$OpenBSD: patch-sal_osl_unx_backtrace_c,v 1.4 2010/06/26 15:48:12 robert Exp $
--- sal/osl/unx/backtrace.c.orig.port	Wed May 26 20:28:29 2010
+++ sal/osl/unx/backtrace.c	Fri Jun 25 23:56:14 2010
@@ -139,7 +139,7 @@ void backtrace_symbols_fd( void **buffer, int size, in
 #endif /* defined SOLARIS */
 
 
-#if defined FREEBSD || defined NETBSD
+#if defined FREEBSD || defined NETBSD || defined OPENBSD
 #include <dlfcn.h>
 #include <pthread.h>
 #include <setjmp.h>
