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  1. Qt
  2. QTBUG-101963

[Reg 5.15 -> 6.x] -platform linux-g++-32 now produces 64-bit libraries

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    • Linux/X11
    • 7616e4aecf (qt/qtbase/dev) 7616e4aecf (qt/tqtc-qtbase/dev)

    Description

      On a x86_64 machine with GCC-multilib and 32-bit dependencies installed, ./configure -platform linux-g++-32 produces:

      • 32-bit libraries for Qt 5.15.6 (correct)
      • 64-bit libraries for Qt 6.1.2 (wrong)

       

      $ file qt-5.15.6/rh/lib/libQt5Widgets.so.5.15.6
qt-5.15.6/rh/lib/libQt5Widgets.so.5.15.6: ELF 32-bit LSB shared object, Intel 80386, version 1 (GNU/Linux), dynamically linked, BuildID[sha1]=7a476704d7f59027907eadba652820277b3871d5, stripped

$ file qt-6.1.2/rh/lib/libQt6Widgets.so.6.1.2
qt-6.1.2/rh/lib/libQt6Widgets.so.6.1.2: ELF 64-bit LSB shared object, x86-64, version 1 (GNU/Linux), dynamically linked, BuildID[sha1]=1309c9c845235cf819d1564415d2150eb437f439, not stripped

       

      Notes

      The linux-g++-32 mkspecs sets the -m32 option, but only in qmake.conf: https://code.qt.io/cgit/qt/qtbase.git/tree/mkspecs/linux-g++-32/qmake.conf?h=6.3.0

      That explains why it works in Qt 5 but not Qt 6, since Qt 6 is no longer built using qmake.

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-102143 Build failure on 32bit archs

          • Not Evaluated - Not yet evaluated/prioritized
          • Closed
          For Gerrit Dashboard: QTBUG-101963
          # Subject Branch Project Status CR V
          406955,10 CMake: Handle detection of linux-g++-32 mkspec dev qt/qtbase Status: MERGED +2 0

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              alexandru.croitor Alexandru Croitor
              skoh-qt Sze Howe Koh
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              Dates

                Created:
                Updated:
                Resolved:

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