[Development] Raising minimum CMake version to 3.16 for Qt6

Kai Köhne Kai.Koehne at qt.io
Fri May 7 09:10:21 CEST 2021

> -----Original Message-----
> I'm not really remembering at the moment. The development hosts were
> already set to GCC9 for 6.0. So maybe GCC8 works, but we're not testing it
> anywhere (and that makes it basically unsupported). 

Well, we're still building things on Windows with gcc 8.1. See e.g.


> agent:2021/05/07 04:24:49 build.go:379: Building for: win32-g++ (x86_64, CPU features: cx16 mmx sse sse2 sse3)
> agent:2021/05/07 04:24:49 build.go:379: Compiler: gcc 8.1.0

So it might have regressed in Unix specific parts, but overall we still support gcc 8.1.



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