[Development] Removing libudev dependency from binary packages?

[Agocs Laszlo]

Hello,

Not having libudev results in not having hotplugging and proper device discovery for the evdev inputs plugins (and platforms that have the input stuff built-in, like eglfs).

This does not mean those plugins will not build or will not work since there is a (limited) fallback option that resorts to poking the /dev/input/event devices directly. Disabling libudev for desktop builds is acceptable since the evdev input support is mostly interesting to embedded targets and those will build from source.

Best regards,
Laszlo

________________________________________
From: development-bounces+laszlo.agocs=digia.com at qt-project.org [development-bounces+laszlo.agocs=digia.com at qt-project.org] on behalf of Koehne Kai [Kai.Koehne at digia.com]
Sent: Monday, October 21, 2013 4:29 PM
To: development at qt-project.org
Subject: [Development] Removing libudev dependency from binary packages?

Hi there,

In the latest Linux binary packages for 5.2 libQt5Webkit depends on libudev.so.0, which isn't installed (or at least not in this version) on a lot of distributions:

https://bugreports.qt-project.org/browse/QTBUG-34176

The easiest fix would be to configure Qt with -no-libudev / remove libudev headers etc from the build machines. Anyhow, it seems also other Qt modules use it if it's available, namely Qt5SerialPort, libqgtk2, libqevdevtableplugin, libqevdevtouchplugin.so, libqevdevkeyboardplugin.so, libqevdevmouseplugin.so, libqevdevtabletplugin.so .

Can anyone in the knowing clarify how important libudev is for them? What will break if we don't link against libudev anywhere (like we did with 5.1.1)?

Regards

Kai

--
   Kai Köhne, Senior Software Engineer - Digia, Qt
   Digia Germany GmbH, Rudower Chaussee 13, D-12489 Berlin
   Geschäftsführer: Mika Pälsi, Juha Varelius, Anja Wasenius
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