$OpenBSD: patch-src_config_h,v 1.2 2012/02/28 11:57:11 dcoppa Exp $
--- src/config.h.orig	Wed Feb 22 14:23:43 2012
+++ src/config.h	Tue Feb 28 12:36:22 2012
@@ -25,7 +25,7 @@
 #endif
 
 /* Test for backtrace() */
-#if defined(__APPLE__) || defined(__linux__) || defined(__sun)
+#if defined(__APPLE__) || defined(__linux__) || defined(__sun) || defined(__OpenBSD__)
 #define HAVE_BACKTRACE 1
 #endif