[Qt-creator] build qt-creator using qbs

[André Pönitz]

On Sat, Jul 08, 2017 at 11:08:26AM +0200, Jochen Becher wrote:
> Hi,
> 
> After long time I plan to add some new features to the modeling tool.
> Adding new files I wondered if qbs can still be used to build Qt
> Creator. But loading the qtcreator.qbs gives me hundreds of error
> messages (using Qt Creator 4.3.1) - it looks like the qbs files were
> never updated for changes from newer qbs versions.
> 
> Is qtcreator.qbs dead? In that case I would not update the modeling qbs
> files as well.

I am not using the qbs build myself, but my understanding is that
qbs is actively used and .qbs files must be updated when files
are added to the project.

Please note also that there won't be more releases from 4.3 branch
and 4.4 is also already branched. New work should target master.

Andre'