-* Add MH-6.8.4 features into nmh (mostly done).
-* Maybe should move etcpath to sbr and add to libmh.
-* collect winsize, struct termio, etc... together into a ttyinfo
- structure.
-* use wait3 if not waitpid (maybe)
-* When do we need to add -lresolv for SunOS 4.1.x?