Allows
- projects linking to KService to hide deprecated API up to a given version or silence deprecation warnings before a given version, using
- -DKSERVICE_DISABLE_DEPRECATED_BEFORE_AND_AT
- -DKSERVICE_DEPRECATED_WARNINGS_SINCE
- -DKSERVICE_NO_DEPRECATED_WARNINGS
- -DKSERVICE_NO_DEPRECATED or
- -DKF_DISABLE_DEPRECATED_BEFORE_AND_AT
- -DKF_DEPRECATED_WARNINGS_SINCE
- -DKF_NO_DEPRECATED_WARNINGS
- -DKF_NO_DEPRECATED
- to build KService optionally with deprecated API excluded from the build, using "EXCLUDE_DEPRECATED_BEFORE_AND_AT" cmake argument.