PySide6==6.2.2.1 required to build OneDriveGUI on FreeBSD

% git -C ~/dev/OneDriveGUI pull --ff-only
Already up to date.
% cd ~/dev/OneDriveGUI
% python3 -m pip install -r requirements.txt
Defaulting to user installation because normal site-packages is not writeable
ERROR: Could not find a version that satisfies the requirement PySide6==6.2.2.1 (from versions: none)
ERROR: No matching distribution found for PySide6==6.2.2.1
% cd ../pyside-setup
% python setup.py install --parallel=4 --build-tests
[WARNING]: ***** Exception while trying to prepare bdist_wheel override class: No module named 'wheel'. Skipping wheel overriding.
[ERROR]: qtpaths was not found in PATH: None was returned
Traceback (most recent call last):
  File "/usr/home/grahamperrin/dev/pyside-setup/setup.py", line 42, in <module>
    setup_runner.run_setup()
  File "/usr/home/grahamperrin/dev/pyside-setup/build_scripts/setup_runner.py", line 184, in run_setup
    qt_install_path = find_qt_install_path()
  File "/usr/home/grahamperrin/dev/pyside-setup/build_scripts/utils.py", line 1162, in find_qt_install_path
    qtpaths = where_is("qtpaths") if where_is("qtpaths") else where_is("qtpaths6")
  File "/usr/home/grahamperrin/dev/pyside-setup/build_scripts/utils.py", line 1160, in where_is
    return Path(which(x))
  File "/usr/local/lib/python3.9/pathlib.py", line 1082, in __new__
    self = cls._from_parts(args, init=False)
  File "/usr/local/lib/python3.9/pathlib.py", line 707, in _from_parts
    drv, root, parts = self._parse_args(args)
  File "/usr/local/lib/python3.9/pathlib.py", line 691, in _parse_args
    a = os.fspath(a)
TypeError: expected str, bytes or os.PathLike object, not NoneType
% python setup.py install --qtpaths=/usr/local/lib/qt6/bin/qtpaths6 --parallel=4 --build-tests
[WARNING]: ***** Exception while trying to prepare bdist_wheel override class: No module named 'wheel'. Skipping wheel overriding.
[WARNING]: ***** Exception while trying to prepare bdist_wheel override class: No module named 'wheel'. Skipping wheel overriding.
[INFO]: running install
/home/grahamperrin/.local/lib/python3.9/site-packages/setuptools/command/install.py:34: SetuptoolsDeprecationWarning: setup.py install is deprecated. Use build and pip and other standards-based tools.
  warnings.warn(
[INFO]: running build
-- The C compiler identification is Clang 14.0.5
-- The CXX compiler identification is Clang 14.0.5
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- SHIBOKEN_IS_CROSS_BUILD: FALSE
-- SHIBOKEN_BUILD_LIBS: ON
-- SHIBOKEN_BUILD_TOOLS: ON
-- BUILD_TESTS: 1
-- Using Qt 6
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Failed
-- Check if compiler accepts -pthread
-- Check if compiler accepts -pthread - yes
-- Found Threads: TRUE
-- Performing Test HAVE_STDATOMIC
-- Performing Test HAVE_STDATOMIC - Success
-- Found WrapAtomic: TRUE
-- Found PythonInterp: /usr/local/bin/python (found suitable version "3.9.16", minimum required is "3.7")
-- Found PythonLibs: /usr/local/lib/libpython3.9.so (found suitable version "3.9.16", minimum required is "3.7")
CMake Error at cmake/ShibokenHelpers.cmake:167 (find_package):
  Could not find a package configuration file provided by "Clang" with any of
  the following names:

    ClangConfig.cmake
    clang-config.cmake

  Add the installation prefix of "Clang" to CMAKE_PREFIX_PATH or set
  "Clang_DIR" to a directory containing one of the above files.  If "Clang"
  provides a separate development package or SDK, be sure it has been
  installed.
Call Stack (most recent call first):
  cmake/ShibokenSetup.cmake:35 (setup_clang)
  CMakeLists.txt:11 (include)


-- Configuring incomplete, errors occurred!
See also "/usr/home/grahamperrin/dev/pyside-setup/build/qfp-py3.9-qt6.4.2-64bit-release/build/shiboken6/CMakeFiles/CMakeOutput.log".
See also "/usr/home/grahamperrin/dev/pyside-setup/build/qfp-py3.9-qt6.4.2-64bit-release/build/shiboken6/CMakeFiles/CMakeError.log".
error: Error configuring shiboken6
Traceback (most recent call last):
  File "/usr/home/grahamperrin/dev/pyside-setup/setup.py", line 42, in <module>
    setup_runner.run_setup()
  File "/usr/home/grahamperrin/dev/pyside-setup/build_scripts/setup_runner.py", line 264, in run_setup
    raise RuntimeError(msg)
RuntimeError:
setup.py invocation failed with exit code: 1.


setup.py invocation was: /usr/local/bin/python setup.py install --qtpaths=/usr/local/lib/qt6/bin/qtpaths6 --parallel=4 --build-tests --internal-build-type=shiboken6

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