CMake: Fix deferred qt_add_translations calls...HEADdev

...if find_package(Qt6Core) is missing at the project directory level.

Consider a project with a subdir. In the subdir, we have
    find_package(Qt6 COMPONENTS Widgets LinguistTools ...)
    ...
    qt_add_translations(mytarget TS_FILES mytarget_de.ts ...)
such that the actual qt_add_translations call is deferred.

In the top-level CMakeLists.txt we have no find_package call for Qt6.

Then the deferred call will fail, because we defer to the project root,
and there we're missing variables that have been pulled in by the
find_package(Qt6 ...) call in the subdir.

Fix this by adding a find_package(Qt6 ...) call when we're deferring
qt_add_translations. The find_package call will do (almost) nothing if
the packages have already been loaded.

Pick-to: 6.7 6.8
Fixes: QTBUG-126167
Change-Id: I2083ebecfd64e67649906526d2f99bb202b03cb8
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>

0 files changed, 0 insertions, 0 deletions