$NetBSD$

--- lock_ops.h.orig	2004-07-26 23:18:35.000000000 +0000
+++ lock_ops.h
@@ -66,6 +66,9 @@ WARNING: - lock_set_init may fail for la
 #ifndef _lock_ops_h
 #define _lock_ops_h
 
+#include <errno.h>
+#include <string.h>
+#include "dprint.h"
 
 #ifdef FAST_LOCK
 #include "fastlock.h"
