Change x86 default arch for 4.5?

[David Daney]

On 02/18/2010 03:30 PM, Joe Buck wrote:
> On Thu, Feb 18, 2010 at 02:09:14PM -0800, Jason Merrill wrote:
>> I periodically get bitten by bug 34115: a compiler configured without
>> --with-arch on i686-pc-linux-gnu doesn't support atomics.  I think we
>> would only need to bump the default to i486 to get atomic support.  Can
>> we reconsider the default for 4.5?
>
> Is anyone still manufacturing x86 CPUs that don't support the atomic
> instructions?

Should it just be a question of 'manufacturing'?  Or should 'using' be a 
criterion for any decision?

Not that I disagree with Jason's suggestion, it is probably the right 
choice.

David Daney