Subj : posix semaphores on AIX
To   : comp.programming.threads
From : jpknott@gmail.com
Date : Thu Jul 28 2005 05:25 pm

Are posix semaphores supported on AIX (5.1 - 5.2)?

I am trying to port some thread-aware code which runs fine on linux and
Solaris.   However, on AIX when I call sem_open I am getting -1, with
errno set to ENOSYS.

It seems rather incredible that posix semaphores are simply not
implemented, so I am guessing that I am either linking incorrectly, or
perhaps not defining some critical macro when compiling.

I'm trying to _compile_ with gcc, which may be part of the problem...
But before I retool my build environment to use xlC, it would be nice
to know whether I am wasting my time (and therefore need to switch to
sysV semaphores instead).

Any ideas?

.