anchor.diff:  , Cocoa
   , IOKit
   , libsamplerate
  +, shaderc
   }:
   let
     assets = fetchsvn {
  
positive.code:   ];
  
    buildInputs = [
      SDL2
      glew
      libvorbis
  
negative.code: stdenv.mkDerivation rec {
  
    pname = "supertuxkart";
    version = "1.4";
  
    src = fetchFromGitHub {
      owner = "supertuxkart";
      repo = "stk-code";
      rev = version;
      hash = "sha256-gqdaVvgNfCN40ZO/9y8+vTeIJPSq6udKxYZ/MAi4ZMM=";
    };
  
    postPatch = ''
  