RFC: Erroring out if the platform you're building the Framework is not supported

[Christoph Cullmann (cullmann.io)]

On 2022-02-16 16:22, Allen Winter wrote:
> On Wednesday, February 16, 2022 9:42:18 AM EST Albert Astals Cid wrote:
>> Supported == listed in metainfo.yaml
>> 
>> https://invent.kde.org/frameworks/extra-cmake-modules/-/merge_requests/245
>> 
>> What do you think?
>> 
>> I know parsing yaml like that isn't great but it seems to work for 
>> something as simple as what I want there.
>> 
>> I guess it's probably a bit annoying for places like OpenBSD where 
>> having Linux and FreeBSD supported probably means it would also work, 
>> but IMHO they can either just use -DIGNORE_PLATFORM_CHECK=true or work 
>> with us so we get an OpenBSD CI and then we add it to the 
>> metainfo.yaml list.
>> 
> Here's why I asked Albert about this:
> - for a long time kdesu builds fine on Mac
>  - suddenly it doesn't build any longer
>  - I spend time investigating and report a build failure
>  - Developer (in this case Ahmad) spends time looking
>     - responds that the metainfo.yml says kdesu is only for Linux and 
> FreeBSD
>     - Allen says "never mind then"
>  - Today another person notices that kdesu no longer builds for Mac
>    => repeat ad nauseam
> 
> So, to save everyone's time I propose that the CMakeLists.txt notifies
> the user explicitly if project is not supported on current platform.

I like this idea, gives an early indication that you enter uncharted 
waters.

Greetings
Christoph

-- 
Ignorance is bliss...
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