Patch: automatic dependencies for gcc

[David Daney]

Tom Tromey wrote:
>>>>>> "Diego" == Diego Novillo <dnovillo@google.com> writes:
> 
> Diego> Let's try again next year.
> 
> This was a really bad experience for me.  I am very unlikely to try to
> repeat it.
> 

My unsolicited take on this is:

This is what Stage-1 is for.

It is unfortunate that there were these problems, but don't let it sour 
your outlook towards hacking on GCC.

David Daney