--- configure.orig	2012-08-08 11:10:58.575960219 +0400
+++ configure	2012-08-08 11:11:38.950486311 +0400
@@ -157,6 +157,9 @@
     } elsif ($opt eq '--without-lua_redis_parser') {
         $resty_opts{no_lua_redis_parser} = 1;
 
+    } elsif ($opt eq '--without-lua_resty_dns') {
+        $resty_opts{no_lua_resty_dns} = 1;
+
     } elsif ($opt eq '--without-lua_resty_memcached') {
         $resty_opts{no_lua_resty_memcached} = 1;