From ff398eb82a620eed391e73bb9b60be096aeac5ad Mon Sep 17 00:00:00 2001
From: "Gary E. Miller" <gem@rellim.com>
Date: Mon, 15 Aug 2016 22:02:03 -0700
Subject: In POSIX 2001, getsid() needs _XOPEN_SOURCE >= 500

---
 libgpsd_core.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'libgpsd_core.c')

diff --git a/libgpsd_core.c b/libgpsd_core.c
index 31632557..90743d72 100644
--- a/libgpsd_core.c
+++ b/libgpsd_core.c
@@ -9,6 +9,10 @@
  * This file is Copyright (c) 2010 by the GPSD project
  * BSD terms apply: see the file COPYING in the distribution root for details.
  */
+
+/* getsid() needs _XOPEN_SOURCE, 500 means X/Open 1995 */
+#define _XOPEN_SOURCE 500
+
 #include <time.h>
 #include <stdio.h>
 #include <stdlib.h>
-- 
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