diff --git a/tmux.h b/tmux.h
index fed052b4..f7b945b2 100644
--- a/tmux.h
+++ b/tmux.h
@@ -1,4 +1,4 @@
-/* $Id: tmux.h,v 1.61 2007-10-19 11:10:35 nicm Exp $ */
+/* $Id: tmux.h,v 1.62 2007-10-19 20:36:08 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -33,6 +33,13 @@
 extern cc_t	ttydefchars[];
 extern char    *__progname;
 
+#ifndef __dead
+#define __dead __attribute__ ((__noreturn__))
+#endif
+#ifndef __packed
+#define __packed __attribute__ ((__packed__))
+#endif
+
 #define MAXNAMELEN	32
 #define MAXTITLELEN	192