--- screen-4.0.3.orig/sched.h	2002-01-08 16:42:43.000000000 +0100
+++ screen-4.0.3/sched.h	2008-10-08 13:33:43.000000000 +0200
@@ -22,6 +22,11 @@
  * $Id: sched.h,v 1.1.1.1 1993/06/16 23:51:13 jnweiger Exp $ FAU
  */
 
+#ifndef __SCHED_H
+#define __SCHED_H
+
+#include <sys/time.h>
+
 struct event
 {
   struct event *next;
@@ -41,3 +46,5 @@ struct event
 #define EV_READ		1
 #define EV_WRITE	2
 #define EV_ALWAYS	3
+
+#endif