anchor.diff:  
       homepage = http://www.gtk.org/;
   
  -    license = stdenv.lib.licenses.lgpl2Plus;
  +    license = licenses.lgpl2Plus;
   
  -    maintainers = with stdenv.lib.maintainers; [ urkud raskin vcunat lethalman ];
  -    platforms = stdenv.lib.platforms.all;
  +    maintainers = with maintainers; [ urkud raskin vcunat lethalman ];
  +    platforms = platforms.all;
     };
   }
  
positive.code:     ''; # workaround for bug of nix-mode for Emacs */ '';
    };
  
    meta = {
      description = "A multi-platform toolkit for creating graphical user interfaces";
  
      longDescription = ''
  
negative.code:   enableParallelBuilding = true;
  
    postInstall = ''
      substituteInPlace "$out/lib/gtk-3.0/3.0.0/printbackends/libprintbackend-cups.la" \
        --replace '-L${gmp.dev}/lib' '-L${gmp.out}/lib'
    '';
  