Dear Sir, Even i cant use the sample that shifted with, its not working!!! Any idea if its ever worked in Fedora 12 or Red hat linux? [root at example lib]# gcc /home/sun/Downloads/pjsip/pjproject-1.6/pjlib/src/pjlib-samples/log.c /usr/local/lib/libpj-i686-pc-linux-gnu.a -o test /usr/local/lib/libpj-i686-pc-linux-gnu.a(os_core_unix.o): In function `pj_sem_destroy': os_core_unix.c:(.text+0x429): undefined reference to `sem_destroy' /usr/local/lib/libpj-i686-pc-linux-gnu.a(os_core_unix.o): In function `pj_sem_post': os_core_unix.c:(.text+0x494): undefined reference to `sem_post' /usr/local/lib/libpj-i686-pc-linux-gnu.a(os_core_unix.o): In function `pj_sem_trywait': os_core_unix.c:(.text+0x4d3): undefined reference to `sem_trywait' /usr/local/lib/libpj-i686-pc-linux-gnu.a(os_core_unix.o): In function `pj_sem_wait': os_core_unix.c:(.text+0x549): undefined reference to `sem_wait' /usr/local/lib/libpj-i686-pc-linux-gnu.a(os_core_unix.o): In function `pj_sem_create': os_core_unix.c:(.text+0x61b): undefined reference to `sem_init' /usr/local/lib/libpj-i686-pc-linux-gnu.a(os_core_unix.o): In function `pj_rwmutex_destroy': os_core_unix.c:(.text+0x71d): undefined reference to `pthread_rwlock_destroy' /usr/local/lib/libpj-i686-pc-linux-gnu.a(os_core_unix.o): In function `pj_rwmutex_unlock_write': os_core_unix.c:(.text+0x74d): undefined reference to `pthread_rwlock_unlock' /usr/local/lib/libpj-i686-pc-linux-gnu.a(os_core_unix.o): In function `pj_rwmutex_lock_write': os_core_unix.c:(.text+0x78d): undefined reference to `pthread_rwlock_wrlock' /usr/local/lib/libpj-i686-pc-linux-gnu.a(os_core_unix.o): In function `pj_rwmutex_lock_read': os_core_unix.c:(.text+0x7bd): undefined reference to `pthread_rwlock_rdlock' /usr/local/lib/libpj-i686-pc-linux-gnu.a(os_core_unix.o): In function `pj_rwmutex_create': os_core_unix.c:(.text+0x80c): undefined reference to `pthread_rwlock_init' /usr/local/lib/libpj-i686-pc-linux-gnu.a(os_core_unix.o): In function `init_mutex': os_core_unix.c:(.text+0x98d): undefined reference to `pthread_mutexattr_init' os_core_unix.c:(.text+0x9c1): undefined reference to `pthread_mutexattr_settype' os_core_unix.c:(.text+0x9dd): undefined reference to `pthread_mutexattr_destroy' os_core_unix.c:(.text+0xa04): undefined reference to `pthread_mutexattr_settype' /usr/local/lib/libpj-i686-pc-linux-gnu.a(os_core_unix.o): In function `pj_mutex_trylock': os_core_unix.c:(.text+0xc1c): undefined reference to `pthread_mutex_trylock' /usr/local/lib/libpj-i686-pc-linux-gnu.a(os_core_unix.o): In function `pj_thread_local_set': os_core_unix.c:(.text+0xff4): undefined reference to `pthread_setspecific' /usr/local/lib/libpj-i686-pc-linux-gnu.a(os_core_unix.o): In function `pj_thread_local_alloc': os_core_unix.c:(.text+0x10bd): undefined reference to `pthread_key_create' /usr/local/lib/libpj-i686-pc-linux-gnu.a(os_core_unix.o): In function `pj_thread_join': os_core_unix.c:(.text+0x11fc): undefined reference to `pthread_join' /usr/local/lib/libpj-i686-pc-linux-gnu.a(os_core_unix.o): In function `pj_thread_create': os_core_unix.c:(.text+0x12ef): undefined reference to `pthread_create' /usr/local/lib/libpj-i686-pc-linux-gnu.a(os_core_unix.o): In function `pj_thread_local_get': os_core_unix.c:(.text+0xb98): undefined reference to `pthread_getspecific' /usr/local/lib/libpj-i686-pc-linux-gnu.a(os_core_unix.o): In function `pj_thread_local_free': os_core_unix.c:(.text+0x1098): undefined reference to `pthread_key_delete' collect2: ld returned 1 exit status Thank you Best regards Shamun -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20100731/b055f068/attachment.html>