From 8b67834bf32cebaaa9f98e2312a395f4cac03475 Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Thu, 1 May 2014 22:57:09 +0200
Subject: [PATCH] haskell-ghc-mod: make sure GHC <7.8 and >7.8 pick the same
 datadir install path

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

diff --git a/pkgs/development/libraries/haskell/ghc-mod/default.nix b/pkgs/development/libraries/haskell/ghc-mod/default.nix
index a4c576999bd..1f96f9365b5 100644
--- a/pkgs/development/libraries/haskell/ghc-mod/default.nix
+++ b/pkgs/development/libraries/haskell/ghc-mod/default.nix
@@ -17,6 +17,7 @@ cabal.mkDerivation (self: {
     ioChoice syb time transformers
   ];
   buildTools = [ emacs ];
+  configureFlags = "--datasubdir=${self.pname}-${self.version}";
   postInstall = ''
     cd $out/share/$pname-$version
     make