Re: _cthread_init_routine and _cthread_exit_routine

[Neal H. Walfield]

This same change is needed for _cthread_exit_routine.  Or not.  As far
as I can tell, _cthread_exit_routine is not currently called when the
main thread exits as libc/sysdeps/mach/start.c would seem to suggest:
we use libc/sysdeps/generic/libc-start.c (which is called by
libc/sysdeps/i386/elf/start.S) to call main.  This isn't a problem for
libpthread as libpthread doesn't use this call back.  libcthreads, on
the other hand, does to wait until all other threads have exited.

I don't know how you want to handle this (if at all).

Thanks,
Neal