From a71cb7cad1283a4bfc51d5a8e76e6f9358064858 Mon Sep 17 00:00:00 2001
From: Jim Meyering <jim@meyering.net>
Date: Sun, 18 Oct 1998 01:11:35 +0000
Subject: [PATCH] Declare localtime_r if necessary.

---
 lib/strftime.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/lib/strftime.c b/lib/strftime.c
index 33dec1328c..7a41a4fd56 100644
--- a/lib/strftime.c
+++ b/lib/strftime.c
@@ -48,10 +48,9 @@
 #include <ctype.h>
 #include <sys/types.h>		/* Some systems define `time_t' here.  */
 
-/* Some systems require <unistd.h> to be included before <time.h>
-   for localtime_r to be declared properly.  */
-#if HAVE_UNISTD_H
-# include <unistd.h>
+/* Provide a declaration of localtime_r on systems that lack it.  */
+#if ! defined HAVE_DECL_LOCALTIME_R
+extern struct tm* localtime_r ();
 #endif
 
 #ifdef TIME_WITH_SYS_TIME
-- 
2.47.3