NetBSD still uses curses by default. One _could_ install ncurses, but I
don't have access to a NetBSD box with permissions to install ncurses,
so I'm experimenting to see how far we can get with just curses. So far
most of the apps seem to work, with the exception of one bug that I'll
commit next.
At this point I'm done making this repo ncurses-ready. Remaining files
that allude to stdin/stdout/stderr:
lauxlib.c - unclear how these primitives should work; may kill them
ldblib.c - unclear what debug experience should be
liolib.c - might kill or simulate these
luac.c - let the compiler continue to be a terminal program