From a5576114b6ab0dd7e08225a7b4a24daa3d564f5f Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Sun, 23 Dec 2012 20:00:48 +0100
Subject: [PATCH] haskell-heist: jailbreak to support latest version of
 'hashable'

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

diff --git a/pkgs/development/libraries/haskell/heist/default.nix b/pkgs/development/libraries/haskell/heist/default.nix
index 6a6d0d7ddf3b..4191536407e1 100644
--- a/pkgs/development/libraries/haskell/heist/default.nix
+++ b/pkgs/development/libraries/haskell/heist/default.nix
@@ -12,6 +12,7 @@ cabal.mkDerivation (self: {
     filepath hashable MonadCatchIOTransformers mtl random text time
     unorderedContainers vector xmlhtml
   ];
+  jailbreak = true;
   meta = {
     homepage = "http://snapframework.com/";
     description = "An Haskell template system supporting both HTML5 and XML";