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Diffstat (limited to 'jam-files/boost-build/kernel/bootstrap.jam')
| -rw-r--r-- | jam-files/boost-build/kernel/bootstrap.jam | 263 |
1 files changed, 263 insertions, 0 deletions
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in [ RULENAMES ] + { + ECHO "error: builtin rule '$(r)' is not present" ; + ECHO "error: your version of bjam is likely out of date" ; + ECHO "error: please get a fresh version from SVN."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; + ECHO "error: or interface version of that rule is too low" ; + ECHO "error: your version of bjam is likely out of date" ; + ECHO "error: please get a fresh version from SVN."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 $(p) + { + ECHO "error: no builtin module .ENVIRON is found" ; + ECHO "error: your version of bjam is likely out of date" ; + ECHO "error: please get a fresh version from SVN."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 ; + #} + + } +} |