From 377014f1a49eb17d329396c2f74f0148ee74931c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=BCrgen=20Hunold?= <jhunold@gmx.eu>
Date: Wed, 27 May 2015 15:39:52 +0200
Subject: [PATCH] Suppress clang warning about 'using namespace
 boost::placeholders'

warning: using namespace directive in global context in header [-Wheader-hygiene]
The warning is unhelpfull as this a backwards-compatibility fix.
---
 include/boost/bind.hpp | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/include/boost/bind.hpp b/include/boost/bind.hpp
index 336f17c..0e03b60 100644
--- a/include/boost/bind.hpp
+++ b/include/boost/bind.hpp
@@ -21,6 +21,17 @@
 
 #include <boost/bind/bind.hpp>
 
+#if defined(BOOST_CLANG)
+# pragma clang diagnostic push
+#  if  __has_warning("-Wheader-hygiene")
+#   pragma clang diagnostic ignored "-Wheader-hygiene"
+# endif
+#endif
+
 using namespace boost::placeholders;
 
+#if defined(BOOST_CLANG)
+# pragma clang diagnostic pop
+#endif
+
 #endif // #ifndef BOOST_BIND_HPP_INCLUDED