Change x86 default arch for 4.5?

[Andrew Haley]

On 02/22/2010 12:29 AM, Erik Trulsson wrote:
> On Sun, Feb 21, 2010 at 11:35:11PM +0000, Dave Korn wrote:
>> On 21/02/2010 22:42, Erik Trulsson wrote:
>>
>>> Yes, it does if the user is using binaries compiled by somebody else,
>>> and that somebody else did not explicitly specify any CPU-flags.
>>>
>>> I believe that is the situation when installing most
>>> Linux-distributions for example.
>>
>>   No, surely not.  The linux distributions use configure options
>> when they package their compilers to choose the default with-cpu
>> and with-arch options, and those are quite deliberately chosen
>> according to the binary standards of the distro.  It is hardly a
>> case of "somebody else did not explicitly specify" cpu flags; they
>> in fact explicitly specified them according to the system
>> requirements for the distro.  If your distro says it doesn't
>> support i386, this is *why*!
> 
> Are you sure of that?  Really sure?
> Some Linux distributions almost certainly do as you describe, but all
> of them?  I doubt it.

And I doubt otherwise.  Linux distros put a great deal of thought into
which machines they are targeting with their binary distributions.
And the existence of one tiny distro somewhere that doesn't would not
change that fact.

Andrew.