Hi, I'm trying to compile a code which uses the boost thread library, but I get the following error: CC -library=stlport4 -features=tmplife -features=tmplrefstatic -mt -c -o t t.cpp "/opt/boost/include/boost/thread/pthread/mutex.hpp", line 142: Error: The function "pthread_mutex_timedlock" must have a prototype. "/opt/boost/include/boost/thread/pthread/mutex.hpp", line 142: Error: The function "pthread_mutex_timedlock" must have a prototype. "/opt/boost/include/boost/thread/detail/thread.hpp", line 344: Error: boost::thread::thread(boost::thread&) is not accessible from boost::move(boost::detail::thread_move_tboost::thread). "/opt/boost/include/boost/thread/pthread/recursive_mutex.hpp", line 179: Error: The function "pthread_mutex_timedlock" must have a prototype. "/opt/boost/include/boost/thread/pthread/recursive_mutex.hpp", line 179: Error: The function "pthread_mutex_timedlock" must have a prototype. 5 Error(s) detected. make: *** [t] Error 5 the sample source code in question here just a single include: #include This is with boost 1.40.0. I wonder what I'm doing wrong.. Akos