$OpenBSD$
--- neo/idlib/sys/sys_includes.h.orig	Mon Jul 21 18:04:12 2014
+++ neo/idlib/sys/sys_includes.h	Mon Jul 21 20:01:32 2014
@@ -109,7 +109,7 @@ If you have questions concerning this license or the a
 
 #include <windows.h>						// for gl.h
 
-#elif defined(__linux__) || defined(__FreeBSD__)
+#elif defined(__unix__)
 
 #include <signal.h>
 #include <pthread.h>