From 23b3b76c1d0b966f8555ce3172000a141e7f0aef Mon Sep 17 00:00:00 2001
From: Jon Trulson <jon@radscan.com>
Date: Fri, 12 Nov 2021 16:21:34 -0700
Subject: [PATCH] lib/csa: fix implicit-function-declaration warnings

---
 cde/lib/csa/iso8601.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/cde/lib/csa/iso8601.c b/cde/lib/csa/iso8601.c
index f46ac9fa1..911468713 100644
--- a/cde/lib/csa/iso8601.c
+++ b/cde/lib/csa/iso8601.c
@@ -28,6 +28,10 @@
  *  (c) Copyright 1993, 1994 Sun Microsystems, Inc.
  */
 
+#if defined(__linux__) || defined(CSRG_BASED)
+# define _GNU_SOURCE
+#endif
+
 #include <EUSCompat.h>
 #define XOS_USE_NO_LOCKING
 #define X_INCLUDE_TIME_H