Hey, I didn't catch your reply in time, sorry about that. Anyway, the man page for pselect(2) in 10.12.1 doesn't have that section, and when I run your test pr

Hey, I didn't catch your reply in time, sorry about that. Anyway, the man page for pselect(2) in 10.12.1 doesn't have that section, and when I run your test program it prints "OK". So it appears that this particular bug was fixed. It only took them 2 years (could be less if it was fixed in 10.11) this time, which was an improvement over their turnaround for fixing the rename(2) bug[0]. :-P [0] http://www.weirdnet.nl/apple/rename.html http://www.weirdnet.nl/apple/rename.html