[REG 6.0.0 beta2->beta3] Building an example with qmake targeting the iOS Device SDK/Simulator config fails

Ld Debug-iphonesimulator/addressbook.app/addressbook normal x86_64
    cd /Users/qt/RTA/qt5/Examples/Qt-6.0.0/widgets/itemviews/build-addressbook-Qt_6_0_0_for_iOS_Simulator-Debug
    export PATH="/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:/Users/qt/RTA/qt5/6.0.0/clang_64/bin:/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin"
    /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++ -target x86_64-apple-ios12.0-simulator -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator14.1.sdk -L/Users/qt/RTA/qt5/Examples/Qt-6.0.0/widgets/itemviews/build-addressbook-Qt_6_0_0_for_iOS_Simulator-Debug/Debug-iphonesimulator -L/Users/qt/RTA/qt5/6.0.0/ios/plugins/platforms/darwin -L/Users/qt/RTA/qt5/6.0.0/ios/plugins/iconengines -L/Users/qt/RTA/qt5/6.0.0/ios/plugins/imageformats -L/Users/qt/RTA/qt5/6.0.0/ios/lib -L/Users/qt/RTA/qt5/6.0.0/ios/lib/objects-Debug/Widgets_resources_qstyle/.rcc -L/Users/qt/RTA/qt5/6.0.0/ios/lib/objects-Debug/Widgets_resources_qstyle1/.rcc -L/Users/qt/RTA/qt5/6.0.0/ios/lib/objects-Debug/Widgets_resources_qmessagebox/.rcc -L/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator14.1.sdk/System/Library/Frameworks -L/Users/qt/RTA/qt5/6.0.0/ios/lib/objects-Debug/Gui_resources_qpdf/.rcc -L/Users/qt/RTA/qt5/6.0.0/ios/lib/objects-Debug/Core_resources_mimetypes/.rcc -F/Users/qt/RTA/qt5/Examples/Qt-6.0.0/widgets/itemviews/build-addressbook-Qt_6_0_0_for_iOS_Simulator-Debug/Debug-iphonesimulator -filelist /Users/qt/RTA/qt5/Examples/Qt-6.0.0/widgets/itemviews/build-addressbook-Qt_6_0_0_for_iOS_Simulator-Debug/addressbook.build/Debug-iphonesimulator/addressbook.build/Objects-normal/x86_64/addressbook.LinkFileList -dead_strip -Xlinker -object_path_lto -Xlinker /Users/qt/RTA/qt5/Examples/Qt-6.0.0/widgets/itemviews/build-addressbook-Qt_6_0_0_for_iOS_Simulator-Debug/addressbook.build/Debug-iphonesimulator/addressbook.build/Objects-normal/x86_64/addressbook_lto.o -Xlinker -no_deduplicate -Xlinker -objc_abi_version -Xlinker 2 -stdlib=libc++ -Wl,-e,_qt_main_wrapper -Wl,-rpath,@executable_path/Frameworks -framework AssetsLibrary -lz -lm -framework MobileCoreServices -framework UIKit -framework OpenGLES -Xlinker -sectcreate -Xlinker __TEXT -Xlinker __entitlements -Xlinker /Users/qt/RTA/qt5/Examples/Qt-6.0.0/widgets/itemviews/build-addressbook-Qt_6_0_0_for_iOS_Simulator-Debug/addressbook.build/Debug-iphonesimulator/addressbook.build/addressbook.app-Simulated.xcent -lqiosnsphotolibrarysupport_debug -lqsvgicon_debug -lqgif_debug -lqico_debug -lqjpeg_debug -lqsvg_debug -lQt6Svg_debug -lQt6Widgets_debug /Users/qt/RTA/qt5/6.0.0/ios/lib/objects-Debug/Widgets_resources_qstyle/.rcc/qrc_qstyle.cpp.o /Users/qt/RTA/qt5/6.0.0/ios/lib/objects-Debug/Widgets_resources_qstyle1/.rcc/qrc_qstyle1.cpp.o /Users/qt/RTA/qt5/6.0.0/ios/lib/objects-Debug/Widgets_resources_qmessagebox/.rcc/qrc_qmessagebox.cpp.o -lQt6Gui_debug -framework ImageIO -framework CoreGraphics -lQt6BundledHarfbuzz_debug -framework CoreText -lQt6BundledFreetype_debug -lQt6BundledLibpng_debug -framework Metal /Users/qt/RTA/qt5/6.0.0/ios/lib/objects-Debug/Gui_resources_qpdf/.rcc/qrc_qpdf.cpp.o -lQt6Core_debug -lQt6Core_qobject_debug -framework CoreFoundation -framework Foundation -lQt6BundledPcre2_debug /Users/qt/RTA/qt5/6.0.0/ios/lib/objects-Debug/Core_resources_mimetypes/.rcc/qrc_mimetypes.cpp.o -Xlinker -dependency_info -Xlinker /Users/qt/RTA/qt5/Examples/Qt-6.0.0/widgets/itemviews/build-addressbook-Qt_6_0_0_for_iOS_Simulator-Debug/addressbook.build/Debug-iphonesimulator/addressbook.build/Objects-normal/x86_64/addressbook_dependency_info.dat -o /Users/qt/RTA/qt5/Examples/Qt-6.0.0/widgets/itemviews/build-addressbook-Qt_6_0_0_for_iOS_Simulator-Debug/Debug-iphonesimulator/addressbook.app/addressbook
ld: entry point (_qt_main_wrapper) undefined. for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)** BUILD FAILED **
The following build commands failed:
	Ld Debug-iphonesimulator/addressbook.app/addressbook normal x86_64
(1 failure)
make: *** [xcodebuild-debug-simulator] Error 65
12:25:35: The process "/usr/bin/make" exited with code 2.
Error while building/deploying project addressbook (kit: Qt 6.0.0 for iOS Simulator)
The kit Qt 6.0.0 for iOS Simulator has configuration issues which might be the root cause for this problem.
When executing step "Make"