From 6a46d71832d4e4d300e5f339cdbf2310ded0b434 Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Thu, 15 May 2014 19:28:08 +0200
Subject: [PATCH] haskell-keys: jailbreak to fix build with transformers 0.4.x

---
 pkgs/development/libraries/haskell/keys/default.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pkgs/development/libraries/haskell/keys/default.nix b/pkgs/development/libraries/haskell/keys/default.nix
index b657f3dd6b94..570c88b1fbd6 100644
--- a/pkgs/development/libraries/haskell/keys/default.nix
+++ b/pkgs/development/libraries/haskell/keys/default.nix
@@ -7,6 +7,7 @@ cabal.mkDerivation (self: {
   buildDepends = [
     comonad free semigroupoids semigroups transformers
   ];
+  jailbreak = true;
   meta = {
     homepage = "http://github.com/ekmett/keys/";
     description = "Keyed functors and containers";