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authorKenneth Heafield <github@kheafield.com>2012-10-22 12:07:20 +0100
committerKenneth Heafield <github@kheafield.com>2012-10-22 12:07:20 +0100
commitac586bc9b156b4ae687cd5961ba1fe7b20ec57d6 (patch)
tree052473b46d7fa18d51f897cdb9e7c93a7186dafd /jam-files/boost-build/build/toolset.jam
parent97b85c082b3e55c28a8b0c0eb762483ac84a1577 (diff)
parentad6d4a1b2519896f2b16a282699ce4e64041fab8 (diff)
Merge remote branch 'upstream/master'
Conflicts: Jamroot bjam decoder/Jamfile decoder/cdec.cc dpmert/Jamfile jam-files/sanity.jam klm/lm/Jamfile klm/util/Jamfile mira/Jamfile
Diffstat (limited to 'jam-files/boost-build/build/toolset.jam')
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diff --git a/jam-files/boost-build/build/toolset.jam b/jam-files/boost-build/build/toolset.jam
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-# 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 ;
-}