From 54f108a006b3218bfb49e2e6a5d8c673e449536f Mon Sep 17 00:00:00 2001
From: jzmaddock <john@johnmaddock.co.uk>
Date: Thu, 15 Dec 2016 18:29:58 +0000
Subject: [PATCH] MSVC compatible compilers may have __has_include but still
 set __cplusplus to obsolete versions numbers for MSVC compatibility (ie
 Intel).

---
 include/boost/config/stdlib/dinkumware.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/boost/config/stdlib/dinkumware.hpp b/include/boost/config/stdlib/dinkumware.hpp
index f08f44f0..8cf5d4dd 100644
--- a/include/boost/config/stdlib/dinkumware.hpp
+++ b/include/boost/config/stdlib/dinkumware.hpp
@@ -150,7 +150,7 @@
 #if defined(__has_include)
 #if !__has_include(<shared_mutex>)
 #  define BOOST_NO_CXX14_HDR_SHARED_MUTEX
-#elif __cplusplus < 201402
+#elif (__cplusplus < 201402) && !defined(_MSC_VER)
 #  define BOOST_NO_CXX14_HDR_SHARED_MUTEX
 #endif
 #elif !defined(_CPPLIB_VER) || (_CPPLIB_VER < 650)