From 8c0c8e154b268791c93f42b22dc58241d2767627 Mon Sep 17 00:00:00 2001
From: Eric Fiselier <eric@efcs.ca>
Date: Fri, 21 Dec 2018 04:30:04 +0000
Subject: [PATCH] Don't forward declare _FilesystemClock in C++03

llvm-svn: 349887
---
 libcxx/include/chrono | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libcxx/include/chrono b/libcxx/include/chrono
index a5bb9afa8b27..cabf18c038c1 100644
--- a/libcxx/include/chrono
+++ b/libcxx/include/chrono
@@ -808,9 +808,11 @@ constexpr chrono::year                                  operator ""y(unsigned lo
 _LIBCPP_PUSH_MACROS
 #include <__undef_macros>
 
+#ifndef _LIBCPP_CXX03_LANG
 _LIBCPP_BEGIN_NAMESPACE_FILESYSTEM
 struct _FilesystemClock;
 _LIBCPP_END_NAMESPACE_FILESYSTEM
+#endif // !_LIBCPP_CXX03_LANG
 
 _LIBCPP_BEGIN_NAMESPACE_STD