From b3d3a1c7eac48b67be8f774df418f615c5c515d4 Mon Sep 17 00:00:00 2001
From: Nikolay Amiantov <ab@fmap.me>
Date: Mon, 11 Apr 2016 18:28:05 +0300
Subject: [PATCH] openscenegraph: enable parallel building

---
 pkgs/development/libraries/openscenegraph/default.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/development/libraries/openscenegraph/default.nix b/pkgs/development/libraries/openscenegraph/default.nix
index 578d0219c020..2e2897b37a4c 100644
--- a/pkgs/development/libraries/openscenegraph/default.nix
+++ b/pkgs/development/libraries/openscenegraph/default.nix
@@ -20,6 +20,8 @@ stdenv.mkDerivation rec {
     pkgconfig kbproto SDL qt4 poppler librsvg gtk
   ];
 
+  enableParallelBuilding = true;
+
   cmakeFlags = [
     "-DMATH_LIBRARY="
     "-DCMAKE_C_FLAGS=-D__STDC_CONSTANT_MACROS=1"