From 57ded03833df30d15fbfe9238f02ddf1a88d2c65 Mon Sep 17 00:00:00 2001
From: Frederik Rietdijk <fridh@fridh.nl>
Date: Wed, 22 Feb 2017 15:07:35 +0100
Subject: [PATCH] Python 3.4: use system expat and ffi

---
 pkgs/development/interpreters/python/cpython/3.4/default.nix | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pkgs/development/interpreters/python/cpython/3.4/default.nix b/pkgs/development/interpreters/python/cpython/3.4/default.nix
index 7508c39319e..44ee739fd39 100644
--- a/pkgs/development/interpreters/python/cpython/3.4/default.nix
+++ b/pkgs/development/interpreters/python/cpython/3.4/default.nix
@@ -1,5 +1,7 @@
 { stdenv, fetchurl
 , bzip2
+, expat
+, libffi
 , gdbm
 , lzma
 , ncurses
@@ -84,6 +86,8 @@ in stdenv.mkDerivation {
     "--enable-shared"
     "--with-threads"
     "--without-ensurepip"
+    "--with-system-expat"
+    "--with-system-ffi"
   ];
 
   preConfigure = ''