# Boost.Iostreams Library bzip2 Jamfile

# (C) Copyright Jonathan Turkanis 2004
# 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.)

# See http://www.boost.org/libs/iostreams for documentation.

# For use in conjunction with the bzip2 data compression library by
# Jean-loup Gailly and Mark Adler. See http://www.bzip2.org/ to obtain bzip2
# if it is not installed on your system, or if you wish to build it with
# different compiler or linker options.
         
rule bzip2_config 
{
    if $(NO_COMPRESSION)
    {
         NO_BZIP2 = 1 ;
    } 

    if $(NT) && ! $(BZIP2_SOURCE) && ! $(BZIP2_INCLUDE)
    {
         ECHO ****************************************************** ;
         ECHO Building Boost.Iostreams with bzip2 support disabled. ;
         ECHO To enable bzip2, consult the Boost.Iostreams documentation ;
         ECHO ****************************************************** ;   
         NO_BZIP2 = 1 ;
    }
    
    if ! $(NO_BZIP2) 
    {
        local SOURCES = blocksort bzlib compress crctable 
                        decompress huffman randtable ; 
        BZIP2_INCLUDE ?= $(BZIP2_SOURCE) ;

        # define BZIP2_BINARY 
        if ! $(BZIP2_SOURCE) && ! $(BZIP2_BINARY)
        {
            if $(NT) && ! [ MATCH (.*gcc.*) : $(TOOLS) ]
            {
                WINDOWS = 1 ;
                BZIP2_BINARY = "libbz2" ;
            }
            else 
            {   
                BZIP2_BINARY = "bz2" ;
            }
        }

        # declare boost_bzip2 boost_bzip2
        if $(BZIP2_SOURCE)
        {
            template bzip2_common
                : # sources
                $(BZIP2_SOURCE)/$(SOURCES).c
                : # build requirements
                [ common-names ]  # magic for install and auto-link features
                <include>$(BZIP2_INCLUDE)
                : # build variants
                debug release 
            ;       

            lib boost_bzip2
                : # sources
                <template>bzip2_common
                : # build requirements
                : # build variants
                ;

            dll boost_bzip2
                : # sources
                <template>bzip2_common
                : # build requirements
                <define>BZIP2_DLL=1 # tell source we're building dll's
                <runtime-link>dynamic # build only for dynamic runtimes
                : # build variants
                ;
                
            install bzip2 lib
                : <lib>boost_bzip2 
                ;   
        }
    }
}

bzip2_config ;

template bzip2
    : # sources
      [ unless $(NO_BZIP2) : ../src/bzip2.cpp ]
      [ cond $(BZIP2_SOURCE) : <lib>boost_bzip2 : ]
    : # build requirements
      [ unless $(NO_BZIP2) : <include>$(BZIP2_INCLUDE) ]
      [ unless $(NO_BZIP2) OR $(BZIP2_SOURCE) 
        : <define>BOOST_BZIP2_BINARY=$(BZIP2_BINARY) ]
      [ cond $(BZIP2_LIBPATH) : <library-path>$(BZIP2_LIBPATH) : ]
      [ unless $(BZIP2_SOURCE) : <find-library>$(BZIP2_BINARY) : ]
    : # build variants
   ;          

# end