remove r->root_length
diff --git a/src/http/ngx_http_core_module.h b/src/http/ngx_http_core_module.h
index f8ea328..c468fa3 100644
--- a/src/http/ngx_http_core_module.h
+++ b/src/http/ngx_http_core_module.h
@@ -301,7 +301,7 @@
ngx_int_t ngx_http_set_content_type(ngx_http_request_t *r);
ngx_int_t ngx_http_set_exten(ngx_http_request_t *r);
u_char *ngx_http_map_uri_to_path(ngx_http_request_t *r, ngx_str_t *name,
- size_t reserved);
+ size_t *root_length, size_t reserved);
ngx_int_t ngx_http_auth_basic_user(ngx_http_request_t *r);
ngx_int_t ngx_http_subrequest(ngx_http_request_t *r,
