[Development] [5.7-beta] compile error with xcode-6.4

[Tim Blechmann]

compiling the 5.7-beta tarball with xcode-6.4 fails with:

> In file included from /Users/tim/dev/qt3rd/qtbase/src/gui/image/qicon.cpp:1:
> In file included from /Users/tim/dev/qt3rd/qtbase/src/gui/kernel/qt_gui_pch.h:69:
> In file included from /Users/tim/dev/qt3rd/qtbase/include/QtGui/qbitmap.h:1:
> In file included from /Users/tim/dev/qt3rd/qtbase/include/QtGui/../../src/gui/image/qbitmap.h:43:
> In file included from /Users/tim/dev/qt3rd/qtbase/include/QtGui/qpixmap.h:1:
> In file included from /Users/tim/dev/qt3rd/qtbase/include/QtGui/../../src/gui/image/qpixmap.h:47:
> In file included from /Users/tim/dev/qt3rd/qtbase/include/QtCore/qsharedpointer.h:1:
> In file included from /Users/tim/dev/qt3rd/qtbase/include/QtCore/../../src/corelib/tools/qsharedpointer.h:48:
> In file included from /Users/tim/dev/qt3rd/qtbase/include/QtCore/qsharedpointer_impl.h:1:
> In file included from /Users/tim/dev/qt3rd/qtbase/include/QtCore/../../src/corelib/tools/qsharedpointer_impl.h:65:
> In file included from /Users/tim/dev/qt3rd/qtbase/include/QtCore/qdebug.h:1:
> In file included from /Users/tim/dev/qt3rd/qtbase/include/QtCore/../../src/corelib/io/qdebug.h:51:
> In file included from /Users/tim/dev/qt3rd/qtbase/include/QtCore/qvector.h:1:
> /Users/tim/dev/qt3rd/qtbase/include/QtCore/../../src/corelib/tools/qvector.h:759:21: error: destination for this 'memmove' call is a pointer to class containing a dynamic class
>       'QPixmap'; vtable pointer will be overwritten [-Werror,-Wdynamic-class-memaccess]
>             memmove(abegin, aend, (d->size - itemsToErase - itemsUntouched) * sizeof(T));
>             ~~~~~~~ ^
> /Users/tim/dev/qt3rd/qtbase/include/QtCore/../../src/corelib/tools/qvector.h:450:3: note: in instantiation of member function 'QVector<QPixmapIconEngineEntry>::erase' requested
>       here
>   erase(d->begin() + i, d->begin() + i + 1); }
>   ^
> /Users/tim/dev/qt3rd/qtbase/src/gui/image/qicon.cpp:288:25: note: in instantiation of member function 'QVector<QPixmapIconEngineEntry>::remove' requested here
>                 pixmaps.remove(idx);
>                         ^
> /Users/tim/dev/qt3rd/qtbase/include/QtCore/../../src/corelib/tools/qvector.h:759:21: note: explicitly cast the pointer to silence this warning
>             memmove(abegin, aend, (d->size - itemsToErase - itemsUntouched) * sizeof(T));
>                     ^
>                     (void*)
> 1 error generated.

has support for xcode-6.4 been dropped?
https://wiki.qt.io/Qt_5.7_Tools_and_Versions still lists OSX 10.9 with
xcode-6.1.1

thanks a lot,
tim