$OpenBSD: patch-intern_guardedalloc_intern_mallocn_intern_h,v 1.1 2014/03/24 21:16:15 pascal Exp $
--- intern/guardedalloc/intern/mallocn_intern.h.orig	Wed Mar 19 23:05:25 2014
+++ intern/guardedalloc/intern/mallocn_intern.h	Fri Mar 21 08:55:15 2014
@@ -56,6 +56,8 @@
 #  define HAVE_MALLOC_STATS
 #elif defined(__FreeBSD__)
 #  include <malloc_np.h>
+#elif defined(__OpenBSD__)
+/* nothing here */
 #elif defined(__APPLE__)
 #  include <malloc/malloc.h>
 #  define malloc_usable_size malloc_size
