[Qt-creator] Proposal: Increase requirements for compiling Qt Creator to GCC>=5.3

[Eike Ziller]

https://codereview.qt-project.org/234686

> On Jul 17, 2018, at 09:59, Eike Ziller <Eike.Ziller at qt.io> wrote:
> 
> 1 1/2 years ago we started requiring GCC 4.9 or later for compiling Qt Creator. 
> 
> This compiler was first released over 4 years ago and even in its newest incarnation is almost 2 years old, so it is time to move on.
> As far as my research (e.g. https://distrowatch.com) tells me, all major Linux distributions provide at least GCC 5.3 in their stable/LTS version (CentOS/RHEL only through the devtoolset package, but they didn’t provide 4.9 directly either).
> 
> So I propose requiring GCC 5.3, starting with Qt Creator 4.8 (which currently is branch ‘master').
> 
> Br, Eike
> 
> -- 
> Eike Ziller
> Principal Software Engineer
> 
> The Qt Company GmbH
> Rudower Chaussee 13
> D-12489 Berlin
> eike.ziller at qt.io
> http://qt.io
> Geschäftsführer: Mika Pälsi,
> Juha Varelius, Mika Harjuaho
> Sitz der Gesellschaft: Berlin, Registergericht: Amtsgericht Charlottenburg, HRB 144331 B
> 
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-- 
Eike Ziller
Principal Software Engineer

The Qt Company GmbH
Rudower Chaussee 13
D-12489 Berlin
eike.ziller at qt.io
http://qt.io
Geschäftsführer: Mika Pälsi,
Juha Varelius, Mika Harjuaho
Sitz der Gesellschaft: Berlin, Registergericht: Amtsgericht Charlottenburg, HRB 144331 B