GCC 5 now the default in wily (release pocket)

Steve Langasek steve.langasek at ubuntu.com
Fri Aug 14 16:53:09 UTC 2015

Hi Michi,

On Fri, Aug 14, 2015 at 06:36:41PM +1000, Michi Henning wrote:
> Sorry, I don't follow.

> This is on Jenkins. I have no choice as to what packages are used to build
> with there.

> Am I missing something?

Why are these jobs building in jenkins, rather than in a ppa?

Who administers this jenkins, and why is the jenkins not set up to build
against -proposed?

I'm not sure why your jenkins build environment should have a policy that's
different from both the main archive and the CI Train silos.  I think you
probably want to get this fixed.

> On 14 Aug 2015, at 18:20 , Matthias Klose <doko at ubuntu.com> wrote:
> > On 08/14/2015 10:07 AM, Michi Henning wrote:
> >> As of today, none of our CI jobs are building any longer.
> >> 
> >> It looks like gcc 5 is now the default in Jenkins, but the libraries that are installed are still compiled with 4.9.
> >> So, for example, we fail to link against leveldb because leveldb still has the old ABI string symbols in it.
> >> The boost -dev packages also appear to still be at 1.55 with the old ABI. I expect that more things will
> >> will be affected. For example, Qt5, with methods such as QString::fromStdString().

> > this looks like you don't have -proposed enabled. And yes, this is
> > expected.  boost can't be built for the new ABI, it will be removed for
> > the wily release.

This refers specifically to boost 1.55, not "boost".  boost in wily-proposed
is now at version 1.58 and is built for the g++5 ABI.  However, this won't
make its way into wily until the phone stack is ready to migrate (along with
the various other packages that need to be migrated at the same time).

Steve Langasek                   Give me a lever long enough and a Free OS
Debian Developer                   to set it on, and I can move the world.
Ubuntu Developer                                    http://www.debian.org/
slangasek at ubuntu.com                                     vorlon at debian.org
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