$NetBSD: patch-configure,v 1.1 2017/05/25 11:49:05 jperkin Exp $

Handle _XOPEN_SOURCE correctly.

--- configure.orig	2016-07-14 08:11:48.000000000 +0000
+++ configure
@@ -13486,10 +13486,8 @@ case "${host}" in
         ;;
     *-solaris*)
 
-$as_echo "#define _XOPEN_SOURCE 500" >>confdefs.h
 
 
-$as_echo "#define _XOPEN_SOURCE_EXTENDED 1" >>confdefs.h
 
 
 $as_echo "#define __EXTENSIONS__ 1" >>confdefs.h