ADDITIONAL_MAKE_CLEAN_FILES --------------------------- .. deprecated:: 3.15 Use :prop_dir:`ADDITIONAL_CLEAN_FILES` instead. Additional files to remove during the clean stage. A :ref:`;-list ` of files that will be removed as a part of the ``make clean`` target. Arguments to ``ADDITIONAL_MAKE_CLEAN_FILES`` may use :manual:`generator expressions `. This property only works for the Makefile generators. It is ignored on other generators.