From ad09a97845e869a8678446cc687359687cc49e4b Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Tue, 3 Dec 2013 22:52:05 +0100
Subject: [PATCH] haskell-data-pprint: jailbreak to support GHC 7.7 or later

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

diff --git a/pkgs/development/libraries/haskell/data-pprint/default.nix b/pkgs/development/libraries/haskell/data-pprint/default.nix
index b78096a1835..08202a26b71 100644
--- a/pkgs/development/libraries/haskell/data-pprint/default.nix
+++ b/pkgs/development/libraries/haskell/data-pprint/default.nix
@@ -5,6 +5,7 @@ cabal.mkDerivation (self: {
   version = "0.2.3";
   sha256 = "1ygbhn399d4hlrdjmg7gxbr5akydb78p6qa80rv7m6j0fsqzbf6y";
   buildDepends = [ deepseq mtl parallel time ];
+  jailbreak = true;
   meta = {
     description = "Prettyprint and compare Data values";
     license = self.stdenv.lib.licenses.bsd3;