Better to have something, than nothing at all.
Mention it in the cmake readme.
Task-number: QTBUG-120225
Change-Id: Ieffeeaac714b89d5d8b5a8b0c51abf3fe8e0a6c6
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>