time64: declare `tm_zone` as `const char*` unconditionally

We only ever assign from `struct tm` to `struct TM`, not the other way
around, so making this const regardless of what `struct tm` has should
be safe.

1 files changed, 1 insertions, 1 deletions

diff --git a/time64.c b/time64.c
index bbcef8e774..7fc50af13d 100644
--- a/time64.c
+++ b/time64.c
@@ -374,7 +374,7 @@ struct TM *Perl_gmtime64_r (const Time64_T *in_time, struct TM *p)
     p->tm_isdst  = 0;
 
 #ifdef HAS_TM_TM_ZONE
-    p->tm_zone   = (char *)"UTC";
+    p->tm_zone   = "UTC";
 #endif
 
     v_tm_sec  = (int)Perl_fmod(time, 60.0);