anchor.diff:      freetype
       gdk_pixbuf
       glib
  -    gtk2
  +    gtk3
       libxcb
       libX11
       libXext
  
positive.code:   fteLibPath = makeLibraryPath [ stdenv.cc.cc gmp ];
  
    # Upstream source
    version = "7.5.6";
  
    lang = "en-US";
  
  
negative.code: , freetype
  , gdk_pixbuf
  , glib
  , gtk3
  , libxcb
  , libX11
  , libXext
  