From 46fec9e4c984da52fa92acc65583cfd45b8dd2f5 Mon Sep 17 00:00:00 2001
From: Michael Raskin <7c6f434c@mail.ru>
Date: Thu, 8 Jan 2009 23:02:44 +0000
Subject: [PATCH] Add a (failure-prone) last-chance string merger

svn path=/nixpkgs/trunk/; revision=13726
---
 pkgs/lib/default.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pkgs/lib/default.nix b/pkgs/lib/default.nix
index 3f7ba67ecf1e..ca8820034338 100644
--- a/pkgs/lib/default.nix
+++ b/pkgs/lib/default.nix
@@ -484,6 +484,7 @@ rec {
     else if all __isList list then concatLists list
     else if all __isAttrs list then mergeAttrs list
     else if all (x: true == x || false == x) list then fold logicalOR false list
+    else if all (x: x == toString x) list then concatStrings x
     else abort "${name}: Cannot merge values.";
 
   mergeTypedOption = typeName: predicate: merge: name: list: