[Development] Proposal to raise the minimum CMake version needed to build and use Qt 6.9

[Thiago Macieira]

On Wednesday 20 November 2024 11:50:47 Pacific Standard Time Manuel Bergler 
wrote:
> > That also means this problem will solve itself in about 6 months, when
> > Debian testing becomes the new stable. So if Alexandru can hold off for
> > just a while longer.
> 
> Which assumes every IT department will immediately update to the new stable
> Debian, which I highly doubt. And if we don't assume that, then how long
> should one wait? Until current Debian stable it is EOL?

No, they won't. but that removes one argument in favour of supporting because 
"now that it's oldstable, we don't need to support it for the next release".

> That is debatable. I fixed problems either in the build system itself or the
> generated CMake config files (or sometimes the absense of them) I
> encountered
> as a user of at least a dozen projects using features requiring CMake 3.24
> or
> later. But I never upstreamed those because these projects are supporting
> CMake as old as version  3.5 or sometimes even 2.8.11. And I definitely
> won't
> spend the time to figure out how to solve the same issues in these ancient
> CMake versions just so I can upstream them when a simple solution is
> available in a more recent version of CMake. So essentially the old CMake
> verison is a barrier of entry, too.

I agree and I made that case for C++20 too. This is a balancing act and a 
subjective call.

I'm just saying that CMake 3.26 has just too many negatives in its camp. So if 
Alexandru can hold off for one more release, those negatives go away.

On the other hand, if he says "Sune is the only developer who would be affected 
and only for 6 months, isn't contributing anyway, and this change makes me far 
more productive", I will support him.

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