anchor.diff:  
     }) // {inherit libICE xproto ;};
   
  -  ico = (mkDerivation "ico" {
  -    name = "ico-1.0.4";
  -    src = fetchurl {
  -      url = mirror://xorg/individual/app/ico-1.0.4.tar.bz2;
  -      sha256 = "141mqphg9sfz7x1gfiqpkjkqkiqq1b5zxw67l0ls2p7rk1q7cci9";
  -    };
  -    nativeBuildInputs = [ utilmacros ];
  -    buildInputs = [ libX11 xproto ];
  -
  -  }) // {inherit libX11 xproto ;};
  +  # ico = (mkDerivation "ico" {
  +  #   name = "ico-1.0.4";
  +  #   src = fetchurl {
  +  #     url = mirror://xorg/individual/app/ico-1.0.4.tar.bz2;
  +  #     sha256 = "141mqphg9sfz7x1gfiqpkjkqkiqq1b5zxw67l0ls2p7rk1q7cci9";
  +  #   };
  +  #   nativeBuildInputs = [ utilmacros ];
  +  #   buildInputs = [ libX11 xproto ];
  +  #
  +  # }) // {inherit libX11 xproto ;};
   
     imake = (mkDerivation "imake" {
       name = "imake-1.0.7";
  
positive.code: 
    }) // {inherit ;};
  
    fontadobeutopia100dpi = (mkDerivation "fontadobeutopia100dpi" {
      name = "font-adobe-utopia-100dpi-1.0.4";
      src = fetchurl {
        url = mirror://xorg/individual/font/font-adobe-utopia-100dpi-1.0.4.tar.bz2;
        sha256 = "19dd9znam1ah72jmdh7i6ny2ss2r6m21z9v0l43xvikw48zmwvyi";
      };
      nativeBuildInputs = [ bdftopcf fontutil mkfontdir mkfontscale utilmacros ];
      buildInputs = [ ];
  
negative.code: 
    }) // {inherit ;};
  
    # xpr = (mkDerivation "xpr" {
    #   name = "xpr-1.0.4";
    #   src = fetchurl {
    #     url = mirror://xorg/individual/app/xpr-1.0.4.tar.bz2;
    #     sha256 = "1dbcv26w2yand2qy7b3h5rbvw1mdmdd57jw88v53sgdr3vrqvngy";
    #   };
    #   nativeBuildInputs = [ utilmacros ];
    #   buildInputs = [ libX11 libXmu xproto ];
    #
    # }) // {inherit libX11 libXmu xproto ;};
  
    xprop = (mkDerivation "xprop" {
      name = "xprop-1.2.2";
  