From b5dc8f98d2b43bcab0a04e7b4a87e706346da473 Mon Sep 17 00:00:00 2001
From: Michael Raskin <7c6f434c@mail.ru>
Date: Wed, 16 Sep 2009 13:54:11 +0000
Subject: [PATCH] Use attrByPath for feature retrieval

svn path=/nixpkgs/trunk/; revision=17191
---
 pkgs/top-level/all-packages.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 0effbea6d48..20f36cc1e33 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -5378,7 +5378,7 @@ let
       inherit fetchgit stdenv kernel perl;
     };
 
-    aufs2Utils = if kernel.features ? aufs then
+    aufs2Utils = if lib.attrByPath ["features" "aufs"] false kernel then
       builderDefsPackage ../os-specific/linux/aufs2-utils {
         inherit kernel;
       }