grant@netbsd.org said:
> > depend on groff 
> ncurses should not depend on groff, it builds
> perfectly fine without it

Well, it builds, but it does not install cleanly. It tries to
filter some manpages trough "tbl". (This is explicitely
enabled though a CONFIGURE_ARG.)

> this also introduces a dependency
> on a c++ package very low down in the dependency tree

It is only a BUILD_DEPEND, and even that only on systems
where it is not in the base system.

> add a distinction between
> requiring nroff(1) and groff(1)

Do you have any ideas how groff/builtin.mk should be
extended for this? (Extending tools.mk as proposed
is also an option.)

best regards
Matthias