From f0b9f401ae0f0029707a6275ece65d72a372b619 Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Mon, 4 Jun 2012 09:46:26 +0000
Subject: [PATCH] haskell-defaults.nix: switched ghc-7.5 pre-release to
 'future' configuration

svn path=/nixpkgs/trunk/; revision=34343
---
 pkgs/top-level/haskell-defaults.nix | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/pkgs/top-level/haskell-defaults.nix b/pkgs/top-level/haskell-defaults.nix
index 7db61f4f63e..9ff9c91aacc 100644
--- a/pkgs/top-level/haskell-defaults.nix
+++ b/pkgs/top-level/haskell-defaults.nix
@@ -15,7 +15,10 @@
   # Change these if you want to change the default versions of packages being used
   # for a particular GHC version.
 
-  ghcHEADPrefs = ghc741Prefs;
+  ghcHEADPrefs =
+    self : self.haskellPlatformArgs_future self // {
+      binary = null; # now a core package
+    };
 
   ghc741Prefs =
     self : self.haskellPlatformArgs_2012_2_0_0 self // {