From c675ebff8bb468ecadb69729eaf2288c9a2f964b Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Sun, 15 Dec 2013 19:08:52 +0100
Subject: [PATCH] haskell-quickcheck-io: revert hard-coding of HUnit and
 QuickCheck versions

That patch broke the build on modern platforms. Instead of hard-coding
those versions globally, we should do so on a per-platform basis in
haskell-defaults.nix.
---
 pkgs/top-level/haskell-packages.nix | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index af8eb5ea7df..f00ac246546 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -1832,10 +1832,7 @@ let result = let callPackage = x : y : modifyPrio (newScope result.finalReturn x
 
   quickcheckInstances = callPackage ../development/libraries/haskell/quickcheck-instances {};
 
-  quickcheckIo = callPackage ../development/libraries/haskell/quickcheck-io {
-    HUnit = self.HUnit_1_2_5_2;
-    QuickCheck = self.QuickCheck2;
-  };
+  quickcheckIo = callPackage ../development/libraries/haskell/quickcheck-io {};
 
   qrencode = callPackage ../development/libraries/haskell/qrencode {
     inherit (pkgs) qrencode;