From de51e4a35b091c43e3c08efc79ae8e9f809e47ba Mon Sep 17 00:00:00 2001
From: Luke Adams <luke.adams@belljar.io>
Date: Fri, 14 Jul 2017 18:12:13 -0500
Subject: [PATCH] qwt6_qt4: enableParallelBuilding

---
 pkgs/development/libraries/qwt/6_qt4.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/development/libraries/qwt/6_qt4.nix b/pkgs/development/libraries/qwt/6_qt4.nix
index 7c037db0aed2..79b182b33b22 100644
--- a/pkgs/development/libraries/qwt/6_qt4.nix
+++ b/pkgs/development/libraries/qwt/6_qt4.nix
@@ -14,6 +14,8 @@ stdenv.mkDerivation rec {
 
   nativeBuildInputs = [ qmake4Hook ];
 
+  enableParallelBuilding = true;
+
   postPatch = ''
     sed -e "s|QWT_INSTALL_PREFIX.*=.*|QWT_INSTALL_PREFIX = $out|g" -i qwtconfig.pri
   '';