The type of pthread_sigqueue is reported in the manpage (both online and in any package I can find) as int pthread_sigqueue(pthread_t *thread, int sig, const union sigval value); I believe this is incorrect; thread is a pthread_t, not a pthread_t*. This can be easily verified by looking at the source: http://www.eglibc.org/cgi-bin/viewvc.cgi/trunk/libc/nptl/sysdeps/unix/sysv/linux/pthread_sigqueue.c?view=markup (Or just by noting that throughout pthreads, pthread_ts are passed by value. The only other pthread_t * that comes to mind is the one initialized by pthread_create.) I'd send a patch myself but I'm not clear where the manpages sources are and don't have time to go searching right now--my apologies. -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html