From c92d7037dbd5f8cb9bb34ec3734a10f135ff38d6 Mon Sep 17 00:00:00 2001
From: "Enrico Weigelt, metux IT consult" <info@metux.net>
Date: Wed, 11 Sep 2024 11:58:27 +0200
Subject: [PATCH] (!1685) os: log: use localtime_r() on mingw builds

MingW also provides localtime_r(), but needs _POSIX_THREAD_SAFE_FUNCTIONS
symbol before including anything, in order for the prototype being defined.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
---
 os/log.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/os/log.c b/os/log.c
index 3c6dabb76..e3b79cda1 100644
--- a/os/log.c
+++ b/os/log.c
@@ -75,6 +75,8 @@ OR PERFORMANCE OF THIS SOFTWARE.
  * authorization from the copyright holder(s) and author(s).
  */
 
+#define _POSIX_THREAD_SAFE_FUNCTIONS // for localtime_r on mingw32
+
 #ifdef HAVE_DIX_CONFIG_H
 #include <dix-config.h>
 #endif
@@ -617,11 +619,7 @@ LogSWrite(int verb, const char *buf, size_t len, Bool end_line)
                 struct tm tm;
                 char fmt_tm[32];
 
-#ifdef WIN32
-                localtime_s(&tm, &t);
-#else
                 localtime_r(&t, &tm);
-#endif
                 strftime(fmt_tm, sizeof(fmt_tm) - 1, "%Y-%m-%d %H:%M:%S", &tm);
 
                 fprintf(logFile, "[%s] ", fmt_tm);