From 1102c77919765b22824ee481afd3bbd618ddb457 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <edolstra@gmail.com>
Date: Tue, 24 Jan 2017 10:53:18 +0100
Subject: [PATCH] shell.nix: Add a flag for using clang

---
 shell.nix | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/shell.nix b/shell.nix
index dd4484105..4c1608230 100644
--- a/shell.nix
+++ b/shell.nix
@@ -1,6 +1,8 @@
+{ useClang ? false }:
+
 with import <nixpkgs> {};
 
-stdenv.mkDerivation {
+(if useClang then clangStdenv else stdenv).mkDerivation {
   name = "nix";
 
   buildInputs =