anchor.diff:          urls;
         failEarly = true;
         pgpsigUrls = map (n: "${n}.sig") urls;
  -      pgpKeyFingerprint = "3737 FD0D 0E63 B301 7244  0D2D DBA3 A7AB 08D7 6223";
  +      pgpKeyFingerprint = "45D0 8394 6E30 3528 2B3C  CA9A F434 1042 35DA 97EB";
       };
     };
   
  
positive.code:     url = "https://github.com/apple/cups/releases/download/v${version}/"
        + "cups-${version}-source.tar.gz";
      hashOutput = false;
      sha256 = "40385778c2b3bdf55030d1c999734e22774c79e3425d91339ce677825620169b";
    };
  
    buildInputs = [
  
negative.code:     boolEn
      boolWt;
  
    version = "2.2.7";
  in
  stdenv.mkDerivation rec {
    name = "cups-${version}";
  