import property-set ;
import common ;

# This rule is called by Boost.Build to determine the name of
# target. We use it to encode build variant, compiler name and
# boost version in the target name
rule tag ( name : type ? : property-set )
{
    if $(type) in STATIC_LIB SHARED_LIB IMPORT_LIB
    {
        if $(layout) = versioned
        {
            local result = [ common.format-name
                <base> <toolset> <threading> <runtime> -$(BOOST_VERSION_TAG)
                -$(BUILD_ID)
                : $(name) : $(type) : $(property-set) ] ;
            
            # Optionally add version suffix.
            # On NT, library with version suffix won't 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 expets
            # libFoo.1.2.3.dylib format.
            # AIX linkers don't accept version suffixes either.
            if $(type) = SHARED_LIB &&
              ! ( [ $(property-set).get <target-os> ] in windows cygwin darwin aix )
            {
                result = $(result).$(BOOST_VERSION)  ;
            }
            
            return $(result) ;
        }
        else
        {
            return [ common.format-name
                <base> <threading> <runtime> -$(BUILD_ID)
                : $(name) : $(type) : $(property-set) ] ;
        }
    }
}

rule make-name ( properties * )
{
    local name = [ tag boost_program_options : SHARED_LIB 
        : [ property-set.create $(properties) ] ] ;
    return <name>$(name:S=) ;
}

searched-lib boost_program_options : : <conditional>@make-name ;

exe a : a.cpp boost_program_options ;