[Qt 6.8.0 beta3] Cannot do a crossbuild for QNX 7.1.0 on Windows

 C:\Users\qt\RTA\Qt_6.8.0\6.8.0\Src\configure
 -no-pch -no-dbus -skip qtapplicationmanager -skip qtprotobuf 
-qt-host-path C:\Users\qt\RTA\Qt_6.8.0\6.8.0\msvc2022_64 -extprefix 
C:\Users\qt\RTA\qnx_mount -prefix /qt -- 
-DCMAKE_TOOLCHAIN_FILE=C:\Users\qt\RTA\Qt_6.8.0\6.8.0\Src\coin\provisioning\common\shared\cmake_toolchain_files\qnx-toolchain-aarch64le.cmake
 -DCMAKE_BUILD_WITH_INSTALL_RPATH=TRUE

 -- Could 
NOT find Clang (missing: Clang_DIR)
-- Could NOT find Clang (missing: Clang_DIR)
-- Configuring submodule 'qtwebengine'
-- Configuring submodule 'qtdoc'
-- Configuring submodule 'qtgrpc'
CMake Warning at qtgrpc/src/tools/host/CMakeLists.txt:20 (find_package):
  Found package configuration file:

    
C:/Users/qt/RTA/Qt_6.8.0/6.8.0/msvc2022_64/lib/cmake/Qt6ProtobufTools/Qt6ProtobufToolsConfig.cmake

  but it set Qt6ProtobufTools_FOUND to FALSE so package 
"Qt6ProtobufTools" is
  considered to be NOT FOUND.  Reason given by package:

  Qt6ProtobufTools could not be found because dependency WrapProtoc 
could not
  be found.



CMake Warning at qtgrpc/src/tools/host/CMakeLists.txt:28 (find_package):
  Found package configuration file:

    
C:/Users/qt/RTA/Qt_6.8.0/6.8.0/msvc2022_64/lib/cmake/Qt6GrpcTools/Qt6GrpcToolsConfig.cmake

  but it set Qt6GrpcTools_FOUND to FALSE so package "Qt6GrpcTools" is
  considered to be NOT FOUND.  Reason given by package:

  Qt6GrpcTools could not be found because dependency WrapProtoc could 
not be
  found.



CMake Warning at qtbase/cmake/QtToolHelpers.cmake:709 (find_package):
  Found package configuration file:

    
C:/Users/qt/RTA/Qt_6.8.0/6.8.0/msvc2022_64/lib/cmake/Qt6ProtobufTools/Qt6ProtobufToolsConfig.cmake

  but it set Qt6ProtobufTools_FOUND to FALSE so package 
"Qt6ProtobufTools" is
  considered to be NOT FOUND.  Reason given by package:

  Qt6ProtobufTools could not be found because dependency WrapProtoc 
could not
  be found.

Call Stack (most recent call first):
  qtbase/cmake/QtToolHelpers.cmake:78 (qt_internal_find_tool)
  qtgrpc/src/tools/qtprotobufgen/CMakeLists.txt:5 (qt_internal_add_tool)


CMake Error at qtbase/cmake/QtToolHelpers.cmake:752 (message):
  Failed to find the host tool "Qt6::qtprotobufgen".  It is part of the
  Qt6ProtobufTools package, but the package could not be found.  Make 
sure
  you have built and installed the host Protobuf module, which will 
ensure
  the creation of the Qt6ProtobufTools package.
Call Stack (most recent call first):
  qtbase/cmake/QtToolHelpers.cmake:78 (qt_internal_find_tool)
  qtgrpc/src/tools/qtprotobufgen/CMakeLists.txt:5 (qt_internal_add_tool)


-- Configuring incomplete, errors occurred!
CMake Error at 
C:/Users/qt/RTA/Qt_6.8.0/6.8.0/Src/qtbase/cmake/QtProcessConfigureArgs.cmake:1131
 (message):
  CMake exited with code 1.


CMake Error at 
C:/Users/qt/RTA/Qt_6.8.0/6.8.0/Src/cmake/QtIRProcessHelpers.cmake:173 
(message):
  C:\Users\qt\RTA\Qt_6.8.0\6.8.0\Src/qtbase/configure.bat -top-level 
-no-pch
  -no-dbus -skip qtapplicationmanager -skip qtprotobuf -qt-host-path
  C:\Users\qt\RTA\Qt_6.8.0\6.8.0\msvc2022_64 -extprefix
  C:\Users\qt\RTA\qnx_mount -prefix /qt --
  
-DCMAKE_TOOLCHAIN_FILE=C:\Users\qt\RTA\Qt_6.8.0\6.8.0\Src\coin\provisioning\common\shared\cmake_toolchain_files\qnx-toolchain-aarch64le.cmake
  -DCMAKE_BUILD_WITH_INSTALL_RPATH=TRUE exited with status: 1

Call Stack (most recent call first):
  C:/Users/qt/RTA/Qt_6.8.0/6.8.0/Src/cmake/QtTopLevelHelpers.cmake:35 
(qt_ir_execute_process_and_log_and_handle_error)
  C:/Users/qt/RTA/Qt_6.8.0/6.8.0/Src/cmake/QtTopLevelHelpers.cmake:57 
(qt_tl_run_toplevel_configure)
  
C:/Users/qt/RTA/Qt_6.8.0/6.8.0/Src/cmake/QtTopLevelConfigureScript.cmake:17
 (qt_tl_run_main_script)


ninja: error: loading 'build.ninja': The system cannot find the file 
specified.