[Development] Configure command lines of official Qt releases

[Richard Weickelt]

> I think this was asked on the interest list back in January [1].

I did search on the Qt mailing lists, but even when I type exactly the
subject of the thread you referred to, google doesn't find it. I would
expect "Official builds configuration options site:lists.qt-project.org" to
bring this post up:
https://lists.qt-project.org/pipermail/interest/2019-January/032221.html but
it seems like google hasn't even indexed it.
> The answer is here:
> 
> https://code.qt.io/cgit/qtsdk/qtsdk.git/tree/packaging-tools/bld_config

Great. Thanks.

Richard