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280 lines
7.9 KiB
Plaintext
280 lines
7.9 KiB
Plaintext
# Copyright (c) 2010 Vladimir Prus.
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# Copyright (c) 2013 Steven Watanabe
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#
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# Use, modification and distribution is subject to the Boost Software
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# License Version 1.0. (See accompanying file LICENSE_1_0.txt or
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# http://www.boost.org/LICENSE_1_0.txt)
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# Supports the bzip library
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#
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# After 'using bzip2', the following targets are available:
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#
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# /bzip2//bzip2 -- The bzip library
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import project ;
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import ac ;
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import errors ;
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import feature ;
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import "class" : new ;
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import targets ;
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import path ;
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import modules ;
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import indirect ;
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import make ;
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import os ;
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import print ;
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import property ;
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import property-set ;
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header = bzlib.h ;
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names = bz2 ;
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sources = blocksort.c bzlib.c compress.c crctable.c
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decompress.c huffman.c randtable.c ;
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library-id = 0 ;
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if --debug-configuration in [ modules.peek : ARGV ]
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{
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.debug = true ;
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}
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# Initializes the bzip library.
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#
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# bzip can be configured either to use pre-existing binaries
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# or to build the library from source.
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#
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# Options for configuring a prebuilt bzip::
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#
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# <search>
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# The directory containing the bzip binaries.
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# <name>
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# Overrides the default library name.
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# <include>
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# The directory containing the bzip headers.
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#
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# If none of these options is specified, then the environmental
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# variables BZIP2_LIBRARY_PATH, BZIP2_NAME, and BZIP2_INCLUDE will
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# be used instead.
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#
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# Options for building bzip from source::
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#
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# <source>
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# The bzip source directory. Defaults to the environmental variable
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# BZIP2_SOURCE.
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# <tag>
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# A rule which computes the actual name of the compiled
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# libraries based on the build properties. Ignored
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# when using precompiled binaries.
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# <build-name>
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# The base name to use for the compiled library. Ignored
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# when using precompiled binaries.
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#
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# Examples::
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#
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# # Find bzip in the default system location
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# using bzip2 ;
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# # Build bzip from source
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# using bzip2 : 1.0.6 : <source>/home/sergey/src/bzip2-1.0.6 ;
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# # Find bzip in /usr/local
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# using bzip2 : 1.0.6
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# : <include>/usr/local/include <search>/usr/local/lib ;
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# # Build bzip from source for msvc and find
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# # prebuilt binaries for gcc.
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# using bzip2 : 1.0.6 : <source>C:/Devel/src/bzip2-1.0.6 : <toolset>msvc ;
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# using bzip2 : 1.0.6 : : <toolset>gcc ;
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#
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rule init (
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version ?
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# The bzip version (currently ignored)
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: options *
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# A list of the options to use
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: requirements *
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# The requirements for the bzip target
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: is-default ?
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# Default configurations are only used when bzip
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# has not yet been configured. This option is
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# deprecated. A configuration will be treated
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# as a default when none of <include>, <search>,
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# <name>, and <source> are present.
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)
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{
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local caller = [ project.current ] ;
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if ! $(.initialized)
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{
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.initialized = true ;
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project.initialize $(__name__) ;
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.project = [ project.current ] ;
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project bzip2 ;
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}
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local library-path = [ feature.get-values <search> : $(options) ] ;
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local include-path = [ feature.get-values <include> : $(options) ] ;
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local source-path = [ feature.get-values <source> : $(options) ] ;
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local library-name = [ feature.get-values <name> : $(options) ] ;
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local tag = [ feature.get-values <tag> : $(options) ] ;
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local build-name = [ feature.get-values <build-name> : $(options) ] ;
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if ! $(library-path) && ! $(include-path) && ! $(source-path) && ! $(library-name)
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{
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is-default = true ;
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}
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condition = [ property-set.create $(requirements) ] ;
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condition = [ property-set.create [ $(condition).base ] ] ;
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local no-build-from-source ;
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# Ignore environmental BZIP2_SOURCE if this initialization
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# requested to search for a specific pre-built library.
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if $(library-path) || $(include-path) || $(library-name)
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{
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if $(source-path) || $(tag) || $(build-name)
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{
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errors.user-error "incompatible options for bzip2:"
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[ property.select <search> <include> <name> : $(options) ] "and"
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[ property.select <source> <tag> <build-name> : $(options) ] ;
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}
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}
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else
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{
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source-path ?= [ os.environ BZIP2_SOURCE ] ;
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if $(source-path)
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{
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source-path = [ path.root [ path.make $(source-path) ]
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[ path.pwd ] ] ;
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}
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}
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if $(.configured.$(condition))
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{
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if $(is-default)
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{
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if $(.debug)
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{
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ECHO "notice: [bzip2] bzip is already configured" ;
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}
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}
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else
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{
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errors.user-error "bzip is already configured" ;
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}
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return ;
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}
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else if $(source-path)
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{
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build-name ?= bz2 ;
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library-id = [ CALC $(library-id) + 1 ] ;
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tag = [ MATCH ^@?(.*)$ : $(tag) ] ;
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if $(tag)
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{
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tag = [ indirect.make $(tag) : [ $(caller).project-module ] ] ;
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}
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sources = [ path.glob $(source-path) : $(sources) ] ;
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def-file = [ path.glob $(source-path) : libbz2.def ] ;
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if $(.debug)
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{
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ECHO "notice: [bzip2] Building bzip from source as $(build-name)" ;
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if $(condition)
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{
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ECHO "notice: [bzip2] Condition" [ $(condition).raw ] ;
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}
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if $(sources)
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{
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ECHO "notice: [bzip2] found bzip source in $(source-path)" ;
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}
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else
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{
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ECHO "warning: [bzip2] could not find bzip source in $(source-path)" ;
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}
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}
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local target ;
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if $(sources)
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{
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if ! $(.def-file-target)
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{
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.def-file-target = [ targets.create-metatarget make-target-class
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: $(.project) : libbz2.def : $(def-file)
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: <action>@bzip2.make-bz2-def-file ]
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;
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}
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target = [ targets.create-typed-target LIB : $(.project)
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: $(build-name).$(library-id)
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: $(sources)
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: $(requirements)
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<tag>@$(tag)
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<include>$(source-path)
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<toolset>msvc:<define>_CRT_SECURE_NO_DEPRECATE
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<toolset>msvc:<define>_SCL_SECURE_NO_DEPRECATE
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<link>shared:<def-file>libbz2.def
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:
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: <include>$(source-path) ] ;
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}
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local mt = [ new ac-library bzip2 : $(.project) : $(condition) ] ;
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$(mt).set-header $(header) ;
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$(mt).set-default-names $(names) ;
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if $(target)
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{
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$(mt).set-target $(target) ;
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}
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targets.main-target-alternative $(mt) ;
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}
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else
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{
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if $(.debug)
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{
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ECHO "notice: [bzip2] Using pre-installed library" ;
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if $(condition)
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{
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ECHO "notice: [bzip2] Condition" [ $(condition).raw ] ;
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}
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}
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local mt = [ new ac-library bzip2 : $(.project) : $(condition) :
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$(include-path) : $(library-path) : $(library-name) ] ;
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$(mt).set-header $(header) ;
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$(mt).set-default-names $(names) ;
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targets.main-target-alternative $(mt) ;
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}
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.configured.$(condition) = true ;
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}
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if [ os.name ] = NT
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{
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local rule read-file ( file )
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{
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return [ SPLIT_BY_CHARACTERS [ SHELL "type \"$(file:G=)\" 2>nul" ] : "\n" ] ;
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}
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}
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else if [ os.name ] = VMS
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{
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local rule read-file ( file )
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{
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return [ SPLIT_BY_CHARACTERS [ SHELL "PIPE TYPE $(file:W) 2>NL:" ] : "\n" ] ;
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}
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}
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else
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{
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local rule read-file ( file )
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{
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return [ SPLIT_BY_CHARACTERS [ SHELL "cat \"$(file:G=)\" 2>/dev/null" ] : "\n" ] ;
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}
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}
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rule make-bz2-def-file ( target : source : properties * )
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{
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print.output $(target) ;
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for local line in [ read-file $(source) ]
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{
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if ! [ MATCH "(LIBRARY[ \t]+LIBBZ2)" : $(line) ]
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{
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print.text $(line) : yes ;
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}
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}
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}
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