From 96515b0c0d8c515fff60ef3b72cd7cc9837142c3 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Wed, 13 Apr 2016 11:00:23 +0200
Subject: [PATCH] Fix std::atomic_flag build failure

http://hydra.nixos.org/build/34453794
---
 src/libstore/local-store.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/libstore/local-store.cc b/src/libstore/local-store.cc
index c928e7cb6..d6e1e4d7e 100644
--- a/src/libstore/local-store.cc
+++ b/src/libstore/local-store.cc
@@ -10,6 +10,7 @@
 #include <iostream>
 #include <algorithm>
 #include <cstring>
+#include <atomic>
 
 #include <sys/types.h>
 #include <sys/stat.h>