[CMake] Retrieve all directories?

[Alexander Neundorf]

Von: "David Cole" <david.cole at kitware.com>

...
> It exploits the fact that a directory will still pass the existence test
> if you append a "/" to its filename, whereas a file will not...
> 
> I won't guarantee that this will always work with all cmakes on all
> platforms, but you may find that it is a useful trick...

I don't know exactly since which version, but current cmake also features IF(IS_DIRECTORY ...)

Bye
Alex

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