[Bug-tar] Support SCHILY.* options, please.

[Tim Kientzle]

Joerg Schilling's "star" archiver was one of the
very first to implement the POSIX.1-2001 extended
pax format, and some of his innovations would
be nice to see in GNU tar as well:

  * SCHILY.dev, SCHILY.ino - Store the device/inode number for files, 
similar to how cpio works.
  * SCHILY.fflags - store file flags on systems (including BSD and 
Linux) that support it
  * SCHILY.acl - Store POSIX.1e ACLs.

My own libarchive/bsdtar supports these for pax
format already.  I adopted them directly from
Joerg's design because he did a good job with
them.  As a result, star and bsdtar are now
quite interoperable.

I would like to see the various open-source
'tar' implementations cooperate on furthering the
standard.  Sharing the best ideas from the different
projects--GNU tar's excellent sparse file support; star's
ACL, fflags, and dev/ino approach; libarchive's handling
of POSIX.1e extended attributes--makes life better
for everyone.

Good luck!  It's nice to see such progress from
GNU tar after languishing for so many years.

Sincerely,

Tim Kientzle
address@hidden
Author of libarchive/bsdtar.