anchor.diff:  , cups
   , dbus
   , atk
  +, gtk3-x11
   , gtk2-x11
   , gdk-pixbuf
   , glib
  
positive.code:     glib
      gnome2.GConf
      gnome2.pango
      gtk2-x11
      nspr
      nss
  
negative.code:  stdenv.mkDerivation rec {
    pname = "minecraft-launcher";
  
    version = "2.1.7658";
  
    src = fetchurl {
      url = "https://launcher.mojang.com/download/linux/x86_64/minecraft-launcher_${version}.tar.gz";
      sha256 = "10sng7l0q9r98zwifjmy50nyh65ny4djmacz8158hffcsfcx93px";
    };
  
    icon = fetchurl {
  