#  Copyright (C) Christopher Currie 2003. Permission to copy, use,
#  modify, sell and distribute this software is granted provided this
#  copyright notice appears in all copies. This software is provided
# "as is" without express or implied warranty, and with no claim as to
#  its suitability for any purpose.

#  Please see http://article.gmane.org/gmane.comp.lib.boost.build/3389/
#  for explanation why it's a separate toolset.

import feature : feature ;
import toolset : flags ;
import type ;
import common ;
import generators ;

toolset.register darwin ;
import gcc ;
toolset.inherit-generators darwin : gcc ;

generators.override darwin.prebuilt : builtin.prebuilt ;
generators.override darwin.searched-lib-generator : searched-lib-generator ;

toolset.inherit-rules darwin : gcc ;
toolset.inherit-flags darwin : gcc     
  :  # On Darwin, static runtime is just not supported. So don't inherit
     # any flags settings for <runtime-link>static
     <runtime-link>static
  ;

# No additional initialization should be necessary
rule init ( version ? : command * : options * )
{
    local condition = [ common.check-init-parameters darwin : version $(version) ] ;    
    local command = [ common.get-invocation-command darwin : g++ : $(command) ] ;
    
    common.handle-options darwin : $(condition) : $(command) : $(options) ;
    
    # GCC 4.0 and higher in Darwin does not have -fcoalesce-templates.
    local gccversion = [ SHELL "$(command) -dumpversion" ] ;
    if $(gccversion) < "4.0.0"
    {
        flags darwin.compile.c++ OPTIONS : -fcoalesce-templates ;
    }

    gcc.init-link-flags darwin darwin $(condition) ;
    
    flags darwin.link NEED_STRIP $(condition)/<debug-symbols>off : "" ;        
}

feature framework : : free ;

flags darwin.compile OPTIONS <link>shared : -dynamic ;
flags darwin.compile OPTIONS : -Wno-long-double -no-cpp-precomp  ;

flags darwin.link FRAMEWORK <framework> ;

# This is flag is useful for debugging the link step
# uncomment to see what libtool is doing under the hood
# flags darwin.link.dll OPTIONS : -Wl,-v ;

_ = " " ;

# set up the -F option to include the paths to any frameworks used.
local rule prepare-framework-path ( target + )
{
    local framework-path = [ on $(target) return $(FRAMEWORK:D) ] ;
    
    if $(framework-path)
    {
        FRAMEWORK_PATH on $(target) += -F$(framework-path) ;
    }
    else
    {
        FRAMEWORK_PATH on $(target) = ;
    }
}

rule link
{
    prepare-framework-path $(<) ;
}

actions link bind LIBRARIES
{
    $(CONFIG_COMMAND) -L"$(LINKPATH)" -o "$(<)" "$(>)" "$(LIBRARIES)" -l$(FINDLIBS-SA) -l$(FINDLIBS-ST) $(FRAMEWORK_PATH) -framework$(_)$(FRAMEWORK:D=) $(OPTIONS) $(USER_OPTIONS)
    $(NEED_STRIP)strip $(NEED_STRIP)"$(<)"
}

rule link.dll
{
    prepare-framework-path $(<) ;
}

actions link.dll bind LIBRARIES
{
    $(CONFIG_COMMAND) -dynamiclib -L"$(LINKPATH)" -o "$(<)" "$(>)" "$(LIBRARIES)" -l$(FINDLIBS-SA) -l$(FINDLIBS-ST) $(FRAMEWORK_PATH) -framework$(_)$(FRAMEWORK:D=) $(OPTIONS) $(USER_OPTIONS)
}

actions piecemeal archive
{
    ar -c -r -s $(ARFLAGS) "$(<:T)" "$(>:T)"
}