Re: tar-pax or tar-ustar as a default for automake

[Bob Friesenhahn]

On Thu, 23 Jun 2011, Andrew W. Nosenko wrote:
> Hmmm...  What about do not enforce any particular format by default?
> Especially if consider that on my FreeBSD automake already enforses
> ustar when tries to enforce v7 ;-)
>
>    tardir=testprog-0.0.0 && /usr/local/bin/bash
> /home/user/tmp/testprog/missing --run tar chof - "$tardir" | bzip2 -9
> -c >testprog-0.0.0.tar.bz2
>
> The 'o' option in the 'tar chof -' above means '-‐format ustar' for
> bsdtar instead of '--format v7' for GNU tar :-)

That is very interesting.  On my Solaris system, I see that the 'gtar' 
program was selected.  With this 'gtar' the -o option is equivalent 
to:

      --old-archive, --portability
                             same as --format=v7

but I see that with bsdtar -o requests a different format:

     -o      (c, r, u mode) A synonym for --format ustar

Bob
--
Bob Friesenhahn
address@hidden, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/