* readelf.c (adjust_relative_path): New function.

    * readelf.c (adjust_relative_path): New function.
        (struct archive_info): New type.
        (setup_archive): New function.
        (release_archive): New function.
        (setup_nested_archive): New function.
        (get_archive_member_name): New function.
        (get_archive_member_name_at): New function.
        (make_qualified_name): New function.
        (process_archive): Factor out code for reading archive index and
        long filename table to setup_archive.  Add support for thin archives.