[SailfishDevel] qt upgrade

Leszek Lesner leszek.lesner at web.de
Sat Feb 9 19:22:44 UTC 2019


Am Samstag, 9. Februar 2019, 20:11:18 CET schrieb Dylan Van Assche via Devel:
> Hi,
> I would really like this! Getting Qt 5.12 on SFOS would be great :) This way
> we can keep up with the LTS releases of Qt, this would speed up the
> development of SFOS apps.

I am against it.
It would be the opposite actually. Instead of speeding up the development it
would be like stick you throw inbetween your legs.
Jolla is barely keeping the Qt Versions up to date for now. Its not going to
help if we have 2 versions that need to be supported.
It will create more chaos when some apps will be based on Qt 5.9 and others on
Qt 5.12
Also incompatibilities will appear all over the place. Hacks would be needed.
In general it is not a good idea to split the dev community in a Qt 5.9 and Qt
5.12 section.
Supporting multiple Qt Versions on one platform is a no go. It will break your

Instead I would suggest putting more and more work in quality control and
having a team that tries to do the best they can for a smooth transition to Qt

Leszek Lesner

> Kind regards,
> Dylan Van Assche
> Sent from ProtonMail mobile
> -------- Original Message --------
> On 9 Feb 2019 18:44, rinigus wrote:
> > Hi,
> >
> > sounds like there are porting and licensing issues on the way of getting
> > qt 5.9 for SFOS (see logs from the last #mer-meeting). Its all
> > understandable, but it would be great to get a way forward. Not sure
> > whether it has been considered by others and I wonder whether we can make
> > a separate Qt 5.12 packages for /opt/qt512?
> >
> > From a quick test, it is possible to run non-silica applications as well
> > (tested with qmlscene and QML with plain Window). In that test, even
> > keyboard worked as expected. Look was non-native, but let it be for now.
> >
> > So, I wonder, whether its possible to get Qt 5.12 compiled with /opt/qt512
> > prefix and then use it for development using the latest libs (new web
> > browser?) and collaborate with other mobile Linux'es out there. As far as
> > I remember, Wayland was rather old and, maybe, it will preclude Qt 5.12
> > compilation. @mal, though, had a newer version around and it may serve a
> > purpose for such project. Is there anything else that should be
> > considered?
> >
> > Cheers,
> >
> > Rinigus
> >
> > PS: Please consider it as request-for-comment and not as any kind of
> > statement nor call-for-action :)

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