shiboken6 installs unnecessary files

We noticed shiboken6 installs all kind of unrelated files in the python folder:

• empty build dirs,
• random files with shiboken6 is the name

The reason is shibokenmodule/CMakeLists.txt which contains:

install(DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/../"
 DESTINATION "${PYTHON_SITE_PACKAGES}/shiboken6/"
 FILES_MATCHING PATTERN "shiboken6.*")

1/ From the CMake documentation:

The DIRECTORY form installs contents of one or more directories to a given destination. The directory structure is copied verbatim to the destination.

So, regardless of the FILES_MATCHING parameter, empty folders are created

2/ The filter is too vague and unrelated files are installed in ${PYTHON_SITE_PACKAGES}/shiboken6/. e.g.: shiboken6.pc