id summary reporter owner description type status milestone component version severity resolution keywords cc 9460 boost::statechart::fifo_worker not working well when BOOST_THREAD_DONT_PROVIDE_NESTED_LOCKS is defined myasnikovmaksim@… Andreas Huber "boost::statechart::fifo_worker uses boost::mutex::scoped_lock typedef which is not accessible when BOOST_THREAD_DONT_PROVIDE_NESTED_LOCKS is defined (this macro is defined when BOOST_THREAD_VERSION is set to 4).[[BR]] I suggest to replace scoped_lock typedefs with explicit boost::unique_lock usage.[[BR]] Best regards, Maksim." Bugs new To Be Determined statechart Boost 1.55.0 Problem