From e08a7a353121bff83f902b46317b80c7c4365e24 Mon Sep 17 00:00:00 2001
From: Jinhao <cnjinhao@hotmail.com>
Date: Sat, 21 Dec 2019 05:18:28 +0800
Subject: [PATCH] add workaround of inline namespace for c++11

---
 include/nana/filesystem/filesystem.hpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/include/nana/filesystem/filesystem.hpp b/include/nana/filesystem/filesystem.hpp
index fe39c8d7..11f5da39 100644
--- a/include/nana/filesystem/filesystem.hpp
+++ b/include/nana/filesystem/filesystem.hpp
@@ -577,10 +577,14 @@ namespace std
 {
     namespace filesystem
     {
-        inline namespace nana_filesystem
+#if defined(_MSC_VER) && ((!defined(_MSVC_LANG)) || _MSVC_LANG < 201703)
+		using namespace ::nana::filesystem;
+#else
+		inline namespace nana_filesystem
         {
             using namespace ::nana::filesystem;
         }
+#endif
     }
 }