Re: master 6d6bf46 2/2: Make dired-do-compress work for *.tar.gz files

[Glenn Morris]

Personally I'd just go with:

  uncompress-prog | tar

and simply assume that "uncompress-prog" is present (like the command
does now, I guess). Then you don't have to worry about testing for tar
options. It may be less elegant/efficient, but that hardly seems to matter.

Also, sounds like you can add .zip support too! :)
http://debbugs.gnu.org/21637