[Interest] What's the configure switch to have xcb working when deploying Qt apps?

[Jonathan Greig]

Jonathan P. Greig
aka redteam316
RIP 6/13/1984 - 2/7/2016


On Sun, Oct 1, 2017 at 12:04 PM, Thiago Macieira <thiago.macieira at intel.com>
wrote:

> On Sunday, 1 October 2017 07:09:18 PDT Nikos Chantziaras wrote:
> > > The plugin is listed, but couldn't be loaded. Run ldd on the plugin and
> > > you'll see what libraries are missing. They need to be installed in the
> > > target system by the user.
> >
> > No, that wasn't it. I mean it was (technically), since ldd showed it
> > depends on the xinerama library which was missing, but on the other hand
> > in wasn't, since on the *build* system, ldd does not show a dep on
> > xinerama. That dep only shows up on the target system. Which is weird.
>
> You've done something wrong. The DT_NEEDED ELF header is added during the
> build. So the dependency was there on the buildsystem too.
>
> The other option is that it's a missing indirect dependency, in which case
> the
> problem existed before your application was deployed to that system.
>
> > https://github.com/qtproject/qtsdk/blob/v5.6.3-packaging/
> packaging-tools/bld
> > _config/configure_linux_opensource
> >
> > Building with those cured the problem.
>
> The trick being -qt-xcb, which uses a bundled version of XCB instead of the
> one from the system.
>
> Note all those -qt-libname flags. You're bundling all of them. That means
> you're accepting responsibility for monitoring them for security issues and
> updating your application if any issue is found. The first three are
> notorious
> for needing that.
>
> --
> Thiago Macieira - thiago.macieira (AT) intel.com
>   Software Architect - Intel Open Source Technology Center
>
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