anchor.diff:        url = "mirror://cpan/authors/id/E/ET/ETJ/ExtUtils-CppGuess-0.21.tar.gz";
         sha256 = "0ls1y9bb2nff9djli91s86541r7ajcjp22gqhcdmj7hs69w92qpz";
       };
  +    doCheck = !stdenv.isDarwin;
       nativeBuildInputs = [ pkgs.ld-is-cc-hook ];
       propagatedBuildInputs = [ CaptureTiny ];
       buildInputs = [ ModuleBuild ];
  
positive.code:       license = lib.licenses.lgpl2Plus;
      };
      propagatedBuildInputs = [ Gtk2 ];
    };
  
    Gnome2VFS = buildPerlPackage {
  
negative.code:     meta = {
        description = "Cryptographically secure v4 UUIDs for Linux x64";
        license = with lib.licenses; [ artistic1 gpl1Plus ];
        platforms = lib.platforms.linux; # configure phase fails with "OS unsupported"
      };
    };
  
  