From 472a94d371cc612e344ea57247c1517f8c1b4736 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andrzej=20Krzemie=C5=84ski?= <akrzemi1@gmail.com>
Date: Thu, 15 Oct 2015 08:48:34 +0200
Subject: [PATCH] CFG: handling C++03 compilers

---
 include/boost/optional/detail/optional_config.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/boost/optional/detail/optional_config.hpp b/include/boost/optional/detail/optional_config.hpp
index 6e1fa8b..5f88f3f 100644
--- a/include/boost/optional/detail/optional_config.hpp
+++ b/include/boost/optional/detail/optional_config.hpp
@@ -82,7 +82,7 @@
 
 #endif // defined(__GNUC__)
 
-#if defined(__GNUC__)
+#if (defined __GNUC__) && (!defined BOOST_NO_CXX11_RVALUE_REFERENCES)
 // On some initial rvalue reference implementations GCC does it in a strange way,
 // preferring perfect-forwarding constructor to implicit copy constructor.