anchor.diff:  
     passthru = {
       inherit pythonSupport;
  +
  +    updateScript = gnome.updateScript {
  +      packageName = pname;
  +      versionPolicy = "none";
  +    };
     };
   
     meta = with lib; {
  
positive.code: , libgcrypt
  , cryptoSupport ? false
  , pythonSupport ? stdenv.buildPlatform == stdenv.hostPlatform
  }:
  
  stdenv.mkDerivation rec {
  
negative.code:   outputs = [ "bin" "dev" "out" "man" "doc" ] ++ lib.optional pythonSupport "py";
  
    src = fetchurl {
      url = "mirror://gnome/sources/${pname}/${lib.versions.majorMinor version}/${pname}-${version}.tar.xz";
      sha256 = "KMR9szq02u+mIy8xzLPGUmDIJRUeyG7EYTVSR/P1aCQ=";
    };
  
    patches = [
  