On Sun, Dec 31, 2017 at 04:11:29PM +0100, Marius Bakke wrote:
> From e83e66d3efab96b181526ce9feaad42adb024f26 Mon Sep 17 00:00:00 2001
> From: Marius Bakke <mbakke@fastmail.com>
> Date: Wed, 20 Dec 2017 17:40:43 +0100
> Subject: [PATCH] gnu: docbook-xsl: Disable recursion in string substitution.
> MIME-Version: 1.0
> Content-Type: text/plain; charset=UTF-8
> Content-Transfer-Encoding: 8bit
> 
> Fixes <https://bugs.gnu.org/29782>.
> Reported by Gábor Boskovits.
> 
> * gnu/packages/patches/docbook-xsl-nonrecursive-string-subst.patch: New file.
> * gnu/local.mk (dist_patch_DATA): Register it.
> * gnu/packages/docbook.scm (docbook-xsl)[source](patches): Use it.
> [native-inputs]: Add XZ.
> [arguments]: Adjust PATH accordingly.

>      (native-inputs `(("bzip2" ,bzip2)
> +                     ("xz" ,xz)
>                       ("tar" ,tar)))

Does it still need bzip2?