> It does seem strange that the 2.8/2.9BSD libjobs functionality > from 1983/4 was implemented rather than the 4.2/3BSD signal > semantics. So System V has finally caught up with 2.9BSD, > congrats ;-) System V Release 4 offers the POSIX signal mechanism, so it's finally caught up with (and passed) 4.3BSD (4.4BSD will presumably catch up there).