anchor.diff:        xorg.libXScrnSaver
     ];
   
  +  nativeBuildInputs = [ wrapGAppsHook ];
  +
  +  dontWrapGApps = true;
   
     buildInputs = [ dpkg makeWrapper ];
   
  
positive.code: { stdenv, fetchurl, dpkg, lib, glib, dbus, makeWrapper, gnome2, gtk3, atk, cairo
  , freetype, fontconfig, nspr, nss, xorg, alsaLib, cups, expat, udev }:
  
  stdenv.mkDerivation rec {
    name = "typora-${version}";
  
negative.code:       gnome2.gtk
        gnome2.gdk_pixbuf
        gnome2.pango
        gnome3.defaultIconTheme
        expat
        gtk3
        atk
  