[Development] Qt 6 buildsystem support requirements

Giuseppe D'Angelo giuseppe.dangelo at kdab.com
Sat Jul 21 18:24:23 CEST 2018

Il 21/07/2018 17:42, Jean-Michaƫl Celerier ha scritto:
> Besides... why would it matter that they are implemented in C++ instead 
> of cmake-lang ? If anything, CMake's automoc is in my experience much 
> faster to process the whole repo.

Playing devil's advocate, please bear with me:

Because it makes people worry that cmake-lang is too limited, and if you 
need to do certain things (*), you need to resort to patch the tool itself.

Which opens other sets of problems, such as:

* what are the things that I can do in cmake-lang and the things I can't 

* Does all of this imply having changes landing in CMake itself, or can 
one have some sort of plugin system so that a project can ship the CMake 
C++ plugins to build it?

* If the former, what happens if my users are running a "slightly older" 
CMake that doesn't have my patches in it yet?

* If the latter, does it mean that CMake offers stable C++ APIs? How 
complex is it to learn two sets of APIs (cmake-lang and C++)?

My 2 c,
Giuseppe D'Angelo | giuseppe.dangelo at kdab.com | Senior Software Engineer
KDAB (France) S.A.S., a KDAB Group company
Tel. France +33 (0)4 90 84 08 53, http://www.kdab.com
KDAB - The Qt, C++ and OpenGL Experts

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