anchor.diff: -{ stdenv, fetchgit, utillinux, ncurses, flex, bison }:
  +{ stdenv, fetchFromGitHub, fetchpatch, utillinux, ncurses, flex, bison }:
   
   stdenv.mkDerivation rec {
     pname = "unnethack";
  -  version = "5.2.0";
  +  version = "5.3.2";
   
  -  src = fetchgit {
  -    url = "https://github.com/UnNetHack/UnNetHack";
  -    rev = "refs/tags/${version}";
  -    sha256 = "088gd2c7v95f2pm9ky38i28sz73mnsksr2p2hhhflkchxncd21f1";
  +  src = fetchFromGitHub {
  +    name = "UnNetHack";
  +    owner = "UnNetHack";
  +    repo = "UnNetHack";
  +    rev = version;
  +    sha256 = "1rg0mqyplgn3dfh3wz09a600qxk7aidqw4d84kyiincljvhyb7ps";
     };
   
     buildInputs = [ ncurses ];
  
positive.code:     license = "nethack";
      platforms = platforms.all;
      maintainers = with maintainers; [ abbradar ];
    }; 
  }
  
negative.code:                    ];
  
    makeFlags = [ "GAMEPERM=744" ];
    patches = [
      # fix regression with bison, merged in master
      (fetchpatch {
        name = "fix-bison.patch";
        url = "https://github.com/UnNetHack/UnNetHack/commit/04f0a3a850a94eb8837ddcef31303968240d1c31.patch";
        sha256 = "1zblbwqqz9nx16k6n31wi2hdvz775lvzmkjblmrx18nbm4ylj0n9";
      })
    ];
  
    enableParallelBuilding = true;
  
  