--- ginclude/stddef.h.orig	Mon Oct 28 04:35:28 1996
+++ ginclude/stddef.h	Sun Mar 24 03:26:25 2002
@@ -24,7 +24,8 @@
 
 /* On 4.3bsd-net2, make sure ansi.h is included, so we have
    one less case to deal with in the following.  */
-#if defined (__BSD_NET2__) || defined (____386BSD____) || defined (__FreeBSD__) || defined(__NetBSD__)
+#if defined (__BSD_NET2__) || defined (____386BSD____) || defined (__FreeBSD__) || defined(__NetBSD__) || defined (__OpenBSD__)
+#define __NO_GNUC_VA_LIST	/* <machine/ansi.h> defines __gnuc_va_list */
 #include <machine/ansi.h>
 #endif