If CMake version is 3.19 or greater, use cmake_language(DEFER CALL)
for Qt internal scope finalizers, instead of the homegrown
implementation.
Apart from not depending on the hacky homegrown solution, it
significantly improves the readability of --trace-redirect logs.
Pick-to: 6.0
Task-number: QTBUG-77377
Change-Id: I5ce374bb313865662c536826e86052bc762438b9
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
QtBuild.cmake is huge. Split it.
Move module, plugin, tools, executables and test related functions out
of QtBuild.cmake into separate files.
Do the same for many other things too.
An additional requirement is that all the new Helpers files only
define functions and macros.
No global variable definitions are allowed, nor execution of commands
with side effects.
Some notes:
qt_install_qml_files is removed because it's dead code.
Some functions still need to be figured out, because they are
interspersed and depend on various global state assignments.
Task-number: QTBUG-86035
Change-Id: I21d79ff02eef923c202eb1000422888727cb0e2c
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
