diff -urN thttpd-2.21-16/libhttpd.c thttpd-2.21-17/libhttpd.c
--- thttpd-2.21-16/libhttpd.c	Mon Jan 21 18:33:24 2002
+++ thttpd-2.21-17/libhttpd.c	Mon Jan 21 19:01:40 2002
@@ -1897,7 +1897,9 @@
     hc->bpos=0;
     hc->bpos_u=0;
     hc->fsize=0;
+#ifdef ERR404PERUSER
     hc->err404[0]='\0';
+#endif
 #endif
     return GC_OK;
     }