new_contents: from toolchain import Recipe, shprint
  import sh
  
  
  class LibSDL2MixerRecipe(Recipe):
      version = "2.0.0"
      url = "http://www.libsdl.org/projects/SDL_mixer/release/SDL2_mixer-{version}.tar.gz"
      library = "Xcode-iOS/build/Release-{arch.sdk}/libSDL2_mixer.a"
      include_dir = "SDL_mixer.h"
      depends = ["sdl2"]
  
      def build_arch(self, arch):
          shprint(sh.xcodebuild,
                  "ONLY_ACTIVE_ARCH=NO",
                  "ARCHS={}".format(arch.arch),
                  "HEADER_SEARCH_PATHS=$HEADER_SEARCH_PATHS {}".format(" ".join(arch.include_dirs)),
                  "-sdk", arch.sdk,
                  "-project", "Xcode-iOS/SDL_mixer.xcodeproj",
                  "-target", "Static Library",
                  "-configuration", "Release")
  
  
  recipe = LibSDL2MixerRecipe()
  
  
subject: add new recipe