[Development] xcb-icccm dependency in Qt 5/libxcb

Koehne Kai Kai.Koehne at digia.com
Mon Oct 22 16:22:51 CEST 2012

> -----Original Message-----
> From: Giuseppe D'Angelo [mailto:dangelog at gmail.com]
> Sent: Monday, October 22, 2012 2:14 PM
> To: Koehne Kai
> Cc: development at qt-project.org
> Subject: Re: [Development] xcb-icccm dependency in Qt 5/libxcb
> On 22 October 2012 13:53, Koehne Kai <Kai.Koehne at digia.com> wrote:
> > But it turns out the real dealbreaker when trying to have a somewhat
> > portable Qt binary on Linux is libxcb-icccu: E.g. I can't run a Qt
> > compiled on Ubuntu 11.10 on my OpenSUSE 12.1 because of this
> > dependency
> What's exactly the issue you're facing? That library doesn't exist under
> SUSE? There's an ABI break between the Ubuntu version and the SUSE one?

Hi Giuseppe,

The wall I'm hitting is that platforms/libxcb.so compiled on Ubuntu 10.11 has a dependency to libxcb-icccm.so.4, while my OpenSUSE 12.1 only features libxcb-icccm.so.1 . The other dependency missing is libicu(*).so.49 , but I understood we'll ship our own ICU for prebuilt packages on Linux, and anyway compiling your own ICU is a piece of cake. 

I ran the latest lsb app checker (http://www.linuxfoundation.org/collaborate/workgroups/lsb/download) on the package, and it complains about 6 libraries 'not common' in distributions:


The worrying ones are libudev.so.0 (though this one is available for my OpenSUSE), and the libxcb ones. I think everyone who wants to distribute binary Qt libs on Linux will have to deal with these somehow ...



> Cheers,
> --
> Giuseppe D'Angelo

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