--- tzcode2001c/strftime.c	Tue Jun  5 13:49:50 2001
+++ tzcode2001c-Sun5/strftime.c	Thu Jun 14 14:27:35 2001
@@ -604,6 +604,7 @@
 	static const char	lc_time[] = "LC_TIME";
 	static char *		locale_buf;
 	static char		locale_buf_C[] = "C";
+	static int		cache_good;
 
 	int			fd;
 	int			oldsun;	/* "...ain't got nothin' to do..." */
@@ -629,7 +630,7 @@
 	** If the locale name is the same as our cache, use the cache.
 	*/
 	lbuf = locale_buf;
-	if (lbuf != NULL && strcmp(name, lbuf) == 0) {
+	if (cache_good && lbuf != NULL && strcmp(name, lbuf) == 0) {
 		p = lbuf;
 		for (ap = (const char **) &localebuf;
 			ap < (const char **) (&localebuf + 1);
@@ -705,6 +706,7 @@
 	** Record the successful parse in the cache.
 	*/
 	locale_buf = lbuf;
+	cache_good = 1;
 
 	return &localebuf;
 
@@ -715,6 +717,7 @@
 no_locale:
 	localebuf = C_time_locale;
 	locale_buf = locale_buf_C;
+	cache_good = 0;
 	return &localebuf;
 }
 #endif /* defined LOCALE_HOME */