$OpenBSD: patch-sal_osl_unx_backtrace_h,v 1.3 2010/06/26 15:48:12 robert Exp $
--- sal/osl/unx/backtrace.h.orig.port	Wed May 26 20:28:29 2010
+++ sal/osl/unx/backtrace.h	Fri Jun 25 23:56:14 2010
@@ -26,7 +26,7 @@
  ************************************************************************/
 
 
-#if defined (SOLARIS) || (FREEBSD) 
+#if defined (SOLARIS) || (FREEBSD) || (OPENBSD)
 
 #ifdef __cplusplus
 extern "C" {
@@ -39,7 +39,7 @@ int backtrace( void **buffer, int max_frames );
 void backtrace_symbols_fd( void **buffer, int size, int fd );
 
 /* no frame.h on FreeBSD */
-#if defined FREEBSD
+#if defined FREEBSD || defined OPENBSD
 struct frame {
 	long	arg0[8];
 	long	arg1[6];
