nginx-0.3.34-RELEASE import

    *) Feature: the "add_header" directive supports the variables.
diff --git a/src/http/ngx_http_core_module.c b/src/http/ngx_http_core_module.c
index 8e9d0b3..6e55c40 100644
--- a/src/http/ngx_http_core_module.c
+++ b/src/http/ngx_http_core_module.c
@@ -2012,6 +2012,7 @@
 
     if (conf->root.data == NULL) {
 
+        conf->alias = prev->alias;
         conf->root = prev->root;
         conf->root_lengths = prev->root_lengths;
         conf->root_values = prev->root_values;