SDL = {
	basepath = PathPath(_REQUIREDNAME),

	OptFind = function (name, required)
		local check = function(option)
			option.value = nil
			option.use_sdlconfig = nil
			option.use_win32sdl = nil
			option.use_osxframework = nil
			option.lib_path = nil
			
			if ExecuteSilent("sdl-config") > 0 and ExecuteSilent("sdl-config --cflags") == 0 then
				option.value = 1
				option.use_sdlconfig = 1
			end
			
			if platform == "win32" then
				option.value = 1
				option.use_win32sdl = 1
			end
			
			if platform == "macosx" then
				option.value = 1
				option.use_osxframework = 1
			end
		end
		
		local apply = function(option, settings)
			if option.use_sdlconfig then
				settings.cc.flags = settings.cc.flags .. " -I/usr/include/SDL "
				settings.linker.flags = settings.linker.flags .. " `sdl-config --libs` "
			end

			if option.use_osxframework then
				client_settings.linker.frameworks:add("SDL")
				client_settings.cc.includes:add("/Library/Frameworks/SDL.framework/Headers")
			end

			if option.use_win32sdl then
				settings.cc.includes:add(SDL.basepath .. "/include")
				settings.linker.libpath:add(SDL.basepath .. "/vc2005libs")
				settings.linker.libs:add("SDL")
				settings.linker.libs:add("SDLmain")
			end
		end
		
		local save = function(option, output)
			output:option(option, "value")
			output:option(option, "use_sdlconfig")
			output:option(option, "use_win32sdl")
			output:option(option, "use_osxframework")
		end
		
		local display = function(option)
			if option.value then
				if option.use_sdlconfig then return "using sdl-config" end
				if option.use_win32sdl then return "using supplied win32 libraries" end
				if option.use_osxframework then return "using osx framework" end
				return "using unknown method"
			else
				if option.required then
					return "not found (required)"
				else
					return "not found (optional)"
				end
			end
		end
		
		local o = MakeOption(name, 0, check, save, display)
		o.apply = apply
		o.include_path = nil
		o.lib_path = nil
		o.required = required
		return o
	end
}