anchor.diff:  
     buildInputs = [
       lightdm dbus_glib gtk3 webkitgtk meson ninja
  -    pkgconfig
  -    gobjectIntrospection
  -    gettext
  -    glib
  +    pkgconfig xorg.libX11 glib
  +    gettext makeWrapper
     ];
   
  -  rpath = lib.concatMapStringsSep ":" (inp: inp + "/lib") buildInputs;
  -
  -  fixupOutput = ''
  -    patchelf --set-rpath "$rpath":$out/lib $prefix/bin/lightdm-webkit2-greeter
  -  '';
  +  libPath = stdenv.lib.makeLibraryPath buildInputs;
   
     patches = [ ./lang.patch ];
   
  
positive.code: 
    installPhase = ''
      ninja install
    '';
  
  }
  
negative.code: { stdenv, fetchgit, lightdm, dbus_glib, gtk3, webkitgtk, ninja, pkgconfig, gettext, meson, glib, lib, makeWrapper, xorg }:
  
  let inherit (xorg) libX11;
  
  in stdenv.mkDerivation rec {
  
    name = "lightdm-webkit2-greeter-2.2.3";
  
  