anchor.diff: -{ stdenv, fetchurl, pkgconfig, python, libxml2Python, libxslt, which, libX11, gnome3, gtk3, glib
  -, intltool, gnome_doc_utils, libxkbfile, xkeyboard_config, isocodes, itstool, wayland
  +{ stdenv, fetchurl, pkgconfig, libxslt, which, libX11, gnome3, gtk3, glib
  +, intltool, gnome_doc_utils, xkeyboard_config, isocodes, itstool, wayland
   , libseccomp, bubblewrap, gobjectIntrospection }:
   
   stdenv.mkDerivation rec {
  
positive.code:   '';
  
    meta = with stdenv.lib; {
      platforms = platforms.linux;
      maintainers = gnome3.maintainers;
    };
  
negative.code:   nativeBuildInputs = [
      pkgconfig which itstool intltool libxslt gnome_doc_utils gobjectIntrospection
    ];
    buildInputs = [
      libX11 bubblewrap xkeyboard_config isocodes wayland
      gtk3 glib libseccomp
    ];
  
    propagatedBuildInputs = [ gnome3.gsettings_desktop_schemas ];
  
  