+#include <simgear/timing/sg_time.hxx>
+#include <simgear/ephemeris/ephemeris.hxx>
+#include <simgear/magvar/magvar.hxx>
+#include <simgear/scene/material/matlib.hxx>
+#include <simgear/structure/subsystem_mgr.hxx>
+#include <simgear/structure/event_mgr.hxx>
+
+#include <Aircraft/controls.hxx>
+#include <Airports/runways.hxx>
+#include <ATCDCL/AIMgr.hxx>
+#include <ATCDCL/ATCmgr.hxx>
+#include <Autopilot/route_mgr.hxx>
+#include <Cockpit/panel.hxx>
+#include <GUI/new_gui.hxx>
+#include <Model/acmodel.hxx>
+#include <Model/modelmgr.hxx>
+#include <MultiPlayer/multiplaymgr.hxx>
+#include <Navaids/awynet.hxx>
+#include <Scenery/scenery.hxx>
+#include <Scenery/tilemgr.hxx>
+#include <Navaids/navlist.hxx>
+#include <Navaids/fixlist.hxx>