anchor.diff:  
     }) // {inherit libX11 xbitmaps libXcursor libXmu xproto ;};
   
  -  xts = (mkDerivation "xts" {
  -    name = "xts-0.99.1";
  -    src = fetchurl {
  -      url = mirror://xorg/individual/test/xts-0.99.1.tar.bz2;
  -      sha256 = "08sanl2nhbbscid767i5zwk0nv2q3ds89w96ils8qfigd57kacc5";
  -    };
  -    nativeBuildInputs = [ utilmacros ];
  -    buildInputs = [ libX11 libXau libXaw libXext libXi libXmu libXt xtrans libXtst ];
  -
  -  }) // {inherit libX11 libXau libXaw libXext libXi libXmu libXt xtrans libXtst ;};
  +  # xts = (mkDerivation "xts" {
  +  #   name = "xts-0.99.1";
  +  #   src = fetchurl {
  +  #     url = mirror://xorg/individual/test/xts-0.99.1.tar.bz2;
  +  #     sha256 = "08sanl2nhbbscid767i5zwk0nv2q3ds89w96ils8qfigd57kacc5";
  +  #   };
  +  #   nativeBuildInputs = [ utilmacros ];
  +  #   buildInputs = [ libX11 libXau libXaw libXext libXi libXmu libXt xtrans libXtst ];
  +  #
  +  # }) // {inherit libX11 libXau libXaw libXext libXi libXmu libXt xtrans libXtst ;};
   
   }; in xorg
  
positive.code: 
    }) // {inherit ;};
  
    fontadobeutopia75dpi = (mkDerivation "fontadobeutopia75dpi" {
      name = "font-adobe-utopia-75dpi-1.0.4";
      src = fetchurl {
        url = mirror://xorg/individual/font/font-adobe-utopia-75dpi-1.0.4.tar.bz2;
        sha256 = "152wigpph5wvl4k9m3l4mchxxisgsnzlx033mn5iqrpkc6f72cl7";
      };
      nativeBuildInputs = [ bdftopcf fontutil mkfontdir mkfontscale utilmacros ];
      buildInputs = [ ];
  
negative.code: 
    }) // {inherit libX11 libXext xextproto xproto libXt ;};
  
    # libXp = (mkDerivation "libXp" {
    #   name = "libXp-1.0.3";
    #   src = fetchurl {
    #     url = mirror://xorg/individual/lib/libXp-1.0.3.tar.bz2;
    #     sha256 = "0mwc2jwmq03b1m9ihax5c6gw2ln8rc70zz4fsj3kb7440nchqdkz";
    #   };
    #   nativeBuildInputs = [ utilmacros ];
    #   buildInputs = [ printproto libX11 libXau libXext xextproto ];
    #
    # }) // {inherit printproto libX11 libXau libXext xextproto ;};
  
    libXpm = (mkDerivation "libXpm" {
      name = "libXpm-3.5.12";
  