anchor.diff:      # Gnupg depends on this so we have to decouple this fetch from the rest of the build.
       srcVerification = fetchurl rec {
         failEarly = true;
  -      urls = tarballUrls "3.5" "11";
  +      urls = tarballUrls "3.5" "12";
         pgpsigUrls = map (n: "${n}.sig") urls;
         pgpKeyFingerprint = "1F42 4189 05D8 206A A754  CCDC 29EE 58B9 9686 5171";
         inherit (src) outputHashAlgo;
  -      outputHash = "51765cc5579e250da77fbd7871507c517d01b15353cc40af7b67e9ec7b6fe28f";
  +      outputHash = "63cb39a5eaa029381df2e49a74cfb7be89fc4a592445191818ffe1e66bde57cb";
       };
     };
   
  
positive.code:   src = fetchurl {
      urls = tarballUrls major minor;
      hashOutput = false;
      sha256 = "51765cc5579e250da77fbd7871507c517d01b15353cc40af7b67e9ec7b6fe28f";
    };
  
    # This fixes some broken parallel dependencies
  
negative.code:   ];
  
    major = "3.5";
    minor = "12";
    version = "${major}.${minor}";
  in
  stdenv.mkDerivation rec {
  