From 29149e5385f3e14f4ea3efa91f2be6be21319d52 Mon Sep 17 00:00:00 2001
From: Michael Raskin <7c6f434c@mail.ru>
Date: Wed, 27 Aug 2008 21:23:49 +0000
Subject: [PATCH] The even more incredibly verbose debugging machine...

svn path=/nixpkgs/trunk/; revision=12758
---
 pkgs/lib/default.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/lib/default.nix b/pkgs/lib/default.nix
index 2f87de0cd0c6..34d1cdda148b 100644
--- a/pkgs/lib/default.nix
+++ b/pkgs/lib/default.nix
@@ -456,7 +456,7 @@ rec {
       [({
 	#inherit (attrs) description;
         description = if attrs ? description then attrs.description else 
-          throw ("No description ${toString l}");
+          throw ("No description ${toString l} : ${whatis attrs}");
       }
       //(if attrs ? example then {inherit(attrs) example;} else {} )
       //(if attrs ? default then {inherit(attrs) default;} else {} )