Qt 5.10 CI Builds

[Ben Cooksley]

Hi all,

I have now completed the setup work for the Qt 5.10 based CI builds.

These are provided using OpenSUSE Tumbleweed as the underlying
distribution, and use the Qt 5.10 packages currently provided by their
KDE team.

As you may have seen from the emails sent by the CI system though,
several modules are not happy at all. Based on the error messages i'm
inclined to suspect these are CMake regressions, not issues with Qt
5.10.

I'm currently waiting on the build of an image using Qt 5.7 which will
confirm/deny this as being the case.

For those wondering, we've got CMake 3.9.5.

Should this in fact be a CMake regression i'll be disabling the whole
CI system, as the maintenance work i've been performing this evening
has necessitated rebuilds of the principal production SUSE Qt 5.9
based image as well (which supports Applications, Plasma and
Extragear)

Cheers,
Ben