From a27bc8b3174fa1847b5ca9f85d921c3e472cbeb1 Mon Sep 17 00:00:00 2001
From: Shea Levy <shea@shealevy.com>
Date: Wed, 1 Mar 2017 11:03:00 -0500
Subject: [PATCH] haskell generic-builder: Pass through the ghcEnv.

Will be useful for nix-buffer
---
 pkgs/development/haskell-modules/generic-builder.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/development/haskell-modules/generic-builder.nix b/pkgs/development/haskell-modules/generic-builder.nix
index 42ea03693ecd..7c3f64241934 100644
--- a/pkgs/development/haskell-modules/generic-builder.nix
+++ b/pkgs/development/haskell-modules/generic-builder.nix
@@ -303,7 +303,7 @@ stdenv.mkDerivation ({
 
   passthru = passthru // {
 
-    inherit pname version;
+    inherit pname version ghcEnv;
 
     isHaskellLibrary = hasActiveLibrary;