[Boost-users] Thread locks

Under 1.33.1 we used to do this: boost::try_mutex::scoped_try_lock lock(m_mutex); if (lock.locked() && m_threadState == UploadMap) { I'm not sure, but I think under 1.37 I should do: boost::try_mutex::scoped_try_lock lock(m_mutex); if (lock.owns_lock() && m_threadState == UploadMap) { When I do that, I get a crash when I exit that I never used to have. Any ideas? Larry