$OpenBSD$
--- src/CEGUISystem.cpp.orig	Sun Jan 25 18:05:07 2009
+++ src/CEGUISystem.cpp	Sun Jan 25 18:06:05 2009
@@ -100,7 +100,7 @@ double SimpleTimer::currentTime()
     return timeGetTime() / 1000.0;
 }
 
-#elif defined(__linux__) || defined(__APPLE__)
+#elif defined(__linux__) || defined(__APPLE__) || defined(__OpenBSD__)
 #include <sys/time.h>
 double SimpleTimer::currentTime()
 {