$OpenBSD: patch-mono_utils_gc_wrapper_h,v 1.2 2011/11/03 09:55:12 ajacoutot Exp $
--- mono/utils/gc_wrapper.h.orig	Tue Aug 23 02:10:06 2011
+++ mono/utils/gc_wrapper.h	Thu Nov  3 08:54:45 2011
@@ -37,6 +37,12 @@
 #       endif
 #	endif
 
+	/*
+	 * In the case of multithreaded code, gc.h should be included
+	 * after the threads header file, and after defining GC_THREADS.
+	 */
+#	include <pthread.h>
+#	define GC_THREADS
 #	ifdef HAVE_GC_GC_H
 #		include <gc/gc.h>
 #		include <gc/gc_typed.h>