From d977c9f9fc9928c260184c5c6959db26f9ab284f Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Tue, 14 Oct 2014 15:36:37 +0200
Subject: [PATCH] haskell-machines-directory: jailbreak to fix build with
 recent 'machines'

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

diff --git a/pkgs/development/libraries/haskell/machines-directory/default.nix b/pkgs/development/libraries/haskell/machines-directory/default.nix
index 3a619b72b79..dadae68668a 100644
--- a/pkgs/development/libraries/haskell/machines-directory/default.nix
+++ b/pkgs/development/libraries/haskell/machines-directory/default.nix
@@ -7,6 +7,7 @@ cabal.mkDerivation (self: {
   version = "0.0.0.1";
   sha256 = "1npgh7f5czx6r3s05y48rs6xkrgpv3if38apwnbvi4ignmsfsvyx";
   buildDepends = [ filepath machines machinesIo transformers ];
+  jailbreak = true;
   meta = {
     homepage = "http://github.com/aloiscochard/machines-io";
     description = "Directory (system) utilities for the machines library";