Hi, We have a problem with pthread library on Linux 9.0/gcc 3.2.2. We have written a wrapper for pthread calls on linux 8.0/gcc 3.2, and this is built as an archive library - And one of our products is using this lirary. Now we are trying to build our product on linux 9.0/gcc 3.2.2, and uses our archive threads library (which is built on 3.2/8.0). The linking is done as "-lwrapperlibrary -lpthread" The application crashes or sometimes hangs at pthread_mutex_lock(). But works fine, when we rebuild the threads library on linux 9.0/gcc 3.2.2., but we may want to avoid this - We even tried linking with pthread_nonshared.a, but didnt help. Can someone give details on the difference in the pthreads implemantion, and why this pthread_nonshared.a library. Thanks in advance Regards Wilson www.wsspl.com