From eb428110790ec5701572757e8c72be68f264e01f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ion=20Gazta=C3=B1aga?= <igaztanaga@gmail.com>
Date: Tue, 23 Aug 2016 02:13:30 +0200
Subject: [PATCH] Delegating constructors detection, as Boost.Config does not
 yet provide it.

---
 include/boost/container/detail/workaround.hpp | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/include/boost/container/detail/workaround.hpp b/include/boost/container/detail/workaround.hpp
index ae9151c..9b74d85 100644
--- a/include/boost/container/detail/workaround.hpp
+++ b/include/boost/container/detail/workaround.hpp
@@ -29,6 +29,20 @@
    #define BOOST_CONTAINER_UNIMPLEMENTED_PACK_EXPANSION_TO_FIXED_LIST
 #endif
 
+#if defined(BOOST_GCC_VERSION)
+#  if (BOOST_GCC_VERSION < 40700) || !defined(BOOST_GCC_CXX11)
+#     define BOOST_CONTAINER_NO_CXX11_DELEGATING_CONSTRUCTORS
+#  endif
+#elif defined(BOOST_MSVC)
+#  if _MSC_FULL_VER < 180020827
+#     define BOOST_CONTAINER_NO_CXX11_DELEGATING_CONSTRUCTORS
+#  endif
+#elif defined(BOOST_CLANG)
+#  if !__has_feature(cxx_delegating_constructors)
+#     define BOOST_CONTAINER_NO_CXX11_DELEGATING_CONSTRUCTORS
+#  endif
+#endif
+
 #if !defined(BOOST_FALLTHOUGH)
    #define BOOST_CONTAINER_FALLTHOUGH
 #else