From 78bf8a6e5a9e3d3e321b6e5464cad97ad72e4fea Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Sat, 8 Nov 2014 00:44:03 +0100
Subject: [PATCH] hscolourBootstrap: disable Haddock phase for this tool in
 ghc-7.9.x to work around a compiler bug

 | haddock: internal error: expectJust getPackageDetails
---
 pkgs/top-level/haskell-packages.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 8f55ecae418..6bf538aeba9 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -3118,7 +3118,7 @@ self : let callPackage = x : y : modifyPrio (newScope self x y); in
         hyperlinkSource = false;
         configureFlags = super.configureFlags or "" +
           pkgs.lib.optionalString (pkgs.stdenv.lib.versionOlder "6.12" ghc.version) " --ghc-option=-rtsopts";
-      };
+      } // pkgs.stdenv.lib.optionalAttrs (pkgs.stdenv.lib.versionOlder "7.9" ghc.version) { noHaddock = true; };
     };
   };