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  1. Qt
  2. QTBUG-19697

Compile error when using virtual QObject inheritance

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Details

    • Bug
    • Resolution: Duplicate
    • Not Evaluated
    • None
    • 4.8.0
    • Build tools: moc
    • None
    • gcc (SUSE Linux) 4.6.0 20110523 [gcc-4_6-branch revision 174058]
      openSUSE 11.4, 32 bit

    Description

      With Qt from 4.8 branch at 408a522f several KDE modules (kdeaccessibility, kdenetwork, kdesdk) fail to compile because of a change in moc. The error message is:

      moc_test.cpp:47:50: error: cannot convert from base 'QObject' to derived type 'MyObject' via virtual base 'QObject'

      Attached is a minimal testcase that reproduces the compilation error.

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          is replaced by

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-19717 moc generated code fail to compile if QObject is inherited virtually

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; Flaky tests; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
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              goffart Olivier Goffart (closed Nokia identity) (Inactive)
              cfeck Christoph Feck
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              Dates

                Created:
                Updated:
                Resolved:

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