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  1. Qt
  2. QTBUG-90395

FTBFS: qendian.h missing <limits> include

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Details

    • Bug
    • Status: Closed
    • P1: Critical
    • Resolution: Done
    • 5.15.2
    • 5.15.9, 6.0.1, 6.1.0 Alpha
    • Core: Other
    • None
    • Fedora Rawhide
    • All
    • 9c56d4da2ff631a8c1c30475bd792f6c86bda53c (qt/qtbase/dev) b2af6332ea37e45ab230a7a5d2d278f86d961b83 (qt/qtbase/6.0) 0afad46bb71b106780dd641de768a81d9f6c6a51 (qt/tqtc-qtbase/tqtc/lts-5.15)

    Description

      qendian.h uses std::numeric_limits but does not #include <limits>. As a result, any QT application using QtEndian fails to build with gcc11 (e.g. Fedora Rawhide) with a ton of errors like:

      In file included from /usr/include/qt5/QtCore/qendian.h:44,
      from /usr/include/qt5/QtCore/QtEndian:1,
      from yet_another_qt_bug.cpp:2:
      /usr/include/qt5/QtCore/qfloat16.h:300:7: error: 'numeric_limits' is not a class template
      300 | class numeric_limits<QT_PREPEND_NAMESPACE(qfloat16)> : public numeric_limits<float>
      

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              thiago Thiago Macieira
              tumic Martin Tůma
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                Created:
                Updated:
                Resolved:

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