$NetBSD: patch-ci,v 1.3 2006/04/09 06:34:33 jlam Exp $

--- pp_sys.c.orig	2006-01-13 13:15:15.000000000 -0500
+++ pp_sys.c
@@ -4516,12 +4516,15 @@ PP(pp_gmtime)
 	when = (Time_t)SvIVx(POPs);
 #endif
 
-    if (PL_op->op_type == OP_LOCALTIME)
+    if (PL_op->op_type == OP_LOCALTIME) {
 #ifdef LOCALTIME_EDGECASE_BROKEN
 	tmbuf = S_my_localtime(aTHX_ &when);
 #else
+	/* Explicitly invoke tzset() as localtime_r may not. */
+	tzset();
 	tmbuf = localtime(&when);
 #endif
+    }
     else
 	tmbuf = gmtime(&when);
 
