anchor.diff:  
     enableParallelBuilding = true;
   
  -  NIX_CFLAGS_COMPILE = "-I${cairo}/include/cairo";
  +  NIX_CFLAGS_COMPILE = "-I${cairo}/include/cairo"
  +    + stdenv.lib.optionalString (libintlOrEmpty != null) " -lintl";
   
     nativeBuildInputs = [ perl pkgconfig gettext ];
   
  
positive.code:       proprietary software with GTK+ without any license fees or
        royalties.
      '';
  
      homepage = http://www.gtk.org/;
  
      license = "LGPLv2+";
  
      maintainers = [stdenv.lib.maintainers.raskin];
      platforms = stdenv.lib.platforms.all;
    };
  }
  
negative.code: 
    postInstall = "rm -rf $out/share/gtk-doc";
  
    meta = with stdenv.lib; {
      description = "A multi-platform toolkit for creating graphical user interfaces";
      homepage    = http://www.gtk.org/;
      license     = licenses.lgpl2Plus;
      maintainers = with maintainers; [ lovek323 raskin ];
      platforms   = platforms.all;
  
      longDescription = ''
        GTK+ is a highly usable, feature rich toolkit for creating
  