From ec00fe09654d44c1b5a3625b95e73c66de865fbd Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Mon, 16 Dec 2013 13:59:42 +0100
Subject: [PATCH] haskell-doctest: don't build haddock documentation with
 pre-7.4 versions of GHC

---
 pkgs/development/libraries/haskell/doctest/default.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pkgs/development/libraries/haskell/doctest/default.nix b/pkgs/development/libraries/haskell/doctest/default.nix
index 687314266839..46e69c95f940 100644
--- a/pkgs/development/libraries/haskell/doctest/default.nix
+++ b/pkgs/development/libraries/haskell/doctest/default.nix
@@ -14,6 +14,7 @@ cabal.mkDerivation (self: {
     stringbuilder syb transformers
   ];
   doCheck = false;
+  noHaddock = self.stdenv.lib.versionOlder self.ghc.version "7.4";
   meta = {
     homepage = "https://github.com/sol/doctest-haskell#readme";
     description = "Test interactive Haskell examples";