Elm on AIX PS/2

[C Lance Moxley]

Thanks to Greg Poist from IBM, Palo Alto! The problem with
leavembox.c was that "#include <unistd.h>" was needed.

Now, does anyone know how to resolve the problem that elm
wants to use /usr/spool/mail/userid and AIX puts the mail
in $HOME/.newmail?

Thanks,
Lance-Moxley at uiuc.edu