id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
12977	BOOST_NO_CXX11_HDR_MUTEX always defined when Clang is used	anonymous	John Maddock	"Boost 1.63 boost/config/stdlib/libcpp.hpp has code


{{{
#if __cplusplus < 201103
...
#  define BOOST_NO_CXX11_HDR_MUTEX
...
}}}

So the macro is always defined despite of libc++ has std::mutex!
Boost.Context - C++11 library never uses std::mutex as a consequence."	Bugs	closed	To Be Determined	config	Boost 1.63.0	Problem	invalid