$NetBSD: patch-ab,v 1.1 2006/12/07 06:27:30 cjs Exp $

--- configure.orig	2000-10-19 16:35:18.000000000 +0900
+++ configure	2006-12-07 15:08:35.000000000 +0900
@@ -538,7 +538,7 @@
   CPPFLAGS="${CPPFLAGS} -DNDEBUG"
 fi
 
-CPPFLAGS="${CPPFLAGS} -D_GNU_SOURCE -D_XOPEN_SOURCE"
+CPPFLAGS="${CPPFLAGS} -D_GNU_SOURCE"
 LDFLAGS="${LDFLAGS}"
 
 # Extract the first word of "gcc", so it can be a program name with args.