--- Libc/Libc-262/threads/lu_utils.c
+++ Libc/Libc-320/threads/lu_utils.c
@@ -1,3 +1,27 @@
+/*
+ * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ */
 /*
  * Port and memory management for doing lookups to the lookup server
  * Copyright (C) 1989 by NeXT, Inc.
@@ -9,7 +33,11 @@
  *
  */
 #include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <unistd.h>
 #include <mach/mach.h>
+#include <mach/error.h>
 #include <servers/bootstrap.h>
 
 mach_port_t _lu_port = MACH_PORT_NULL;