CXXD_HAS_STD_THREAD — Determines whether the C++ standard thread implementation or the Boost thread implementation has been chosen.
// In header: <boost/cxx_dual/impl/thread.hpp> CXXD_HAS_STD_THREAD
The object-like macro expands to: 1 if the C++ standard thread implementation has been chosen 0 if the Boost thread implementation has been chosen.
