anchor.diff:      license = licenses.mit;
       platforms = platforms.linux;
       maintainers = with maintainers; [ volth ] ++ teams.xfce.members;
  +    # Does not build with vala 0.48 or later
  +    # libxfce4panel-2.0.vapi:92.3-92.41: error: overriding method `Xfce.PanelPlugin.remote_event' is incompatible
  +    # with base method `bool Xfce.PanelPluginProvider.remote_event (string, GLib.Value, uint)': too few parameters.
  +    #               public virtual signal bool remote_event (string name, GLib.Value value);
  +    #               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  +    # Upstream has no activity since 20 May 2020
  +    broken = true;
     };
   }
  
positive.code: { lib, stdenv, pkg-config, fetchFromGitHub, python3, vala_0_40
  , gtk3, libwnck, libxfce4util, xfce4-panel, wafHook, xfce }:
  
  stdenv.mkDerivation rec {
  
negative.code:     sha256 = "sha256-aKrJzf9rwCyXAJsRIXdBzmJBASuXD5I5kZrp+atx4FA=";
    };
  
    nativeBuildInputs = [ pkg-config vala wafHook python3 ];
    buildInputs = [ gtk3 libwnck libxfce4util xfce4-panel ];
  
    postPatch = ''
  