anchor.diff:    };
   
     YAML = buildPerlPackage rec {
  -    name = "YAML-0.68";
  +    name = "YAML-0.80";
       src = fetchurl {
         url = "mirror://cpan/authors/id/I/IN/INGY/${name}.tar.gz";
  -      sha256 = "0yg0pgsjkfczsblx03rxlw4ib92k0gwdyb1a258xb9wdg0w61h34";
  +      sha256 = "81ada73c7eda69dad3cc679b2facba50f2634edcc16c59a7b66bffb9f2fa0e90";
       };
     };
   
  
positive.code:   };
  
    Encode = buildPerlPackage {
      name = "Encode-2.39";
      src = fetchurl {
        url = mirror://cpan/authors/id/D/DA/DANKOGAI/Encode-2.39.tar.gz;
        sha256 = "0d9gzgxl9z5x2zq34m6gbx672b599h0fay4q0pfgv3va8mrm1wdz";
      };
    };
  
  
negative.code:   };
  
    PerlMagick = buildPerlPackage {
      name = "PerlMagick-6.74";
      src = fetchurl {
        url = mirror://cpan/authors/id/J/JC/JCRISTY/PerlMagick-6.74.tar.gz;
        sha256 = "6f2fbd3398610f2f02d5670eb5e0f5cb58079fba0e6b9d26519f469c104b969a";
      };
      buildInputs = [pkgs.imagemagick];
      preConfigure =
  