1 files changed, 7 insertions, 1 deletions
diff --git a/mainwin.h b/mainwin.h
index 54063b9..98df23e 100644
--- a/mainwin.h
+++ b/mainwin.h
@@ -23,5 +23,11 @@ Except as contained in this notice, the name of The Open Group shall not be
 used in advertising or otherwise to promote the sale, use or other dealings
 in this Software without prior written authorization from The Open Group.
 ******************************************************************************/
+/* $XFree86: xc/programs/xsm/mainwin.h,v 1.6 2001/12/14 20:02:26 dawes Exp $ */
 
-extern void create_main_window ();
+#ifndef _MAINWIN_H_
+#define _MAINWIN_H_
+
+extern void create_main_window(void);
+
+#endif