From bbc3082ebd38245bede3505d248a75272e02b7bb Mon Sep 17 00:00:00 2001
From: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
Date: Sun, 8 Jan 2017 21:16:52 -0500
Subject: [PATCH] mcgrid: pkgconfig is the only way to locate mcgrid

---
 pkgs/development/libraries/physics/mcgrid/default.nix | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/libraries/physics/mcgrid/default.nix b/pkgs/development/libraries/physics/mcgrid/default.nix
index 033bf2f214f..aabe132e73b 100644
--- a/pkgs/development/libraries/physics/mcgrid/default.nix
+++ b/pkgs/development/libraries/physics/mcgrid/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, fastnlo, rivet, sherpa }:
+{ stdenv, fetchurl, fastnlo, rivet, pkgconfig, sherpa }:
 
 stdenv.mkDerivation rec {
   name = "mcgrid-${version}";
@@ -10,6 +10,7 @@ stdenv.mkDerivation rec {
   };
 
   buildInputs = [ fastnlo rivet ];
+  propagatedNativeBuildInputs = [ pkgconfig ];
 
   preConfigure = ''
     substituteInPlace mcgrid.pc.in \