Multiple file compilation patch

[Tom Tromey]

>>>>> "Mark" == Mark Wielaard <mark@klomp.org> writes:

Mark> It might be a good idea to make a wrapper for gcj which takes
Mark> the same arguments as the javac tool.

The goal has been to make `gcj -C' such a wrapper.
However we haven't really tried to keep up as javac changes.
I would like to do this, but I don't think this is important for gcc 3.0.

I think there is already a PR about this, or at least one that is very
similar.

Tom