[erlang-questions] Any way to force PAX/POSIX TAR format?

[zxq9]

According to the docs ( http://erlang.org/doc/man/erl_tar.html ) erl_tar produces USTAR format files by default, but switches to PAX (POSIX 1003.1-2001) headers when a USTAR limitation is reached (long filenames, unicode metadata, large UID/GID values, etc.).

Is there any option to force erl_tar to always produce PAX formatted tar files? (I could trigger it by arbitrarily including some USTAR limitation, but that's hackish enough to be discouraging.)

-Craig