[Development] Urgent: Qt 5.9.3 binaries built with too NEW Linux distribution

[Jani Heikkinen]

> -----Original Message-----
> From: Development [mailto:development-bounces+jani.heikkinen=qt.io at qt-
> project.org] On Behalf Of Konstantin Tokarev
> Sent: torstai 30. marraskuuta 2017 20.49
> To: Thiago Macieira <thiago.macieira at intel.com>; development at qt-
> project.org
> Subject: Re: [Development] Urgent: Qt 5.9.3 binaries built with too NEW Linux
> distribution
> 
> 
> 
> 30.11.2017, 20:47, "Thiago Macieira" <thiago.macieira at intel.com>:
> > See https://bugreports.qt.io/browse/QTBUG-64820 and
> > http://lists.qt-project.org/pipermail/interest/2017-November/028766.ht
> > ml
> >
> > The Qt 5.9.3 binaries were compiled by GCC 6, which is too new for the
> > latest Ubuntu LTS (16.04). I urgently recommend:
> >
> >  1) find some older distro (possibly Ubuntu 16.04 LTS) to compile the
> > 5.10 and further 5.9 binaries with.

We will start using devtoolset-4 again, but in RHEL 7.4. It is easiest and safest change now & should be doable within 5.10.0 schedule. Work is already ongoing.
> >
> >  2) recompile the 5.9.3 binaries and post them. No changes to the
> > source code, just rebuild.

I understand that but still I think we shouldn't do this. Qt 5.9.4 is coming on January and I hope we can wait to fix this there. We are that hurry atm and even this is quite simple task it still takes quite much effort from us. One basic idea with this new release model is just this; if we found some regression it will be fixed quite soon with next patch release. So that's why I hope we can just add this in Qt 5.9.3 known issue & fix this in Qt 5.9.4 instead.

br,
Jani


> 
> It seems that when RHEL was updated from 7.2 to 7.4 [1], devtoolset-6 was
> installed instead of devtoolset-4 [2]. As we use artifacts from RHEL7
> configuration as official binaries, they started to require GCC 6
> 
> [1] https://codereview.qt-project.org/#/c/204675/38
> 
> [2] One of patches integrated before that provisioning change:
> 
> https://testresults.qt.io/coin/api/results/qt/qtbase/1e813c55a1e3d07549cfe2d
> d6fe3a927c3677c19/LinuxRHEL_7_2x86_64LinuxRHEL_7_2x86_64GCCqtci-
> linux-RHEL-7.2-x86_64-
> e1aea8Release_NoUseGoldLinker/2a48a3b7dcb9652b1532a3ad14de7580b5b9b
> 1ee/build_1508179165/log.txt.gz
> 
> >
> > --
> > Thiago Macieira - thiago.macieira (AT) intel.com
> >   Software Architect - Intel Open Source Technology Center
> >
> > _______________________________________________
> > Development mailing list
> > Development at qt-project.org
> > http://lists.qt-project.org/mailman/listinfo/development
> 
> --
> Regards,
> Konstantin
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