strchr() is false defined here
--- w-tzdata-2010o-1.orig/date.c	2010-10-12 18:36:51.000000000 +0200
+++ w-tzdata-2010o-1/date.c	2011-02-28 00:57:57.274000374 +0100
@@ -69,7 +69,6 @@ extern char *		getlogin();
 extern time_t		mktime();
 extern char *		optarg;
 extern int		optind;
-extern char *		strchr();
 extern time_t		time();
 extern char *		tzname[2];