From f723b4dcb49e62778b31dc710745a2bc5c766291 Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Mon, 11 Jun 2012 15:07:33 +0000
Subject: [PATCH] haskell-defaults.nix: added empty 'haskellPlatform' attribute
 to ghcHEADPrefs

Writing generic expressions is easier if this attribute always exists.

svn path=/nixpkgs/trunk/; revision=34459
---
 pkgs/top-level/haskell-defaults.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pkgs/top-level/haskell-defaults.nix b/pkgs/top-level/haskell-defaults.nix
index fb82245344c..f566270d3df 100644
--- a/pkgs/top-level/haskell-defaults.nix
+++ b/pkgs/top-level/haskell-defaults.nix
@@ -17,6 +17,7 @@
 
   ghcHEADPrefs =
     self : self.haskellPlatformArgs_future self // {
+      haskellPlatform = null;
       binary = null; # now a core package
     };