linux-kernel - [PATCH v2 5/6] sphinx.rst: describe the install requirements for kfigure

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Date:   Fri, 14 Jul 2017 13:41:20 -0300
From:   Mauro Carvalho Chehab <mchehab@...pensource.com>
To:     Linux Doc Mailing List <linux-doc@...r.kernel.org>
Cc:     Mauro Carvalho Chehab <mchehab@...pensource.com>,
        Mauro Carvalho Chehab <mchehab@...radead.org>,
        linux-kernel@...r.kernel.org, Jonathan Corbet <corbet@....net>,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        Markus Heiser <markus.heiser@...marit.de>,
        SeongJae Park <sj38.park@...il.com>
Subject: [PATCH v2 5/6] sphinx.rst: describe the install requirements for kfigure

As we now have a document describing the install
requirements for Sphinx, add there the need for GraphViz
and ImageMagick.

Signed-off-by: Mauro Carvalho Chehab <mchehab@...pensource.com>
---
 Documentation/doc-guide/sphinx.rst | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/Documentation/doc-guide/sphinx.rst b/Documentation/doc-guide/sphinx.rst
index 4c6cb454eaa0..3a41483ed499 100644
--- a/Documentation/doc-guide/sphinx.rst
+++ b/Documentation/doc-guide/sphinx.rst
@@ -68,6 +68,18 @@ the virtual environment before building the documentation.
   functionalities required for ``XeLaTex`` to work. For PDF output you'll also
   need ``convert(1)`` from ImageMagick (https://www.imagemagick.org).
 
+Image output
+------------
+
+The kernel documentation build system contains an extension that
+handles images on both GraphViz and SVG formats (see
+:ref:`sphinx_kfigure`).
+
+For it to work, you need to install both GraphViz and ImageMagick
+packages. If those packages are not installed, the build system will
+still build the documentation, but won't include any images at the
+output.
+
 Sphinx Build
 ============
 
@@ -278,6 +290,7 @@ Rendered as:
 
         - column 3
 
+.. _sphinx_kfigure:
 
 Figures & Images
 ================
-- 
2.13.0