$NetBSD: patch-bc,v 1.1 2005/12/06 18:50:36 rillig Exp $

--- lib9/u.h.orig	Mon Nov 14 11:22:41 2005
+++ lib9/u.h	Tue Dec  6 19:43:23 2005
@@ -16,7 +16,7 @@ extern "C" {
 #define _BSD_SOURCE 1
 #define _NETBSD_SOURCE 1	/* NetBSD */
 #define _SVID_SOURCE 1
-#if !defined(__APPLE__) && !defined(__OpenBSD__)
+#if !defined(__APPLE__) && !defined(__OpenBSD__) && !defined(__NetBSD__)
 #	define _XOPEN_SOURCE 1000
 #	define _XOPEN_SOURCE_EXTENDED 1
 #endif