From e91cb7a79da0193e70c3ee800adf41939b118dfc Mon Sep 17 00:00:00 2001
From: "Roger A. Light" <roger@atchoo.org>
Date: Wed, 15 Aug 2018 17:27:02 +0100
Subject: [PATCH] Fixes for CentOS 7.

---
 config.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/config.h b/config.h
index e3ad964b..4e7e6b60 100644
--- a/config.h
+++ b/config.h
@@ -34,6 +34,7 @@
 #  define __BSD_VISIBLE 1
 #  define HAVE_NETINET_IN_H
 #else
+#  define _XOPEN_SOURCE 700
 #  define _DEFAULT_SOURCE 1
 #  define _POSIX_C_SOURCE 200809L
 #endif