linux-kernel - Re: [PATCH 0/5] Add a script to check for Sphinx install requirements

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Message-Id: <576692E6-3663-4E69-A92B-7F7DA326B081@darmarit.de>
Date:   Mon, 17 Jul 2017 10:15:26 +0200
From:   Markus Heiser <markus.heiser@...marit.de>
To:     Mauro Carvalho Chehab <mchehab@...pensource.com>
Cc:     Linux Doc Mailing List <linux-doc@...r.kernel.org>,
        Mauro Carvalho Chehab <mchehab@...radead.org>,
        linux-kernel@...r.kernel.org, Jonathan Corbet <corbet@....net>,
        SeongJae Park <sj38.park@...il.com>,
        Daniel Vetter <daniel.vetter@...ll.ch>
Subject: Re: [PATCH 0/5] Add a script to check for Sphinx install requirements


> Am 17.07.2017 um 00:08 schrieb Mauro Carvalho Chehab <mchehab@...pensource.com>:
> 
> [1] There's an unrelated bug with the Kernel's sphinx extension
> kimage: when parsing GraphViz graphs, it uses "-Tpdf" argument,
> in order to generate a PDF image. That doesn't work on some
> distros, as GraphViz doesn't support PDF images. 
> 

Hmm .. http://www.graphviz.org/content/output-formats#dpdf

Is it a problem of the GraphViz version?

See http://www.graphviz.org/News.php ..

  """New Release 2.32 (1 August 2013)

     ... In addition, if the poppler library is available, Graphviz
     can now use PDF files as images."""

I suppose that 2.32 is in your distro .. it's from 2013

It seems, that the graphiz homepage is not up to date. I found 
the repo at github. There is a issue about PDF

  https://github.com/ellson/graphviz/issues/1180

So I guess graphviz is compiled without HAVE_PANGOCAIRO in your
distros?

-- Markus --