[Interest] [#ID:INC-1251018#] Installation issue.

Dr.-Ing. Christoph Cullmann cullmann at absint.com
Tue Mar 12 10:10:08 CET 2019


Hi,

> On Monday, 11 March 2019 18:23:37 PDT Giuseppe D'Angelo via Interest wrote:
>> Il 12/03/19 02:11, Allan Sandfeld Jensen ha scritto:
>> >> The problem is not the GCC version. It's the set of libraries provided by
>> >> the old distribution.
>> > 
>> > And I guess he could still build his own packages. The libraries would
>> > just
>> > use bundled qt copies if too old. Only the prebuilt packages have higher
>> > requirements, right?
>> 
>> No; e.g. xkbcommon is no longer shipped with Qt and the one in RHEL6.6
>> is too old (the solution is building your own, I guess).
> 
> And as others have found out, that is getting very difficult. The current Git
> version of xkbcommon can only be built with Meson and you can't install Meson
> on RHEL 6.6 (its Python3 is too old).
> 
> You can build the current xkbcommon release. And past releases that are
> greater than the minimum that Qt requires, of course.
> 
> But the point remains: at some point, it becomes difficult to actually build
> those dependencies because the distribution is old. Also note Qt 6 will not
> ship bundled libraries. There will be a way to install them from sources, but
> then we go back to the problem of actually building them.

I think this will be a hard issue for a lot of people that need to support
industrial customers.

AbsInt will migrate to Red Hat/CentOS 7 for our builts to circumvent that, but I think
a lot of other people don't have this possibility.

For the xkbcommon thing: What me most disturbed is that it was removed during
a patch release. 5.12 did compile fine on CentOS 6.x, 5.12 did have it removed
and failed. That was kind of unexpected.

Greetings
Christoph

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----------------------------- Dr.-Ing. Christoph Cullmann ---------
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