anchor.diff:          urls
           outputHash
           outputHashAlgo
  -        fullOpts
           purgeTimestamps;
         insecureHashOutput = true;
       };
  
positive.code:       zlib
      ];
    };
    version = "2.0.0";
  in
  stdenv.mkDerivation rec {
    name = "argyllcms-${version}";
  
negative.code:   src = fetchzip {
      version = 6;
      url = "http://www.argyllcms.com/Argyll_V${version}_src.zip";
      multihash = "QmdFLqmgW29xbkVh6zRGLjNMWQGcVb1A7cGAba4s7Xv3KD";
      purgeTimestamps = true;
      sha256 = "718b4d3018e4d92dcae06a098f13378f55024e8622b12120a59dd67f17cc59d2";
    };
  
    nativeBuildInputs = [
  