From d941192e747eeaeb934e797dd45ce294de4bc3aa Mon Sep 17 00:00:00 2001
From: tensor-tang <tangjian03@baidu.com>
Date: Wed, 29 Aug 2018 09:52:02 +0800
Subject: [PATCH] fix gcc53 on cpu vec (#13020)

---
 paddle/fluid/operators/math/cpu_vec.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/paddle/fluid/operators/math/cpu_vec.h b/paddle/fluid/operators/math/cpu_vec.h
index 0bae926e9..5693761e9 100644
--- a/paddle/fluid/operators/math/cpu_vec.h
+++ b/paddle/fluid/operators/math/cpu_vec.h
@@ -14,6 +14,7 @@ limitations under the License. */
 
 #pragma once
 #include <cmath>
+#include <functional>
 #include <string>
 #include "paddle/fluid/platform/cpu_info.h"
 #ifdef __AVX__
-- 
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