+
+ /* FIXME: The following value is never used. It seems to be intended
+ as a placeholder for a hypothetical option that should instruct tar
+ to recursively remove subdirectories in purge_directory(),
+ as opposed to the functionality of --recursive-unlink
+ (RECURSIVE_REMOVE_OPTION value), which removes them in
+ prepare_to_extract() phase. However, with the addition of more
+ meta-info to the incremental dumps, this should become unnecessary */
+ WANT_DIRECTORY_REMOVE_OPTION