bpo-34672: Don't pass NULL to gmtime_r. (GH-9312)

diff --git a/Modules/timemodule.c b/Modules/timemodule.c
index 8118b31c91730c78202f6317f13a3d9ae5c372a8..1a4cff23d65efd180f423f45935f3cf3e565fcfe 100644 (file)
--- a/Modules/timemodule.c
+++ b/Modules/timemodule.c
@@ -1764,7 +1764,8 @@ PyInit_time(void)
 
 #if defined(__linux__) && !defined(__GLIBC__)
     struct tm tm;
-    if (gmtime_r(0, &tm) != NULL)
+    const time_t zero = 0;
+    if (gmtime_r(&zero, &tm) != NULL)
         utc_string = tm.tm_zone;
 #endif