linux-kernel - Re: make pdfdocs fails on Debian stable

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Date:   Mon, 3 Jan 2022 21:58:31 +0100
From:   Mauro Carvalho Chehab <mchehab@...nel.org>
To:     Christoph Hellwig <hch@....de>
Cc:     Jonathan Corbet <corbet@....net>, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: make pdfdocs fails on Debian stable

Em Mon, 3 Jan 2022 18:11:08 +0100
Christoph Hellwig <hch@....de> escreveu:

> On Mon, Jan 03, 2022 at 05:58:14PM +0100, Mauro Carvalho Chehab wrote:
> > Weird... when you do a make, it should have checked for all
> > dependencies, when it internally runs:
> > 
> > 	./scripts/sphinx-pre-install   
> 
> Detected OS: Debian GNU/Linux 11 (bullseye).
> Sphinx version: 3.4.3
> 
> 
> All optional dependencies are met.
> Needed package dependencies are met.
> 
> > Basically, you need the xelatex package for it to work, as PDF
> > output is via LaTeX. This is not a mandatory requirement, though,
> > as most people are only interested on html output, and LaTeX
> > dependencies require to install lots of stuff. it should provide you
> > a list of packages required for PDF, with a suggestion of using
> > apt-get to install it.
> > 
> > In this specific case, I guess the package name is 'texlive-xetex'.  
> 
> texlive-xetex is installed and seems to work find on various other
> documents produced earlier by make pdfdocs

Ah, the error is specific to RCU.tex then?

You'll need to re-run xelatex with -interaction=interactive, in
order to be able to identify what's the root cause.

You could do this by using LATEXOPTS, e. g.:

	$ make SPHINXDIRS=RCU LATEXOPTS="-interaction=interactive" pdfdocs

With that, LaTeX will stop at the offending line from the .tex file.

On a quick test here, I'm getting these at Fedora 35:

	(/usr/share/texlive/texmf-dist/tex/latex/l3packages/xtemplate/xtemplate.sty)

	! LaTeX Error: File `ctexhook.sty' not found.

	Type X to quit or <RETURN> to proceed,
	or enter new name. (Default extension: sty)

It seems that a recent change (probably to better address issues with 
Chinese and Japanese translation) added an extra dependency to some
stylesheet.

I solved it by installing this package: "texlive-ctex".

The enclosed patch should fix the script for it to report such need.

Thanks,
Mauro

[PATCH] scripts: sphinx-pre-install: add required ctex dependency

After a change meant to fix support for oriental characters
(Chinese, Japanese, Korean), ctex stylesheet is now a requirement
for PDF output.

Signed-off-by: Mauro Carvalho Chehab <mchehab@...nel.org>

diff --git a/scripts/sphinx-pre-install b/scripts/sphinx-pre-install
index 288e86a9d1e5..46aaab414098 100755
--- a/scripts/sphinx-pre-install
+++ b/scripts/sphinx-pre-install
@@ -78,6 +78,7 @@ my %texlive = (
 	'ucs.sty'            => 'texlive-ucs',
 	'upquote.sty'        => 'texlive-upquote',
 	'wrapfig.sty'        => 'texlive-wrapfig',
+	'ctexhook.sty'       => 'texlive-ctex',
 );
 
 #