$OpenBSD: patch-intern_guardedalloc_intern_mallocn_c,v 1.1 2014/07/03 14:41:48 pascal Exp $
--- intern/guardedalloc/intern/mallocn.c.orig	Sun Jun 29 15:22:31 2014
+++ intern/guardedalloc/intern/mallocn.c	Sun Jun 29 15:22:56 2014
@@ -73,7 +73,7 @@ void *aligned_malloc(size_t size, size_t alignment)
 	 */
 	assert(alignment == 16);
 	return malloc(size);
-#elif defined(__FreeBSD__) || defined(__NetBSD__)
+#elif defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
 	void *result;
 
 	if (posix_memalign(&result, alignment, size)) {
