[RFC][top-level] Add configure test-case

[Alan Modra]

On Mon, Nov 07, 2022 at 06:23:45PM +0000, Joseph Myers wrote:
> On Mon, 7 Nov 2022, Alan Modra via Binutils wrote:
> 
> > a) that top-level binutils/gdb patches don't get applied to the gcc
> >    git repository in a timely manner, or
> 
> If a toplevel patch is approved for either repository, I think you should 
> treat it as approved for the other one without needing separate review.

Thanks Joseph, that's how I see it too.  Of course with the
understanding that binutils-gdb can't be used as a back door way of
sneaking in a gcc-specific change.

Can I get agreement among the gcc build maintainers that such a
policy is acceptable?

-- 
Alan Modra
Australia Development Lab, IBM