--- libc/time/tzfile.c	2006-06-29 12:22:39.000000000 +0200
+++ libc/time/tzfile.c-patched	2006-06-29 12:58:41.000000000 +0200
@@ -476,6 +476,10 @@
   /* Set the timezone.  */
   __timezone = -types[0].offset;
 
+  /* since the user specified a hand-made timezone we dont claim to
+   * use tzfile further on */
+  __use_tzfile = 0;
+  
   compute_tzname_max (stdlen + dstlen);
 }