Error During Cross Compilation

[Martin Glueck]

Hi,

I'M trying to cross compile QT6.10.2 for an arm64 platform from source.
I compile and installed the Host Build without problems, but when I try to configure the QT6 arm build I got the following error:

-- Could NOT find Qt6CoreTools (missing: Qt6CoreTools_DIR)
CMake Debug Log at qtbase/cmake/QtToolHelpers.cmake:741 (find_package):
  The internally managed CMAKE_FIND_PACKAGE_REDIRECTS_DIR.

    /data/fast/qt6/rk3506/qt6-arm-build/CMakeFiles/pkgRedirects

  CMAKE_PREFIX_PATH variable [CMAKE_FIND_USE_CMAKE_PATH].

    /data/fast/qt6/rk3506/arm-buildroot-linux-gnueabihf_sdk-buildroot/lib/cmake

  CMAKE_FRAMEWORK_PATH and CMAKE_APPBUNDLE_PATH variables
  [CMAKE_FIND_USE_CMAKE_PATH].

  Paths specified by the find_package HINTS option.

    none

  Paths specified by the find_package PATHS option.

    none

  find_package considered the following locations for Qt6CoreTools's Config
  module:

  The file was not found.

Call Stack (most recent call first):
  qtbase/cmake/QtToolHelpers.cmake:83 (qt_internal_find_tool)
  qtbase/src/tools/syncqt/CMakeLists.txt:36 (qt_internal_add_tool)

I'm using the following command:
make --debug-find-pkg=Qt6CoreTools ../../src/ -GNinja -DCMAKE_BUILD_TYPE=Release -DQT_BUILD_EXAMPLES=OFF -DQT_BUILD_TESTS=OFF -DQT_HOST_PATH=/data/fast/qt6/qt-host -DCMAKE_STAGING_PREFIX=/data/fast/qt6/rk3506/qt6-arm-install -DCMAKE_INSTALL_PREFIX=/usr/local/qt6 -DCMAKE_TOOLCHAIN_FILE=/data/fast/qt6/rk3506/arm-buildroot-linux-gnueabihf_sdk-buildroot/share/buildroot/toolchainfile.cmake -DQT_QMAKE_TARGET_MKSPEC=devices/linux-rasp-pi4-aarch64

Has anybody an idea what I'm doing wrong here?

Thanks
Martin