[Development] CMake branch

[Kari Oikarinen]

On 21.3.2019 14.00, Mikhail Svetkin wrote:
> *
> 
> *
> 
> Hi everyone!
> 
> 
> We’ve had an internal discussion about wip/cmake branch.
> 
> 
> We thought maybe it is a good idea to merge wip/cmake into dev branch.
> 
> 
> The advantages are:
> 
>   - It allows our contributors to play with CMake in dev branch
> 
>   - Speed-up the build of QtBase
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>   - Easy to find a lot of bugs in CMake port
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>   - CI could have a nightly build with CMake and generate a report
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>   - We can synchronize CMakeFiles and *.pro files
> 
> 
> The disadvantages are:
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>   - Any changes should be passed by CI
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> 
> Do you have any objections?
> 
> **
> 

Would this have blocking CI or not? The stated disadvantage (which surely
shouldn't be entirely negative) implies that it would be. But the build being
nightly hints that it would not be.

A blocking build would mean that all changes need to leave the CMake build 
working. So everyone would need to take care of both build systems. A more
defined transition point and only one official build system at a time would be
nicer. Or at least trying to minimize the time of having two.

Unless of course we'd already be ready to drop building Qt with qmake, but I
guess that's not where we are yet. Is that expected to happen during 5.x series
at all or only with Qt 6?

-- 
Kari