[Development] Switching Qt default builds to C++20 where supported

[Thiago Macieira]

On Monday 14 October 2024 10:31:22 GMT-7 Thiago Macieira wrote:
> On Monday 14 October 2024 09:53:56 GMT-7 Thiago Macieira wrote:
> > > The last time we discussed this was at QtCS24
> > > (https://wiki.qt.io/QtCS2024_C%2B%2B20), where IIRC the conclusion was
> > > that
> > > ATM, there is no reason to switch to C++20. So, it is definitely not in
> > > 6.9.
> > 
> > That was "not require C++20 for users". I'm not asking for that. I am
> > asking that we switch how we build Qt. Users won't be affected.
> 
> And no platforms will be dropped, no new compilers will be required. That
> was Phase I½ in the QtCS link above.
> 
> What's the drawback with this?

I'm going to assume that silence is consent to "there is no drawback" and will 
proceed with the implementation.

-- 
Thiago Macieira - thiago.macieira (AT) intel.com
  Principal Engineer - Intel DCAI Platform & System Engineering
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