// Modified by Cdr. VS Renganthan <vsranga@ada.ernet.in>, 12 Oct 2K
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
#include <simgear/io/iochannel.hxx>
+#include <simgear/io/sg_socket.hxx>
#include <simgear/constants.h>
#include <Controls/controls.hxx>