$OpenBSD: patch-configure_ac,v 1.3 2014/05/12 15:22:40 jasper Exp $

From 315c60744598616ae3cb585a3523ae74f118d7b6 Mon Sep 17 00:00:00 2001
From: Jasper Lievisse Adriaanse <jasper@openbsd.org>
Date: Thu, 17 Apr 2014 15:46:16 +0200
Subject: [PATCH] 32558: _XOPEN_SOURCE_EXTENDED now OK on OpenBSD

--- configure.ac.orig	Wed Nov 27 20:00:20 2013
+++ configure.ac	Mon Apr 14 18:10:09 2014
@@ -756,7 +756,7 @@ AH_TEMPLATE([ZSH_NO_XOPEN],
 AC_CACHE_CHECK(if _XOPEN_SOURCE_EXTENDED should not be defined,
 zsh_cv_no_xopen,
 [[case "$host_os" in
-  *openbsd*|*freebsd5*|*freebsd6.[012]*|*aix*)
+  *freebsd5*|*freebsd6.[012]*|*aix*)
   zsh_cv_no_xopen=yes
   ;;
   *)
