Minor configuration items

[Michael D. Godfrey]

>
> I don't understand why this would happen.  The streamoff type in
> Octave (as a wrapper around std::streamoff) isn't used for anything,
> at least as far as I can tell.  I have a patch to remove it, and I
> don't see why I shouldn't just do that.  I've mentioned this
> possibility a few times before and haven't seen any complaints.
I am sure that I do not understand this either.  If the change above 
does not do
any harm, please go ahead.  I will try a new compilation on my Mac 10.5.3.

Michael