$OpenBSD: patch-lib_os_mon_c_src_memsup_c,v 1.1 2014/07/08 10:40:26 sthen Exp $
--- lib/os_mon/c_src/memsup.c.orig	Tue Jul  8 11:38:54 2014
+++ lib/os_mon/c_src/memsup.c	Tue Jul  8 11:39:30 2014
@@ -116,7 +116,7 @@
 #if !defined (__OpenBSD__) && !defined (__NetBSD__) 
 #include <vm/vm_param.h>
 #endif
-#if defined (__FreeBSD__) || defined(__DragonFly__)
+#if defined (__FreeBSD__) || defined(__DragonFly__) || defined (__OpenBSD__)
 #include <sys/vmmeter.h>
 #endif
 #endif
