hi! I compile boost with success !thank you for your help. I have another problem when i cross compile a program witch need boost . This is the error message:/home/arm-10.01.07/arm-linux/bin/../lib/gcc/arm-linux/3.4.3/../../../../arm-linux/lib/ ../server/.libs/libgnashserver.so: undefined reference to `boost::mutex::do_lock()' ../server/.libs/libgnashserver.so: undefined reference to `typeinfo for boost::lock_error' ../server/.libs/libgnashserver.so: undefined reference to `inflate' ../server/.libs/libgnashserver.so: undefined reference to `boost::detail::condition_impl::notify_all()' ../server/.libs/libgnashserver.so: undefined reference to `boost::detail::condition_impl::~condition_impl()' ../server/.libs/libgnashserver.so: undefined reference to `boost::detail::condition_impl::do_wait(pthread_mutex_t*)' ../server/.libs/libgnashserver.so: undefined reference to `inflateInit_' ../server/.libs/libgnashserver.so: undefined reference to `boost::detail::condition_impl::condition_impl()' ../server/.libs/libgnashserver.so: undefined reference to `boost::mutex::do_unlock(boost::mutex::cv_state&)' ../server/.libs/libgnashserver.so: undefined reference to `boost::mutex::do_lock(boost::mutex::cv_state&)' /home/arm-10.01.07/gnash-arm-test/gnash-sources/libbase/.libs/libgnashbase.so: undefined reference to `inflateReset' ../server/.libs/libgnashserver.so: undefined reference to `boost::mutex::mutex()' ../server/.libs/libgnashserver.so: undefined reference to `boost::lock_error::lock_error()' ../server/.libs/libgnashserver.so: undefined reference to `boost::lock_error::~lock_error()' ../server/.libs/libgnashserver.so: undefined reference to `inflateEnd' ../server/.libs/libgnashserver.so: undefined reference to `boost::mutex::do_unlock()' ../server/.libs/libgnashserver.so: undefined reference to `boost::mutex::~mutex()' collect2: ld returned 1 exit status Have you got an idea ? it seems to be a problem of link... ___________________________________________________________________________ Découvrez une nouvelle façon d'obtenir des réponses à toutes vos questions ! Profitez des connaissances, des opinions et des expériences des internautes sur Yahoo! Questions/Réponses http://fr.answers.yahoo.com