Qt 6.8.5  fails to build on VxWorks 24.03, while it builds on VxWorks 25.03.

The compiler difference is clang 17.0.6.3 vs 17.0.6.1

In file included from /home/karim/VxWorks/qtbuild/target_684devdiscovery/qtbase/include/QtCore/qdatastream.h:1:
/home/karim/src/qt68vx/tqtc-qt5/qtbase/src/corelib/serialization/qdatastream.h:296:19: error: implicit conversion loses integer precision: 'qint64' (aka 'long long') to 'qsizetype' (aka 'int') [-Werror,-Wshorten-64-to-32]
  296 |     qsizetype n = size;
      |               ~   ^~~~
/home/karim/src/qt68vx/tqtc-qt5/qtbase/src/corelib/serialization/qdatastream.h:322:19: error: implicit conversion loses integer precision: 'qint64' (aka 'long long') to 'qsizetype' (aka 'int') [-Werror,-Wshorten-64-to-32]
  322 |     qsizetype n = size;
      |               ~   ^~~~
/home/karim/src/qt68vx/tqtc-qt5/qtbase/src/corelib/serialization/qdatastream.h:347:19: error: implicit conversion loses integer precision: 'qint64' (aka 'long long') to 'qsizetype' (aka 'int') [-Werror,-Wshorten-64-to-32]
  347 |     qsizetype n = size;
      |               ~   ^~~~
In file included from /home/karim/VxWorks/qtbuild/target_684devdiscovery/qtbase/src/plugins/generic/evdevmouse/QEvdevMousePlugin_init.cpp:1:
In file included from /home/karim/VxWorks/qtbuild/target_684devdiscovery/qtbase/include/QtCore/QtPlugin:1:
In file included from /home/karim/VxWorks/qtbuild/target_684devdiscovery/qtbase/include/QtCore/qplugin.h:1:
In file included from /home/karim/src/qt68vx/tqtc-qt5/qtbase/src/corelib/plugin/qplugin.h:14:
In file included from /home/karim/VxWorks/qtbuild/target_684devdiscovery/qtbase/include/QtCore/qjsonobject.h:1:
/home/karim/src/qt68vx/tqtc-qt5/qtbase/src/corelib/serialization/qjsonobject.h:130:67: error: implicit conversion loses integer precision: 'quint64' (aka 'unsigned long long') to 'qsizetype' (aka 'int') [-Werror,-Wshorten-64-to-32]
  130 |         qsizetype operator-(iterator j) const { return item.index - j.item.index; }
      |                                                 ~~~~~~ ~~~~~~~~~~_^~~~~~~~~~~~~
/home/karim/src/qt68vx/tqtc-qt5/qtbase/src/corelib/serialization/qjsonobject.h:242:73: error: implicit conversion loses integer precision: 'quint64' (aka 'unsigned long long') to 'qsizetype' (aka 'int') [-Werror,-Wshorten-64-to-32]
  242 |         qsizetype operator-(const_iterator j) const { return item.index - j.item.index; }
      |                                                       ~~~~~~ ~~~~~~~~~~_^~~~~~~~~~~~~
5 errors generated.