Patch: switch to __builtin_alloca

[Jeff Sturm]

Tom Tromey wrote:
> I want to convince Mark to enable Java automatically on supported
> platforms.  Do we want to automatically build Java everywhere?  I
> doubt we want to field a lot of "threads and gc don't work" bug
> reports.  But maybe that is an exaggerated fear.

My guess is comparatively few people will actually attempt to use gcj enough to
realize threads don't work.

If g77 gets built by default, why not gcj?  (We used to get chill if we forget
--enable-languages for heavens sake.)

--
Jeff Sturm
jeff.sturm@commerceone.com