anchor.diff:    src = fetchurl {
       urls = tarballUrls major minor;
       hashOutput = false;
  -    sha256 = "2ab9e3c0131fcd9142382f37ba9c6d20022b76cba83560cbcaa8e4002d71fb72";
  +    sha256 = "20b10d2c9994bc032824314714d0e84c0f19bdb3d715d8ed55beb7364a8ebaed";
     };
   
     # This fixes some broken parallel dependencies
  
positive.code:     # Gnupg depends on this so we have to decouple this fetch from the rest of the build.
      srcVerification = fetchurl rec {
        failEarly = true;
        urls = tarballUrls "3.6" "0";
        pgpsigUrls = map (n: "${n}.sig") urls;
        pgpKeyFingerprint = "1F42 4189 05D8 206A A754  CCDC 29EE 58B9 9686 5171";
        inherit (src) outputHashAlgo;
        outputHash = "2ab9e3c0131fcd9142382f37ba9c6d20022b76cba83560cbcaa8e4002d71fb72";
      };
    };
  
  
negative.code:   ];
  
    major = "3.6";
    minor = "1";
    version = "${major}.${minor}";
  in
  stdenv.mkDerivation rec {
  