From bcd8fded1aac3382b438ac49208111b716a1acd5 Mon Sep 17 00:00:00 2001
From: Petr Rockai <me@mornfall.net>
Date: Sun, 15 Jul 2012 21:48:17 +0200
Subject: [PATCH] In ghc 7.2.2 (and 7.2.1) deepseq is not yet part of the core
 set.

---
 pkgs/top-level/haskell-defaults.nix | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/pkgs/top-level/haskell-defaults.nix b/pkgs/top-level/haskell-defaults.nix
index 64291854a03..1c0f065884e 100644
--- a/pkgs/top-level/haskell-defaults.nix
+++ b/pkgs/top-level/haskell-defaults.nix
@@ -27,9 +27,14 @@
       binary = null; # now a core package
     };
 
-  ghc722Prefs = ghc741Prefs;
+  ghc722Prefs =
+    self : self.haskellPlatformArgs_2012_2_0_0 self // {
+      haskellPlatform = self.haskellPlatform_2012_2_0_0;
+      binary = null; # a core package
+      deepseq = self.deepseq_1_1_0_2;
+    };
 
-  ghc721Prefs = ghc741Prefs;
+  ghc721Prefs = ghc722Prefs;
 
   ghc704Prefs =
     self : self.haskellPlatformArgs_2011_4_0_0 self // {