touch-packages team mailing list archive

[Steve Langasek <steve.langasek@xxxxxxxxxxxxx>]

On Mon, Jul 14, 2014 at 08:22:04AM -0000, Daniel van Vugt wrote:
> Why don't we just keep utopic on g++-4.8 until 4.9 is no longer
> experimental?

4.9 is not experimental.  *C++11 support in gcc upstream* is
experimental.

There is a single rebuild required here for the move from 4.8 to 4.9, no
further rebuilds will be required for ABI changes within gcc 4.9.

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https://bugs.launchpad.net/bugs/1329089

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

Status in Mir:
  Fix Committed
Status in “dbus-cpp” package in Ubuntu:
  In Progress
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:
  Triaged
Status in “process-cpp” package in Ubuntu:
  Invalid
Status in “qtbase-opensource-src” package in Ubuntu:
  New
Status in “unity” package in Ubuntu:
  New
Status in “unity-scope-click” package in Ubuntu:
  New
Status in “unity-scopes-api” package in Ubuntu:
  New
Status in “unity-scopes-shell” package in Ubuntu:
  New
Status in Debian GNU/Linux:
  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.

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