anchor.diff:  
       patchelf --set-interpreter ${glibc}/lib/ld-linux.so.2 \
                --set-rpath ${stdenv.gcc.gcc}/lib:${libX11}/lib:${mesa}/lib \
  -             "$out/res/Tibia" || true
  +             "$out/res/Tibia"
   
       # We've patchelf'd the files. The main ‘Tibia’ binary is a bit
       # dumb so it looks for ‘./Tibia.dat’. This requires us to be in
  
positive.code:   '';
  
    meta = {
      description = "Top-down MMORPG set in a fantasy setting";
      homepage = "http://tibia.com";
      license = "unfree";
      maintainers = with stdenv.lib.maintainers; [ fuuzetsu ];
  
negative.code: with stdenv.lib;
  assert stdenv.isi686;
  stdenv.mkDerivation {
    name = "tibia-10.39";
  
    src = fetchurl {
      url = http://static.tibia.com/download/tibia1039.tgz;
      sha256 = "0401sdg2b4jb6350z841f9xjipi37z4z82bc72rs0chgdp363n79";
    };
  
    shell = stdenv.shell;
  