fix: gmtime_r and localtime_r is inline function on MinGW

Author: tangxinfa

src/spec.c

@@ -62,24 +62,12 @@ static int zlog_spec_write_time_internal(zlog_spec_t * a_spec, zlog_thread_t * a
 	time_t now_sec = a_thread->event->time_stamp.tv_sec;
 	struct tm *time;
 	time_t *time_sec;
-	typedef struct tm *(*zlog_spec_time_fn) (const time_t*, struct tm *);
-	zlog_spec_time_fn time_stamp_convert_function;
 	if( use_utc ) {
 		time = &(a_thread->event->time_utc);
 		time_sec =  &(a_thread->event->time_utc_sec);
-#ifdef _WIN32
-		time_stamp_convert_function = gmtime_s;
-#else
-		time_stamp_convert_function = gmtime_r;
-#endif
 	} else {
 		time = &(a_thread->event->time_local);
 		time_sec =  &(a_thread->event->time_local_sec);
-#ifdef _WIN32
-		time_stamp_convert_function = localtime_s;
-#else
-		time_stamp_convert_function = localtime_r;
-#endif
 	}
 
 	/* the event meet the 1st time_spec in his life cycle */
@@ -90,7 +78,11 @@ static int zlog_spec_write_time_internal(zlog_spec_t * a_spec, zlog_thread_t * a
 
 	/* When this event's last cached time_local is not now */
 	if (*time_sec != now_sec) {
-		time_stamp_convert_function(&(now_sec), time);
+		if (use_utc) {
+			gmtime_r(&(now_sec), time);
+		} else {
+			localtime_r(&(now_sec), time);
+		}
 		*time_sec = now_sec;
 	}
 

src/zc_xplatform.h

@@ -52,7 +52,7 @@
 #if defined(__APPLE__) && !defined(MAC_OS_X_VERSION_10_6)
 #define zlog_fstat fstat64
 #define zlog_stat stat64
-#elif defined(_WIN32)
+#elif defined(_WIN32) && !defined(__MINGW32__)
 #define zlog_fstat _fstat
 #define zlog_stat _stat
 #else