From c888d970139da81bbc49175e3cb810d5b718ae8b Mon Sep 17 00:00:00 2001
From: Vincent Laporte <Vincent.Laporte@gmail.com>
Date: Wed, 21 Feb 2018 17:21:11 +0000
Subject: [PATCH] ocamlPackages.cil: fix build on Darwin

---
 pkgs/development/ocaml-modules/cil/default.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pkgs/development/ocaml-modules/cil/default.nix b/pkgs/development/ocaml-modules/cil/default.nix
index 99b5f92b340..0394266353c 100644
--- a/pkgs/development/ocaml-modules/cil/default.nix
+++ b/pkgs/development/ocaml-modules/cil/default.nix
@@ -11,6 +11,7 @@ stdenv.mkDerivation {
   createFindlibDestdir = true;
 
   preConfigure = ''
+    substituteInPlace Makefile.in --replace 'MACHDEPCC=gcc' 'MACHDEPCC=$(CC)'
     export FORCE_PERL_PREFIX=1
   '';
   prefixKey = "-prefix=";