anchor.diff: -{ stdenv, fetchFromGitHub, fetchsvn, cmake, pkgconfig
  +{ stdenv, fetchFromGitHub, fetchsvn, cmake, pkgconfig, makeWrapper
   , openal, freealut, libGLU, libGL, libvorbis, libogg, gettext, curl, freetype
   , fribidi, libtool, bluez, libjpeg, libpng, zlib, libX11, libXrandr, enet, harfbuzz }:
   
   let
     dir = "stk-code";
  +  assets = fetchsvn {
  +    url    = "https://svn.code.sf.net/p/supertuxkart/code/stk-assets";
  +    rev    = "18212";
  +    sha256 = "1dyj8r5rfifhnhayga8w8irkpa99vw57xjmy74cp8xz8g7zvdzqf";
  +    name   = "stk-assets";
  +  };
   
   in stdenv.mkDerivation rec {
     pname = "supertuxkart";
  
positive.code:       sha256 = "01vxxl94583ixswzmi4caz8dk64r56pn3zxh7v63zml60yfvxbvp";
        name   = dir;
      })
      (fetchsvn {
        url    = "https://svn.code.sf.net/p/supertuxkart/code/stk-assets";
        rev    = "18212";
        sha256 = "1dyj8r5rfifhnhayga8w8irkpa99vw57xjmy74cp8xz8g7zvdzqf";
        name   = "stk-assets";
      })
    ];
  
    nativeBuildInputs = [ cmake gettext libtool pkgconfig ];
  
    buildInputs = [
      libX11 libXrandr
  
negative.code:   cmakeFlags = [
      "-DBUILD_RECORDER=OFF"         # libopenglrecorder is not in nixpkgs
      "-DUSE_SYSTEM_ANGELSCRIPT=OFF" # doesn't work with 2.31.2 or 2.32.0
      "-DCHECK_ASSETS=OFF"
    ];
  
    # Obtain the assets directly from the fetched store path, to avoid duplicating assets across multiple engine builds
    preFixup = ''
      wrapProgram $out/bin/supertuxkart --set-default SUPERTUXKART_ASSETS_DIR "${assets}"
    '';
  
    sourceRoot = dir;
  
  