$OpenBSD: patch-include_private_openbsd_stop_world_h,v 1.1 2008/04/01 17:41:13 kurt Exp $
--- include/private/openbsd_stop_world.h.orig	Wed Feb  6 19:24:16 2008
+++ include/private/openbsd_stop_world.h	Wed Feb  6 19:26:02 2008
@@ -0,0 +1,12 @@
+#ifndef GC_OPENBSD_STOP_WORLD_H
+#define GC_OPENBSD_STOP_WORLD_H
+
+#if !defined(GC_OPENBSD_THREADS)
+#error openbsd_stop_world.h included without GC_OPENBSD_THREADS defined
+#endif
+
+struct thread_stop_info {
+    ptr_t stack_ptr;  		/* Valid only when stopped.      	*/
+};
+    
+#endif