anchor.diff: -{ stdenv, fetchurl, fetchFromGitHub, autoreconfHook, gconf, intltool, makeWrapper, pkgconfig
  +{ stdenv, fetchurl, runCommand, fetchFromGitHub, autoreconfHook, gconf, intltool, makeWrapper, pkgconfig
   , vala, wrapGAppsHook, dbus, dconf ? null, glib, gdk_pixbuf, gobject-introspection, gtk2
   , gtk3, gtk-doc, isocodes, python3, json-glib, libnotify ? null, enablePythonLibrary ? true
   , enableUI ? true, withWayland ? false, libxkbcommon ? null, wayland ? null
  
positive.code:       makeWrapper ${glib.dev}/bin/glib-mkenums $out/bin/glib-mkenums --unset PYTHONPATH
      '';
    };
  in
  
  stdenv.mkDerivation rec {
  
negative.code: 
    nativeBuildInputs = [
      autoreconfHook
      gsettings-schema-convert
      gtk-doc
      intltool
      makeWrapper
  