From 2991fdca52ce43218f166c706114ab294dd21b3c Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Mon, 20 Jan 2014 18:26:32 +0100
Subject: [PATCH] root: enable parallel building

---
 pkgs/applications/science/misc/root/default.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/applications/science/misc/root/default.nix b/pkgs/applications/science/misc/root/default.nix
index 6f484dc82241..f4de3ba6eea0 100644
--- a/pkgs/applications/science/misc/root/default.nix
+++ b/pkgs/applications/science/misc/root/default.nix
@@ -17,6 +17,8 @@ stdenv.mkDerivation rec {
   patches = [ ./cmake.patch ];
   patchFlags = "-p0";
 
+  enableParallelBuilding = true;
+
   meta = {
     homepage = "http://root.cern.ch/drupal/";
     description = "A data analysis framework";