Are there any procedures involved in updating the system from qt4 to qt5 in Fedora 19; or
will yum update do it automatically (so far, nothing happened, but maybe the mirrors are not yet up-to-date)?
2013/10/20 Peter Gueckel pgueckel@gmail.com:
Are there any procedures involved in updating the system from qt4 to qt5 in Fedora 19; or
will yum update do it automatically (so far, nothing happened, but maybe the mirrors are not yet up-to-date)? From a user's point of view, Qt 5 is not a drop-in replacement for Qt
4, so yum will not do any automatic replacement. You also can not use Qt 5 with an application that was built to be used with Qt 4, so there is no manual procedure to do so either. As a user, you do not really need to take any action about the situation at all.
If you install an application that happens to need Qt 5, yum will automatically also pull you copy of Qt 5 that can safely be used alongside Qt 4. I am not sure if there are applications that need Qt 5 in Fedora yet, but I am fairly sure that the number of those will increase as time goes on.
-Joonas
On 10/20/2013 10:52 AM, Peter Gueckel wrote:
Joonas Sarajärvi wrote:
From a user's point of view, Qt 5 is not a drop-in replacement for Qt 4
That's too bad :-(
It's not bad, but a good thing imo. Qt4/Qt5 is much like Qt3/Qt4 and gtk2/gtk3, they are different parallel-installable toolkits.
The good news is that api-wise Qt5 is relatively close to Qt4, so projects that want to use it generally dont have to change their code much (provided they weren't using any compat or deprecated interfaces).
-- Rex
Rex Dieter wrote:
It's not bad, but a good thing imo.
The good news is that api-wise Qt5 is relatively close to Qt4, so projects that want to use it generally dont have to change their code much
Thanks, Rex :-) I had anticipated that KDE would, after a reboot, be running on Qt5 and that I would see some marvelous new things ;-)
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Joonas Sarajärvi -
Kevin Kofler -
Peter G. -
Rex Dieter