From 2656f1b4a1b7aa044066074f92b58b9432c19eab Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Sat, 19 Oct 2013 13:23:27 +0200
Subject: [PATCH] haskell-data-pprint: add missing fetchurl and '-p2' flag

---
 pkgs/development/libraries/haskell/data-pprint/default.nix | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/libraries/haskell/data-pprint/default.nix b/pkgs/development/libraries/haskell/data-pprint/default.nix
index 8b73d5be568d..351f1d834776 100644
--- a/pkgs/development/libraries/haskell/data-pprint/default.nix
+++ b/pkgs/development/libraries/haskell/data-pprint/default.nix
@@ -1,4 +1,4 @@
-{ cabal, deepseq, mtl, parallel, time }:
+{ cabal, deepseq, mtl, parallel, time, fetchurl }:
 
 cabal.mkDerivation (self: {
   pname = "data-pprint";
@@ -9,6 +9,7 @@ cabal.mkDerivation (self: {
                           sha256 = "0wxvc7cbv4qpjl5zxy41863qpzda2ma75pmnnqx29qyh3rxp7biw";
                         })
             ];
+  patchFlags = "-p2";
   meta = {
     description = "Prettyprint and compare Data values";
     license = self.stdenv.lib.licenses.bsd3;