From e587853f08782e298259c270fcdd73420f422d49 Mon Sep 17 00:00:00 2001
From: Aurelius84 <zhangliujie@baidu.com>
Date: Mon, 31 May 2021 15:41:18 +0800
Subject: [PATCH] [CustomOp]Specify -std=c++14 cflags by default (#33213)

---
 python/paddle/utils/cpp_extension/cpp_extension.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/python/paddle/utils/cpp_extension/cpp_extension.py b/python/paddle/utils/cpp_extension/cpp_extension.py
index e8a4253ad3e..dcaa1ca15e5 100644
--- a/python/paddle/utils/cpp_extension/cpp_extension.py
+++ b/python/paddle/utils/cpp_extension/cpp_extension.py
@@ -434,7 +434,7 @@ class BuildExtension(build_ext, object):
                 add_compile_flag(['-D_GLIBCXX_USE_CXX11_ABI=1'], cflags)
 
                 add_std_without_repeat(
-                    cflags, self.compiler.compiler_type, use_std14=False)
+                    cflags, self.compiler.compiler_type, use_std14=True)
                 original_compile(obj, src, ext, cc_args, cflags, pp_opts)
             finally:
                 # restore original_compiler
-- 
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