GCC 3.1 Branch

[Richard Kenner]

    I intend to create the GCC 3.1 branch sometime tomorrow.

    If you know of a reason why we should not create the branch, please
    let me know.  (I'm not sure what this would be, but just in case...)

At the moment, Sparc doesn't bootstrap.  It would be nice to get this
fixed and then wait at least a day for some testing before the branch.
I'd suggest Monday, assuming it actually is fixed tonight.