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Re: GCC selftest improvements
Jeff Law <law@redhat.com> wrote:
> On 10/28/19 2:27 PM, Segher Boessenkool wrote:
>> On Mon, Oct 28, 2019 at 01:40:03PM -0600, Jeff Law wrote:
>>> On 10/25/19 6:01 PM, Gabriel Dos Reis wrote:
>>>> Jason, Jonathan - is the situation on the terrain really that dire that C++11 (or C++14) isn't at all available for platforms that GCC is bootstrapped from?
>>> The argument that I'd make is that's relatively uncommon (I know, I know
>>> AIX) that bootstrapping in those environments may well require first
>>> building something like gcc-9.
>>>
>>> I'd really like to see us move to C++11 or beyond. Sadly, I don't think
>>> we have any good mechanism for making this kind of technical decision
>>> when there isn't consensus.
>>
>> Which GCC version will be required to work as bootstrap compiler? Will
>> 4.8.5 be enough?
> I'd say gcc-9. What would we gain by making it 4.8 or anything else
> that old?
We’d have to use something older than 9 on earl(ier) Darwin since 9 will not
bootstrap with the system-provided tools.
ISTM that using a well-baked stable closed branch would be reasonable?
(so 7.5 or earlier, assuming that the decision is made after 7.5 rolls)
Iain