Allows
- projects linking to KWindowSystem to hide deprecated API up to a given version or silence deprecation warnings after a given version, using
- -DKWINDOWSYSTEM_DISABLE_DEPRECATED_BEFORE_AND_AT
- -DKWINDOWSYSTEM_NO_DEPRECATED
- -DKWINDOWSYSTEM_DEPRECATED_WARNINGS_SINCE
- -DKWINDOWSYSTEM_NO_DEPRECATED_WARNINGS
or - -DKF_DISABLE_DEPRECATED_BEFORE_AND_AT
- -DKF_NO_DEPRECATED
- -DKF_DEPRECATED_WARNINGS_SINCE
- -DKF_NO_DEPRECATED_WARNINGS
- to build KWindowSystem optionally with deprecated API excluded from the build, using "EXCLUDE_DEPRECATED_BEFORE_AND_AT" cmake argument.
Setting KWINDOWSYSTEM_NO_WIDGETS ensures EXCLUDE_DEPRECATED_BEFORE_AND_AT
is at least at the version where QWidgets API was deprecated.