From f6acd9661defc89c8486e02a0d885d2ce0bb0027 Mon Sep 17 00:00:00 2001
From: sdong <siying.d@fb.com>
Date: Thu, 31 Oct 2019 14:17:26 -0700
Subject: [PATCH] Add some include<functional>

---
 util/thread_local.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/util/thread_local.h b/util/thread_local.h
index 3adf8ba85..b15c6f25b 100644
--- a/util/thread_local.h
+++ b/util/thread_local.h
@@ -10,6 +10,7 @@
 #pragma once
 
 #include <atomic>
+#include <functional>
 #include <memory>
 #include <unordered_map>
 #include <vector>