Hi Mike, I was looking at adding manual page documentation for pthread_clockjoin_np(), but it's not clear to me from the code what clocks are supported by the API, and the glibc info docs seem to be silent on this point. What clocks are supported? Thanks, Michael -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/