables.
+    : name *  # Optional list of variables to describe.
+)
+{
+    name ?= $($(module-name).variables) ;
+    if [ set.intersection $(name) : $($(module-name).variables) ]
+    {
+        # Print out the given variables.
+        for local variable-name in [ sequence.insertion-sort $(name) ]
+        {
+            print.section "Variable '$(module-name).$(variable-name)'" $($(module-name).$(variable-name).docs) ;
+            if $($(module-name).$(variable-name).default) ||
+                $($(module-name).$(variable-name).initial)
+            {
+                print.list-start ;
+                if $($(module-name).$(variable-name).default)
+                {
+                    print.list-item "default value:" '$($(module-name).$(variable-name).default:J=" ")' ;
+                }
+                if $($(module-name).$(variable-name).initial)
+                {
+                    print.list-item "initial value:" '$($(module-name).$(variable-name).initial:J=" ")' ;
+                }
+                print.list-end ;
+            }
+        }
+    }
+}
+
+
+# Generate documentation for a project.
+#
+local rule print-help-project (
+    unused ?
+    : jamfile *  # The project Jamfile.
+)
+{
+    if $(jamfile<$(jamfile)>.docs)
+    {
+        # Print the docs.
+        print.section "Project-specific help"
+            Project has jamfile at $(jamfile) ;
+
+        print.lines $(jamfile<$(jamfile)>.docs) "" ;
+    }
+}
+
+
+# Generate documentation for a config file.
+#
+local rule print-help-config (
+    unused ?
+    : type  # The type of configuration file user or site.
+    config-file  # The configuration Jamfile.
+)
+{
+    if $(jamfile<$(config-file)>.docs)
+    {
+        # Print the docs.
+        print.section "Configuration help"
+            Configuration file at $(config-file) ;
+
+        print.lines $(jamfile<$(config-file)>.docs) "" ;
+    }
+}
+
+
+ws = "	 " ;
+
+# Extract the text from a block of comments.
+#
+local rule extract-comment (
+    var  # The name of the variable to extract from.
+)
+{
+    local comment = ;
+    local line = $($(var)[1]) ;
+    local l = [ MATCH "^[$(ws)]*(#)(.*)$" : $(line) ] ;
+    while $(l[1]) && $($(var))
+    {
+        if $(l[2]) { comment += [ MATCH "^[$(ws)]?(.*)$" : $(l[2]) ] ; }
+        else { comment += "" ; }
+        $(var) = $($(var)[2-]) ;
+        line = $($(var)[1]) ;
+        l = [ MATCH "^[$(ws)]*(#)(.*)$" : $(line) ] ;
+    }
+    return $(comment) ;
+}
+
+
+# Extract s single line of Jam syntax, ignoring any comments.
+#
+local rule extract-syntax (
+    var  # The name of the variable to extract from.
+)
+{
+    local syntax = ;
+    local line = $($(var)[1]) ;
+    while ! $(syntax) && ! [ MATCH "^[$(ws)]*(#)" : $(line) ] && $($(var))
+    {
+        local m = [ MATCH "^[$(ws)]*(.*)$" : $(line) ] ;
+        if $(m) && ! $(m) = ""
+        {
+            syntax = $(m) ;
+        }
+        $(var) = $($(var)[2-]) ;
+        line = $($(var)[1]) ;
+    }
+    return $(syntax) ;
+}
+
+
+# Extract the next token, this is either a single Jam construct or a comment as
+# a single token.
+#
+local rule extract-token (
+    var  # The name of the variable to extract from.
+)
+{
+    local parts = ;
+    while ! $(parts)
+    {
+        parts = [ MATCH "^[$(ws)]*([^$(ws)]+)[$(ws)]*(.*)" : $($(var)[1]) ] ;
+        if ! $(parts)
+        {
+            $(var) = $($(var)[2-]) ;
+        }
+    }
+    local token = ;
+    if [ MATCH "^(#)" : $(parts[1]) ]
+    {
+        token = $(parts:J=" ") ;
+        $(var) = $($(var)[2-]) ;
+    }
+    else
+    {
+        token = $(parts[1]) ;
+        $(var) = $(parts[2-]:J=" ") $($(var)[2-]) ;
+    }
+    return $(token) ;
+}
+
+
+# Scan for a rule declaration as the next item in the variable.
+#
+local rule scan-rule (
+    syntax ?  # The first part of the text which contains the rule declaration.
+    : var  # The name of the variable to extract from.
+)
+{
+    local rule-parts =
+        [ MATCH "^[$(ws)]*(rule|local[$(ws)]*rule)[$(ws)]+([^$(ws)]+)[$(ws)]*(.*)" : $(syntax:J=" ") ] ;
+    if $(rule-parts[1])
+    {
+        # Mark as doc for rule.
+        local rule-name = $(rule-parts[2]) ;
+        if $(scope-name)
+        {
+            rule-name = $(scope-name).$(rule-name) ;
+        }
+        local is-local = [ MATCH "^(local).*" : $(rule-parts[1]) ] ;
+        if $(comment-block)
+        {
+            set-rule-doc $(rule-name) $(module-name) $(is-local) : $(comment-block) ;
+        }
+        # Parse args of rule.
+        $(var) = $(rule-parts[3-]) $($(var)) ;
+        set-rule-arguments-signature $(rule-name) $(module-name) : [ scan-rule-arguments $(var) ] ;
+        # Scan within this rules scope.
+        local scope-level = [ extract-token $(var) ] ;
+        local scope-name = $(rule-name) ;
+        while $(scope-level)
+        {
+            local comment-block = [ extract-comment $(var) ] ;
+            local syntax-block = [ extract-syntax $(var) ] ;
+            if [ scan-rule $(syntax-block) : $(var) ]
+            {
+            }
+            else if [ MATCH "^(\\{)" : $(syntax-block) ]
+            {
+                scope-level += "{" ;
+            }
+            else if [ MATCH "^[^\\}]*([\\}])[$(ws)]*$"  : $(syntax-block) ]
+            {
+                scope-level = $(scope-level[2-]) ;
+            }
+        }
+
+        return true ;
+    }
+}
+
+
+# Scan the arguments of a rule.
+#
+local rule scan-rule-arguments (
+    var  # The name of the variable to extract from.
+)
+{
+    local arg-syntax = ;
+    local token = [ extract-token $(var) ] ;
+    while $(token) != "(" && $(token) != "{"
+    {
+        token = [ extract-token $(var) ] ;
+    }
+    if $(token) != "{"
+    {
+        token = [ extract-token $(var) ] ;
+    }
+    local arg-signature = ;
+    while $(token) != ")" && $(token) != "{"
+    {
+        local arg-name = ;
+        local arg-qualifier = " " ;
+        local arg-doc = ;
+        if $(token) = ":"
+        {
+            arg-signature += $(token) ;
+            token = [ extract-token $(var) ] ;
+        }
+        arg-name = $(token) ;
+        arg-signature += $(token) ;
+        token = [ extract-token $(var) ] ;
+        if [ MATCH "^([\\*\\+\\?])" : $(token) ]
+        {
+            arg-qualifier = $(token) ;
+            arg-signature += $(token) ;
+            token = [ extract-token $(var) ] ;
+        }
+        if $(token) = ":"
+        {
+            arg-signature += $(token) ;
+            token = [ extract-token $(var) ] ;
+        }
+        if [ MATCH "^(#)" : $(token) ]
+        {
+            $(var) = $(token) $($(var)) ;
+            arg-doc = [ extract-comment $(var) ] ;
+            token = [ extract-token $(var) ] ;
+        }
+        set-argument-doc $(arg-name) $(arg-qualifier) $(rule-name) $(module-name) : $(arg-doc) ;
+    }
+    while $(token) != "{"
+    {
+        token = [ extract-token $(var) ] ;
+    }
+    $(var) = "{" $($(var)) ;
+    arg-signature ?= "" ;
+    return $(arg-signature) ;
+}
+
+
+# Scan for a variable declaration.
+#
+local rule scan-variable (
+    syntax ?  # The first part of the text which contains the variable declaration.
+    : var  # The name of the variable to extract from.
+)
+{
+    # [1] = name, [2] = value(s)
+    local var-parts =
+        [ MATCH "^[$(ws)]*([^$(ws)]+)[$(ws)]+([\\?\\=]*)[$(ws)]+([^\\;]*)\\;" : $(syntax) ] ;
+    if $(var-parts)
+    {
+        local value = [ MATCH "^(.*)[ ]$" : $(var-parts[3-]:J=" ") ] ;
+        local default-value = "" ;
+        local initial-valie = "" ;
+        if $(var-parts[2]) = "?="
+        {
+            default-value = $(value) ;
+            default-value ?= "(empty)" ;
+        }
+        else
+        {
+            initial-value = $(value) ;
+            initial-value ?= "(empty)" ;
+        }
+        if $(comment-block)
+        {
+            set-variable-doc $(var-parts[1]) $(default-value) $(initial-value) $(module-name) : $(comment-block) ;
+        }
+        return true ;
+    }
+}
+
+
+# Scan a class declaration.
+#
+local rule scan-class (
+    syntax ?  # The syntax text for the class declaration.
+)
+{
+    # [1] = class?, [2] = name, [3] = superclass
+    local class-parts =
+        [ MATCH "^[$(ws)]*([^$(ws)]+)[$(ws)]+([^$(ws)]+)[$(ws)]+:*[$(ws)]*([^$(ws);]*)" : $(syntax) ] ;
+    if $(class-parts[1]) = "class" || $(class-parts[1]) = "class.class"
+    {
+        set-class-doc $(class-parts[2]) $(module-name) : $(class-parts[3]) ;
+    }
+}
+
+
+# Scan a module file for documentation comments. This also invokes any actions
+# assigned to the module. The actions are the rules that do the actual output of
+# the documentation. This rule is invoked as the header scan rule for the module
+# file.
+#
+rule scan-module (
+    target  # The module file.
+    : text *  # The text in the file, one item per line.
+    : action *  # Rule to call to output docs for the module.
+)
+{
+    if $(.option.debug) { ECHO "HELP:" scanning module target '$(target)' ; }
+    local module-name = $(target:B) ;
+    local module-documented = ;
+    local comment-block = ;
+    local syntax-block = ;
+    # This is a hack because we can not get the line of a file if it happens to
+    # not have a new-line termination.
+    text += "}" ;
+    while $(text)
+    {
+        comment-block = [ extract-comment text ] ;
+        syntax-block = [ extract-syntax text ] ;
+        if $(.option.debug)
+        {
+            ECHO "HELP:" comment block; '$(comment-block)' ;
+            ECHO "HELP:" syntax block; '$(syntax-block)' ;
+        }
+        if [ scan-rule $(syntax-block) : text ] { }
+        else if [ scan-variable $(syntax-block) : text ] { }
+        else if [ scan-class $(syntax-block) ] { }
+        else if [ MATCH .*([cC]opyright).* : $(comment-block:J=" ") ]
+        {
+            # mark as the copy for the module.
+            set-module-copyright $(module-name) : $(comment-block) ;
+        }
+        else if $(action[1]) in "print-help-project" "print-help-config"
+            && ! $(jamfile<$(target)>.docs)
+        {
+            # special module docs for the project jamfile.
+            jamfile<$(target)>.docs = $(comment-block) ;
+        }
+        else if ! $(module-documented)
+        {
+            # document the module.
+            set-module-doc $(module-name) : $(comment-block) ;
+            module-documented = true ;
+        }
+    }
+    if $(action)
+    {
+        $(action[1]) $(module-name) : $(action[2-]) ;
+    }
+}
+
+
+# Import scan-module to global scope, so that it is available during header
+# scanning phase.
+#
+IMPORT $(__name__) : scan-module : : doc.scan-module ;
+
+
+# Read in a file using the SHELL builtin and return the individual lines as
+# would be done for header scanning.
+#
+local rule read-file (
+    file  # The file to read in.
+)
+{
+    file = [ path.native [ path.root [ path.make $(file) ] [ path.pwd ] ] ] ;
+    if ! $(.file<$(file)>.lines)
+    {
+        local content ;
+        switch [ modules.peek : OS ]
+        {
+            case NT :
+            content = [ SHELL "TYPE \"$(file)\"" ] ;
+
+            case * :
+            content = [ SHELL "cat \"$(file)\"" ] ;
+        }
+        local lines ;
+        local nl = "
+" ;
+        local << = "([^$(nl)]*)[$(nl)](.*)" ;
+        local line+ = [ MATCH "$(<<)" : "$(content)" ] ;
+        while $(line+)
+        {
+            lines += $(line+[1]) ;
+            line+ = [ MATCH "$(<<)" : "$(line+[2])" ] ;
+        }
+        .file<$(file)>.lines = $(lines) ;
+    }
+    return $(.file<$(file)>.lines) ;
+}
+
+
+# Add a scan action to perform to generate the help documentation. The action
+# rule is passed the name of the module as the first argument. The second
+# argument(s) are optional and passed directly as specified here.
+#
+local rule do-scan (
+    modules +  # The modules to scan and perform the action on.
+    : action *  # The action rule, plus the secondary arguments to pass to the action rule.
+)
+{
+    if $(help-output) = text
+    {
+        print.output $(help-output-file).txt plain ;
+        ALWAYS $(help-output-file).txt ;
+        DEPENDS all : $(help-output-file).txt ;
+    }
+    if $(help-output) = html
+    {
+        print.output $(help-output-file).html html ;
+        ALWAYS $(help-output-file).html ;
+        DEPENDS all : $(help-output-file).html ;
+    }
+    for local module-file in $(modules[1--2])
+    {
+        scan-module $(module-file) : [ read-file $(module-file) ] ;
+    }
+    scan-module $(modules[-1]) : [ read-file $(modules[-1]) ] : $(action) ;
+}
diff --git a/jam-files/boost-build/util/indirect.jam b/jam-files/boost-build/util/indirect.jam
new file mode 100644
index 00000000..ec63f192
--- /dev/null
+++ b/jam-files/boost-build/util/indirect.jam
@@ -0,0 +1,115 @@
+# Copyright 2003 Dave Abrahams
+# Copyright 2003 Vladimir Prus
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+import modules ;
+import numbers ;
+
+
+# The pattern that indirect rules must match: module%rule
+.pattern = ^([^%]*)%([^%]+)$ ;
+
+
+#
+# Type checking rules.
+#
+local rule indirect-rule ( x )
+{
+    if ! [ MATCH $(.pattern) : $(x) ]
+    {
+        return "expected a string of the form module%rule, but got \""$(x)"\" for argument" ;
+    }
+}
+
+
+# Make an indirect rule which calls the given rule. If context is supplied it is
+# expected to be the module in which to invoke the rule by the 'call' rule
+# below. Otherwise, the rule will be invoked in the module of this rule's
+# caller.
+#
+rule make ( rulename bound-args * : context ? )
+{
+    context ?= [ CALLER_MODULE ] ;
+    context ?= "" ;
+    return $(context)%$(rulename) $(bound-args) ;
+}
+
+
+# Make an indirect rule which calls the given rule. 'rulename' may be a
+# qualified rule; if so it is returned unchanged. Otherwise, if frames is not
+# supplied, the result will be invoked (by 'call', below) in the module of the
+# caller. Otherwise, frames > 1 specifies additional call frames to back up in
+# order to find the module context.
+#
+rule make-qualified ( rulename bound-args * : frames ? )
+{
+    if [ MATCH $(.pattern) : $(rulename) ]
+    {
+        return $(rulename) $(bound-args) ;
+    }
+    else
+    {
+        frames ?= 1 ;
+        # If the rule name includes a Jamfile module, grab it.
+        local module-context = [ MATCH ^(Jamfile<[^>]*>)\\..* : $(rulename) ] ;
+        
+        if ! $(module-context)
+        {                    
+            # Take the first dot-separated element as module name. This disallows
+            # module names with dots, but allows rule names with dots.
+            module-context = [ MATCH ^([^.]*)\\..* : $(rulename) ] ;
+        }        
+        module-context ?= [ CALLER_MODULE $(frames) ] ;
+        return [ make $(rulename) $(bound-args) : $(module-context) ] ;
+    }
+}
+
+
+# Returns the module name in which the given indirect rule will be invoked.
+#
+rule get-module ( [indirect-rule] x )
+{
+    local m = [ MATCH $(.pattern) : $(x) ] ;
+    if ! $(m[1])
+    {
+        m = ;
+    }
+    return $(m[1]) ;
+}
+
+
+# Returns the rulename that will be called when x is invoked.
+#
+rule get-rule ( [indirect-rule] x )
+{
+    local m = [ MATCH $(.pattern) : $(x) ] ;
+    return $(m[2]) ;
+}
+
+
+# Invoke the given indirect-rule.
+#
+rule call ( [indirect-rule] r args * : * )
+{
+    return [ modules.call-in [ get-module $(r) ] : [ get-rule $(r) ] $(args)
+        : $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ] ;
+}
+
+
+rule __test__
+{
+    import assert ;
+
+    rule foo-barr! ( x )
+    {
+        assert.equal $(x) : x ;
+    }
+
+    assert.equal [ get-rule [ make foo-barr! ] ] : foo-barr! ;
+    assert.equal [ get-module [ make foo-barr! ] ] : [ CALLER_MODULE ] ;
+
+    call [ make foo-barr! ] x ;
+    call [ make foo-barr! x ] ;
+    call [ make foo-barr! : [ CALLER_MODULE ] ] x ;
+}
diff --git a/jam-files/boost-build/util/indirect.py b/jam-files/boost-build/util/indirect.py
new file mode 100644
index 00000000..78fa8994
--- /dev/null
+++ b/jam-files/boost-build/util/indirect.py
@@ -0,0 +1,15 @@
+# Status: minimally ported. This module is not supposed to be used much
+# with Boost.Build/Python.
+# 
+# Copyright 2003 Dave Abrahams
+# Copyright 2003 Vladimir Prus
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+from b2.util import call_jam_function, bjam_signature
+
+def call(*args):
+    a1 = args[0]
+    name = a1[0]
+    a1tail = a1[1:]
+    call_jam_function(name, *((a1tail,) + args[1:]))
diff --git a/jam-files/boost-build/util/logger.py b/jam-files/boost-build/util/logger.py
new file mode 100644
index 00000000..de652129
--- /dev/null
+++ b/jam-files/boost-build/util/logger.py
@@ -0,0 +1,46 @@
+# Copyright Pedro Ferreira 2005. Distributed under the Boost
+# Software License, Version 1.0. (See accompanying
+# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+import sys
+
+class NullLogger:
+    def __init__ (self):
+        self.indent_ = ''
+    
+    def log (self, source_name, *args):
+        if self.on () and self.interesting (source_name):
+            self.do_log (self.indent_)
+            for i in args:
+                self.do_log (i)
+            self.do_log ('\n')
+    
+    def increase_indent (self):
+        if self.on ():
+            self.indent_ += '    '
+        
+    def decrease_indent (self):
+        if self.on () and len (self.indent_) > 4:
+            self.indent_ = self.indent_ [-4:]
+
+    def do_log (self, *args):
+        pass
+    
+    def interesting (self, source_name):
+        return False
+
+    def on (self):
+        return True
+
+class TextLogger (NullLogger):
+    def __init__ (self):
+        NullLogger.__init__ (self)
+    
+    def do_log (self, arg):
+            sys.stdout.write (str (arg))
+    
+    def interesting (self, source_name):
+        return True
+
+    def on (self):
+        return True
diff --git a/jam-files/boost-build/util/numbers.jam b/jam-files/boost-build/util/numbers.jam
new file mode 100644
index 00000000..665347d3
--- /dev/null
+++ b/jam-files/boost-build/util/numbers.jam
@@ -0,0 +1,218 @@
+# Copyright 2001, 2002 Dave Abrahams
+# Copyright 2002, 2003 Vladimir Prus
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+import errors ;
+
+
+rule trim-leading-zeroes ( value )
+{
+    return [ CALC $(value) + 0 ] ;
+}
+
+
+rule check ( numbers * )
+{
+    for local n in $(numbers)
+    {
+        switch $(n)
+        {
+            case *[^0-9]* :
+                errors.error $(n) "in" $(numbers) : is not a number ;
+        }
+    }
+}
+
+
+rule increment ( number )
+{
+    return [ CALC $(number) + 1 ] ;
+}
+
+
+rule decrement ( number )
+{
+    return [ CALC $(number) - 1 ] ;
+}
+
+
+rule range ( start finish ? : step ? )
+{
+    if ! $(finish)
+    {
+        finish = $(start) ;
+        start = 1 ;
+    }
+    step ?= 1 ;
+
+    check $(start) $(finish) $(step) ;
+
+    if $(finish) != 0
+    {
+        local result ;
+        while [ less $(start) $(finish) ] || $(start) = $(finish)
+        {
+            result += $(start) ;
+            start = [ CALC $(start) + $(step) ] ;
+        }
+        return $(result) ;
+    }
+}
+
+
+rule less ( n1 n2 )
+{
+    switch [ CALC $(n2) - $(n1) ]
+    {
+        case [1-9]* : return true ;
+    }
+}
+
+
+rule log10 ( number )
+{
+    switch $(number)
+    {
+        case *[^0-9]* : errors.error $(number) is not a number ;
+        case 0 : errors.error can't take log of zero ;
+        case [1-9] : return 0 ;
+        case [1-9]? : return 1 ;
+        case [1-9]?? : return 2 ;
+        case [1-9]??? : return 3 ;
+        case [1-9]???? : return 4 ;
+        case [1-9]????? : return 5 ;
+        case [1-9]?????? : return 6 ;
+        case [1-9]??????? : return 7 ;
+        case [1-9]???????? : return 8 ;
+        case [1-9]????????? : return 9 ;
+        case * :
+        {
+            import sequence ;
+            import string ;
+            local chars = [ string.chars $(number) ] ;
+            while $(chars[1]) = 0
+            {
+                chars = $(chars[2-]) ;
+            }
+            if ! $(chars)
+            {
+                errors.error can't take log of zero ;
+            }
+            else
+            {
+                return [ decrement [ sequence.length $(chars) ] ] ;
+            }
+        }
+    }
+}
+
+
+rule __test__ ( )
+{
+    import assert ;
+
+    assert.result 1 : increment 0 ;
+    assert.result 2 : increment 1 ;
+    assert.result 1 : decrement 2 ;
+    assert.result 0 : decrement 1 ;
+    assert.result 50 : increment 49 ;
+    assert.result 49 : decrement 50 ;
+    assert.result 99 : increment 98 ;
+    assert.result 99 : decrement 100 ;
+    assert.result 100 : increment 99 ;
+    assert.result 999 : decrement 1000 ;
+    assert.result 1000 : increment 999 ;
+
+    assert.result 1 2 3 : range 3 ;
+    assert.result 1 2 3 4 5 6 7 8 9 10 11 12 : range 12 ;
+    assert.result 3 4 5 6 7 8 9 10 11 : range 3 11 ;
+    assert.result : range 0 ;
+    assert.result 1 4 7 10 : range 10 : 3 ;
+    assert.result 2 4 6 8 10 : range 2 10 : 2 ;
+    assert.result 25 50 75 100 : range 25 100 : 25 ;
+
+    assert.result 0           : trim-leading-zeroes 0           ;
+    assert.result 1234        : trim-leading-zeroes 1234        ;
+    assert.result 123456      : trim-leading-zeroes 0000123456  ;
+    assert.result 1000123456  : trim-leading-zeroes 1000123456  ;
+    assert.result 10000       : trim-leading-zeroes 10000       ;
+    assert.result 10000       : trim-leading-zeroes 00010000    ;
+
+    assert.true  less 1 2 ;
+    assert.true  less 1 12 ;
+    assert.true  less 1 21 ;
+    assert.true  less 005 217 ;
+    assert.false less 0 0 ;
+    assert.false less 03 3 ;
+    assert.false less 3 03 ;
+    assert.true  less 005 217 ;
+    assert.true  less 0005 217 ;
+    assert.true  less 5 00217 ;
+
+    # TEMPORARY disabled, because nested "try"/"catch" do not work and I do no
+    # have the time to fix that right now.
+    if $(0)
+    {
+    try ;
+    {
+        decrement 0 ;
+    }
+    catch can't decrement zero! ;
+
+    try ;
+    {
+        check foo ;
+    }
+    catch : not a number ;
+
+    try ;
+    {
+        increment foo ;
+    }
+    catch : not a number ;
+
+    try ;
+    {
+        log10 0 ;
+    }
+    catch can't take log of zero ;
+
+    try ;
+    {
+        log10 000 ;
+    }
+    catch can't take log of zero ;
+
+    }
+
+    assert.result 0 : log10 1 ;
+    assert.result 0 : log10 9 ;
+    assert.result 1 : log10 10 ;
+    assert.result 1 : log10 99 ;
+    assert.result 2 : log10 100 ;
+    assert.result 2 : log10 101 ;
+    assert.result 2 : log10 125 ;
+    assert.result 2 : log10 999 ;
+    assert.result 3 : log10 1000 ;
+    assert.result 10 : log10 12345678901 ;
+
+    for local x in [ range 75 110 : 5 ]
+    {
+        for local y in [ range $(x) 111 : 3 ]
+        {
+            if $(x) != $(y)
+            {
+                assert.true less $(x) $(y) ;
+            }
+        }
+    }
+
+    for local x in [ range 90 110 : 2 ]
+    {
+        for local y in [ range 80 $(x) : 4 ]
+        {
+            assert.false less $(x) $(y) ;
+        }
+    }
+}
diff --git a/jam-files/boost-build/util/option.jam b/jam-files/boost-build/util/option.jam
new file mode 100644
index 00000000..f6dc3752
--- /dev/null
+++ b/jam-files/boost-build/util/option.jam
@@ -0,0 +1,109 @@
+#  Copyright (c) 2005 Vladimir Prus.
+#
+#  Use, modification and distribution is subject to the Boost Software
+#  License Version 1.0. (See accompanying file LICENSE_1_0.txt or
+#  http://www.boost.org/LICENSE_1_0.txt)
+
+import modules ;
+
+# Set a value for a named option, to be used when not overridden on the command
+# line.
+rule set ( name : value ? )
+{
+    .option.$(name) = $(value) ;
+}
+
+rule get ( name : default-value ? : implied-value ? )
+{
+    local m = [ MATCH --$(name)=(.*) : [ modules.peek : ARGV ] ] ;
+    if $(m)
+    {
+        return $(m[1]) ;
+    }
+    else  
+    {        
+        m = [ MATCH (--$(name)) : [ modules.peek : ARGV ] ] ;
+        if $(m) && $(implied-value)
+        {
+            return $(implied-value) ;
+        }
+        else if $(.option.$(name))
+        {
+            return $(.option.$(name)) ;
+        }    
+        else
+        {
+            return $(default-value) ;
+        }    
+    }              
+}
+
+
+# Check command-line args as soon as possible. For each option try to load
+# module named after option. Is that succeeds, invoke 'process' rule in the
+# module. The rule may return "true" to indicate that the regular build process
+# should not be attempted.
+#
+# Options take the general form of: --<name>[=<value>] [<value>]
+#
+rule process ( )
+{
+    local ARGV = [ modules.peek : ARGV ] ;
+    local BOOST_BUILD_PATH = [ modules.peek : BOOST_BUILD_PATH ] ;
+
+    local dont-build ;
+    local args = $(ARGV) ;
+    while $(args)
+    {
+        local arg = [ MATCH ^--(.*) : $(args[1]) ] ;
+        while $(args[2-]) && ! $(arg)
+        {
+            args = $(args[2-]) ;
+            arg = [ MATCH ^--(.*) : $(args[1]) ] ;
+        }
+        args = $(args[2-]) ;
+
+        if $(arg)
+        {
+            local split = [ MATCH ^(([^-=]+)[^=]*)(=?)(.*)$ : $(arg) ] ;
+            local full-name = $(split[1]) ;
+            local prefix = $(split[2]) ;
+            local values ;
+
+            if $(split[3])
+            {
+                values = $(split[4]) ;
+            }
+            if $(args) && ! [ MATCH ^(--).* : $(args[1]) ]
+            {
+                values += $(args[1]) ;
+                args = $(args[2-]) ;
+            }
+
+            # Jook in options subdirectories of BOOST_BUILD_PATH for modules
+            # matching the full option name and then its prefix.
+            local plugin-dir = options ;
+            local option-files = [ GLOB $(plugin-dir:D=$(BOOST_BUILD_PATH)) :
+                $(full-name).jam $(prefix).jam ] ;
+
+            if $(option-files)
+            {
+                # Load the file into a module named for the option.
+                local f = $(option-files[1]) ;
+                local module-name = --$(f:D=:S=) ;
+                modules.load $(module-name) : $(f:D=) : $(f:D) ;
+
+                # If there is a process rule, call it with the full option name
+                # and its value (if any). If there was no "=" in the option, the
+                # value will be empty.
+                if process in [ RULENAMES $(module-name) ]
+                {
+                    dont-build += [ modules.call-in $(module-name) : process
+                        --$(full-name) : $(values) ] ;
+                }
+            }
+        }
+    }
+
+    return $(dont-build) ;
+}
diff --git a/jam-files/boost-build/util/option.py b/jam-files/boost-build/util/option.py
new file mode 100644
index 00000000..47d6abdf
--- /dev/null
+++ b/jam-files/boost-build/util/option.py
@@ -0,0 +1,35 @@
+#  Copyright (c) 2005-2010 Vladimir Prus.
+#
+#  Use, modification and distribution is subject to the Boost Software
+#  License Version 1.0. (See accompanying file LICENSE_1_0.txt or
+#  http://www.boost.org/LICENSE_1_0.txt)
+
+import sys
+import re
+import b2.util.regex
+
+options = {}
+
+# Set a value for a named option, to be used when not overridden on the command
+# line.
+def set(name, value=None):
+    
+    global options
+    
+    options[name] = value
+
+def get(name, default_value=None, implied_value=None):
+
+    global options
+
+    matches = b2.util.regex.transform(sys.argv, "--" + re.escape(name) + "=(.*)")
+    if matches:
+        return matches[-1]
+    else:
+        m = b2.util.regex.transform(sys.argv, "--(" + re.escape(name) + ")")
+        if m and implied_value:
+            return implied_value
+        elif options.has_key(name) and options[name] != None:
+            return options[name]
+        else:
+            return default_value
diff --git a/jam-files/boost-build/util/order.jam b/jam-files/boost-build/util/order.jam
new file mode 100644
index 00000000..a74fc8c8
--- /dev/null
+++ b/jam-files/boost-build/util/order.jam
@@ -0,0 +1,169 @@
+#  Copyright (C) 2003 Vladimir Prus
+#  Use, modification, and distribution is subject to the Boost Software
+#  License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy
+#  at http://www.boost.org/LICENSE_1_0.txt)
+
+#  This module defines a class which allows to order arbitrary object with
+# regard to arbitrary binary relation.
+#
+#  The primary use case is the gcc toolset, which is sensitive to library order:
+#  if library 'a' uses symbols from library 'b', then 'a' must be present before
+#  'b' on the linker's command line.
+#
+#  This requirement can be lifted for gcc with GNU ld, but for gcc with Solaris
+#  LD (and for Solaris toolset as well), the order always matters.
+#
+#  So, we need to store order requirements and then order libraries according to
+#  them. It is not possible to use the dependency graph as order requirements.
+#  What we need is a "use symbols" relationship while dependency graph provides
+#  the "needs to be updated" relationship.
+#
+#  For example::
+#    lib a : a.cpp b;
+#    lib b ;
+#
+#  For static linking, library 'a' need not depend on 'b'. However, it should
+#  still come before 'b' on the command line.
+
+class order
+{
+    rule __init__ ( )
+    {
+    }
+
+    # Adds the constraint that 'first' should preceede 'second'.
+    rule add-pair ( first second )
+    {
+        .constraits += $(first)--$(second) ;
+    }
+    NATIVE_RULE class@order : add-pair ;
+
+    # Given a list of objects, reorder them so that the constraints specified by
+    # 'add-pair' are satisfied.
+    #
+    # The algorithm was adopted from an awk script by Nikita Youshchenko
+    # (yoush at cs dot msu dot su)
+    rule order ( objects * )
+    {
+        # The algorithm used is the same is standard transitive closure, except
+        # that we're not keeping in-degree for all vertices, but rather removing
+        # edges.
+        local result ;
+        if $(objects)
+        {
+            local constraints = [ eliminate-unused-constraits $(objects) ] ;
+
+            # Find some library that nobody depends upon and add it to the
+            # 'result' array.
+            local obj ;
+            while $(objects)
+            {
+                local new_objects ;
+                while $(objects)
+                {
+                    obj = $(objects[1]) ;
+                    if [ has-no-dependents $(obj) : $(constraints) ]
+                    {
+                        # Emulate break ;
+                        new_objects += $(objects[2-]) ;
+                        objects = ;
+                    }
+                    else
+                    {
+                        new_objects += $(obj) ;
+                        obj = ;
+                        objects = $(objects[2-]) ;
+                    }
+                }
+
+                if ! $(obj)
+                {
+                    errors.error "Circular order dependencies" ;
+                }
+                # No problem with placing first.
+                result += $(obj) ;
+                # Remove all contraints where 'obj' comes first, since they are
+                # already satisfied.
+                constraints = [ remove-satisfied $(constraints) : $(obj) ] ;
+
+                # Add the remaining objects for further processing on the next
+                # iteration
+                objects = $(new_objects) ;
+            }
+
+        }
+        return $(result) ;
+    }
+    NATIVE_RULE class@order : order ;
+
+    # Eliminate constraints which mention objects not in 'objects'. In
+    # graph-theory terms, this is finding a subgraph induced by ordered
+    # vertices.
+    rule eliminate-unused-constraits ( objects * )
+    {
+        local result ;
+        for local c in $(.constraints)
+        {
+            local m = [ MATCH (.*)--(.*) : $(c) ] ;
+            if $(m[1]) in $(objects) && $(m[2]) in $(objects)
+            {
+                result += $(c) ;
+            }
+        }
+        return $(result) ;
+    }
+
+    # Returns true if there's no constraint in 'constaraints' where 'obj' comes
+    # second.
+    rule has-no-dependents ( obj : constraints * )
+    {
+        local failed ;
+        while $(constraints) && ! $(failed)
+        {
+            local c = $(constraints[1]) ;
+            local m = [ MATCH (.*)--(.*) : $(c) ] ;
+            if $(m[2]) = $(obj)
+            {
+                failed = true ;
+            }
+            constraints = $(constraints[2-]) ;
+        }
+        if ! $(failed)
+        {
+            return true ;
+        }
+    }
+
+    rule remove-satisfied ( constraints * : obj )
+    {
+        local result ;
+        for local c in $(constraints)
+        {
+            local m = [ MATCH (.*)--(.*) : $(c) ] ;
+            if $(m[1]) != $(obj)
+            {
+                result += $(c) ;
+            }
+        }
+        return $(result) ;
+    }
+}
+
+
+rule __test__ ( )
+{
+    import "class" : new ;
+    import assert ;
+
+    c1 = [ new order ] ;
+    $(c1).add-pair l1 l2 ;
+
+    assert.result l1 l2 : $(c1).order l1 l2 ;
+    assert.result l1 l2 : $(c1).order l2 l1 ;
+
+    $(c1).add-pair l2 l3 ;
+    assert.result l1 l2 : $(c1).order l2 l1 ;
+    $(c1).add-pair x l2 ;
+    assert.result l1 l2 : $(c1).order l2 l1 ;
+    assert.result l1 l2 l3 : $(c1).order l2 l3 l1 ;
+}
diff --git a/jam-files/boost-build/util/order.py b/jam-files/boost-build/util/order.py
new file mode 100644
index 00000000..4e67b3f1
--- /dev/null
+++ b/jam-files/boost-build/util/order.py
@@ -0,0 +1,121 @@
+#  Copyright (C) 2003 Vladimir Prus
+#  Use, modification, and distribution is subject to the Boost Software
+#  License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy
+#  at http://www.boost.org/LICENSE_1_0.txt)
+
+class Order:
+    """Allows ordering arbitrary objects with regard to arbitrary binary relation.
+
+        The primary use case is the gcc toolset, which is sensitive to
+        library order: if library 'a' uses symbols from library 'b',
+        then 'a' must be present before 'b' on the linker's command line.
+        
+        This requirement can be lifted for gcc with GNU ld, but for gcc with
+        Solaris LD (and for Solaris toolset as well), the order always matters.
+        
+        So, we need to store order requirements and then order libraries
+        according to them. It it not possible to use dependency graph as
+        order requirements. What we need is "use symbols" relationship
+        while dependency graph provides "needs to be updated" relationship.
+        
+        For example::
+          lib a : a.cpp b;
+          lib b ;
+        
+        For static linking, the 'a' library need not depend on 'b'. However, it
+        still should come before 'b' on the command line.
+    """
+
+    def __init__ (self):
+        self.constraints_ = []
+        
+    def add_pair (self, first, second):
+        """ Adds the constraint that 'first' should precede 'second'.
+        """
+        self.constraints_.append ((first, second))
+
+    def order (self, objects):
+        """ Given a list of objects, reorder them so that the constains specified
+            by 'add_pair' are satisfied.
+            
+            The algorithm was adopted from an awk script by Nikita Youshchenko
+            (yoush at cs dot msu dot su)
+        """
+        # The algorithm used is the same is standard transitive closure,
+        # except that we're not keeping in-degree for all vertices, but
+        # rather removing edges.
+        result = []
+
+        if not objects: 
+            return result
+
+        constraints = self.__eliminate_unused_constraits (objects)
+        
+        # Find some library that nobody depends upon and add it to
+        # the 'result' array.
+        obj = None
+        while objects:
+            new_objects = []
+            while objects:
+                obj = objects [0]
+
+                if self.__has_no_dependents (obj, constraints):
+                    # Emulate break ;
+                    new_objects.extend (objects [1:])
+                    objects = []
+
+                else:
+                    new_objects.append (obj)
+                    obj = None
+                    objects = objects [1:]
+            
+            if not obj:
+                raise BaseException ("Circular order dependencies")
+
+            # No problem with placing first.
+            result.append (obj)
+
+            # Remove all containts where 'obj' comes first,
+            # since they are already satisfied.
+            constraints = self.__remove_satisfied (constraints, obj)
+
+            # Add the remaining objects for further processing
+            # on the next iteration
+            objects = new_objects
+            
+        return result
+
+    def __eliminate_unused_constraits (self, objects):
+        """ Eliminate constraints which mention objects not in 'objects'.
+            In graph-theory terms, this is finding subgraph induced by
+            ordered vertices.
+        """
+        result = []
+        for c in self.constraints_:
+            if c [0] in objects and c [1] in objects:
+                result.append (c)
+
+        return result
+    
+    def __has_no_dependents (self, obj, constraints):
+        """ Returns true if there's no constraint in 'constraints' where 
+            'obj' comes second.
+        """
+        failed = False
+        while constraints and not failed:
+            c = constraints [0]
+
+            if c [1] == obj:
+                failed = True
+
+            constraints = constraints [1:]
+
+        return not failed
+    
+    def __remove_satisfied (self, constraints, obj):
+        result = []
+        for c in constraints:
+            if c [0] != obj:
+                result.append (c)
+
+        return result
diff --git a/jam-files/boost-build/util/os.jam b/jam-files/boost-build/util/os.jam
new file mode 100644
index 00000000..daef27f7
--- /dev/null
+++ b/jam-files/boost-build/util/os.jam
@@ -0,0 +1,171 @@
+# Copyright 2001, 2002, 2003, 2005 Dave Abrahams
+# Copyright 2006 Rene Rivera
+# Copyright 2003, 2005 Vladimir Prus
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+import modules ;
+import string ;
+
+
+# Return the value(s) of the given environment variable(s) at the time bjam was
+# invoked.
+rule environ ( variable-names + )
+{
+    return [ modules.peek .ENVIRON : $(variable-names) ] ;
+}
+
+.name = [ modules.peek : OS ] ;
+.platform = [ modules.peek : OSPLAT ] ;
+.version = [ modules.peek : OSVER ] ;
+
+
+local rule constant ( c : os ? )
+{
+    os ?= $(.name) ;
+    # First look for a platform-specific name, then the general value.
+    local variables = .$(c)-$(os) .$(c) ;
+    local result = $($(variables)) ;
+    return $(result[1]) ;
+}
+
+rule get-constant ( os ? )
+{
+    # Find the name of the constant being accessed, which is equal to the name
+    # used to invoke us.
+    local bt = [ BACKTRACE 1 ] ;
+    local rulename = [ MATCH ([^.]*)$ : $(bt[4]) ] ;
+    return [ constant $(rulename) : $(os) ] ;
+}
+
+
+# export all the common constants
+.constants = name platform version shared-library-path-variable path-separator executable-path-variable executable-suffix ;
+for local constant in $(.constants)
+{
+    IMPORT $(__name__) : get-constant : $(__name__) : $(constant) ;
+}
+EXPORT $(__name__) : $(.constants) ;
+
+.executable-path-variable-NT = PATH ;
+# On Windows the case and capitalization of PATH is not always predictable, so
+# let's find out what variable name was really set.
+if $(.name) = NT
+{
+    for local n in [ VARNAMES .ENVIRON ]
+    {
+        if $(n:L) = path
+        {
+            .executable-path-variable-NT = $(n) ;
+        }
+    }
+}
+
+# Specific constants for various platforms.  There's no need to define any
+# constant whose value would be the same as the default, below.
+.shared-library-path-variable-NT = $(.executable-path-variable-NT) ;
+.path-separator-NT = ";" ;
+.expand-variable-prefix-NT = % ;
+.expand-variable-suffix-NT = % ;
+.executable-suffix-NT = .exe ;
+
+.shared-library-path-variable-CYGWIN = PATH ;
+
+.shared-library-path-variable-MACOSX = DYLD_LIBRARY_PATH ;
+
+.shared-library-path-variable-AIX = LIBPATH ;
+
+# Default constants
+.shared-library-path-variable = LD_LIBRARY_PATH ;
+.path-separator = ":" ;
+.expand-variable-prefix = $ ;
+.expand-variable-suffix = "" ;
+.executable-path-variable = PATH ;
+.executable-suffix = "" ;
+
+
+# Return a list of the directories in the PATH. Yes, that information is (sort
+# of) available in the global module, but jam code can change those values, and
+# it isn't always clear what case/capitalization to use when looking. This rule
+# is a more reliable way to get there.
+rule executable-path ( )
+{
+    return [ string.words [ environ [ constant executable-path-variable ] ]
+        : [ constant path-separator ] ] ;
+}
+
+
+# Initialize the list of home directories for the current user depending on the
+# OS.
+if $(.name) = NT
+{
+    local home = [ environ HOMEDRIVE HOMEPATH ] ;
+    .home-directories = $(home[1])$(home[2]) [ environ HOME ] [ environ USERPROFILE ] ;
+}
+else
+{
+    .home-directories = [ environ HOME ] ;
+}
+
+
+# Can't use 'constant' mechanism because it only returns 1-element values.
+rule home-directories ( )
+{
+    return $(.home-directories) ;
+}
+
+
+# Return the string needed to represent the expansion of the named shell
+# variable.
+rule expand-variable ( variable )
+{
+    local prefix = [ constant expand-variable-prefix ] ;
+    local suffix = [ constant expand-variable-suffix ] ;
+    return $(prefix)$(variable)$(suffix) ;
+}
+
+
+# Returns true if running on windows, whether in cygwin or not.
+rule on-windows ( )
+{
+    local result ;
+    if [ modules.peek : NT ]
+    {
+        result = true ;
+    }
+    else if [ modules.peek : UNIX ]
+    {
+        switch [ modules.peek : JAMUNAME ]
+        {
+            case CYGWIN* :
+            {
+                result = true ;
+            }
+        }
+    }
+    return $(result) ;
+}
+
+
+if ! [ on-windows ]
+{
+    .on-unix = 1 ;
+}
+
+
+rule on-unix
+{
+    return $(.on-unix) ;
+}
+
+
+rule __test__
+{
+    import assert ;
+    if ! ( --quiet in [ modules.peek : ARGV ] )
+    {
+        ECHO os: name= [ name ] ;
+        ECHO os: version= [ version ] ;
+    }
+    assert.true name ;
+}
diff --git a/jam-files/boost-build/util/os_j.py b/jam-files/boost-build/util/os_j.py
new file mode 100644
index 00000000..f44cca62
--- /dev/null
+++ b/jam-files/boost-build/util/os_j.py
@@ -0,0 +1,19 @@
+# Status: stub, just enough to make tests work.
+#
+# Named os_j to avoid conflicts with standard 'os'. See
+# project.py:import for special-casing.
+#
+# Copyright 2001, 2002, 2003, 2005 Dave Abrahams
+# Copyright 2006 Rene Rivera
+# Copyright 2003, 2005 Vladimir Prus
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+import bjam
+
+__OS = bjam.call("peek", [], "OS")[0]
+
+# Return Jam's name of OS to prevent existing code from burning
+# when faced with Python naming
+def name():
+    return __OS
diff --git a/jam-files/boost-build/util/path.jam b/jam-files/boost-build/util/path.jam
new file mode 100644
index 00000000..ea26b816
--- /dev/null
+++ b/jam-files/boost-build/util/path.jam
@@ -0,0 +1,934 @@
+# Copyright Vladimir Prus 2002-2006.
+# Copyright Dave Abrahams 2003-2004.
+# Copyright Rene Rivera 2003-2006.
+#
+# Distributed under the Boost Software License, Version 1.0.
+#    (See accompanying file LICENSE_1_0.txt or copy at
+#          http://www.boost.org/LICENSE_1_0.txt)
+
+# Performs various path manipulations. Paths are always in a 'normalized'
+# representation. In it, a path may be either:
+#
+#     - '.', or
+#
+#     - ['/'] [ ( '..' '/' )* (token '/')* token ]
+#
+# In plain english, path can be rooted, '..' elements are allowed only at the
+# beginning, and it never ends in slash, except for path consisting of slash
+# only.
+
+import errors ;
+import modules ;
+import regex ;
+import sequence ;
+import set ;
+import version ;
+
+
+os = [ modules.peek : OS ] ;
+if [ modules.peek : UNIX ]
+{
+    local uname = [ modules.peek : JAMUNAME ] ;
+    switch $(uname)
+    {
+        case CYGWIN* : os = CYGWIN ;
+        case *       : os = UNIX ;
+    }
+}
+
+
+# Converts the native path into normalized form.
+#
+rule make ( native )
+{
+    return [ make-$(os) $(native) ] ;
+}
+
+
+# Builds native representation of the path.
+#
+rule native ( path )
+{
+    return [ native-$(os) $(path) ] ;
+}
+
+
+# Tests if a path is rooted.
+#
+rule is-rooted ( path )
+{
+    return [ MATCH "^(/)" : $(path) ] ;
+}
+
+
+# Tests if a path has a parent.
+#
+rule has-parent ( path )
+{
+    if $(path) != /
+    {
+        return 1 ;
+    }
+    else
+    {
+        return ;
+    }
+}
+
+
+# Returns the path without any directory components.
+#
+rule basename ( path )
+{
+    return [ MATCH "([^/]+)$" : $(path) ] ;
+}
+
+
+# Returns parent directory of the path. If no parent exists, error is issued.
+#
+rule parent ( path )
+{
+    if [ has-parent $(path) ]
+    {
+        if $(path) = .
+        {
+            return .. ;
+        }
+        else
+        {
+            # Strip everything at the end of path up to and including the last
+            # slash.
+            local result = [ regex.match "((.*)/)?([^/]+)" : $(path) : 2 3 ] ;
+
+            # Did we strip what we shouldn't?
+            if $(result[2]) = ".."
+            {
+                return $(path)/.. ;
+            }
+            else
+            {
+                if ! $(result[1])
+                {
+                    if [ is-rooted $(path) ]
+                    {
+                        result = / ;
+                    }
+                    else
+                    {
+                        result = . ;
+                    }
+                }
+                return $(result[1]) ;
+            }
+        }
+    }
+    else
+    {
+        errors.error "Path '$(path)' has no parent" ;
+    }
+}
+
+
+# Returns path2 such that "[ join path path2 ] = .". The path may not contain
+# ".." element or be rooted.
+#
+rule reverse ( path )
+{
+    if $(path) = .
+    {
+        return $(path) ;
+    }
+    else
+    {
+        local tokens = [ regex.split $(path) "/" ] ;
+        local tokens2 ;
+        for local i in $(tokens)
+        {
+            tokens2 += .. ;
+        }
+        return [ sequence.join $(tokens2) : "/" ] ;
+    }
+}
+
+
+# Concatenates the passed path elements. Generates an error if any element other
+# than the first one is rooted. Skips any empty or undefined path elements.
+#
+rule join ( elements + )
+{
+    if ! $(elements[2-])
+    {
+        return $(elements[1]) ;
+    }
+    else
+    {
+        for local e in $(elements[2-])
+        {
+            if [ is-rooted $(e) ]
+            {
+                errors.error only the first element may be rooted ;
+            }
+        }
+        if [ version.check-jam-version 3 1 17 ]
+        {
+            return [ NORMALIZE_PATH "$(elements)" ] ;
+        }
+        else
+        {
+            # Boost Jam prior to version 3.1.17 had problems with its
+            # NORMALIZE_PATH rule in case you passed it a leading backslash
+            # instead of a slash, in some cases when you sent it an empty
+            # initial path element and possibly some others. At least some of
+            # those cases were being hit and relied upon when calling this rule
+            # from the path.make-NT rule.
+            if ! $(elements[1]) && $(elements[2])
+            {
+                return [ NORMALIZE_PATH "/" "$(elements[2-])" ] ;
+            }
+            else
+            {
+                return [ NORMALIZE_PATH "$(elements)" ] ;
+            }
+        }
+    }
+}
+
+
+# If 'path' is relative, it is rooted at 'root'. Otherwise, it is unchanged.
+#
+rule root ( path root )
+{
+    if [ is-rooted $(path) ]
+    {
+        return $(path) ;
+    }
+    else
+    {
+        return [ join $(root) $(path) ] ;
+    }
+}
+
+
+# Returns the current working directory.
+#
+rule pwd ( )
+{
+    if ! $(.pwd)
+    {
+        .pwd = [ make [ PWD ] ] ;
+    }
+    return $(.pwd) ;
+}
+
+
+# Returns the list of files matching the given pattern in the specified
+# directory. Both directories and patterns are supplied as portable paths. Each
+# pattern should be non-absolute path, and can't contain "." or ".." elements.
+# Each slash separated element of pattern can contain the following special
+# characters:
+#   - '?', which match any character
+#   - '*', which matches arbitrary number of characters.
+# A file $(d)/e1/e2/e3 (where 'd' is in $(dirs)) matches pattern p1/p2/p3 if and
+# only if e1 matches p1, e2 matches p2 and so on.
+#
+# For example:
+#   [ glob . : *.cpp ]
+#   [ glob . : */build/Jamfile ]
+#
+rule glob ( dirs * : patterns + : exclude-patterns * )
+{
+    local result ;
+    local real-patterns ;
+    local real-exclude-patterns ;
+    for local d in $(dirs)
+    {
+        for local p in $(patterns)
+        {
+            local pattern = [ path.root $(p) $(d) ] ;
+            real-patterns += [ path.native $(pattern) ] ;
+        }
+
+        for local p in $(exclude-patterns)
+        {
+            local pattern = [ path.root $(p) $(d) ] ;
+            real-exclude-patterns += [ path.native $(pattern) ] ;
+        }
+    }
+
+    local inc = [ GLOB-RECURSIVELY $(real-patterns) ] ;
+    inc = [ sequence.transform NORMALIZE_PATH : $(inc) ] ;
+    local exc = [ GLOB-RECURSIVELY $(real-exclude-patterns) ] ;
+    exc = [ sequence.transform NORMALIZE_PATH : $(exc) ] ;
+
+    return [ sequence.transform path.make : [ set.difference $(inc) : $(exc) ] ]
+        ;
+}
+
+
+# Recursive version of GLOB. Builds the glob of files while also searching in
+# the subdirectories of the given roots. An optional set of exclusion patterns
+# will filter out the matching entries from the result. The exclusions also
+# apply to the subdirectory scanning, such that directories that match the
+# exclusion patterns will not be searched.
+#
+rule glob-tree ( roots * : patterns + : exclude-patterns * )
+{
+    return [ sequence.transform path.make : [ .glob-tree [ sequence.transform
+        path.native : $(roots) ] : $(patterns) : $(exclude-patterns) ] ] ;
+}
+
+
+local rule .glob-tree ( roots * : patterns * : exclude-patterns * )
+{
+    local excluded ;
+    if $(exclude-patterns)
+    {
+        excluded = [ GLOB $(roots) : $(exclude-patterns) ] ;
+    }
+    local result = [ set.difference [ GLOB $(roots) : $(patterns) ] :
+        $(excluded) ] ;
+    local subdirs ;
+    for local d in [ set.difference [ GLOB $(roots) : * ] : $(excluded) ]
+    {
+        if ! ( $(d:D=) in . .. ) && ! [ CHECK_IF_FILE $(d) ]
+        {
+            subdirs += $(d) ;
+        }
+    }
+    if $(subdirs)
+    {
+        result += [ .glob-tree $(subdirs) : $(patterns) : $(exclude-patterns) ]
+            ;
+    }
+    return $(result) ;
+}
+
+
+# Returns true is the specified file exists.
+#
+rule exists ( file )
+{
+    return [ path.glob $(file:D) : $(file:D=) ] ;
+}
+NATIVE_RULE path : exists ;
+
+
+# Find out the absolute name of path and returns the list of all the parents,
+# starting with the immediate one. Parents are returned as relative names. If
+# 'upper_limit' is specified, directories above it will be pruned.
+#
+rule all-parents ( path : upper_limit ? : cwd ? )
+{
+    cwd ?= [ pwd ] ;
+    local path_ele = [ regex.split [ root $(path) $(cwd) ] "/" ] ;
+
+    if ! $(upper_limit)
+    {
+        upper_limit = / ;
+    }
+    local upper_ele = [ regex.split [ root $(upper_limit) $(cwd) ] "/" ] ;
+
+    # Leave only elements in 'path_ele' below 'upper_ele'.
+    while $(path_ele) && ( $(upper_ele[1]) = $(path_ele[1]) )
+    {
+        upper_ele = $(upper_ele[2-]) ;
+        path_ele = $(path_ele[2-]) ;
+    }
+
+    # Have all upper elements been removed ?
+    if $(upper_ele)
+    {
+        errors.error "$(upper_limit) is not prefix of $(path)" ;
+    }
+    
+    # Create the relative paths to parents, number of elements in 'path_ele'.
+    local result ;
+    for local i in $(path_ele)
+    {
+        path = [ parent $(path) ] ;
+        result += $(path) ;
+    }
+    return $(result) ;
+}
+
+
+# Search for 'pattern' in parent directories of 'dir', up till and including
+# 'upper_limit', if it is specified, or till the filesystem root otherwise.
+#
+rule glob-in-parents ( dir : patterns + : upper-limit ? )
+{
+    local result ;
+    local parent-dirs = [ all-parents $(dir) : $(upper-limit) ] ;
+
+    while $(parent-dirs) && ! $(result)
+    {
+        result = [ glob $(parent-dirs[1]) : $(patterns) ] ;
+        parent-dirs = $(parent-dirs[2-]) ;
+    }
+    return $(result) ;
+}
+
+
+# Assuming 'child' is a subdirectory of 'parent', return the relative path from
+# 'parent' to 'child'.
+#
+rule relative ( child parent : no-error ? )
+{
+    local not-a-child ;
+    if $(parent) = "."
+    {
+        return $(child) ;
+    }
+    else
+    {
+        local split1 = [ regex.split $(parent) / ] ;
+        local split2 = [ regex.split $(child) / ] ;
+
+        while $(split1)
+        {
+            if $(split1[1]) = $(split2[1])
+            {
+                split1 = $(split1[2-]) ;
+                split2 = $(split2[2-]) ;
+            }
+            else
+            {
+                not-a-child = true ;
+                split1 = ;
+            }
+        }
+        if $(split2)
+        {
+            if $(not-a-child)
+            {
+                if $(no-error)
+                {
+                    return not-a-child ;
+                }
+                else
+                {
+                    errors.error $(child) is not a subdir of $(parent) ;
+                }                        
+            }
+            else
+            {
+                return [ join $(split2) ] ;    
+            }        
+        }
+        else
+        {
+            return "." ;
+        }
+    }
+}
+
+
+# Returns the minimal path to path2 that is relative path1.
+#
+rule relative-to ( path1 path2 )
+{
+    local root_1 = [ regex.split [ reverse $(path1) ] / ] ;
+    local split1 = [ regex.split $(path1) / ] ;
+    local split2 = [ regex.split $(path2) / ] ;
+
+    while $(split1) && $(root_1)
+    {
+        if $(split1[1]) = $(split2[1])
+        {
+            root_1 = $(root_1[2-]) ;
+            split1 = $(split1[2-]) ;
+            split2 = $(split2[2-]) ;
+        }
+        else
+        {
+            split1 = ;
+        }
+    }
+    return [ join . $(root_1) $(split2) ] ;
+}
+
+
+# Returns the list of paths which are used by the operating system for looking
+# up programs.
+#
+rule programs-path ( )
+{
+    local result ;
+    local raw = [ modules.peek : PATH Path path ] ;
+    for local p in $(raw)
+    {
+        if $(p)
+        {
+            result += [ path.make $(p) ] ;
+        }
+    }
+    return $(result) ;
+}
+
+rule makedirs ( path )
+{
+    local result = true ;
+    local native = [ native $(path) ] ;
+    if ! [ exists $(native) ]
+    {
+        if [ makedirs [ parent $(path) ] ]
+        {            
+            if ! [ MAKEDIR $(native) ]
+            {
+                errors.error "Could not create directory '$(path)'" ;
+                result = ;
+            }
+        }        
+    }    
+    return $(result) ;
+}
+
+# Converts native Windows paths into our internal canonic path representation.
+# Supports 'invalid' paths containing multiple successive path separator
+# characters.
+#
+# TODO: Check and if needed add support for Windows 'X:file' path format where
+# the file is located in the current folder on drive X.
+#
+rule make-NT ( native )
+{
+    local result ;
+
+    if [ version.check-jam-version 3 1 17 ]
+    {
+        result = [ NORMALIZE_PATH $(native) ] ;
+    }
+    else
+    {
+        # This old implementation is really fragile due to a not so clear way
+        # NORMALIZE_PATH rule worked in Boost.Jam versions prior to 3.1.17. E.g.
+        # path.join would mostly ignore empty path elements but would root the
+        # joined path in case the initial two path elements were empty or some
+        # similar accidental wierdness.
+        result = [ path.join [ regex.split $(native) "[/\\]" ] ] ;
+    }
+
+    # We need to add an extra '/' in front in case this is a rooted Windows path
+    # starting with a drive letter and not a path separator character since the
+    # builtin NORMALIZE_PATH rule has no knowledge of this leading drive letter
+    # and treats it as a regular folder name.
+    if [ regex.match "(^.:)" : $(native) ]
+    {
+        result = /$(result) ;
+    }
+
+    return $(result) ;
+}
+
+
+rule native-NT ( path )
+{
+    local result ;
+    if [ is-rooted $(path) ] && ! [ regex.match "^/(.:)" : $(path) ]
+    {
+        result = $(path) ;
+    }
+    else
+    {
+        result = [ MATCH "^/?(.*)" : $(path) ] ;
+    }
+    result = [ sequence.join [ regex.split $(result) "/" ] : "\\" ] ;
+    return $(result) ;
+}
+
+
+rule make-UNIX ( native )
+{
+    # VP: I have no idea now 'native' can be empty here! But it can!
+    if ! $(native)
+    {
+        errors.error "Empty path passed to 'make-UNIX'" ;
+    }
+    else
+    {
+        return [ NORMALIZE_PATH $(native:T) ] ;
+    }
+}
+
+
+rule native-UNIX ( path )
+{
+    return $(path) ;
+}
+
+
+rule make-CYGWIN ( path )
+{
+    return [ make-NT $(path) ] ;
+}
+
+
+rule native-CYGWIN ( path )
+{
+    local result = $(path) ;
+    if [ regex.match "(^/.:)" : $(path)  ]  # Windows absolute path.
+    {
+        result = [ MATCH "^/?(.*)" : $(path) ] ;  # Remove leading '/'.
+    }
+    return [ native-UNIX $(result) ] ;
+}
+
+
+# split-path-VMS: splits input native path into device dir file (each part is
+# optional).
+#
+# example:
+#
+# dev:[dir]file.c => dev: [dir] file.c
+#
+rule split-path-VMS ( native )
+{
+    local matches = [ MATCH ([a-zA-Z0-9_-]+:)?(\\[[^\]]*\\])?(.*)?$   : $(native) ] ;
+    local device = $(matches[1]) ;
+    local dir = $(matches[2]) ;
+    local file = $(matches[3]) ;
+
+    return $(device) $(dir) $(file) ;
+}
+
+
+# Converts a native VMS path into a portable path spec.
+#
+# Does not handle current-device absolute paths such as "[dir]File.c" as it is
+# not clear how to represent them in the portable path notation.
+#
+# Adds a trailing dot (".") to the file part if no extension is present (helps
+# when converting it back into native path).
+#
+rule make-VMS ( native )
+{
+    if [ MATCH ^(\\[[a-zA-Z0-9]) : $(native) ]
+    {
+        errors.error "Can't handle default-device absolute paths: " $(native) ;
+    }
+
+    local parts = [ split-path-VMS $(native) ] ;
+    local device = $(parts[1]) ;
+    local dir = $(parts[2]) ;
+    local file = $(parts[3]) ;
+    local elems ;
+
+    if $(device)
+    {
+        #
+        # rooted
+        #
+        elems = /$(device) ;
+    }
+
+    if $(dir) = "[]"
+    {
+        #
+        # Special case: current directory
+        #
+        elems = $(elems) "." ;
+    }
+    else if $(dir)
+    {
+        dir = [ regex.replace $(dir) "\\[|\\]" "" ] ;
+        local dir_parts = [ regex.split $(dir) \\. ]  ;
+
+        if $(dir_parts[1]) = ""
+        {
+            #
+            # Relative path
+            #
+            dir_parts = $(dir_parts[2--1]) ;
+        }
+
+        #
+        # replace "parent-directory" parts (- => ..)
+        #
+        dir_parts = [ regex.replace-list $(dir_parts) : - : .. ] ;
+
+        elems = $(elems) $(dir_parts) ;
+    }
+
+    if $(file)
+    {
+        if ! [ MATCH (\\.) : $(file) ]
+        {
+            #
+            # Always add "." to end of non-extension file.
+            #
+            file = $(file). ;
+        }
+        elems = $(elems) $(file) ;
+    }
+
+    local portable = [ path.join $(elems) ] ;
+
+    return $(portable) ;
+}
+
+
+# Converts a portable path spec into a native VMS path.
+#
+# Relies on having at least one dot (".") included in the file name to be able
+# to differentiate it from the directory part.
+#
+rule native-VMS ( path )
+{
+    local device = "" ;
+    local dir = $(path) ;
+    local file = "" ;
+    local native ;
+    local split ;
+
+    #
+    # Has device ?
+    #
+    if [ is-rooted $(dir) ]
+    {
+        split = [ MATCH ^/([^:]+:)/?(.*) : $(dir) ] ;
+        device = $(split[1]) ;
+        dir = $(split[2]) ;
+    }
+
+    #
+    # Has file ?
+    #
+    # This is no exact science, just guess work:
+    #
+    # If the last part of the current path spec
+    # includes some chars, followed by a dot,
+    # optionally followed by more chars -
+    # then it is a file (keep your fingers crossed).
+    #
+    split = [ regex.split $(dir) / ] ;
+    local maybe_file = $(split[-1]) ;
+
+    if [ MATCH ^([^.]+\\..*) : $(maybe_file) ]
+    {
+        file = $(maybe_file) ;
+        dir = [ sequence.join $(split[1--2]) : / ] ;
+    }
+
+    #
+    # Has dir spec ?
+    #
+    if $(dir) = "."
+    {
+        dir = "[]" ;
+    }
+    else if $(dir)
+    {
+        dir = [ regex.replace $(dir) \\.\\. - ] ;
+        dir = [ regex.replace $(dir) / . ] ;
+
+        if $(device) = ""
+        {
+            #
+            # Relative directory
+            #
+            dir = "."$(dir) ;
+        }
+        dir = "["$(dir)"]" ;
+    }
+
+    native = [ sequence.join $(device) $(dir) $(file) ] ;
+
+    return $(native) ;
+}
+
+
+rule __test__ ( )
+{
+    import assert ;
+    import errors : try catch ;
+
+    assert.true is-rooted "/" ;
+    assert.true is-rooted "/foo" ;
+    assert.true is-rooted "/foo/bar" ;
+    assert.result : is-rooted "." ;
+    assert.result : is-rooted "foo" ;
+    assert.result : is-rooted "foo/bar" ;
+
+    assert.true has-parent "foo" ;
+    assert.true has-parent "foo/bar" ;
+    assert.true has-parent "." ;
+    assert.result : has-parent "/" ;
+
+    assert.result "." : basename "." ;
+    assert.result ".." : basename ".." ;
+    assert.result "foo" : basename "foo" ;
+    assert.result "foo" : basename "bar/foo" ;
+    assert.result "foo" : basename "gaz/bar/foo" ;
+    assert.result "foo" : basename "/gaz/bar/foo" ;
+
+    assert.result "." : parent "foo" ;
+    assert.result "/" : parent "/foo" ;
+    assert.result "foo/bar" : parent "foo/bar/giz" ;
+    assert.result ".." : parent "." ;
+    assert.result ".." : parent "../foo" ;
+    assert.result "../../foo" : parent "../../foo/bar" ;
+
+    assert.result "." : reverse "." ;
+    assert.result ".." : reverse "foo" ;
+    assert.result "../../.." : reverse "foo/bar/giz" ;
+
+    assert.result "foo" : join "foo" ;
+    assert.result "/foo" : join "/" "foo" ;
+    assert.result "foo/bar" : join "foo" "bar" ;
+    assert.result "foo/bar" : join "foo/giz" "../bar" ;
+    assert.result "foo/giz" : join "foo/bar/baz" "../../giz" ;
+    assert.result ".." : join "." ".." ;
+    assert.result ".." : join "foo" "../.." ;
+    assert.result "../.." : join "../foo" "../.." ;
+    assert.result "/foo" : join "/bar" "../foo" ;
+    assert.result "foo/giz" : join "foo/giz" "." ;
+    assert.result "." : join lib2 ".." ;
+    assert.result "/" : join "/a" ".." ;
+
+    assert.result /a/b : join /a/b/c .. ;
+
+    assert.result "foo/bar/giz" : join "foo" "bar" "giz" ;
+    assert.result "giz" : join "foo" ".." "giz" ;
+    assert.result "foo/giz" : join "foo" "." "giz" ;
+
+    try ;
+    {
+        join "a" "/b" ;
+    }
+    catch only first element may be rooted ;
+
+    local CWD = "/home/ghost/build" ;
+    assert.result : all-parents . : . : $(CWD) ;
+    assert.result . .. ../.. ../../..  : all-parents "Jamfile" : "" : $(CWD) ;
+    assert.result foo . .. ../.. ../../.. : all-parents "foo/Jamfile" : "" : $(CWD) ;
+    assert.result ../Work .. ../.. ../../.. : all-parents "../Work/Jamfile" : "" : $(CWD) ;
+
+    local CWD = "/home/ghost" ;
+    assert.result . .. : all-parents "Jamfile" : "/home" : $(CWD) ;
+    assert.result . : all-parents "Jamfile" : "/home/ghost" : $(CWD) ;
+
+    assert.result "c/d" : relative "a/b/c/d" "a/b" ;
+    assert.result "foo" : relative "foo" "." ;
+
+    local save-os = [ modules.peek path : os ] ;
+    modules.poke path : os : NT ;
+
+    assert.result "foo/bar/giz" : make "foo/bar/giz" ;
+    assert.result "foo/bar/giz" : make "foo\\bar\\giz" ;
+    assert.result "foo" : make "foo/" ;
+    assert.result "foo" : make "foo\\" ;
+    assert.result "foo" : make "foo/." ;
+    assert.result "foo" : make "foo/bar/.." ;
+    assert.result "foo" : make "foo/bar/../" ;
+    assert.result "foo" : make "foo/bar/..\\" ;
+    assert.result "foo/bar" : make "foo/././././bar" ;
+    assert.result "/foo" : make "\\foo" ;
+    assert.result "/D:/My Documents" : make "D:\\My Documents" ;
+    assert.result "/c:/boost/tools/build/new/project.jam" : make "c:\\boost\\tools\\build\\test\\..\\new\\project.jam" ;
+    
+    #   Test processing 'invalid' paths containing multiple successive path
+    # separators.
+    assert.result "foo" : make "foo//" ;
+    assert.result "foo" : make "foo///" ;
+    assert.result "foo" : make "foo\\\\" ;
+    assert.result "foo" : make "foo\\\\\\" ;
+    assert.result "/foo" : make "//foo" ;
+    assert.result "/foo" : make "///foo" ;
+    assert.result "/foo" : make "\\\\foo" ;
+    assert.result "/foo" : make "\\\\\\foo" ;
+    assert.result "/foo" : make "\\/\\/foo" ;
+    assert.result "foo/bar" : make "foo//\\//\\\\bar//\\//\\\\\\//\\//\\\\" ;
+    assert.result "foo" : make "foo/bar//.." ;
+    assert.result "foo/bar" : make "foo/bar/giz//.." ;
+    assert.result "foo/giz" : make "foo//\\//\\\\bar///\\\\//\\\\////\\/..///giz\\//\\\\\\//\\//\\\\" ;
+    assert.result "../../../foo" : make "..///.//..///.//..////foo///" ;
+
+    #   Test processing 'invalid' rooted paths with too many '..' path elements
+    # that would place them before the root.
+    assert.result : make "/.." ;
+    assert.result : make "/../" ;
+    assert.result : make "/../." ;
+    assert.result : make "/.././" ;
+    assert.result : make "/foo/../bar/giz/.././././../../." ;
+    assert.result : make "/foo/../bar/giz/.././././../.././" ;
+    assert.result : make "//foo/../bar/giz/.././././../../." ;
+    assert.result : make "//foo/../bar/giz/.././././../.././" ;
+    assert.result : make "\\\\foo/../bar/giz/.././././../../." ;
+    assert.result : make "\\\\foo/../bar/giz/.././././../.././" ;
+    assert.result : make "/..///.//..///.//..////foo///" ;
+
+    assert.result "foo\\bar\\giz" : native "foo/bar/giz" ;
+    assert.result "foo" : native "foo" ;
+    assert.result "\\foo" : native "/foo" ;
+    assert.result "D:\\My Documents\\Work" : native "/D:/My Documents/Work" ;
+
+    modules.poke path : os : UNIX ;
+
+    assert.result "foo/bar/giz" : make "foo/bar/giz" ;
+    assert.result "/sub1" : make "/sub1/." ;
+    assert.result "/sub1" : make "/sub1/sub2/.." ;
+    assert.result "sub1" : make "sub1/." ;
+    assert.result "sub1" : make "sub1/sub2/.." ;
+    assert.result "/foo/bar" : native "/foo/bar" ;
+
+    modules.poke path : os : VMS ;
+
+    #
+    # Don't really need to poke os before these
+    #
+    assert.result "disk:" "[dir]"  "file" : split-path-VMS "disk:[dir]file" ;
+    assert.result "disk:" "[dir]"  ""     : split-path-VMS "disk:[dir]" ;
+    assert.result "disk:" ""       ""     : split-path-VMS "disk:" ;
+    assert.result "disk:" ""       "file" : split-path-VMS "disk:file" ;
+    assert.result ""      "[dir]"  "file" : split-path-VMS "[dir]file" ;
+    assert.result ""      "[dir]"  ""     : split-path-VMS "[dir]" ;
+    assert.result ""      ""       "file" : split-path-VMS "file" ;
+    assert.result ""      ""       ""     : split-path-VMS "" ;
+
+    #
+    # Special case: current directory
+    #
+    assert.result ""      "[]"     ""     : split-path-VMS "[]" ;
+    assert.result "disk:" "[]"     ""     : split-path-VMS "disk:[]" ;
+    assert.result ""      "[]"     "file" : split-path-VMS "[]file" ;
+    assert.result "disk:" "[]"     "file" : split-path-VMS "disk:[]file" ;
+
+    #
+    # Make portable paths
+    #
+    assert.result "/disk:" : make "disk:" ;
+    assert.result "foo/bar/giz" : make "[.foo.bar.giz]" ;
+    assert.result "foo" : make "[.foo]" ;
+    assert.result "foo" : make "[.foo.bar.-]" ;
+    assert.result ".." : make "[.-]" ;
+    assert.result ".." : make "[-]" ;
+    assert.result "." : make "[]" ;
+    assert.result "giz.h" : make "giz.h" ;
+    assert.result "foo/bar/giz.h" : make "[.foo.bar]giz.h" ;
+    assert.result "/disk:/my_docs" : make "disk:[my_docs]" ;
+    assert.result "/disk:/boost/tools/build/new/project.jam" : make "disk:[boost.tools.build.test.-.new]project.jam" ;
+
+    #
+    # Special case (adds '.' to end of file w/o extension to
+    # disambiguate from directory in portable path spec).
+    #
+    assert.result "Jamfile." : make "Jamfile" ;
+    assert.result "dir/Jamfile." : make "[.dir]Jamfile" ;
+    assert.result "/disk:/dir/Jamfile." : make "disk:[dir]Jamfile" ;
+
+    #
+    # Make native paths
+    #
+    assert.result "disk:" : native "/disk:" ;
+    assert.result "[.foo.bar.giz]" : native "foo/bar/giz" ;
+    assert.result "[.foo]" : native "foo" ;
+    assert.result "[.-]" : native ".." ;
+    assert.result "[.foo.-]" : native "foo/.." ;
+    assert.result "[]" : native "." ;
+    assert.result "disk:[my_docs.work]" : native "/disk:/my_docs/work" ;
+    assert.result "giz.h" : native "giz.h" ;
+    assert.result "disk:Jamfile." : native "/disk:Jamfile." ;
+    assert.result "disk:[my_docs.work]Jamfile." : native "/disk:/my_docs/work/Jamfile." ;
+
+    modules.poke path : os : $(save-os) ;
+}
diff --git a/jam-files/boost-build/util/path.py b/jam-files/boost-build/util/path.py
new file mode 100644
index 00000000..222b96bf
--- /dev/null
+++ b/jam-files/boost-build/util/path.py
@@ -0,0 +1,904 @@
+# Status: this module is ported on demand by however needs something
+# from it.  Functionality that is not needed by Python port will
+# be dropped.
+
+#  Copyright (C) Vladimir Prus 2002. Permission to copy, use, modify, sell and
+#  distribute this software is granted provided this copyright notice appears in
+#  all copies. This software is provided "as is" without express or implied
+#  warranty, and with no claim as to its suitability for any purpose.
+
+#  Performs various path manipulations. Path are always in a 'normilized' 
+#  representation. In it, a path may be either:
+#
+#     - '.', or
+#
+#     - ['/'] [ ( '..' '/' )*  (token '/')* token ]
+# 
+#   In plain english, path can be rooted, '..' elements are allowed only
+#   at the beginning, and it never ends in slash, except for path consisting
+#   of slash only.
+
+import os.path
+from utility import to_seq
+from glob import glob as builtin_glob
+
+from b2.util import bjam_signature
+
+@bjam_signature((["path", "root"],))
+def root (path, root):
+    """ If 'path' is relative, it is rooted at 'root'. Otherwise, it's unchanged.
+    """
+    if os.path.isabs (path):
+        return path
+    else:
+        return os.path.join (root, path)
+
+@bjam_signature((["native"],))
+def make (native):
+    """ Converts the native path into normalized form.
+    """
+    # TODO: make os selection here.
+    return make_UNIX (native)
+
+def make_UNIX (native):
+
+    # VP: I have no idea now 'native' can be empty here! But it can!
+    assert (native)
+
+    return os.path.normpath (native)
+
+@bjam_signature((["path"],))
+def native (path):
+    """ Builds a native representation of the path.
+    """
+    # TODO: make os selection here.
+    return native_UNIX (path)
+
+def native_UNIX (path):
+    return path
+
+
+def pwd ():
+    """ Returns the current working directory.
+        # TODO: is it a good idea to use the current dir? Some use-cases 
+                may not allow us to depend on the current dir.
+    """
+    return make (os.getcwd ())
+
+def is_rooted (path):
+    """ Tests if a path is rooted.
+    """
+    return path and path [0] == '/'
+
+
+###################################################################
+# Still to port.
+# Original lines are prefixed with "#   "
+#
+#   #  Copyright (C) Vladimir Prus 2002. Permission to copy, use, modify, sell and
+#   #  distribute this software is granted provided this copyright notice appears in
+#   #  all copies. This software is provided "as is" without express or implied
+#   #  warranty, and with no claim as to its suitability for any purpose.
+#   
+#   #  Performs various path manipulations. Path are always in a 'normilized' 
+#   #  representation. In it, a path may be either:
+#   #
+#   #     - '.', or
+#   #
+#   #     - ['/'] [ ( '..' '/' )*  (token '/')* token ]
+#   # 
+#   #   In plain english, path can be rooted, '..' elements are allowed only
+#   #   at the beginning, and it never ends in slash, except for path consisting
+#   #   of slash only.
+#   
+#   import modules ;
+#   import sequence ;
+#   import regex ;
+#   import errors : error ;
+#   
+#   
+#   os = [ modules.peek : OS ] ;
+#   if [ modules.peek : UNIX ] 
+#   {    
+#       local uname = [ modules.peek : JAMUNAME ] ;
+#       switch $(uname)
+#       {
+#           case CYGWIN* :
+#             os = CYGWIN ;
+#           
+#           case * :
+#             os = UNIX ;
+#       }        
+#   }
+#   
+#   #
+#   #    Tests if a path is rooted.
+#   #
+#   rule is-rooted ( path )
+#   {
+#       return [ MATCH "^(/)" : $(path) ] ;
+#   }
+#   
+#   #
+#   #    Tests if a path has a parent.
+#   #
+#   rule has-parent ( path )
+#   {
+#       if $(path) != / {
+#           return 1 ;
+#       } else {
+#           return ;
+#       }
+#   }
+#   
+#   #
+#   #    Returns the path without any directory components.
+#   #
+#   rule basename ( path )
+#   {
+#       return [ MATCH "([^/]+)$" : $(path) ] ;
+#   }
+#   
+#   #
+#   #    Returns parent directory of the path. If no parent exists, error is issued.
+#   #
+#   rule parent ( path )
+#   {
+#       if [ has-parent $(path) ] {
+#   
+#           if $(path) = . {
+#               return .. ;
+#           } else {
+#   
+#               # Strip everything at the end of path up to and including
+#               # the last slash
+#               local result = [ regex.match "((.*)/)?([^/]+)" : $(path) : 2 3 ] ;
+#   
+#               # Did we strip what we shouldn't?
+#               if $(result[2]) = ".." {
+#                   return $(path)/.. ;
+#               } else {
+#                   if ! $(result[1]) {
+#                       if [ is-rooted $(path) ] {
+#                           result = / ;
+#                       } else {
+#                           result = . ;
+#                       }
+#                   }
+#                   return $(result[1]) ;
+#               }
+#           }
+#       } else {
+#           error "Path '$(path)' has no parent" ;
+#       }
+#   }
+#   
+#   #
+#   #    Returns path2 such that "[ join path path2 ] = .".
+#   #    The path may not contain ".." element or be rooted.
+#   #
+#   rule reverse ( path )
+#   {
+#       if $(path) = .
+#       {
+#           return $(path) ;
+#       }
+#       else
+#       {
+#           local tokens = [ regex.split $(path) "/" ] ;
+#           local tokens2 ;
+#           for local i in $(tokens) {
+#               tokens2 += .. ;
+#           }
+#           return [ sequence.join $(tokens2) : "/" ] ;
+#       }
+#   }
+#   
+#   #
+#   # Auxillary rule: does all the semantic of 'join', except for error cheching.
+#   # The error checking is separated because this rule is recursive, and I don't
+#   # like the idea of checking the same input over and over.
+#   #
+#   local rule join-imp ( elements + )
+#   {
+#       return [ NORMALIZE_PATH $(elements:J="/") ] ;
+#   }
+#   
+#   #
+#   #    Contanenates the passed path elements. Generates an error if
+#   #    any element other than the first one is rooted.
+#   #
+#   rule join ( elements + )
+#   {
+#       if ! $(elements[2]) 
+#       {
+#           return $(elements[1]) ;
+#       }
+#       else
+#       {        
+#           for local e in $(elements[2-])
+#           {
+#               if [ is-rooted $(e) ]
+#               {
+#                   error only first element may be rooted ;
+#               }
+#           }
+#           return [ join-imp $(elements) ] ;
+#       }    
+#   }
+
+
+def glob (dirs, patterns):
+    """ Returns the list of files matching the given pattern in the
+    specified directory.  Both directories and patterns are 
+    supplied as portable paths. Each pattern should be non-absolute
+    path, and can't contain "." or ".." elements. Each slash separated
+    element of pattern can contain the following special characters:
+    -  '?', which match any character
+    -  '*', which matches arbitrary number of characters.
+    A file $(d)/e1/e2/e3 (where 'd' is in $(dirs)) matches pattern p1/p2/p3
+    if and only if e1 matches p1, e2 matches p2 and so on.
+    
+    For example: 
+        [ glob . : *.cpp ] 
+        [ glob . : */build/Jamfile ] 
+    """
+#   {
+#       local result ;
+#       if $(patterns:D)
+#       {
+#           # When a pattern has a directory element, we first glob for
+#           # directory, and then glob for file name is the found directories.
+#           for local p in $(patterns)
+#           {
+#               # First glob for directory part.
+#               local globbed-dirs = [ glob $(dirs) : $(p:D) ] ;
+#               result += [ glob $(globbed-dirs) : $(p:D="") ] ;
+#           }        
+#       }
+#       else
+#       {        
+#           # When a pattern has not directory, we glob directly.
+#           # Take care of special ".." value. The "GLOB" rule simply ignores
+#           # the ".." element (and ".") element in directory listings. This is
+#           # needed so that 
+#           #
+#           #    [ glob libs/*/Jamfile ]
+#           #
+#           # don't return 
+#           #
+#           #    libs/../Jamfile (which is the same as ./Jamfile)
+#           #
+#           # On the other hand, when ".." is explicitly present in the pattern
+#           # we need to return it.
+#           # 
+#           for local dir in $(dirs)
+#           {
+#               for local p in $(patterns)
+#               {                
+#                   if $(p) != ".."
+#                   {                
+#                       result += [ sequence.transform make 
+#                           : [ GLOB [ native $(dir) ] : $(p) ] ] ;
+#                   }            
+#                   else
+#                   {
+#                       result += [ path.join $(dir) .. ] ;
+#                   }            
+#               }            
+#           }
+#       }    
+#       return $(result) ;
+#   }
+#   
+
+# TODO: (PF) I replaced the code above by this. I think it should work but needs to be tested.
+    result = []
+    dirs = to_seq (dirs)
+    patterns = to_seq (patterns)
+
+    splitdirs = []
+    for dir in dirs:
+        splitdirs += dir.split (os.pathsep)
+
+    for dir in splitdirs:
+        for pattern in patterns:
+            p = os.path.join (dir, pattern)
+            import glob
+            result.extend (glob.glob (p))
+    return result
+    
+#
+#   Find out the absolute name of path and returns the list of all the parents,
+#   starting with the immediate one. Parents are returned as relative names.
+#   If 'upper_limit' is specified, directories above it will be pruned.
+#
+def all_parents(path, upper_limit=None, cwd=None):
+
+    if not cwd:
+        cwd = os.getcwd()
+
+    path_abs = os.path.join(cwd, path)
+
+    if upper_limit:
+        upper_limit = os.path.join(cwd, upper_limit)
+
+    result = []
+    while path_abs and path_abs != upper_limit:
+        (head, tail) = os.path.split(path)
+        path = os.path.join(path, "..")        
+        result.append(path)
+        path_abs = head
+
+    if upper_limit and path_abs != upper_limit:
+        raise BaseException("'%s' is not a prefix of '%s'" % (upper_limit, path))
+
+    return result
+    
+#  Search for 'pattern' in parent directories of 'dir', up till and including
+#  'upper_limit', if it is specified, or till the filesystem root otherwise.
+#
+def glob_in_parents(dir, patterns, upper_limit=None):
+
+    result = []
+    parent_dirs = all_parents(dir, upper_limit)
+
+    for p in parent_dirs:
+        result = glob(p, patterns)
+        if result: break
+
+    return result
+
+#   
+#   #
+#   # Assuming 'child' is a subdirectory of 'parent', return the relative
+#   # path from 'parent' to 'child'
+#   #
+#   rule relative ( child parent )
+#   {
+#       if $(parent) = "." 
+#       {
+#           return $(child) ;
+#       }
+#       else 
+#       {       
+#           local split1 = [ regex.split $(parent) / ] ;
+#           local split2 = [ regex.split $(child) / ] ;
+#       
+#           while $(split1)
+#           {
+#               if $(split1[1]) = $(split2[1])
+#               {
+#                   split1 = $(split1[2-]) ;
+#                   split2 = $(split2[2-]) ;
+#               }
+#               else
+#               {
+#                   errors.error $(child) is not a subdir of $(parent) ;
+#               }                
+#           }    
+#           return [ join $(split2) ] ;    
+#       }    
+#   }
+#   
+#   # Returns the minimal path to path2 that is relative path1.
+#   #
+#   rule relative-to ( path1 path2 )
+#   {
+#       local root_1 = [ regex.split [ reverse $(path1) ] / ] ;
+#       local split1 = [ regex.split $(path1) / ] ;
+#       local split2 = [ regex.split $(path2) / ] ;
+#   
+#       while $(split1) && $(root_1)
+#       {
+#           if $(split1[1]) = $(split2[1])
+#           {
+#               root_1 = $(root_1[2-]) ;
+#               split1 = $(split1[2-]) ;
+#               split2 = $(split2[2-]) ;
+#           }
+#           else
+#           {
+#               split1 = ;
+#           }
+#       }
+#       return [ join . $(root_1) $(split2) ] ;
+#   }
+
+# Returns the list of paths which are used by the operating system
+# for looking up programs
+def programs_path ():
+    raw = []
+    names = ['PATH', 'Path', 'path']
+    
+    for name in names:
+        raw.append(os.environ.get (name, ''))
+    
+    result = []
+    for elem in raw:
+        if elem:
+            for p in elem.split(os.path.pathsep):
+                result.append(make(p))
+
+    return result
+
+#   rule make-NT ( native )
+#   {
+#       local tokens = [ regex.split $(native) "[/\\]" ] ;
+#       local result ;
+#   
+#       # Handle paths ending with slashes
+#       if $(tokens[-1]) = ""
+#       {
+#           tokens = $(tokens[1--2]) ; # discard the empty element
+#       }
+#   
+#       result = [ path.join $(tokens) ] ;
+#   
+#       if [ regex.match "(^.:)" : $(native)  ]
+#       {
+#           result = /$(result) ;
+#       }
+#       
+#       if $(native) = ""
+#       {
+#           result = "." ;
+#       }
+#           
+#       return $(result) ;
+#   }
+#   
+#   rule native-NT ( path )
+#   {
+#       local result = [ MATCH "^/?(.*)" : $(path) ] ;
+#       result = [ sequence.join [ regex.split $(result) "/" ] : "\\" ] ;
+#       return $(result) ;
+#   }
+#   
+#   rule make-CYGWIN ( path )
+#   {
+#       return [ make-NT $(path) ] ;
+#   }
+#   
+#   rule native-CYGWIN ( path )
+#   {
+#       local result = $(path) ;
+#       if [ regex.match "(^/.:)" : $(path)  ] # win absolute
+#       {
+#           result = [ MATCH "^/?(.*)" : $(path) ] ; # remove leading '/'
+#       }
+#       return [ native-UNIX $(result) ] ;
+#   }
+#   
+#   #
+#   # split-VMS: splits input native path into
+#   # device dir file (each part is optional),
+#   # example:
+#   #
+#   # dev:[dir]file.c => dev: [dir] file.c
+#   #
+#   rule split-path-VMS ( native )
+#   {
+#       local matches = [ MATCH ([a-zA-Z0-9_-]+:)?(\\[[^\]]*\\])?(.*)?$   : $(native) ] ;
+#       local device = $(matches[1]) ;
+#       local dir = $(matches[2]) ;
+#       local file = $(matches[3]) ;
+#   
+#       return $(device) $(dir) $(file) ;
+#   }
+#   
+#   #
+#   # Converts a native VMS path into a portable path spec.
+#   #
+#   # Does not handle current-device absolute paths such
+#   # as "[dir]File.c" as it is not clear how to represent
+#   # them in the portable path notation.
+#   #
+#   # Adds a trailing dot (".") to the file part if no extension
+#   # is present (helps when converting it back into native path).
+#   #
+#   rule make-VMS ( native )
+#   {
+#       if [ MATCH ^(\\[[a-zA-Z0-9]) : $(native) ]
+#       {
+#           errors.error "Can't handle default-device absolute paths: " $(native) ;
+#       }
+#           
+#       local parts = [ split-path-VMS $(native) ] ;
+#       local device = $(parts[1]) ;
+#       local dir = $(parts[2]) ;
+#       local file = $(parts[3]) ;
+#       local elems ;
+#       
+#       if $(device)
+#       {
+#           #
+#           # rooted
+#           #
+#           elems = /$(device) ;
+#       }
+#       
+#       if $(dir) = "[]"
+#       {
+#           #
+#           # Special case: current directory
+#           #
+#           elems = $(elems) "." ;
+#       }
+#       else if $(dir)
+#       {
+#           dir = [ regex.replace $(dir) "\\[|\\]" "" ] ;
+#           local dir_parts = [ regex.split $(dir) \\. ]  ;
+#       
+#           if $(dir_parts[1]) = ""
+#           {
+#               #
+#               # Relative path
+#               #
+#               dir_parts = $(dir_parts[2--1]) ;
+#           }
+#           
+#           #
+#           # replace "parent-directory" parts (- => ..)
+#           #
+#           dir_parts = [ regex.replace-list $(dir_parts) : - : .. ] ;
+#           
+#           elems = $(elems) $(dir_parts) ;
+#       }
+#       
+#       if $(file)
+#       {
+#           if ! [ MATCH (\\.) : $(file) ]
+#           {
+#               #
+#               # Always add "." to end of non-extension file
+#               #
+#               file = $(file). ;
+#           }
+#           elems = $(elems) $(file) ;
+#       }
+#   
+#       local portable = [ path.join $(elems) ] ;
+#   
+#       return $(portable) ;
+#   }
+#   
+#   #
+#   # Converts a portable path spec into a native VMS path.
+#   #
+#   # Relies on having at least one dot (".") included in the file
+#   # name to be able to differentiate it ftom the directory part.
+#   #
+#   rule native-VMS ( path )
+#   {
+#       local device = "" ;
+#       local dir = $(path) ;
+#       local file = "" ;
+#       local native ;
+#       local split ;
+#   
+#       #
+#       # Has device ?
+#       #
+#       if [ is-rooted $(dir) ]
+#       {
+#           split = [ MATCH ^/([^:]+:)/?(.*) : $(dir) ] ;
+#           device = $(split[1]) ;
+#           dir = $(split[2]) ;
+#       }
+#   
+#       #
+#       # Has file ?
+#       #
+#       # This is no exact science, just guess work:
+#       #
+#       # If the last part of the current path spec
+#       # includes some chars, followed by a dot,
+#       # optionally followed by more chars -
+#       # then it is a file (keep your fingers crossed).
+#       #
+#       split = [ regex.split $(dir) / ] ;
+#       local maybe_file = $(split[-1]) ;
+#   
+#       if [ MATCH ^([^.]+\\..*) : $(maybe_file) ]
+#       {
+#           file = $(maybe_file) ;
+#           dir = [ sequence.join $(split[1--2]) : / ] ;
+#       }
+#       
+#       #
+#       # Has dir spec ?
+#       #
+#       if $(dir) = "."
+#       {
+#           dir = "[]" ;
+#       }
+#       else if $(dir)
+#       {
+#           dir = [ regex.replace $(dir) \\.\\. - ] ;
+#           dir = [ regex.replace $(dir) / . ] ;
+#   
+#           if $(device) = ""
+#           {
+#               #
+#               # Relative directory
+#               # 
+#               dir = "."$(dir) ;
+#           }
+#           dir = "["$(dir)"]" ;
+#       }
+#       
+#       native = [ sequence.join $(device) $(dir) $(file) ] ;
+#   
+#       return $(native) ;
+#   }
+#   
+#   
+#   rule __test__ ( ) {
+#   
+#       import assert ;
+#       import errors : try catch ;
+#   
+#       assert.true is-rooted "/" ;
+#       assert.true is-rooted "/foo" ;
+#       assert.true is-rooted "/foo/bar" ;
+#       assert.result : is-rooted "." ;
+#       assert.result : is-rooted "foo" ;
+#       assert.result : is-rooted "foo/bar" ;
+#   
+#       assert.true has-parent "foo" ;
+#       assert.true has-parent "foo/bar" ;
+#       assert.true has-parent "." ;
+#       assert.result : has-parent "/" ;
+#   
+#       assert.result "." : basename "." ;
+#       assert.result ".." : basename ".." ;
+#       assert.result "foo" : basename "foo" ;
+#       assert.result "foo" : basename "bar/foo" ;
+#       assert.result "foo" : basename "gaz/bar/foo" ;
+#       assert.result "foo" : basename "/gaz/bar/foo" ;
+#   
+#       assert.result "." : parent "foo" ;
+#       assert.result "/" : parent "/foo" ;
+#       assert.result "foo/bar" : parent "foo/bar/giz" ;
+#       assert.result ".." : parent "." ;
+#       assert.result ".." : parent "../foo" ;
+#       assert.result "../../foo" : parent "../../foo/bar" ;
+#   
+#   
+#       assert.result "." : reverse "." ;
+#       assert.result ".." : reverse "foo" ;
+#       assert.result "../../.." : reverse "foo/bar/giz" ;
+#   
+#       assert.result "foo" : join "foo" ;
+#       assert.result "/foo" : join "/" "foo" ;
+#       assert.result "foo/bar" : join "foo" "bar" ;
+#       assert.result "foo/bar" : join "foo/giz" "../bar" ;
+#       assert.result "foo/giz" : join "foo/bar/baz" "../../giz" ;
+#       assert.result ".." : join "." ".." ;
+#       assert.result ".." : join "foo" "../.." ;
+#       assert.result "../.." : join "../foo" "../.." ;
+#       assert.result "/foo" : join "/bar" "../foo" ;
+#       assert.result "foo/giz" : join "foo/giz" "." ;
+#       assert.result "." : join lib2 ".." ;
+#       assert.result "/" : join "/a" ".." ;
+#   
+#       assert.result /a/b : join /a/b/c .. ;
+#   
+#       assert.result "foo/bar/giz" : join "foo" "bar" "giz" ;
+#       assert.result "giz" : join "foo" ".." "giz" ;
+#       assert.result "foo/giz" : join "foo" "." "giz" ;
+#   
+#       try ;
+#       {
+#           join "a" "/b" ;
+#       }
+#       catch only first element may be rooted ;
+#   
+#       local CWD = "/home/ghost/build" ;
+#       assert.result : all-parents . : . : $(CWD) ;
+#       assert.result . .. ../.. ../../..  : all-parents "Jamfile" : "" : $(CWD) ;
+#       assert.result foo . .. ../.. ../../.. : all-parents "foo/Jamfile" : "" : $(CWD) ;
+#       assert.result ../Work .. ../.. ../../.. : all-parents "../Work/Jamfile" : "" : $(CWD) ;
+#   
+#       local CWD = "/home/ghost" ;
+#       assert.result . .. : all-parents "Jamfile" : "/home" : $(CWD) ;
+#       assert.result . : all-parents "Jamfile" : "/home/ghost" : $(CWD) ;
+#       
+#       assert.result "c/d" : relative "a/b/c/d" "a/b" ;
+#       assert.result "foo" : relative "foo" "." ;
+#   
+#       local save-os = [ modules.peek path : os ] ;
+#       modules.poke path : os : NT ;
+#   
+#       assert.result "foo/bar/giz" : make "foo/bar/giz" ;
+#       assert.result "foo/bar/giz" : make "foo\\bar\\giz" ;
+#       assert.result "foo" : make "foo/." ;
+#       assert.result "foo" : make "foo/bar/.." ;
+#       assert.result "/D:/My Documents" : make "D:\\My Documents" ;
+#       assert.result "/c:/boost/tools/build/new/project.jam" : make "c:\\boost\\tools\\build\\test\\..\\new\\project.jam" ;
+#   
+#       assert.result "foo\\bar\\giz" : native "foo/bar/giz" ;
+#       assert.result "foo" : native "foo" ;
+#       assert.result "D:\\My Documents\\Work" : native "/D:/My Documents/Work" ;
+#   
+#       modules.poke path : os : UNIX ;
+#   
+#       assert.result "foo/bar/giz" : make "foo/bar/giz" ;
+#       assert.result "/sub1" : make "/sub1/." ;
+#       assert.result "/sub1" : make "/sub1/sub2/.." ;    
+#       assert.result "sub1" : make "sub1/." ;
+#       assert.result "sub1" : make "sub1/sub2/.." ;
+#       assert.result "/foo/bar" : native "/foo/bar" ;
+#   
+#       modules.poke path : os : VMS ;
+#   
+#       #
+#       # Don't really need to poke os before these
+#       #
+#       assert.result "disk:" "[dir]"  "file" : split-path-VMS "disk:[dir]file" ;
+#       assert.result "disk:" "[dir]"  ""     : split-path-VMS "disk:[dir]" ;
+#       assert.result "disk:" ""     ""       : split-path-VMS "disk:" ;
+#       assert.result "disk:" ""     "file"   : split-path-VMS "disk:file" ;
+#       assert.result ""      "[dir]"  "file" : split-path-VMS "[dir]file" ;
+#       assert.result ""      "[dir]"  ""     : split-path-VMS "[dir]" ;
+#       assert.result ""      ""     "file"   : split-path-VMS "file" ;
+#       assert.result ""      ""     ""       : split-path-VMS "" ;
+#   
+#       #
+#       # Special case: current directory
+#       #
+#       assert.result ""      "[]"     ""     : split-path-VMS "[]" ;
+#       assert.result "disk:" "[]"     ""     : split-path-VMS "disk:[]" ;
+#       assert.result ""      "[]"     "file" : split-path-VMS "[]file" ;
+#       assert.result "disk:" "[]"     "file" : split-path-VMS "disk:[]file" ;
+#   
+#       #
+#       # Make portable paths
+#       #
+#       assert.result "/disk:" : make "disk:" ;
+#       assert.result "foo/bar/giz" : make "[.foo.bar.giz]" ;
+#       assert.result "foo" : make "[.foo]" ;
+#       assert.result "foo" : make "[.foo.bar.-]" ;
+#       assert.result ".." : make "[.-]" ;
+#       assert.result ".." : make "[-]" ;
+#       assert.result "." : make "[]" ;
+#       assert.result "giz.h" : make "giz.h" ;
+#       assert.result "foo/bar/giz.h" : make "[.foo.bar]giz.h" ;
+#       assert.result "/disk:/my_docs" : make "disk:[my_docs]" ;
+#       assert.result "/disk:/boost/tools/build/new/project.jam" : make "disk:[boost.tools.build.test.-.new]project.jam" ;
+#   
+#       #
+#       # Special case (adds '.' to end of file w/o extension to
+#       # disambiguate from directory in portable path spec).
+#       #
+#       assert.result "Jamfile." : make "Jamfile" ;
+#       assert.result "dir/Jamfile." : make "[.dir]Jamfile" ;
+#       assert.result "/disk:/dir/Jamfile." : make "disk:[dir]Jamfile" ;
+#   
+#       #
+#       # Make native paths
+#       #
+#       assert.result "disk:" : native "/disk:" ;
+#       assert.result "[.foo.bar.giz]" : native "foo/bar/giz" ;
+#       assert.result "[.foo]" : native "foo" ;
+#       assert.result "[.-]" : native ".." ;
+#       assert.result "[.foo.-]" : native "foo/.." ;
+#       assert.result "[]" : native "." ;
+#       assert.result "disk:[my_docs.work]" : native "/disk:/my_docs/work" ;
+#       assert.result "giz.h" : native "giz.h" ;
+#       assert.result "disk:Jamfile." : native "/disk:Jamfile." ;
+#       assert.result "disk:[my_docs.work]Jamfile." : native "/disk:/my_docs/work/Jamfile." ;
+#   
+#       modules.poke path : os : $(save-os) ;
+#   
+#   }
+
+#
+
+
+#def glob(dir, patterns):
+#    result = []
+#    for pattern in patterns:
+#        result.extend(builtin_glob(os.path.join(dir, pattern)))
+#    return result
+
+def glob(dirs, patterns, exclude_patterns=None):
+    """Returns the list of files matching the given pattern in the
+    specified directory.  Both directories and patterns are 
+    supplied as portable paths. Each pattern should be non-absolute
+    path, and can't contain '.' or '..' elements. Each slash separated
+    element of pattern can contain the following special characters:
+    -  '?', which match any character
+    -  '*', which matches arbitrary number of characters.
+    A file $(d)/e1/e2/e3 (where 'd' is in $(dirs)) matches pattern p1/p2/p3
+    if and only if e1 matches p1, e2 matches p2 and so on.
+    For example: 
+        [ glob . : *.cpp ] 
+        [ glob . : */build/Jamfile ]
+    """
+
+    assert(isinstance(patterns, list))
+    assert(isinstance(dirs, list))
+
+    if not exclude_patterns:
+        exclude_patterns = []
+    else:
+       assert(isinstance(exclude_patterns, list))
+
+    real_patterns = [os.path.join(d, p) for p in patterns for d in dirs]    
+    real_exclude_patterns = [os.path.join(d, p) for p in exclude_patterns
+                             for d in dirs]
+
+    inc = [os.path.normpath(name) for p in real_patterns
+           for name in builtin_glob(p)]
+    exc = [os.path.normpath(name) for p in real_exclude_patterns
+           for name in builtin_glob(p)]
+    return [x for x in inc if x not in exc]
+
+def glob_tree(roots, patterns, exclude_patterns=None):
+    """Recursive version of GLOB. Builds the glob of files while
+    also searching in the subdirectories of the given roots. An
+    optional set of exclusion patterns will filter out the
+    matching entries from the result. The exclusions also apply
+    to the subdirectory scanning, such that directories that
+    match the exclusion patterns will not be searched."""
+
+    if not exclude_patterns:
+        exclude_patterns = []
+
+    result = glob(roots, patterns, exclude_patterns)
+    subdirs = [s for s in glob(roots, ["*"]) if s != "." and s != ".." and os.path.isdir(s)]
+    if subdirs:
+        result.extend(glob_tree(subdirs, patterns, exclude_patterns))
+        
+    return result
+
+def glob_in_parents(dir, patterns, upper_limit=None):
+    """Recursive version of GLOB which glob sall parent directories
+    of dir until the first match is found. Returns an empty result if no match
+    is found"""    
+    
+    assert(isinstance(dir, str))
+    assert(isinstance(patterns, list))
+
+    result = []
+
+    absolute_dir = os.path.join(os.getcwd(), dir)
+    absolute_dir = os.path.normpath(absolute_dir)
+    while absolute_dir:
+        new_dir = os.path.split(absolute_dir)[0]
+        if new_dir == absolute_dir:
+            break
+        result = glob([new_dir], patterns)
+        if result:
+            break
+        absolute_dir = new_dir
+
+    return result
+
+
+# The relpath functionality is written by
+# Cimarron Taylor
+def split(p, rest=[]):
+    (h,t) = os.path.split(p)
+    if len(h) < 1: return [t]+rest
+    if len(t) < 1: return [h]+rest
+    return split(h,[t]+rest)
+
+def commonpath(l1, l2, common=[]):
+    if len(l1) < 1: return (common, l1, l2)
+    if len(l2) < 1: return (common, l1, l2)
+    if l1[0] != l2[0]: return (common, l1, l2)
+    return commonpath(l1[1:], l2[1:], common+[l1[0]])
+
+def relpath(p1, p2):
+    (common,l1,l2) = commonpath(split(p1), split(p2))
+    p = []
+    if len(l1) > 0:
+        p = [ '../' * len(l1) ]
+    p = p + l2
+    if p:
+        return os.path.join( *p )
+    else:
+        return "."
diff --git a/jam-files/boost-build/util/print.jam b/jam-files/boost-build/util/print.jam
new file mode 100644
index 00000000..708d21ab
--- /dev/null
+++ b/jam-files/boost-build/util/print.jam
@@ -0,0 +1,488 @@
+# Copyright 2003 Douglas Gregor 
+# Copyright 2002, 2003, 2005 Rene Rivera 
+# Copyright 2002, 2003, 2004, 2005 Vladimir Prus 
+# Distributed under the Boost Software License, Version 1.0. 
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) 
+
+# Utilities for generating format independent output. Using these
+# will help in generation of documentation in at minimum plain/console
+# and html.
+
+import modules ;
+import numbers ;
+import string ;
+import regex ;
+import "class" ;
+import scanner ;
+import path ;
+
+# The current output target. Defaults to console.
+output-target = console ;
+
+# The current output type. Defaults to plain. Other possible values are "html".
+output-type = plain ;
+
+# Whitespace.
+.whitespace = [ string.whitespace ] ;
+
+
+# Set the target and type of output to generate. This sets both the destination
+# output and the type of docs to generate to that output. The target can be
+# either a file or "console" for echoing to the console. If the type of output
+# is not specified it defaults to plain text.
+#
+rule output (
+    target  # The target file or device; file or "console".
+    type ?  # The type of output; "plain" or "html".
+)
+{
+    type ?= plain ;
+    if $(output-target) != $(target)
+    {
+        output-target = $(target) ;
+        output-type = $(type) ;
+        if $(output-type) = html
+        {
+            text
+                "<!DOCTYPE html PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">"
+                "<html>"
+                "<head>"
+                "</head>"
+                "<body link=\"#0000ff\" vlink=\"#800080\">"
+                : true
+                : prefix ;
+            text
+                "</body>"
+                "</html>"
+                :
+                : suffix ;
+        }
+    }
+}
+
+
+# Generate a section with a description. The type of output can be controlled by
+# the value of the 'output-type' variable.
+#
+rule section (
+    name  # The name of the section.
+    description *  # A number of description lines.
+)
+{
+    if $(output-type) = plain
+    {
+        lines [ split-at-words $(name): ] ;
+        lines ;
+    }
+    else if $(output-type) = html
+    {
+        name = [ escape-html $(name) ] ;
+        text <h3>$(name)</h3> <p> ;
+    }
+    local pre = ;
+    while $(description)
+    {
+        local paragraph = ;
+        while $(description) && [ string.is-whitespace $(description[1]) ] { description = $(description[2-]) ; }
+        if $(pre)
+        {
+            while $(description) && (
+                $(pre) = " $(description[1])" ||
+                ( $(pre) < [ string.chars [ MATCH "^([$(.whitespace)]*)" : " $(description[1])" ] ] )
+                )
+                { paragraph += $(description[1]) ; description = $(description[2-]) ; }
+            while [ string.is-whitespace $(paragraph[-1]) ] { paragraph = $(paragraph[1--2]) ; }
+            pre = ;
+            if $(output-type) = plain
+            {
+                lines $(paragraph) "" : "  " "  " ;
+            }
+            else if $(output-type) = html
+            {
+                text <blockquote> ;
+                lines $(paragraph) ;
+                text </blockquote> ;
+            }
+        }
+        else
+        {
+            while $(description) && ! [ string.is-whitespace $(description[1]) ]
+                { paragraph += $(description[1]) ; description = $(description[2-]) ; }
+            if $(paragraph[1]) = :: && ! $(paragraph[2])
+            {
+                pre = " " ;
+            }
+            if $(paragraph[1]) = ::
+            {
+                if $(output-type) = plain
+                {
+                    lines $(paragraph[2-]) "" : "  " "  " ;
+                    lines ;
+                }
+                else if $(output-type) = html
+                {
+                    text <blockquote> ;
+                    lines $(paragraph[2-]) ;
+                    text </blockquote> ;
+                }
+            }
+            else
+            {
+                local p = [ MATCH "(.*)(::)$" : $(paragraph[-1]) ] ;
+                local pws = [ MATCH "([ 	]*)$" : $(p[1]) ] ;
+                p = [ MATCH "(.*)($(pws))($(p[2]))$" :  $(paragraph[-1]) ] ;
+                if $(p[3]) = ::
+                {
+                    pre = [ string.chars [ MATCH "^([$(.whitespace)]*)" : " $(p[1])" ] ] ;
+                    if ! $(p[2]) || $(p[2]) = "" { paragraph = $(paragraph[1--2]) $(p[1]): ; }
+                    else { paragraph = $(paragraph[1--2]) $(p[1]) ; }
+                    if $(output-type) = plain
+                    {
+                        lines [ split-at-words " " $(paragraph) ] : "  " "  " ;
+                        lines ;
+                    }
+                    else if $(output-type) = html
+                    {
+                        text </p> <p> [ escape-html $(paragraph) ] ;
+                    }
+                }
+                else
+                {
+                    if $(output-type) = plain
+                    {
+                        lines [ split-at-words " " $(paragraph) ] : "  " "  " ;
+                        lines ;
+                    }
+                    else if $(output-type) = html
+                    {
+                        text </p> <p> [ escape-html $(paragraph) ] ;
+                    }
+                }
+            }
+        }
+    }
+    if $(output-type) = html
+    {
+        text </p> ;
+    }
+}
+
+
+# Generate the start of a list of items. The type of output can be controlled by
+# the value of the 'output-type' variable.
+#
+rule list-start ( )
+{
+    if $(output-type) = plain
+    {
+    }
+    else if $(output-type) = html
+    {
+        text <ul> ;
+    }
+}
+
+
+# Generate an item in a list. The type of output can be controlled by the value
+# of the 'output-type' variable.
+#
+rule list-item (
+    item +  # The item to list.
+)
+{
+    if $(output-type) = plain
+    {
+        lines [ split-at-words "*" $(item) ] : "    " "  " ;
+    }
+    else if $(output-type) = html
+    {
+        text <li> [ escape-html $(item) ] </li> ;
+    }
+}
+
+
+# Generate the end of a list of items. The type of output can be controlled by
+# the value of the 'output-type' variable.
+#
+rule list-end ( )
+{
+    if $(output-type) = plain
+    {
+        lines ;
+    }
+    else if $(output-type) = html
+    {
+        text </ul> ;
+    }
+}
+
+
+# Split the given text into separate lines, word-wrapping to a margin. The
+# default margin is 78 characters.
+#
+rule split-at-words (
+    text +  # The text to split.
+    : margin ?  # An optional margin, default is 78.
+)
+{
+    local lines = ;
+    text = [ string.words $(text:J=" ") ] ;
+    text = $(text:J=" ") ;
+    margin ?= 78 ;
+    local char-match-1 = ".?" ;
+    local char-match = "" ;
+    while $(margin) != 0
+    {
+        char-match = $(char-match)$(char-match-1) ;
+        margin = [ numbers.decrement $(margin) ] ;
+    }
+    while $(text)
+    {
+        local s = "" ;
+        local t = "" ;
+        # divide s into the first X characters and the rest
+        s = [ MATCH "^($(char-match))(.*)" : $(text) ] ;
+        
+        if $(s[2])
+        {
+            # split the first half at a space
+            t = [ MATCH "^(.*)[\\ ]([^\\ ]*)$" : $(s[1]) ] ;
+        }
+        else
+        {
+            t = $(s) ;
+        }
+        
+        if ! $(t[2])
+        {
+            t += "" ;
+        }
+        
+        text = $(t[2])$(s[2]) ;
+        lines += $(t[1]) ;
+    }
+    return $(lines) ;
+}
+
+
+# Generate a set of fixed lines. Each single item passed in is output on a
+# separate line. For console this just echos each line, but for html this will
+# split them with <br>.
+#
+rule lines (
+    text *  # The lines of text.
+    : indent ?  # Optional indentation prepended to each line after the first one.
+    outdent ?  # Optional indentation to prepend to the first line.
+)
+{
+    text ?= "" ;
+    indent ?= "" ;
+    outdent ?= "" ;
+    if $(output-type) = plain
+    {
+        text $(outdent)$(text[1]) $(indent)$(text[2-]) ;
+    }
+    else if $(output-type) = html
+    {
+        local indent-chars = [ string.chars $(indent) ] ;
+        indent = "" ;
+        for local c in $(indent-chars)
+        {
+            if $(c) = " " { c = "&nbsp;" ; }
+            else if $(c) = "	" { c = "&nbsp;&nbsp;&nbsp;&nbsp;" ; }
+            indent = $(indent)$(c) ;
+        }
+        local html-text = [ escape-html $(text) : "&nbsp;" ] ;
+        text $(html-text[1])<br> $(indent)$(html-text[2-])<br> ;
+    }
+}
+
+
+# Output text directly to the current target. When doing output to a file, one
+# can indicate if the text should be output to "prefix" it, as the "body"
+# (default), or "suffix" of the file. This is independant of the actual
+# execution order of the text rule. This rule invokes a singular action, one
+# action only once, which does the build of the file. Therefore actions on the
+# target outside of this rule will happen entirely before and/or after all
+# output using this rule.
+#
+rule text (
+    strings *  # The strings of text to output.
+    : overwrite ?  # true to overwrite the output (if it is a file)
+    : prefix-body-suffix ?  # Indication to output prefix, body, or suffix (for a file).
+)
+{
+    prefix-body-suffix ?= body ;
+    if $(output-target) = console
+    {
+        if ! $(strings)
+        {
+            ECHO ;
+        }
+        else
+        {
+            for local s in $(strings)
+            {
+                ECHO $(s) ;
+            }
+        }
+    }
+    if ! $($(output-target).did-action)
+    {
+        $(output-target).did-action = yes ;
+        $(output-target).text-prefix = ;
+        $(output-target).text-body = ;
+        $(output-target).text-suffix = ;
+        
+        nl on $(output-target) = "
+" ;
+        text-redirect on $(output-target) = ">>" ;
+        if $(overwrite)
+        {
+            text-redirect on $(output-target) = ">" ;
+        }
+        text-content on $(output-target) = ;
+        
+        text-action $(output-target) ;
+
+        if $(overwrite) && $(output-target) != console
+        {
+            check-for-update $(output-target) ;
+        }
+    }
+    $(output-target).text-$(prefix-body-suffix) += $(strings) ;
+    text-content on $(output-target) =
+        $($(output-target).text-prefix)
+        $($(output-target).text-body)
+        $($(output-target).text-suffix) ;
+}
+
+
+# Outputs the text to the current targets, after word-wrapping it.
+#
+rule wrapped-text ( text + )
+{
+    local lines = [ split-at-words $(text) ] ;
+    text $(lines) ;
+}
+
+
+# Escapes text into html/xml printable equivalents. Does not know about tags and
+# therefore tags fed into this will also be escaped. Currently escapes space,
+# "<", ">", and "&".
+#
+rule escape-html (
+    text +  # The text to escape.
+    : space ?  # What to replace spaces with, defaults to " ".
+)
+{
+    local html-text = ;
+    while $(text)
+    {
+        local html = $(text[1]) ;
+        text = $(text[2-]) ;
+        html = [ regex.replace $(html) "&" "&amp;" ] ;
+        html = [ regex.replace $(html) "<" "&lt;" ] ;
+        html = [ regex.replace $(html) ">" "&gt;" ] ;
+        if $(space)
+        {
+            html = [ regex.replace $(html) " " "$(space)" ] ;
+        }
+        html-text += $(html) ;
+    }
+    return $(html-text) ;
+}
+
+
+# Outputs the text strings collected by the text rule to the output file.
+#
+actions quietly text-action
+{
+    @($(STDOUT):E=$(text-content:J=$(nl))) $(text-redirect) "$(<)"
+}
+
+
+rule get-scanner ( )
+{
+    if ! $(.scanner)
+    {
+        .scanner = [ class.new print-scanner ] ;
+    }
+    return $(.scanner) ;
+}
+
+
+# The following code to update print targets when their contents
+# change is a horrible hack.  It basically creates a target which
+# binds to this file (print.jam) and installs a scanner on it
+# which reads the target and compares its contents to the new
+# contents that we're writing.
+#
+rule check-for-update ( target )
+{
+    local scanner = [ get-scanner ] ;
+    local file = [ path.native [ modules.binding $(__name__) ] ] ;
+    local g = [ MATCH <(.*)> : $(target:G) ] ;
+    local dependency-target = $(__file__:G=$(g:E=)-$(target:G=)-$(scanner)) ;
+    DEPENDS $(target) : $(dependency-target) ;
+    SEARCH on $(dependency-target) = $(file:D) ;
+    ISFILE $(dependency-target) ;
+    NOUPDATE $(dependency-target) ;
+    base on $(dependency-target) = $(target) ;
+    scanner.install $(scanner) : $(dependency-target) none ;
+    return $(dependency-target) ;
+}
+
+
+class print-scanner : scanner
+{
+    import path ;
+    import os ;
+
+    rule pattern ( )
+    {
+        return "(One match...)" ;
+    }
+
+    rule process ( target : matches * : binding )
+    {
+        local base = [ on $(target) return $(base) ] ;
+        local nl = [ on $(base) return $(nl) ] ;
+        local text-content = [ on $(base) return $(text-content) ] ;
+        local dir = [ on $(base) return $(LOCATE) ] ;
+        if $(dir)
+        {
+            dir = [ path.make $(dir) ] ;
+        }
+        local file = [ path.native [ path.join $(dir) $(base:G=) ] ] ;
+        local actual-content ;
+        if [ os.name ] = NT
+        {
+            actual-content = [ SHELL "type \"$(file)\" 2>nul" ] ;
+        }
+        else
+        {
+            actual-content = [ SHELL "cat \"$(file)\" 2>/dev/null" ] ;
+        }
+        if $(text-content:J=$(nl)) != $(actual-content)
+        {
+            ALWAYS $(base) ;
+        }
+    }
+}
+
+
+rule __test__ ( )
+{
+    import assert ;
+    
+    assert.result one two three   : split-at-words one two three : 5 ;
+    assert.result "one two" three : split-at-words one two three : 8 ;
+    assert.result "one two" three : split-at-words one two three : 9 ;
+    assert.result "one two three" : split-at-words one two three ;
+
+    # VP, 2004-12-03 The following test fails for some reason, so commenting it
+    # out.
+    #assert.result "one&nbsp;two&nbsp;three" "&amp;&lt;&gt;" :
+    #    escape-html "one two three" "&<>" ;
+}
diff --git a/jam-files/boost-build/util/regex.jam b/jam-files/boost-build/util/regex.jam
new file mode 100644
index 00000000..234c36f6
--- /dev/null
+++ b/jam-files/boost-build/util/regex.jam
@@ -0,0 +1,193 @@
+# Copyright 2001, 2002 Dave Abrahams
+# Copyright 2003 Douglas Gregor
+# Copyright 2003 Rene Rivera
+# Copyright 2002, 2003, 2004, 2005 Vladimir Prus
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+#
+#   Returns a list of the following substrings:
+#   1) from beginning till the first occurrence of 'separator' or till the end,
+#   2) between each occurrence of 'separator' and the next occurrence,
+#   3) from the last occurrence of 'separator' till the end.
+#   If no separator is present, the result will contain only one element.
+#
+
+rule split ( string separator )
+{
+    local result ;
+    local s = $(string) ;
+
+    # Break pieaces off 's' until it has no separators left.
+    local match = 1 ;
+    while $(match)
+    {
+        match = [ MATCH ^(.*)($(separator))(.*) : $(s) ] ;
+        if $(match)
+        {
+            match += "" ;  # in case 3rd item was empty - works around MATCH bug
+            result = $(match[3]) $(result) ;
+            s = $(match[1]) ;
+        }
+    }
+    # Combine the remaining part at the beginning, which does not have
+    # separators, with the pieces broken off. Note that the rule's signature
+    # does not allow the initial s to be empty.
+    return $(s) $(result) ;
+}
+
+
+# Returns the concatenated results of Applying regex.split to every element of
+# the list using the separator pattern.
+#
+rule split-list ( list * : separator )
+{
+    local result ;
+    for s in $(list)
+    {
+        result += [ split $(s) $(separator) ] ;
+    }
+    return $(result) ;
+}
+
+
+# Match string against pattern, and return the elements indicated by indices.
+#
+rule match ( pattern : string : indices * )
+{
+    indices ?= 1 2 3 4 5 6 7 8 9 ;
+    local x = [ MATCH $(pattern) : $(string) ] ;
+    return $(x[$(indices)]) ;
+}
+
+
+# Matches all elements of 'list' agains the 'pattern' and returns a list of
+# elements indicated by indices of all successful matches. If 'indices' is
+# omitted returns a list of first paranthethised groups of all successful
+# matches.
+#
+rule transform ( list * : pattern : indices * )
+{
+    indices ?= 1 ;
+    local result ;
+    for local e in $(list)
+    {
+        local m = [ MATCH $(pattern) : $(e) ] ;
+        if $(m)
+        {
+            result += $(m[$(indices)]) ;
+        }
+    }
+    return $(result) ;
+}
+
+NATIVE_RULE regex : transform ;
+
+
+# Escapes all of the characters in symbols using the escape symbol escape-symbol
+# for the given string, and returns the escaped string.
+#
+rule escape ( string : symbols : escape-symbol )
+{
+    local result = "" ;
+    local m = 1 ;
+    while $(m)
+    {
+        m = [ MATCH ^([^$(symbols)]*)([$(symbols)])(.*) : $(string) ] ;
+        if $(m)
+        {
+            m += "" ;  # Supposedly a bug fix; borrowed from regex.split
+            result = "$(result)$(m[1])$(escape-symbol)$(m[2])" ;
+            string = $(m[3]) ;
+        }
+    }
+    string ?= "" ;
+    result = "$(result)$(string)" ;
+    return $(result) ;
+}
+
+
+# Replaces occurrences of a match string in a given string and returns the new
+# string. The match string can be a regex expression.
+#
+rule replace (
+    string  # The string to modify.
+    match  # The characters to replace.
+    replacement  # The string to replace with.
+    )
+{
+    local result = "" ;
+    local parts = 1 ;
+    while $(parts)
+    {
+        parts = [ MATCH ^(.*)($(match))(.*) : $(string) ] ;
+        if $(parts)
+        {
+            parts += "" ;
+            result = "$(replacement)$(parts[3])$(result)" ;
+            string = $(parts[1]) ;
+        }
+    }
+    string ?= "" ;
+    result = "$(string)$(result)" ;
+    return $(result) ;
+}
+
+
+# Replaces occurrences of a match string in a given list of strings and returns
+# a list of new strings. The match string can be a regex expression.
+#
+# list        - the list of strings to modify.
+# match       - the search expression.
+# replacement - the string to replace with.
+#
+rule replace-list ( list * : match : replacement )
+{
+    local result ;
+    for local e in $(list)
+    {
+        result += [ replace $(e) $(match) $(replacement) ] ;
+    }
+    return $(result) ;
+}
+
+
+rule __test__ ( )
+{
+    import assert ;
+
+    assert.result a b c : split "a/b/c" / ;
+    assert.result "" a b c : split "/a/b/c" / ;
+    assert.result "" "" a b c : split "//a/b/c" / ;
+    assert.result "" a "" b c : split "/a//b/c" / ;
+    assert.result "" a "" b c "" : split "/a//b/c/" / ;
+    assert.result "" a "" b c "" "" : split "/a//b/c//" / ;
+
+    assert.result a c b d
+        : match (.)(.)(.)(.) : abcd : 1 3 2 4 ;
+
+    assert.result a b c d
+        : match (.)(.)(.)(.) : abcd ;
+
+    assert.result ababab cddc
+        : match ((ab)*)([cd]+) : abababcddc : 1 3 ;
+
+    assert.result a.h c.h
+        : transform <a.h> \"b.h\" <c.h> : <(.*)> ;
+
+    assert.result a.h b.h c.h
+        : transform <a.h> \"b.h\" <c.h> : <([^>]*)>|\"([^\"]*)\" : 1 2 ;
+
+    assert.result "^<?xml version=\"1.0\"^>"
+        : escape "<?xml version=\"1.0\">" : "&|()<>^" : "^" ;
+
+    assert.result "<?xml version=\\\"1.0\\\">"
+        : escape "<?xml version=\"1.0\">" : "\\\"" : "\\" ;
+
+    assert.result "string&nbsp;string&nbsp;" : replace "string string " " " "&nbsp;" ;
+    assert.result "&nbsp;string&nbsp;string" : replace " string string" " " "&nbsp;" ;
+    assert.result "string&nbsp;&nbsp;string" : replace "string  string" " " "&nbsp;" ;
+    assert.result "-" : replace "&" "&" "-" ;
+
+    assert.result "-" "a-b" : replace-list "&" "a&b" : "&" : "-" ;
+}
diff --git a/jam-files/boost-build/util/regex.py b/jam-files/boost-build/util/regex.py
new file mode 100644
index 00000000..29e26ecf
--- /dev/null
+++ b/jam-files/boost-build/util/regex.py
@@ -0,0 +1,25 @@
+#  (C) Copyright David Abrahams 2001. Permission to copy, use, modify, sell and
+#  distribute this software is granted provided this copyright notice appears in
+#  all copies. This software is provided "as is" without express or implied
+#  warranty, and with no claim as to its suitability for any purpose.
+
+import re
+
+def transform (list, pattern, indices = [1]):
+    """ Matches all elements of 'list' agains the 'pattern' 
+        and returns a list of the elements indicated by indices of 
+        all successfull matches. If 'indices' is omitted returns
+        a list of first paranthethised groups of all successfull
+        matches.
+    """
+    result = []
+
+    for e in list:
+        m = re.match (pattern, e)
+
+        if m:
+            for i in indices:
+                result.append (m.group (i))
+
+    return result
+
diff --git a/jam-files/boost-build/util/sequence.jam b/jam-files/boost-build/util/sequence.jam
new file mode 100644
index 00000000..73919a65
--- /dev/null
+++ b/jam-files/boost-build/util/sequence.jam
@@ -0,0 +1,335 @@
+# Copyright 2001, 2002, 2003 Dave Abrahams 
+# Copyright 2006 Rene Rivera 
+# Copyright 2002, 2003 Vladimir Prus 
+# Distributed under the Boost Software License, Version 1.0. 
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) 
+
+import assert ;
+import numbers ; 
+import modules ;
+
+
+# Note that algorithms in this module execute largely in the caller's module
+# namespace, so that local rules can be used as function objects. Also note that
+# most predicates can be multi-element lists. In that case, all but the first
+# element are prepended to the first argument which is passed to the rule named
+# by the first element.
+
+
+# Return the elements e of $(sequence) for which [ $(predicate) e ] has a
+# non-null value.
+#
+rule filter ( predicate + : sequence * )
+{
+    local caller = [ CALLER_MODULE ] ;
+    local result ;
+
+    for local e in $(sequence)
+    {
+        if [ modules.call-in $(caller) : $(predicate) $(e) ]
+        {
+            result += $(e) ;
+        }
+    }
+    return $(result) ;
+}
+
+
+# Return a new sequence consisting of [ $(function) $(e) ] for each element e of
+# $(sequence).
+#
+rule transform ( function + : sequence * )
+{
+    local caller = [ CALLER_MODULE ] ;
+    local result ;
+
+    for local e in $(sequence)
+    {
+        result += [ modules.call-in $(caller) : $(function) $(e) ] ;
+    }
+    return $(result) ;
+}
+
+
+rule reverse ( s * )
+{
+    local r ;
+    for local x in $(s)
+    {
+        r = $(x) $(r) ;
+    }
+    return $(r) ;
+}
+
+
+rule less ( a b )
+{
+    if $(a) < $(b)
+    {
+        return true ;
+    }
+}
+
+
+# Insertion-sort s using the BinaryPredicate ordered.
+#
+rule insertion-sort ( s * : ordered * )
+{
+    if ! $(ordered)
+    {
+        return [ SORT $(s) ] ;
+    }
+    else 
+    {           
+        local caller = [ CALLER_MODULE ] ;
+        ordered ?= sequence.less ;
+        local result = $(s[1]) ;
+        if $(ordered) = sequence.less
+        {
+            local head tail ;
+            for local x in $(s[2-])
+            {
+                head = ;
+                tail = $(result) ;
+                while $(tail) && ( $(tail[1]) < $(x) )
+                {
+                    head += $(tail[1]) ;
+                    tail = $(tail[2-]) ;
+                }
+                result = $(head) $(x) $(tail) ;
+            }
+        }
+        else
+        {
+            for local x in $(s[2-])
+            {
+                local head tail ;
+                tail = $(result) ;
+                while $(tail) && [ modules.call-in $(caller) : $(ordered) $(tail[1]) $(x) ]
+                {
+                    head += $(tail[1]) ;
+                    tail = $(tail[2-]) ;
+                }
+                result = $(head) $(x) $(tail) ;
+            }
+        }
+        
+        return $(result) ;
+    }    
+}
+
+
+# Merge two ordered sequences using the BinaryPredicate ordered.
+#
+rule merge ( s1 * : s2 * : ordered * )
+{
+    ordered ?= sequence.less ;
+    local result__ ;
+    local caller = [ CALLER_MODULE ] ;
+
+    while $(s1) && $(s2)
+    {
+        if [ modules.call-in $(caller) : $(ordered) $(s1[1]) $(s2[1]) ]
+        {
+            result__ += $(s1[1]) ;
+            s1 = $(s1[2-]) ;
+        }
+        else if [ modules.call-in $(caller) : $(ordered) $(s2[1]) $(s1[1]) ]
+        {
+            result__ += $(s2[1]) ;
+            s2 = $(s2[2-]) ;
+        }
+        else 
+        {           
+            s2 = $(s2[2-]) ;
+        }
+        
+    }
+    result__ += $(s1) ;
+    result__ += $(s2) ;
+
+    return $(result__) ;
+}
+
+
+# Join the elements of s into one long string. If joint is supplied, it is used
+# as a separator.
+#
+rule join ( s * : joint ? )
+{
+    joint ?= "" ;
+    return $(s:J=$(joint)) ;
+}
+
+
+# Find the length of any sequence.
+#
+rule length ( s * )
+{
+    local result = 0 ;
+    for local i in $(s)
+    {
+        result = [ CALC $(result) + 1 ] ;
+    }
+    return $(result) ;
+}
+
+
+rule unique ( list * : stable ? )
+{
+    local result ;
+    local prev ;
+    if $(stable)
+    {
+        for local f in $(list)
+        {
+            if ! $(f) in $(result)
+            {
+                result += $(f) ;
+            }
+        }
+    }
+    else
+    {
+        for local i in [ SORT $(list) ]
+        {
+            if $(i) != $(prev)
+            {
+                result += $(i) ;
+            }
+            prev = $(i) ;
+        }
+    }
+    return $(result) ;
+}
+
+
+# Returns the maximum number in 'elements'. Uses 'ordered' for comparisons or
+# 'numbers.less' if none is provided.
+#
+rule max-element ( elements + : ordered ? )
+{
+    ordered ?= numbers.less ;
+
+    local max = $(elements[1]) ;
+    for local e in $(elements[2-]) 
+    {
+        if [ $(ordered) $(max) $(e) ] 
+        {
+            max = $(e) ;
+        }
+    }
+    return $(max) ;           
+}
+
+
+# Returns all of 'elements' for which corresponding element in parallel list
+# 'rank' is equal to the maximum value in 'rank'.
+#
+rule select-highest-ranked ( elements * : ranks * )
+{
+    if $(elements)
+    {        
+        local max-rank = [ max-element $(ranks) ] ;
+        local result ;
+        while $(elements) 
+        {
+            if $(ranks[1]) = $(max-rank)
+            {
+                result += $(elements[1]) ;
+            }
+            elements = $(elements[2-]) ;
+            ranks = $(ranks[2-]) ;
+        }
+        return $(result) ;
+    }    
+}
+NATIVE_RULE sequence : select-highest-ranked ;
+
+
+rule __test__ ( )
+{
+    # Use a unique module so we can test the use of local rules.
+    module sequence.__test__
+    {
+        import assert ;
+        import sequence ;
+        
+        local rule is-even ( n )
+        {
+            if $(n) in 0 2 4 6 8
+            {
+                return true ;
+            }
+        }
+
+        assert.result 4 6 4 2 8 : sequence.filter is-even : 1 4 6 3 4 7 2 3 8 ;
+
+        # Test that argument binding works.
+        local rule is-equal-test ( x y )
+        {
+            if $(x) = $(y)
+            {
+                return true ;
+            }
+        }
+
+        assert.result 3 3 3 : sequence.filter is-equal-test 3 : 1 2 3 4 3 5 3 5 7 ;
+
+        local rule append-x ( n )
+        {
+            return $(n)x ;
+        }
+
+        assert.result 1x 2x 3x : sequence.transform append-x : 1 2 3 ;
+
+        local rule repeat2 ( x )
+        {
+            return $(x) $(x) ;
+        }
+
+        assert.result 1 1 2 2 3 3 : sequence.transform repeat2 : 1 2 3 ;
+
+        local rule test-greater ( a b )
+        {
+            if $(a) > $(b)
+            {
+                return true ;
+            }
+        }
+        assert.result 1 2 3 4 5 6 7 8 9 : sequence.insertion-sort 9 6 5 3 8 7 1 2 4 ;
+        assert.result 9 8 7 6 5 4 3 2 1 : sequence.insertion-sort 9 6 5 3 8 7 1 2 4 : test-greater ;
+        assert.result 1 2 3 4 5 6 :  sequence.merge 1 3 5 : 2 4 6 ;
+        assert.result 6 5 4 3 2 1 :  sequence.merge 5 3 1 : 6 4 2 : test-greater ;
+        assert.result 1 2 3 : sequence.merge 1 2 3 : ;
+        assert.result 1 : sequence.merge 1 : 1 ;
+
+        assert.result foo-bar-baz : sequence.join foo bar baz : - ;
+        assert.result substandard : sequence.join sub stan dard ;
+        assert.result 3.0.1 : sequence.join 3.0.1 : - ;
+
+        assert.result 0 : sequence.length ;
+        assert.result 3 : sequence.length a b c ;
+        assert.result 17 : sequence.length 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 ;
+
+        assert.result 1 : sequence.length a ;
+        assert.result 10 : sequence.length a b c d e f g h i j ;
+        assert.result 11 : sequence.length a b c d e f g h i j k ;
+        assert.result 12 : sequence.length a b c d e f g h i j k l ;
+
+        local p2 = x ;
+        for local i in 1 2 3 4 5 6 7 8
+        {
+            p2 = $(p2) $(p2) ;
+        }
+        assert.result 256 : sequence.length $(p2) ;
+
+        assert.result 1 2 3 4 5 : sequence.unique 1 2 3 2 4 3 3 5 5 5 ;
+                
+        assert.result 5 : sequence.max-element 1 3 5 0 4 ;
+        
+        assert.result e-3 h-3 : sequence.select-highest-ranked e-1 e-3 h-3 m-2 : 1 3 3 2 ;
+        
+        assert.result 7 6 5 4 3 2 1 : sequence.reverse 1 2 3 4 5 6 7 ;
+    }
+}
diff --git a/jam-files/boost-build/util/sequence.py b/jam-files/boost-build/util/sequence.py
new file mode 100644
index 00000000..1d32efd2
--- /dev/null
+++ b/jam-files/boost-build/util/sequence.py
@@ -0,0 +1,50 @@
+#  (C) Copyright David Abrahams 2002. Permission to copy, use, modify, sell and
+#  distribute this software is granted provided this copyright notice appears in
+#  all copies. This software is provided "as is" without express or implied
+#  warranty, and with no claim as to its suitability for any purpose.
+
+import operator
+
+def unique (values, stable=False):
+    if stable:
+        s = set()
+        r = []
+        for v in values:
+            if not v in s:
+                r.append(v)
+                s.add(v)
+        return r
+    else:
+        return list(set(values))
+
+def max_element (elements, ordered = None):
+    """ Returns the maximum number in 'elements'. Uses 'ordered' for comparisons,
+        or '<' is none is provided.
+    """
+    if not ordered: ordered = operator.lt
+
+    max = elements [0]
+    for e in elements [1:]:
+        if ordered (max, e):
+            max = e
+
+    return max
+
+def select_highest_ranked (elements, ranks):
+    """ Returns all of 'elements' for which corresponding element in parallel
+        list 'rank' is equal to the maximum value in 'rank'.
+    """
+    if not elements:
+        return []
+
+    max_rank = max_element (ranks)
+
+    result = []
+    while elements:
+        if ranks [0] == max_rank:
+            result.append (elements [0])
+
+        elements = elements [1:]
+        ranks = ranks [1:]
+
+    return result
diff --git a/jam-files/boost-build/util/set.jam b/jam-files/boost-build/util/set.jam
new file mode 100644
index 00000000..fc179134
--- /dev/null
+++ b/jam-files/boost-build/util/set.jam
@@ -0,0 +1,93 @@
+# Copyright 2001, 2002 Dave Abrahams
+# Copyright 2003 Vladimir Prus
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+class set
+{
+    rule __init__ ( )
+    {
+    }  
+    
+    rule add ( elements * )
+    {
+        for local e in $(elements)
+        {
+            if ! $($(e))
+            {
+                $(e) = 1 ;
+                self.result += $(e) ;
+            }            
+        }        
+    }    
+    
+    rule contains ( element )
+    {
+        return $($(element)) ;
+    }
+    
+    rule list ( )
+    {
+        return $(self.result) ;
+    }            
+}
+
+
+
+# Returns the elements of set1 that are not in set2.
+#
+rule difference ( set1 * : set2 * )
+{
+    local result = ;
+    for local element in $(set1)
+    {
+        if ! ( $(element) in $(set2) )
+        {
+            result += $(element) ;
+        }
+    }
+    return $(result) ;
+}
+
+NATIVE_RULE set : difference ;
+
+
+# Removes all the items appearing in both set1 & set2.
+#
+rule intersection ( set1 * : set2 * )
+{
+    local result ;
+    for local v in $(set1)
+    {
+        if $(v) in $(set2)
+        {
+            result += $(v) ;
+        }
+    }
+    return $(result) ;
+}
+
+
+# Returns whether set1 & set2 contain the same elements. Note that this ignores
+# any element ordering differences as well as any element duplication.
+#
+rule equal ( set1 * : set2 * )
+{
+    if $(set1) in $(set2) && ( $(set2) in $(set1) )
+    {
+        return true ;
+    }
+}
+
+
+rule __test__ ( )
+{
+    import assert ;
+
+    assert.result 0 1 4 6 8 9 : difference   0 1 2 3 4 5 6 7 8 9 : 2 3 5 7 ;
+    assert.result 2 5 7       : intersection 0 1 2   4 5 6 7 8 9 : 2 3 5 7 ;
+
+    assert.true  equal         :         ;
+    assert.true  equal 1 1 2 3 : 3 2 2 1 ;
+    assert.false equal 2 3     : 3 2 2 1 ;
+}
diff --git a/jam-files/boost-build/util/set.py b/jam-files/boost-build/util/set.py
new file mode 100644
index 00000000..dc7cf328
--- /dev/null
+++ b/jam-files/boost-build/util/set.py
@@ -0,0 +1,42 @@
+#  (C) Copyright David Abrahams 2001. Permission to copy, use, modify, sell and
+#  distribute this software is granted provided this copyright notice appears in
+#  all copies. This software is provided "as is" without express or implied
+#  warranty, and with no claim as to its suitability for any purpose.
+
+from utility import to_seq
+
+def difference (b, a):
+    """ Returns the elements of B that are not in A.
+    """
+    result = []
+    for element in b:
+        if not element in a:
+            result.append (element)
+
+    return result
+
+def intersection (set1, set2):
+    """ Removes from set1 any items which don't appear in set2 and returns the result.
+    """
+    result = []
+    for v in set1:
+        if v in set2:
+            result.append (v)
+    return result
+
+def contains (small, large):
+    """ Returns true iff all elements of 'small' exist in 'large'.
+    """
+    small = to_seq (small)
+    large = to_seq (large)
+
+    for s in small:
+        if not s in large:
+            return False
+    return True
+
+def equal (a, b):
+    """ Returns True iff 'a' contains the same elements as 'b', irrespective of their order.
+        # TODO: Python 2.4 has a proper set class.
+    """
+    return contains (a, b) and contains (b, a)
diff --git a/jam-files/boost-build/util/string.jam b/jam-files/boost-build/util/string.jam
new file mode 100644
index 00000000..a39ed119
--- /dev/null
+++ b/jam-files/boost-build/util/string.jam
@@ -0,0 +1,189 @@
+# Copyright 2002 Dave Abrahams
+# Copyright 2002, 2003 Rene Rivera
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+import regex ;
+
+
+# Characters considered whitespace, as a list.
+.whitespace-chars = " " "	" "
+" ;
+
+# Characters considered whitespace, as a single string.
+.whitespace = $(.whitespace-chars:J="") ;
+
+
+# Returns the canonical set of whitespace characters, as a list.
+#
+rule whitespace-chars ( )
+{
+    return $(.whitespace-chars) ;
+}
+
+
+# Returns the canonical set of whitespace characters, as a single string.
+#
+rule whitespace ( )
+{
+    return $(.whitespace) ;
+}
+
+
+# Splits the given string into a list of strings composed of each character of
+# the string in sequence.
+#
+rule chars (
+    string  # The string to split.
+    )
+{
+    local result ;
+    while $(string)
+    {
+        local s = [ MATCH (.?)(.?)(.?)(.?)(.?)(.?)(.?)(.?)(.*) : $(string) ] ;
+        string = $(s[9]) ;
+        result += $(s[1-8]) ;
+    }
+
+    # Trim off empty strings.
+    while $(result[1]) && ! $(result[-1])
+    {
+        result = $(result[1--2]) ;
+    }
+
+    return $(result) ;
+}
+
+
+# Apply a set of standard transformations to string to produce an abbreviation
+# no more than 5 characters long.
+#
+rule abbreviate ( string )
+{
+    local r = $(.abbreviated-$(string)) ;
+    if $(r)
+    {
+        return $(r) ;
+    }
+    # Anything less than 4 characters gets no abbreviation.
+    else if ! [ MATCH (....) : $(string) ]
+    {
+        .abbreviated-$(string) = $(string) ;
+        return $(string) ;
+    }
+    else
+    {
+        # Separate the initial letter in case it's a vowel.
+        local s1 = [ MATCH ^(.)(.*) : $(string) ] ;
+
+        # Drop trailing "ing".
+        local s2 = [ MATCH ^(.*)ing$ : $(s1[2]) ] ;
+        s2 ?= $(s1[2]) ;
+
+        # Reduce all doubled characters to one.
+        local last = "" ;
+        for local c in [ chars $(s2) ]
+        {
+            if $(c) != $(last)
+            {
+                r += $(c) ;
+                last = $(c) ;
+            }
+        }
+        s2 = $(r:J="") ;
+
+        # Chop all vowels out of the remainder.
+        s2 = [ regex.replace $(s2) [AEIOUaeiou] "" ] ;
+
+        # Shorten remaining consonants to 4 characters.
+        s2 = [ MATCH ^(.?.?.?.?) : $(s2) ] ;
+
+        # Glue the initial character back on to the front.
+        s2 = $(s1[1])$(s2) ;
+
+        .abbreviated-$(string) = $(s2) ;
+        return $(s2) ;
+    }
+}
+
+
+# Concatenates the given strings, inserting the given separator between each
+# string.
+#
+rule join (
+    strings *  # The strings to join.
+    : separator ?  # The optional separator.
+    )
+{
+    separator ?= "" ;
+    return $(strings:J=$(separator)) ;
+}
+
+
+# Split a string into whitespace separated words.
+#
+rule words (
+    string  # The string to split.
+    : whitespace *  # Optional, characters to consider as whitespace.
+    )
+{
+    whitespace = $(whitespace:J="") ;
+    whitespace ?= $(.whitespace) ;
+    local w = ;
+    while $(string)
+    {
+        string = [ MATCH "^[$(whitespace)]*([^$(whitespace)]*)(.*)" : $(string) ] ;
+        if $(string[1]) && $(string[1]) != ""
+        {
+            w += $(string[1]) ;
+        }
+        string = $(string[2]) ;
+    }
+    return $(w) ;
+}
+
+
+# Check that the given string is composed entirely of whitespace.
+#
+rule is-whitespace (
+    string ?  # The string to test.
+    )
+{
+    if ! $(string) { return true ; }
+    else if $(string) = "" { return true ; }
+    else if [ MATCH "^([$(.whitespace)]+)$" : $(string) ] { return true ; }
+    else { return ; }
+}
+
+rule __test__ ( )
+{
+    import assert ;
+    assert.result a b c : chars abc ;
+
+    assert.result rntm : abbreviate runtime ;
+    assert.result ovrld : abbreviate overload ;
+    assert.result dbg : abbreviate debugging ;
+    assert.result async : abbreviate asynchronous ;
+    assert.result pop : abbreviate pop ;
+    assert.result aaa : abbreviate aaa ;
+    assert.result qck : abbreviate quack ;
+    assert.result sttc : abbreviate static ;
+
+    # Check boundary cases.
+    assert.result a : chars a ;
+    assert.result : chars "" ;
+    assert.result a b c d e f g h : chars abcdefgh ;
+    assert.result a b c d e f g h i : chars abcdefghi ;
+    assert.result a b c d e f g h i j : chars abcdefghij ;
+    assert.result a b c d e f g h i j k : chars abcdefghijk ;
+
+    assert.result a//b/c/d : join a "" b c d : / ;
+    assert.result abcd : join  a "" b c d ;
+
+    assert.result a b c : words "a b	c" ;
+
+    assert.true is-whitespace "     	" ;
+    assert.false is-whitespace "  a b c	" ;
+    assert.true is-whitespace "" ;
+    assert.true is-whitespace ;
+}
diff --git a/jam-files/boost-build/util/utility.jam b/jam-files/boost-build/util/utility.jam
new file mode 100644
index 00000000..c46747f5
--- /dev/null
+++ b/jam-files/boost-build/util/utility.jam
@@ -0,0 +1,235 @@
+# Copyright 2001, 2002 Dave Abrahams
+# Copyright 2002, 2003, 2004, 2005 Vladimir Prus
+# Copyright 2008 Jurko Gospodnetic
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+import "class" : is-instance ;
+import errors ;
+
+
+# For all elements of 'list' which do not already have 'suffix', add 'suffix'.
+#
+rule apply-default-suffix ( suffix : list * )
+{
+    local result ;
+    for local i in $(list)
+    {
+        if $(i:S) = $(suffix)
+        {
+            result += $(i) ;
+        }
+        else
+        {
+            result += $(i)$(suffix) ;
+        }
+    }
+    return $(result) ;
+}
+
+
+# If 'name' contains a dot, returns the part before the last dot. If 'name'
+# contains no dot, returns it unmodified.
+#
+rule basename ( name )
+{
+    if $(name:S)
+    {
+        name = $(name:B) ;
+    }
+    return $(name) ;
+}
+
+
+# Return the file of the caller of the rule that called caller-file.
+#
+rule caller-file ( )
+{
+    local bt = [ BACKTRACE ] ;
+    return $(bt[9]) ;
+}
+
+
+# Tests if 'a' is equal to 'b'. If 'a' is a class instance, calls its 'equal'
+# method. Uses ordinary jam's comparison otherwise.
+#
+rule equal ( a b )
+{
+    if [ is-instance $(a) ]
+    {
+        return [ $(a).equal $(b) ] ;
+    }
+    else
+    {
+        if $(a) = $(b)
+        {
+            return true ;
+        }
+    }
+}
+
+
+# Tests if 'a' is less than 'b'. If 'a' is a class instance, calls its 'less'
+# method. Uses ordinary jam's comparison otherwise.
+#
+rule less ( a b )
+{
+    if [ is-instance $(a) ]
+    {
+        return [ $(a).less $(b) ] ;
+    }
+    else
+    {
+        if $(a) < $(b)
+        {
+            return true ;
+        }
+    }
+}
+
+
+# Returns the textual representation of argument. If it is a class instance,
+# class its 'str' method. Otherwise, returns the argument.
+#
+rule str ( value )
+{
+    if [ is-instance $(value) ]
+    {
+        return [ $(value).str ] ;
+    }
+    else
+    {
+        return $(value) ;
+    }
+}
+
+
+# Accepts a list of gristed values and returns them ungristed. Reports an error
+# in case any of the passed parameters is not gristed, i.e. surrounded in angle
+# brackets < and >.
+#
+rule ungrist ( names * )
+{
+    local result ;
+    for local name in $(names)
+    {
+        local stripped = [ MATCH ^<(.*)>$ : $(name) ] ;
+        if ! $(stripped)
+        {
+            errors.error "in ungrist $(names) : $(name) is not of the form <.*>" ;
+        }
+        result += $(stripped) ;
+    }
+    return $(result) ;
+}
+
+
+# If the passed value is quoted, unquotes it. Otherwise returns the value
+# unchanged.
+#
+rule unquote ( value ? )
+{
+    local match-result = [ MATCH ^(\")(.*)(\")$ : $(value) ] ;
+    if $(match-result)
+    {
+        return $(match-result[2]) ;
+    }
+    else
+    {
+        return $(value) ;
+    }
+}
+
+
+rule __test__ ( )
+{
+    import assert ;
+    import "class" : new ;
+    import errors : try catch ;
+
+    assert.result 123 : str 123 ;
+
+    class test-class__
+    {
+        rule __init__ (   ) {                            }
+        rule str      (   ) { return "str-test-class"  ; }
+        rule less     ( a ) { return "yes, of course!" ; }
+        rule equal    ( a ) { return "not sure"        ; }
+    }
+
+    assert.result "str-test-class" : str [ new test-class__ ] ;
+    assert.true less 1 2 ;
+    assert.false less 2 1 ;
+    assert.result "yes, of course!" : less [ new test-class__ ] 1 ;
+    assert.true equal 1 1 ;
+    assert.false equal 1 2 ;
+    assert.result "not sure" : equal [ new test-class__ ] 1 ;
+
+    assert.result foo.lib foo.lib : apply-default-suffix .lib : foo.lib foo.lib
+        ;
+
+    assert.result foo : basename foo ;
+    assert.result foo : basename foo.so ;
+    assert.result foo.so : basename foo.so.1 ;
+
+    assert.result         : unquote ;
+    assert.result ""      : unquote "" ;
+    assert.result foo     : unquote foo ;
+    assert.result \"foo   : unquote \"foo ;
+    assert.result foo\"   : unquote foo\" ;
+    assert.result foo     : unquote \"foo\" ;
+    assert.result \"foo\" : unquote \"\"foo\"\" ;
+
+    assert.result         : ungrist ;
+    assert.result foo     : ungrist <foo> ;
+    assert.result <foo>   : ungrist <<foo>> ;
+    assert.result foo bar : ungrist <foo> <bar> ;
+
+    try ;
+    {
+        ungrist "" ;
+    }
+    catch "in ungrist  :  is not of the form <.*>" ;
+
+    try ;
+    {
+        ungrist <> ;
+    }
+    catch "in ungrist <> : <> is not of the form <.*>" ;
+
+    try ;
+    {
+        ungrist foo ;
+    }
+    catch "in ungrist foo : foo is not of the form <.*>" ;
+
+    try ;
+    {
+        ungrist <foo ;
+    }
+    catch "in ungrist <foo : <foo is not of the form <.*>" ;
+
+    try ;
+    {
+        ungrist foo> ;
+    }
+    catch "in ungrist foo> : foo> is not of the form <.*>" ;
+
+    try ;
+    {
+        ungrist foo bar ;
+    }
+    catch "in ungrist foo : foo is not of the form <.*>" ;
+
+    try ;
+    {
+        ungrist foo <bar> ;
+    }
+    catch "in ungrist foo : foo is not of the form <.*>" ;
+
+    try ;
+    {
+        ungrist <foo> bar ;
+    }
+    catch "in ungrist bar : bar is not of the form <.*>" ;
+}
diff --git a/jam-files/boost-build/util/utility.py b/jam-files/boost-build/util/utility.py
new file mode 100644
index 00000000..afea765b
--- /dev/null
+++ b/jam-files/boost-build/util/utility.py
@@ -0,0 +1,155 @@
+#  (C) Copyright David Abrahams 2001. Permission to copy, use, modify, sell and
+#  distribute this software is granted provided this copyright notice appears in
+#  all copies. This software is provided "as is" without express or implied
+#  warranty, and with no claim as to its suitability for any purpose.
+
+""" Utility functions to add/remove/get grists.
+    Grists are string enclosed in angle brackets (<>) that are used as prefixes. See Jam for more information.
+"""
+
+import re
+import os
+import bjam
+from b2.exceptions import *
+
+__re_grist_and_value = re.compile (r'(<[^>]*>)(.*)')
+__re_grist_content = re.compile ('^<(.*)>$')
+__re_backslash = re.compile (r'\\')
+
+def to_seq (value):
+    """ If value is a sequence, returns it.
+        If it is a string, returns a sequence with value as its sole element.
+        """
+    if not value:
+        return []
+
+    if isinstance (value, str):
+        return [value]
+
+    else:
+        return value
+
+def replace_references_by_objects (manager, refs):
+    objs = []
+    for r in refs:
+        objs.append (manager.get_object (r))
+    return objs
+
+def add_grist (features):
+    """ Transform a string by bracketing it with "<>". If already bracketed, does nothing.
+        features: one string or a sequence of strings
+        return: the gristed string, if features is a string, or a sequence of gristed strings, if features is a sequence
+    """
+
+    def grist_one (feature):
+        if feature [0] != '<' and feature [len (feature) - 1] != '>':
+            return '<' + feature + '>'
+        else:
+            return feature
+    
+    if isinstance (features, str):
+        return grist_one (features)
+    else:
+        return [ grist_one (feature) for feature in features ]
+
+def replace_grist (features, new_grist):
+    """ Replaces the grist of a string by a new one.
+        Returns the string with the new grist.
+    """
+    def replace_grist_one (name, new_grist):
+        split = __re_grist_and_value.match (name)
+        if not split:
+            return new_grist + name
+        else:
+            return new_grist + split.group (2)
+
+    if isinstance (features, str):
+        return replace_grist_one (features, new_grist)
+    else:
+        return [ replace_grist_one (feature, new_grist) for feature in features ]
+
+def get_value (property):
+    """ Gets the value of a property, that is, the part following the grist, if any.
+    """
+    return replace_grist (property, '')
+    
+def get_grist (value):
+    """ Returns the grist of a string.
+        If value is a sequence, does it for every value and returns the result as a sequence.
+    """
+    def get_grist_one (name):
+        split = __re_grist_and_value.match (name)
+        if not split:
+            return ''
+        else:
+            return split.group (1)
+
+    if isinstance (value, str):
+        return get_grist_one (value)
+    else:
+        return [ get_grist_one (v) for v in value ]
+
+def ungrist (value):
+    """ Returns the value without grist. 
+        If value is a sequence, does it for every value and returns the result as a sequence.
+    """
+    def ungrist_one (value):
+        stripped = __re_grist_content.match (value)
+        if not stripped:
+            raise BaseException ("in ungrist: '%s' is not of the form <.*>" % value)
+
+        return stripped.group (1)
+
+    if isinstance (value, str):
+        return ungrist_one (value)
+    else:
+        return [ ungrist_one (v) for v in value ]
+
+def replace_suffix (name, new_suffix):
+    """ Replaces the suffix of name by new_suffix.
+        If no suffix exists, the new one is added.
+    """
+    split = os.path.splitext (name)
+    return split [0] + new_suffix
+
+def forward_slashes (s):
+    """ Converts all backslashes to forward slashes.
+    """
+    return __re_backslash.sub ('/', s)
+
+
+def split_action_id (id):
+    """ Splits an id in the toolset and specific rule parts. E.g.
+        'gcc.compile.c++' returns ('gcc', 'compile.c++')
+    """
+    split = id.split ('.', 1)
+    toolset = split [0]
+    name = ''
+    if len (split) > 1:
+        name = split [1]
+    return (toolset, name)
+
+def os_name ():
+    result = bjam.variable("OS")
+    assert(len(result) == 1)
+    return result[0]
+
+def platform ():
+    return bjam.variable("OSPLAT")
+    
+def os_version ():
+    return bjam.variable("OSVER")
+
+def on_windows ():
+    """ Returns true if running on windows, whether in cygwin or not.
+    """
+    if bjam.variable("NT"):
+        return True
+
+    elif bjam.variable("UNIX"):
+
+        uname = bjam.variable("JAMUNAME")
+        if uname and uname[0].startswith("CYGWIN"):
+            return True
+
+    return False