Merge of top-level Makefile.in

[Alexandre Petit-Bianco]

Alexandre Oliva writes:

> I had to bring some changes from configure.in and configure too.
> Because my set-up is GCC-centric, I haven't tested this patch, so
> I'd appreciate if someone with a libgcj-centric set-up could give it
> a try, before I check it in and break everything again :-) Thanks!

I will. But I doubt I'll be able to do it this week-end. I'll try to
give you an answer by the beginning of next week.

Thanks!

./A