id summary reporter owner description type status milestone component version severity resolution keywords cc 3690 regex depends on pthread library when boost is built with threading=single jdccdevel@… Vladimir Prus "regex depends on pthread library when boost is built with threading=single static_mutex.cpp uses the functions pthread_mutex_unlock and pthread_mutex_lock. This creates a dependancy on pthreads which should not exist when compiled with threading=single. This is, in particular, a problem when static linking on AIX. It appears that BOOST_HAS_THREADS is still being set when threading=single is set on the bjam command line." Bugs new Boost 1.42.0 build Boost 1.40.0 Problem