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boost1.62 1.62.0+dfsg-10
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# Boost.Build support specific for the Boost C++ Libraries.
# Copyright Vladimir Prus 2002-2010.
# Copyright Dave Abrahams 2005-2006.
# Copyright Rene Rivera 2005-2007.
# Copyright Douglas Gregor 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 "class" : new ;
import common ;
import configure ;
import build-system ;
import generate ;
import modules ;
import option ;
import os ;
import package ;
import path ;
import project ;
import regex ;
import set ;
import targets ;
import feature ;
import property ;

##############################################################################
#
# 0. General setup. Parse options, check them.
#
##############################################################################

BOOST_ROOT = [ modules.binding $(__name__) ] ;
BOOST_ROOT = $(BOOST_ROOT:D) ;

rule set-version ( version )
{
    BOOST_VERSION = $(version) ;

    local version-tag = [ MATCH ^([^.]+)[.]([^.]+)[.]([^.]+) : $(BOOST_VERSION)
        ] ;
    if $(version-tag[3]) = 0
    {
        version-tag = $(version-tag[1-2]) ;
    }
    BOOST_VERSION_TAG = $(version-tag:J=_) ;
}

# Option to choose how many variants to build. The default is "minimal".
build-type = [ option.get build-type ] ;
build-type ?= minimal ;
if ! ( $(build-type) in complete minimal )
{
    EXIT The value of the --build-type option should be either 'complete' or
        'minimal' ;
}

# What kind of layout are we doing?
layout = [ option.get layout : "" ] ;
# On Windows, we used versioned layout by default in order to be compatible with
# autolink. On other systems, we use system layout which is what every other
# program uses. Note that the Windows check is static, and will not be affected
# by specific build properties used.
if ! $(layout)
{
    if [ os.name ] = NT
    {
        layout = versioned ;
    }
    else
    {
        layout = system ;
    }
}
layout-$(layout) = true ;

if $(layout) = system && $(build-type) = complete
{
    ECHO error: Cannot use --layout=system with --build-type complete. ;
    ECHO error: Please use either --layout=versioned or --layout=tagged ;
    ECHO error: if you wish to build multiple variants. ;
    if [ os.name ] != NT
    {
        ECHO error: Note that --layout=system is used by default on Unix
            starting with Boost 1.40. ;
    }
    EXIT ;
}

# Possible stage only location.
stage-locate = [ option.get stagedir ] ;
stage-locate ?= stage ;
BOOST_STAGE_LOCATE = $(stage-locate) ;

# Custom build ID.
build-id = [ option.get buildid ] ;
if $(build-id)
{
    BUILD_ID = [ regex.replace $(build-id) "[*\\/:.\"\' ]" _ ] ;
}

# Python build id (for Python libraries only).
python-id = [ option.get "python-buildid" ] ;
if $(python-id)
{
    PYTHON_ID = [ regex.replace $(python-id) [*\\/:.\"\'] _ ] ;
}


################################################################################
#
# 1. 'tag' function adding decorations suitable to the properties if versioned
# or tagged layout is requested. Called from Jamroot.
#
################################################################################

rule tag ( name : type ? : property-set )
{
    if $(type) in STATIC_LIB SHARED_LIB IMPORT_LIB
    {
        local result ;
        if $(layout) = versioned
        {
            result = [ common.format-name
                <base> <toolset> <threading> <runtime> -$(BOOST_VERSION_TAG)
                -$(BUILD_ID)
                : $(name) : $(type) : $(property-set) ] ;
        }
        else if $(layout) = tagged
        {
            result = [ common.format-name
                <base> <threading> <runtime>
                -$(BUILD_ID)
                : $(name) : $(type) : $(property-set) ] ;
        }
        else if $(layout) = system
        {
            result = [ common.format-name
                <base>
                -$(BUILD_ID)
                : $(name) : $(type) : $(property-set) ] ;
        }
        else
        {
            EXIT error: invalid layout '$(layout:E=)' ;
        }

        # Optionally add version suffix. On NT, library with version suffix will
        # not be recognized by linkers. On CYGWIN, we get strage duplicate
        # symbol errors when library is generated with version suffix. On OSX,
        # version suffix is not needed -- the linker expects the
        # libFoo.1.2.3.dylib format. AIX linkers do not accept version suffixes
        # either. Pgi compilers can not accept a library with version suffix.
        if $(type) = SHARED_LIB &&
          ! [ $(property-set).get <target-os> ] in windows cygwin darwin aix &&
          ! [ $(property-set).get <toolset> ] in pgi
        {
            result = $(result).$(BOOST_VERSION)  ;
        }

        return $(result) ;
    }
}

# Specialized tag function to use for libraries linking to Python.
# Appends value of --python-buildid if provided.
rule python-tag ( name : type ? : property-set )
{
    local result = $(name) ;
    if $(type) in STATIC_LIB SHARED_LIB IMPORT_LIB && $(PYTHON_ID)
    {
        result = $(result)-$(PYTHON_ID) ;        
    }
    
    # forward to the boost tagging rule
    return  [ tag $(result) : $(type) : $(property-set) ] ;		
}

################################################################################
#
# 2. Declare targets that build and install all libraries. Specifically:
#
#    - 'stage-proper' that puts all libraries in stage/lib
#    - 'install-proper' that install libraries and headers to system location
#    - 'stage-unversioned' that creates links to libraries without boost version
#       in name
#    - 'install-unversioned' which creates unversioned linked to installed
#       libraries.
#
################################################################################

# Worker function suitable to the 'generate' metatarget. Creates a link to
# 'source', striping any version number information from the name.
rule make-unversioned-links ( project name ? : property-set : sources * )
{
    local filter ;
    if [ modules.peek : NT ]
    {
        filter = (.*[.]lib) ;
    }
    else
    {
        filter =
            (.*[.]so)[.0-9]*
            (.*[.]dylib)
            (.*[.]a) ;
    }

    local result ;
    for local s in $(sources)
    {
        local m = [ MATCH ^(.*)-[0-9_]+$(filter)$ : [ $(s).name ] ] ;
        if $(m)
        {
            local ea = [ $(s).action ] ;
            local ep = [ $(ea).properties ] ;
            local a = [ new non-scanning-action $(s) : symlink.ln : $(ep) ] ;
            result += [ new file-target $(m:J=) exact : [ $(s).type ] :
                $(project) : $(a) ] ;
        }
    }
    return $(result) ;
}

rule filtered-target ( name : message + : sources + : requirements * )
{
    message $(name)-message : warning: $(message) ;
    alias $(name) : $(sources) : $(requirements) ;
    alias $(name) : $(name)-message ;

    local p = [ project.current ] ;
    $(p).mark-target-as-explicit $(name) ;
    $(p).mark-target-as-explicit $(name)-message ;
}

rule declare_install_and_stage_proper_targets ( libraries * : headers * )
{
    local p = [ project.current ] ;
    for local l in $(libraries)
    {
        if $(l) = locale
        {
            filtered-target $(l)-for-install :
                Skipping Boost.Locale library with threading=single. :
                libs/$(l)/build : <threading>multi ;
        }
        else if $(l) = wave
        {
            filtered-target $(l)-for-install :
                Skipping Boost.Wave library with threading=single. :
                libs/$(l)/build : <threading>multi ;
        }
        else if $(l) = thread
        {
            filtered-target $(l)-for-install :
                Skipping Boost.Thread library with threading=single. :
                libs/$(l)/build : <threading>multi ;
        }
        else
        {
            alias $(l)-for-install : libs/$(l)/build ; 
            $(p).mark-target-as-explicit $(l)-for-install ;
        }
    }
    local library-targets = $(libraries)-for-install ;

    install-requirements = <install-source-root>$(BOOST_ROOT)/boost ;

    if $(layout-versioned)
    {
        install-requirements +=
            <install-header-subdir>boost-$(BOOST_VERSION_TAG)/boost ;
    }
    else
    {
        install-requirements += <install-header-subdir>boost ;
    }

    if [ os.name ] = NT
    {
        install-requirements += <install-default-prefix>C:/Boost ;
    }
    else
    {
        install-requirements += <install-default-prefix>/usr/local ;
    }

    p = [ project.current ] ;

    # Complete install.
    package.install install-proper
        : $(install-requirements) <install-no-version-symlinks>on
        :
        : $(libraries)-for-install
        : $(headers)
        ;
    $(p).mark-target-as-explicit install-proper ;

    # Install just library.
    install stage-proper
        : $(libraries)-for-install
        : <location>$(stage-locate)/lib
          <install-dependencies>on <install-type>LIB
          <install-no-version-symlinks>on
        ;
    $(p).mark-target-as-explicit stage-proper ;

    # Commented out as it does not seem to work. Whoever wrote this originally,
    # left some typos in the code, but when that got corrected and the code got
    # enabled - it started reporting ambiguous/duplicate target Boost Build
    # errors. Anyone requiring unversioned staged libraries needs to correct
    # those errors before reenabling this code. For more detailed information
    # see the related Boost library development mailing list thread at
    # 'http://lists.boost.org/Archives/boost/2012/06/194312.php'.
    #                                                (06.07.2012.) (Jurko)
    #~ if $(layout-versioned) && ( [ modules.peek : NT ] || [ modules.peek : UNIX ] )
    #~ {
    #~     generate stage-unversioned : stage-proper :
    #~         <generating-rule>@boostcpp.make-unversioned-links ;
    #~     $(p).mark-target-as-explicit stage-unversioned ;
    #~
    #~     generate install-unversioned : install-proper :
    #~         <generating-rule>@boostcpp.make-unversioned-links ;
    #~     $(p).mark-target-as-explicit install-unversioned ;
    #~ }
    #~ else
    {
        # Create do-nothing aliases.
        alias stage-unversioned ;
        $(p).mark-target-as-explicit stage-unversioned ;
        alias install-unversioned ;
        $(p).mark-target-as-explicit install-unversioned ;
    }
}


################################################################################
#
#  3. Declare top-level targets 'stage' and 'install'. These examine the
#  --build-type option and, in case it is 'complete', build the 'install-proper'
#  and 'stage-proper' targets with a number of property sets.
#
################################################################################

class top-level-target : alias-target-class
{
    import modules ;

    rule __init__ ( name : project : sources * : requirements *
        : default-build * : usage-requirements * )
    {
        alias-target-class.__init__ $(name) : $(project) : $(sources) :
            $(requirements) : $(default-build) : $(usage-requirements) ;

        self.build-type = [ modules.peek boostcpp : build-type ] ;
        # On Linux, we build the release variant by default, since few users
        # will ever want to debug C++ Boost libraries, and there is no ABI
        # incompatibility between debug and release variants. We build shared
        # and static libraries since that is what most packages seem to provide
        # (.so in libfoo and .a in libfoo-dev).
        self.minimal-properties = [ property-set.create <variant>release
            <threading>multi <link>shared <link>static <runtime-link>shared ] ;
        # On Windows, new IDE projects use:
        #
        #   runtime-link=dynamic, threading=multi, variant=(debug|release)
        #
        # and in addition, C++ Boost's autolink defaults to static linking.
        self.minimal-properties-win = [ property-set.create <variant>debug
            <variant>release <threading>multi <link>static <runtime-link>shared
            ] ;

        self.complete-properties = [ property-set.create
            <variant>debug <variant>release
            <threading>single <threading>multi
            <link>shared <link>static
            <runtime-link>shared <runtime-link>static ] ;
    }

    rule generate ( property-set )
    {
        modules.poke : top-level-targets : [ modules.peek : top-level-targets ]
            $(self.name) ;
        if $(self.build-type) = minimal
        {
            local expanded ;

            local os = [ $(property-set).get <target-os> ] ;
            # Because we completely override the parent's 'generate' we need to
            # check for default feature values ourselves.
            if ! $(os)
            {
                os = [ feature.defaults <target-os> ] ;
                os = $(os:G=) ;
            }

            if $(os) = windows
            {
                expanded = [ targets.apply-default-build $(property-set)
                    : $(self.minimal-properties-win) ] ;
            }
            else
            {
                expanded = [ targets.apply-default-build $(property-set)
                    : $(self.minimal-properties) ] ;
            }
            return [ build-multiple $(expanded) ] ;
        }
        else if $(self.build-type) = complete
        {
            local expanded = [ targets.apply-default-build $(property-set)
                : $(self.complete-properties) ] ;

            # Filter inappopriate combinations.
            local filtered ;
            for local p in $(expanded)
            {
                # See comment in handle-static-runtime regarding this logic.
                if [ $(p).get <link> ] = shared
                    && [ $(p).get <runtime-link> ] = static
                    && [ $(p).get <toolset> ] != cw
                {
                    # Skip this.
                }
                else
                {
                    filtered += $(p) ;
                }
            }
            return [ build-multiple $(filtered) ] ;
        }
        else
        {
            import errors ;
            errors.error "Unknown build type" ;
        }
    }

    rule build-multiple ( property-sets * )
    {
        local usage-requirements = [ property-set.empty ] ;
        local result ;
        for local p in $(property-sets)
        {
            local r = [ alias-target-class.generate $(p) ] ;
            if $(r)
            {
                usage-requirements = [ $(usage-requirements).add $(r[1]) ] ;
                result += $(r[2-]) ;
            }
        }
        return $(usage-requirements) [ sequence.unique $(result) ] ;
    }
}

rule declare_top_level_targets ( libraries * : headers * )
{
    declare_install_and_stage_proper_targets $(libraries) : $(headers) ;

    targets.create-metatarget top-level-target : [ project.current ]
        : install
        : install-proper install-unversioned
        ;
    targets.create-metatarget top-level-target : [ project.current ]
        : stage
        : stage-proper stage-unversioned
        ;

    p = [ project.current ] ;
    $(p).mark-target-as-explicit install stage ;

    # This target is built by default, and will forward to 'stage' after
    # producing some explanations.
    targets.create-metatarget top-level-target : [ project.current ]
        : forward
        : explain stage
        ;
}


stage-abs = [ path.native [ path.root $(stage-locate)/lib [ path.pwd ] ] ] ;


################################################################################
#
# 4. Add hook to report configuration before the build, and confirmation with
# setup instructions after the build.
#
################################################################################

message explain : "\nBuilding the Boost C++ Libraries.\n\n" ;
local p = [ project.current ] ;
$(p).mark-target-as-explicit explain ;

rule pre-build ( )
{
    local tl = [ modules.peek : top-level-targets ] ;
    if stage in $(tl) || install in $(tl)
    {
        # FIXME: Remove 'if' when Boost regression tests start using trunk bjam.
        if PAD in [ RULENAMES ]
        {
            configure.print-component-configuration ;
        }
    }
}
IMPORT $(__name__) : pre-build : : $(__name__).pre-build ;
build-system.set-pre-build-hook $(__name__).pre-build ;

# FIXME: Revise stage_abs.
rule post-build ( ok ? )
{
    if forward in [ modules.peek : top-level-targets ]
    {
        if $(ok)
        {
            local include-path = [ path.native $(BOOST_ROOT) ] ;
            ECHO "

The Boost C++ Libraries were successfully built!

The following directory should be added to compiler include paths:

    $(include-path)

The following directory should be added to linker library paths:

    $(stage-abs)
" ;
        }
    }
}
IMPORT $(__name__) : post-build : : $(__name__).post-build ;
build-system.set-post-build-hook $(__name__).post-build ;


################################################################################
#
# 5. Top-level setup.
#
################################################################################

# Decides which libraries are to be installed by looking at --with-<library>
# --without-<library> arguments. Returns the list of directories under "libs"
# which must be built and installed.
#
rule libraries-to-install ( existing-libs * )
{
    local argv = [ modules.peek : ARGV ] ;
    local with-parameter = [ MATCH ^--with-(.*) : $(argv) ] ;
    local without-parameter = [ MATCH ^--without-(.*) : $(argv) ] ;

    if ! $(with-parameter) && ! $(without-parameter)
    {
        # Nothing is specified on command line. See if maybe project-config.jam
        # has some choices.
        local libs = [ modules.peek project-config : libraries ] ;
        with-parameter = [ MATCH ^--with-(.*) : $(libs) ] ;
        without-parameter = [ MATCH ^--without-(.*) : $(libs) ] ;
    }

    # Do some checks.
    if $(with-parameter) && $(without-parameter)
    {
        EXIT error: both --with-<library> and --without-<library> specified ;
    }

    local wrong = [ set.difference $(with-parameter) : $(existing-libs) ] ;
    if $(wrong)
    {
        EXIT error: wrong library name '$(wrong[1])' in the --with-<library>
            option. ;
    }
    local wrong = [ set.difference $(without-parameter) : $(existing-libs) ] ;
    if $(wrong)
    {
        EXIT error: wrong library name '$(wrong[1])' in the --without-<library>
            option. ;
    }

    if $(with-parameter)
    {
        return [ set.intersection $(existing-libs) : $(with-parameter) ] ;
    }
    else
    {
        return [ set.difference $(existing-libs) : $(without-parameter) ] ;
    }
}

rule declare-targets ( all-libraries * : headers * )
{
    configure.register-components $(all-libraries) ;

    # Select the libraries to install.
    libraries = [ libraries-to-install $(all-libraries) ] ;
    configure.components-building $(libraries) ;

    if [ option.get "show-libraries" : : true ]
    {
        ECHO The following libraries require building: ;
        for local l in $(libraries)
        {
            ECHO "    - $(l)" ;
        }
        EXIT ;
    }

    declare_top_level_targets $(libraries) : $(headers) ;
}

# Returns the properties identifying the toolset. We'll use them
# below to configure checks. These are essentially same as in
# configure.builds, except we don't use address-model and
# architecture - as we're trying to detect them here.
#
rule toolset-properties ( properties * )
{
    local toolset = [ property.select <toolset> : $(properties) ] ;
    local toolset-version-property = "<toolset-$(toolset:G=):version>" ;
    return [ property.select <target-os> <toolset> $(toolset-version-property) : $(properties) ] ;
}

feature.feature deduced-address-model : 32 64 : propagated optional composite hidden ;
feature.compose <deduced-address-model>32 : <address-model>32 ;
feature.compose <deduced-address-model>64 : <address-model>64 ;

rule deduce-address-model ( properties * )
{
    local result ;
    local filtered = [ toolset-properties $(properties) ] ;

    if [ configure.builds /boost/architecture//32 : $(filtered) : 32-bit ]
    {
        result = 32 ;
    }
    else if [ configure.builds /boost/architecture//64 : $(filtered) : 64-bit ]
    {
        result = 64 ;
    }

    if $(result)
    {
        # Normally, returning composite feature here is equivalent to forcing
        # consituent properties as well. But we only want to indicate toolset
        # deduced default, so also pick whatever address-model is explicitly
        # specified, if any.
        result = <deduced-address-model>$(result) [ property.select <address-model> : $(properties) ] ;
    }
    return $(result) ;
}

rule address-model ( )
{
    return <conditional>@boostcpp.deduce-address-model ;
}

local deducable-architectures = arm mips1 power sparc x86 combined ;
feature.feature deduced-architecture : $(deducable-architectures) : propagated optional composite hidden ;
for a in $(deducable-architectures)
{
    feature.compose <deduced-architecture>$(a) : <architecture>$(a) ;
}

rule deduce-architecture ( properties * )
{
    local result ;
    local filtered = [ toolset-properties $(properties) ] ;
    if [ configure.builds /boost/architecture//arm : $(filtered) : arm ]
    {
        result = arm ;
    }
    else if [ configure.builds /boost/architecture//mips1 : $(filtered) : mips1 ]
    {
        result = mips1 ;
    }
    else if [ configure.builds /boost/architecture//power : $(filtered) : power ]
    {
        result = power ;
    }
    else if [ configure.builds /boost/architecture//sparc : $(filtered) : sparc ]
    {
        result = sparc ;
    }
    else if [ configure.builds /boost/architecture//x86 : $(filtered) : x86 ]
    {
        result = x86 ;
    }
    else if [ configure.builds /boost/architecture//combined : $(filtered) : combined ]
    {
        result = combined ;
    }

    if $(result)
    {
        # See comment in deduce-address-model.
        result = <deduced-architecture>$(result) [ property.select <architecture> : $(properties) ] ;
    }
    return $(result) ;
}

rule architecture ( )
{
    return <conditional>@boostcpp.deduce-architecture ;
}