As a user of a custom Qt build, I want do define my own deprecated-API cutoff version

We're using a custom Qt build (configure -list-features) to minimize the footprint of the Qt library on our embedded systems. That already helps a lot. However, we're also always working with the latest stable Qt version, and disable deprecated API. However, we don't seem to be able to reap the benefit of that constant porting work, because there doesn't seem to be a way to configure a Qt build with a custom QT_DISABLE_DEPRECATED_BEFORE . Seeing as you now have added that QT_REMOVED_SINCE/removed_api.cpp, we'd really like to be able to say

confgure -disable-deprecated-before=0x060300

in order to not have to carry all that ABI retained for BC. For us, that's just useless ballast.