$OpenBSD: patch-sim_timer_c,v 1.2 2008/11/04 22:13:30 sthen Exp $
--- sim_timer.c.orig	Tue May 27 15:36:26 2008
+++ sim_timer.c	Tue Nov  4 22:06:49 2008
@@ -295,7 +295,7 @@ return;
 
 uint32 sim_os_ms_sleep_init (void)
 {
-#if defined (_POSIX_SOURCE)                              /* POSIX-compliant */
+#if defined (_POSIX_SOURCE) || defined(__OpenBSD__)      /* POSIX-compliant */
 
 struct timespec treq;
 uint32 msec;
