require 'rbuild-cfamily'

if RUBY_PLATFORM =~ /darwin/ then

    def build_rgc(arch, sdk)
        objects = build_objects(
            :sources => $sources,
            :source_to_object_name => Proc.new do |source|
                source.sub(/Source\/(.*)\..*/, "Build/#{arch}/\\1.o")
            end,
            :extra_cflags =>
                "-I../Thirdparty/Root/#{arch}/include " +
                "-I../Thirdparty/Root/#{arch}/include/ruby " +
                "-I../Thirdparty/Root/#{arch}/include/freetype2 " +
                "-F../Thirdparty/Root/universal/Frameworks " +
                "-arch #{arch} " +
                "-isysroot /Developer/SDKs/MacOSX#{sdk}.sdk")
        archives = [
            "../Thirdparty/Root/#{arch}/lib/libfreetype.a",
            "../Thirdparty/Root/#{arch}/lib/libpng.a",
            "../Thirdparty/Root/#{arch}/lib/libruby-static.a"
        ]
        
        build_executable(
            :executable => "Build/#{arch}/RubyGameCommon",
            :extra_linker_flags =>
                "-arch #{arch} " +
                "-isysroot /Developer/SDKs/MacOSX#{sdk}.sdk " +
                "-lstdc++ -lSystem",
            :objects => objects,
            :archives => archives,
            :framework_search_paths => $framework_search_paths,
            :frameworks => $frameworks,
            :libraries => $libraries)
    end

    $sources = Dir['Source/*.c']
    $sources -= ['Source/main.c']
    $sources += Dir['Source/*.m']

    $framework_search_paths = ['../Thirdparty/Root/universal/Frameworks']
    $frameworks = ['Cocoa', 'CoreAudio', 'OpenAL', 'OpenGL', 'GLUT']

    $libraries = ['System', 'z']

    build_rgc('ppc', '10.3.9')
    build_rgc('i386', '10.4u')

    build(
        :targets => ['RubyGameCommon'],
        :dependencies => ['Build/ppc/RubyGameCommon', 'Build/i386/RubyGameCommon'],
        :command => "lipo -create -output RubyGameCommon Build/ppc/RubyGameCommon Build/i386/RubyGameCommon",
        :message => "Building Universal Binary for RubyGameCommon")

elsif RUBY_PLATFORM =~ /linux/ then

    ruby_header_dir = '.'
    $LOAD_PATH.each do |path|
        if File.exists?("#{path}/ruby.h") then
            ruby_header_dir = path
            break
        end
    end
    
    ruby_library = 'ruby'
    ['ruby', 'ruby1.8'].each do |library|
        if File.exists?("/usr/lib/lib#{library}.so") then
            ruby_library = library
            break
        end
    end

    objects = build_objects(
        :extra_cflags => "-Ddeprecated=nodeprecated -I#{ruby_header_dir} #{`freetype-config --cflags`.chomp}",
        :sources => Dir['Source/*.c'])
    build_executable(
        :executable => "RubyGameCommon",
        :objects => objects,
        :library_search_paths => [],
        :libraries => [
            'GL', 'GLU', 'glut', 'X11', 'alut', 'openal', 'freetype', 'png', 'z',
            ruby_library])

end