From 65a228a2b1b74c2132e629534303bcb8deecddb5 Mon Sep 17 00:00:00 2001
From: Charles Strahan <charles@cstrahan.com>
Date: Sat, 25 Feb 2017 17:38:38 -0500
Subject: [PATCH] haskellPackages: use makeExtensible

---
 pkgs/development/haskell-modules/default.nix | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/haskell-modules/default.nix b/pkgs/development/haskell-modules/default.nix
index d2ecc338128..2ee01bf9e11 100644
--- a/pkgs/development/haskell-modules/default.nix
+++ b/pkgs/development/haskell-modules/default.nix
@@ -6,7 +6,7 @@
 
 let
 
-  inherit (stdenv.lib) fix' extends;
+  inherit (stdenv.lib) fix' extends makeExtensible;
 
   haskellPackages = self:
     let
@@ -109,7 +109,7 @@ let
 
 in
 
-  fix'
+  makeExtensible
     (extends overrides
       (extends packageSetConfig
         (extends compilerConfig