ubuntu-phone team mailing list archive

[Steve Langasek <steve.langasek@xxxxxxxxxxxxx>]

Hi all,

As Matthias posted about on ubuntu-devel last week[1], we are facing a
transition with the update to gcc 5 in wily.  Many C++ libraries will need
rebuilds for an ABI transition due to changes in the C++11 support in gcc 5.

We have a silo in progress for this, so that this transition can be staged
in a way that's minimally disruptive to the phone builds in wily, but we
need the phone team's help this transition complete in a timely fashion. 
There are a number of bug reports filed a while ago for packages that have
build-dependencies on g++-4.9, and need to be updated.  The bugs are here:

  https://bugs.launchpad.net/ubuntu/+bugs?field.tag=lsd-cxx11

the full list of affected packages is:

  dbus-cpp
  indicator-datetime
  indicator-display
  indicator-location
  indicator-network
  indicator-transfer
  location-service
  media-hub
  mediascanner2
  mir
  net-cpp
  platform-api
  process-cpp
  qtmir
  qtmir-gles
  trust-store
  unity-api
  unity-scope-mediascanner
  unity-scopes-api
  unity-system-compositor
  unity8

The bugs are now marked critical, and there's good progress on a number of
them with merge proposals raised, but we need these to be fixed as soon as
possible; because once fixed, we will need to see which of these packages
fail to build with gcc 5.  There are already a number of packages failing to
build, which will need to be fixed up as shown in the silo ppa:

  https://launchpad.net/~ci-train-ppa-service/+archive/ubuntu/landing-016/+packages

And once the above packages have been adjusted not to use g++-4.9, we may
see a few more build failures.

We'll prepare a list of all failing packages shortly to discuss with the
responsible teams, but in the meantime if you want to get started on fixing
the build failures shown there, there's no time like the present!

Thanks,
-- 
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@xxxxxxxxxx                                     vorlon@xxxxxxxxxx

[1] https://lists.ubuntu.com/archives/ubuntu-devel/2015-July/038809.html

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