[Interest] Unable to build Qt 5.12 on Ubuntu 14.04

Calogero Mauceri mauceri at actgate.com
Wed Mar 20 12:24:57 CET 2019


On Tue, Mar 19, 2019 at 7:54 PM Thiago Macieira <thiago.macieira at intel.com>
wrote:

> On Tuesday, 19 March 2019 09:40:42 PDT Calogero Mauceri wrote:
> > Hi all,
> >
> > I'm trying to build Qt 5.12.2 on Ubuntu 14.04.
> > I get the following error just after I launch the configure
> >
> > ERROR: Feature 'xcb' was enabled, but the pre-condition 'features.thread
> &&
> > features.xkbcommon && libs.xcb' failed.
> >
> > here is the configure line I'm using
> >
> > ./configure -qt-zlib -fontconfig -qt-xcb
> >
> > I have libxcb1 and libxcb1-dev 1.10-2ubuntu1 installed on the system.
> > I am building on a 32 bit system, but I get the same error on a 64 bit
> > machine.
> > Am I missing some other dependencies? Do you know how to check?
>
> Yes, the error message told you which one: "features.xkbcommon &&
> libs.xcb".
> Since you have installed the XCB libraries, you should check for xkbcommon
> ones.
>
> If you have libxcb1-dev installed, why are you passing -qt-xcb? And, for
> that
> matter, why -qt-zlib? Just use your distro's packages for those.
>

Thanks Thiago for your reply,

xkbcommon is installed on the machine, version 0.4.1, but we still get that
issue.
We are building qt with the -qt-xcb option to limit the number of system
dependencies for our application.

-- 
Calogero Mauceri
Software Engineer

Applied Coherent Technology Corporation (ACT)
www.actgate.com
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