dx-packages team mailing list archive

[Steve Langasek <steve.langasek@xxxxxxxxxxxxx>]

On Fri, Jun 13, 2014 at 02:26:28PM -0000, Matthias Klose wrote:

>  - Don't use versioned build dependencies for g++-4.x at all (preferred), or use the
>    same version for all packages within a project.

If the ABI will change with each new upstream version of g++, and the
library soname / package name should be changed at the same time, then these
packages *should* have build-dependencies on a specific version of g++, to
avoid accidental ABI incompatibilities.

> Packages in main affected are:
>   dbus-cpp
>   libcolumbus
>   firefox
>   mir
>   process-cpp
>   libreoffice (only the clang plugin which is not built)
>   qtbase-opensource-src
>   unity

Thanks for researching this!

Not all of the packages in the phone are in main.  Can you do the same
review for the set of packages that are in the ubuntu-touch seed?

-- 
You received this bug notification because you are a member of DX
Packages, which is subscribed to unity in Ubuntu.
Matching subscriptions: dx-packages
https://bugs.launchpad.net/bugs/1329089

Title:
  g++-4.9 binary incompatibilties with libraries built with g++-4.8

Status in “dbus-cpp” package in Ubuntu:
  Confirmed
Status in “firefox” package in Ubuntu:
  New
Status in “gcc-4.9” package in Ubuntu:
  Confirmed
Status in “gcc-defaults” package in Ubuntu:
  Fix Released
Status in “location-service” package in Ubuntu:
  Invalid
Status in “mir” package in Ubuntu:
  New
Status in “process-cpp” package in Ubuntu:
  New
Status in “qtbase-opensource-src” package in Ubuntu:
  New
Status in “unity” package in Ubuntu:
  New

Bug description:
  The location-service 0.0.3+14.10.20140512-0ubuntu1 package in utopic,
  when rebuilt against libdbus-cpp3 3.0.0+14.10.20140604-0ubuntu1 (built
  with gcc-4.8) and with current gcc-defaults (which makes g++-4.9 the
  default), fails the package build in its test suite.

   2/14 Test  #2: acceptance_tests ..................***Failed   30.54 sec
  DBus daemon: unix:abstract=/tmp/dbus-HdW1T5UHNB,guid=188551aa5d797b663dade1425398d71b
  task-0: Started with PID: 13031
  task-0: [==========] Running 2 tests from 1 test case.
  task-0: [----------] Global test environment set-up.
  task-0: [----------] 2 tests from LocationServiceStandalone
  task-0: [ RUN      ] LocationServiceStandalone.SessionsReceiveUpdatesViaDBus

  ** (dbus-test-runner:13025): WARNING **: Timing out at maximum wait of
  30 seconds.

  (dbus-test-runner:13025): libdbustest-CRITICAL **: dbus_test_service_run: assertion 'all_tasks(service, all_tasks_finished_helper)' failed
  task-0: Shutting down
  DBus daemon: Shutdown

  This test suite does *not* fail if either dbus-cpp is rebuilt with
  g++-4.9, or if location-service is built with g++-4.8.

  This implies a binary compatibility problem for C++ libraries in g++
  4.9, which is critical to resolve.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/dbus-cpp/+bug/1329089/+subscriptions