Comment # 19 on bug 1112920 from Fabian Vogt

(In reply to Michel Normand from comment #18)
> (In reply to Fabian Vogt from comment #16)
> > Upstream requested a test with Qt 5.12.
> > 
> > Can you try with binaries from KDE:Qt:5.12 built against ppc64?
> 
> Does it mean I have to build all 68 packages of this project (1) for ppc64
> in OBS (in my own branch) ?

Only libqt5-qtdeclarative and it's libqt5-qt* buildtime dependencies.

The install libqt5-qtdeclarative from there and call "qmlplugindump-qt5
QtQuick.Controls 1".

> and then try to build also in OBS
> KDE:Frameworks5 the plasma5-desktop using previous created repo ?

If the above test works, that's the next step for confirmation.
It might require to rebuild some other packages in the plasma5-desktop deptree
as well.

> (1) https://build.opensuse.org/project/show/KDE:Qt:5.12
> (2) https://build.opensuse.org/package/show/KDE:Frameworks5/plasma5-desktop