From f415ce2953f8163d4428dd003b9e11d1b4c87e23 Mon Sep 17 00:00:00 2001
From: Charles Strahan <charles.c.strahan@gmail.com>
Date: Thu, 9 Apr 2015 14:49:23 -0400
Subject: [PATCH] haskell: bring back wl-pprint patch

partially reverts 5742215
---
 .../development/haskell-modules/configuration-ghc-7.10.x.nix | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pkgs/development/haskell-modules/configuration-ghc-7.10.x.nix b/pkgs/development/haskell-modules/configuration-ghc-7.10.x.nix
index 2e47f5c25ce..fc4e365068b 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-7.10.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-7.10.x.nix
@@ -226,6 +226,11 @@ self: super: {
     sha256 = "1lwwvxyhxcmppdapbgpfhwi7xc2z78qir03xjrpzab79p2qyq7br";
   });
 
+  wl-pprint = overrideCabal super.wl-pprint (drv: {
+    postPatch = "sed -i '113iimport Prelude hiding ((<$>))' Text/PrettyPrint/Leijen.hs";
+    jailbreak = true;
+  });
+
   # https://github.com/kazu-yamamoto/unix-time/issues/30
   unix-time = dontCheck super.unix-time;