From 2bbe3130903f421f1c0a2966ccbd4ddc47222019 Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Thu, 20 Feb 2014 11:48:59 +0100
Subject: [PATCH] haskell-Chart: jailbreak to fix build with lens 4.x

Fixes <https://github.com/timbod7/haskell-chart/issues/21>.
---
 pkgs/development/libraries/haskell/Chart/default.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pkgs/development/libraries/haskell/Chart/default.nix b/pkgs/development/libraries/haskell/Chart/default.nix
index 3b08c2d0e2ca..5f7e8c2cb4bd 100644
--- a/pkgs/development/libraries/haskell/Chart/default.nix
+++ b/pkgs/development/libraries/haskell/Chart/default.nix
@@ -7,6 +7,7 @@ cabal.mkDerivation (self: {
   buildDepends = [
     colour dataDefaultClass lens mtl operational time
   ];
+  jailbreak = true;
   meta = {
     homepage = "https://github.com/timbod7/haskell-chart/wiki";
     description = "A library for generating 2D Charts and Plots";