Details
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Bug
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Resolution: Unresolved
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P4: Low
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None
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6.2.0, 6.2.1
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None
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Windows
Description
After upgrading to 6.2.0 I've noticed linker warnings when linking my applications against a static build of Qt:
[127/127] Linking CXX executable tray/syncthingtray-qt6-static.exe /usr/i686-w64-mingw32/static/lib/libQt6Widgets.a(qfiledialog.cpp.obj): duplicate section `.data$_ZZN9QMetaType23registerMutableViewImplI5QListI4QUrlE9QIterableI13QMetaSequenceEEEbSt8functionIFbPvS8_EES_S_E10unregister[__ZZN9QMetaType23registerMutableViewImplI5QListI4QUrlE9QIterableI13QMetaSequenceEEEbSt8functionIFb PvS8_EES_S_E10unregister]' has different size /usr/i686-w64-mingw32/static/lib/libQt6Widgets.a(qfiledialog.cpp.obj): duplicate section `.data$_ZZN9QMetaType21registerConverterImplI5QListI4QUrlE9QIterableI13QMetaSequenceEEEbSt8functionIFbPKvPvEES_S_E10unregister[__ZZN9QMetaType21registerConverterImplI5QListI4QUrlE9QIterableI13QMetaSequenceEEEbSt8functionIFbPKvP vEES_S_E10unregister]' has different size /usr/i686-w64-mingw32/static/lib/libQt6Widgets.a(qabstractitemview.cpp.obj): duplicate section `.data$_ZZN9QMetaType23registerMutableViewImplI5QListIiE9QIterableI13QMetaSequenceEEEbSt8functionIFbPvS7_EES_S_E10unregister[__ZZN9QMetaType23registerMutableViewImplI5QListIiE9QIterableI13QMetaSequenceEEEbSt8functionIFbPv S7_EES_S_E10unregister]' has different size /usr/i686-w64-mingw32/static/lib/libQt6Widgets.a(qabstractitemview.cpp.obj): duplicate section `.data$_ZZN9QMetaType21registerConverterImplI5QListIiE9QIterableI13QMetaSequenceEEEbSt8functionIFbPKvPvEES_S_E10unregister[__ZZN9QMetaType21registerConverterImplI5QListIiE9QIterableI13QMetaSequenceEEEbSt8functionIFbPKvPvE ES_S_E10unregister]' has different size /usr/i686-w64-mingw32/static/lib/libQt6Core.a(qabstractitemmodel.cpp.obj): duplicate section `.data$_ZZN9QMetaType23registerMutableViewImplI5QListI21QPersistentModelIndexE9QIterableI13QMetaSequenceEEEbSt8functionIFbPvS8_EES_S_E10unregister[__ZZN9QMetaType23registerMutableViewImplI5QListI21QPersistentModelIndexE9QIt erableI13QMetaSequenceEEEbSt8functionIFbPvS8_EES_S_E10unregister]' has different size /usr/i686-w64-mingw32/static/lib/libQt6Core.a(qabstractitemmodel.cpp.obj): duplicate section `.data$_ZZN9QMetaType21registerConverterImplI5QListI21QPersistentModelIndexE9QIterableI13QMetaSequenceEEEbSt8functionIFbPKvPvEES_S_E10unregister[__ZZN9QMetaType21registerConverterImplI5QListI21QPersistentModelIndexE9QIterab leI13QMetaSequenceEEEbSt8functionIFbPKvPvEES_S_E10unregister]' has different size /usr/i686-w64-mingw32/static/lib/libQt6Core.a(qabstractitemmodel.cpp.obj): duplicate section `.data$_ZZN9QMetaType23registerMutableViewImplI5QListI11QModelIndexE9QIterableI13QMetaSequenceEEEbSt8functionIFbPvS8_EES_S_E10unregister[__ZZN9QMetaType23registerMutableViewImplI5QListI11QModelIndexE9QIterableI13QMetaSequen ceEEEbSt8functionIFbPvS8_EES_S_E10unregister]' has different size /usr/i686-w64-mingw32/static/lib/libQt6Core.a(qabstractitemmodel.cpp.obj): duplicate section `.data$_ZZN9QMetaType21registerConverterImplI5QListI11QModelIndexE9QIterableI13QMetaSequenceEEEbSt8functionIFbPKvPvEES_S_E10unregister[__ZZN9QMetaType21registerConverterImplI5QListI11QModelIndexE9QIterableI13QMetaSequenceEE EbSt8functionIFbPKvPvEES_S_E10unregister]' has different size /usr/i686-w64-mingw32/static/lib/libQt6Core.a(qitemselectionmodel.cpp.obj): duplicate section `.data$_ZZN9QMetaType23registerMutableViewImplI5QListI21QPersistentModelIndexE9QIterableI13QMetaSequenceEEEbSt8functionIFbPvS8_EES_S_E10unregister[__ZZN9QMetaType23registerMutableViewImplI5QListI21QPersistentModelIndexE9QI terableI13QMetaSequenceEEEbSt8functionIFbPvS8_EES_S_E10unregister]' has different size /usr/i686-w64-mingw32/static/lib/libQt6Core.a(qitemselectionmodel.cpp.obj): duplicate section `.data$_ZZN9QMetaType21registerConverterImplI5QListI21QPersistentModelIndexE9QIterableI13QMetaSequenceEEEbSt8functionIFbPKvPvEES_S_E10unregister[__ZZN9QMetaType21registerConverterImplI5QListI21QPersistentModelIndexE9QItera bleI13QMetaSequenceEEEbSt8functionIFbPKvPvEES_S_E10unregister]' has different size /usr/i686-w64-mingw32/static/lib/libQt6Core.a(qitemselectionmodel.cpp.obj): duplicate section `.data$_ZZN9QMetaType23registerMutableViewImplI5QListI11QModelIndexE9QIterableI13QMetaSequenceEEEbSt8functionIFbPvS8_EES_S_E10unregister[__ZZN9QMetaType23registerMutableViewImplI5QListI11QModelIndexE9QIterableI13QMetaSeque nceEEEbSt8functionIFbPvS8_EES_S_E10unregister]' has different size /usr/i686-w64-mingw32/static/lib/libQt6Core.a(qitemselectionmodel.cpp.obj): duplicate section `.data$_ZZN9QMetaType21registerConverterImplI5QListI11QModelIndexE9QIterableI13QMetaSequenceEEEbSt8functionIFbPKvPvEES_S_E10unregister[__ZZN9QMetaType21registerConverterImplI5QListI11QModelIndexE9QIterableI13QMetaSequenceE EEbSt8functionIFbPKvPvEES_S_E10unregister]' has different size /usr/i686-w64-mingw32/static/lib/libQt6Core.a(qsortfilterproxymodel.cpp.obj): duplicate section `.data$_ZZN9QMetaType23registerMutableViewImplI5QListI21QPersistentModelIndexE9QIterableI13QMetaSequenceEEEbSt8functionIFbPvS8_EES_S_E10unregister[__ZZN9QMetaType23registerMutableViewImplI5QListI21QPersistentModelIndexE9 QIterableI13QMetaSequenceEEEbSt8functionIFbPvS8_EES_S_E10unregister]' has different size /usr/i686-w64-mingw32/static/lib/libQt6Core.a(qsortfilterproxymodel.cpp.obj): duplicate section `.data$_ZZN9QMetaType21registerConverterImplI5QListI21QPersistentModelIndexE9QIterableI13QMetaSequenceEEEbSt8functionIFbPKvPvEES_S_E10unregister[__ZZN9QMetaType21registerConverterImplI5QListI21QPersistentModelIndexE9QIte rableI13QMetaSequenceEEEbSt8functionIFbPKvPvEES_S_E10unregister]' has different size /usr/i686-w64-mingw32/static/lib/qt6/plugins/platforms/libqwindows.a(qwindowstheme.cpp.obj): duplicate section `.data$_ZZN9QMetaType23registerMutableViewImplI5QListI5QSizeE9QIterableI13QMetaSequenceEEEbSt8functionIFbPvS8_EES_S_E10unregister[__ZZN9QMetaType23registerMutableViewImplI5QListI5QSizeE9QIterableI13QMetaSe quenceEEEbSt8functionIFbPvS8_EES_S_E10unregister]' has different size /usr/i686-w64-mingw32/static/lib/qt6/plugins/platforms/libqwindows.a(qwindowstheme.cpp.obj): duplicate section `.data$_ZZN9QMetaType21registerConverterImplI5QListI5QSizeE9QIterableI13QMetaSequenceEEEbSt8functionIFbPKvPvEES_S_E10unregister[__ZZN9QMetaType21registerConverterImplI5QListI5QSizeE9QIterableI13QMetaSequen ceEEEbSt8functionIFbPKvPvEES_S_E10unregister]' has different size
The problem persists in Qt 6.2.1. I've been building Qt with GCC/mingw-w64 for Windows. I'm only seeing these warnings when using the i686-w64-mingw32 build but not when using the x86_64-w64-mingw32 build and does not happen with a shared Qt build (which is otherwise conducted in the same way). The data sections seem to be related to the meta object system so I added moc as component.
Note that this does not prevent the build to succeed and as far as I can tell the application still works fine.