#~ Copyright 2003, Rene Rivera.
#~ Use, modification and distribution are 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)

if --help in $(ARGV)
{
    ECHO "
Usage:
    bjam [options] [install|stage]

    * install               Installs to the configured location(s).
    * stage                 Stages the build products only to common stage location.

Options:
    --help                  This message.
    -sTOOLS=<toolsets>      Indicates the tools to build with.

Locations:
    --prefix=PREFIX         Install architecture independent files here.
                            Default; C:\\Boost on Win32
                            Default; /usr/local on Unix. Linux, etc.
    --exec-prefix=EPREFIX   Install architecture dependent files here.
                            Default; PREFIX
    --libdir=DIR            Install libraries here.
                            Default; EPREFIX/lib
    --includedir=DIR        Install source headers here.
                            Default; PREFIX/include
    --builddir=DIR          Build in this location instead of building
                            within the distribution tree. Recomended!
    --stagedir=DIR          When staging only, stage to the location.
                            Default; ./stage

Features:
    --without-<library>     Do not build, stage, or install the specified
                            <library>. By default all libraries attempt to build.
    --with-python-root[=PYTHON_ROOT]
                            Build Boost.Python libraries with the Python
                            devel packages located at PYTHON_ROOT.
                            Default PYTHON_ROOT; C:\\tools\\python on Win32.
                            Default PYTHON_ROOT; /usr/local on Unix, Linux, etc.
                            Default PYTHON_ROOT; /usr on Cygwin.
    --with-pydebug          Build Boost.Python libraries using the
                            Python debug runtime.
" ;
    EXIT "" ;
}

local with-install = ;
local with-stage = ;

# build only, or build+install
if install in $(ARGV)
{
    with-install = install ;
    with-stage = ;
}

# stage only? (no install, only build and stage to a common dir)
if stage in $(ARGV)
{
    with-stage = stage ;
    with-install = ;
}

# possible stage only location
local stage-locate = [ MATCH "^--stagedir=(.*)" : $(ARGV) ] ;
stage-locate ?= stage ;

# architecture independent files
local boost-locate = [ unless $(with-stage) : [ MATCH "^--prefix=(.*)" : $(ARGV) ] : $(stage-locate) ] ;
if $(NT) { boost-locate ?= C:\\Boost ; }
else if $(UNIX) { boost-locate ?= /usr/local ; }

# architecture dependent files
local exec-locate = [ MATCH "^--exec-prefix=(.*)" : $(ARGV) ] ;
exec-locate ?= $(boost-locate) ;

# object code libraries
local lib-locate = [ MATCH "^--libdir=(.*)" : $(ARGV) ] ;
lib-locate ?= $(exec-locate)/lib ;

# where to build
local all-locate = [ MATCH "^--builddir=(.*)" : $(ARGV) ] ;
ALL_LOCATE_TARGET ?= $(all-locate) ;

# source header files
local include-locate = [ MATCH "^--includedir=(.*)" : $(ARGV) ] ;
include-locate ?= $(boost-locate)/include ;

# location of python
local python-root = [ MATCH "^--with-python-root=(.*)" : $(ARGV) ] ;
PYTHON_ROOT ?= $(python-root) ;

# variant for pydebug build
local with-debug-python ;
if --with-pydebug in $(ARGV)
{
    with-debug-python = debug-python ;
}

# libraries to disable building, etc.
local without-libraries = [ MATCH "^--without-(.*)" : $(ARGV) ] ;

#
project-root ;

# bring in the rules for python
import python ;

#
local version-tag = [ MATCH "^([^.]+).([^.]+)" : $(BOOST_VERSION) ] ;
version-tag = $(version-tag:J="_") ;

#
install-subinclude
    [ MATCH ^(.*build[/\\:]$(JAMFILE))$ : [ glob-tree $(BOOST_ROOT)/libs : $(JAMFILE) ] ]
    : <exclude>$(without-libraries) ;

if [ install-sources lib ]
{
    local lib-build =
        debug release
        [ cond $(with-debug-python) : debug-python ]
        [ cond $(NT) : <runtime-link>static/dynamic ]
        <threading>single/multi
        ;
    stage $(lib-locate:D=)
        :
            [ install-sources lib ]
        :
            <locate>$(lib-locate:D)
            common-variant-tag
            [ cond $(with-install) : <target>install : <target>all ]
            [ cond $(with-stage) : <target>stage : <target>all ]
        :
            $(lib-build)
            [ unless $(with-install) $(with-stage) : <suppress>true ]
        ;
}

stage $(include-locate:D=)/boost-$(version-tag)
    :
        [ glob-tree $(BOOST_ROOT)/boost/compatibility/cpp_c_headers : c* ]
        [ glob-tree $(BOOST_ROOT)/boost : *.hpp *.ipp ]
    :
        <locate>$(include-locate:D)
        <tree-subdirs>$(BOOST_ROOT)
        [ cond $(with-install) : <target>install : <target>all ]
    :
        [ unless $(with-install) : <suppress>true ]
    ;