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bug#29235: 26.0.50; tar.xz broken

From: Eli Zaretskii
Subject: bug#29235: 26.0.50; tar.xz broken
Date: Fri, 10 Nov 2017 09:47:08 +0200

> From: Devon Sean McCullough <address@hidden>
> Date: Thu, 9 Nov 2017 16:41:34 -0500
> Emacs fails to open tar.xz files
>       Error while executing "xz -c -q -d < /tmp/bar.tar.xz"
>       /bin/sh: xz: command not found
> Note that MacOSX lacks xz but has tar
> which automagically decompresses xz.

Having tar or bsdtar does not help in this case, because what Emacs
needs is the uncompressed tar file (which it will then display in
tar-mode).  By contrast, bsdtar will unpack the archive completely,
writing the files to the disk.  AFAIK, tar and bsdtar don't have an
option to just uncompress the archive, or did I miss something?

So yes, you really need top install xz for this feature to work.

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