linux-kernel - [PATCH RFC 1/4] docs-rst: fix PDF build errors

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Message-Id: <3f76da060931fae3b94e1f349df37f15955cd740.1478040090.git.mchehab@osg.samsung.com>
Date:   Tue,  1 Nov 2016 16:44:10 -0600
From:   Mauro Carvalho Chehab <mchehab@....samsung.com>
To:     Linux Doc Mailing List <linux-doc@...r.kernel.org>
Cc:     Mauro Carvalho Chehab <mchehab@....samsung.com>,
        Mauro Carvalho Chehab <mchehab@...radead.org>,
        Jim Davis <jim.epost@...il.com>,
        Jonathan Corbet <corbet@....net>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>
Subject: [PATCH RFC 1/4] docs-rst: fix PDF build errors

PDF build on Kernel 4.9-rc? returns an error. This is
because we're re-defining a command too late. Move
such redefinition to LaTeX preamble.

Tested by building the documentation on interactive mode:
	make PDFLATEX=xelatex -C Documentation/output/./latex

Fixes: e61a39baf74d ("[media] index.rst: Fix LaTeX error in interactive mode on Sphinx 1.4.x")

Signed-off-by: Mauro Carvalho Chehab <mchehab@....samsung.com>
---
 Documentation/conf.py         | 4 ++++
 Documentation/media/index.rst | 5 -----
 2 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/Documentation/conf.py b/Documentation/conf.py
index d9bad21dd427..814c336e5f5e 100644
--- a/Documentation/conf.py
+++ b/Documentation/conf.py
@@ -332,6 +332,10 @@ latex_elements = {
      '''
 }
 
+# Fix reference escape troubles with Sphinx 1.4.x
+if minor > 3:
+    latex_elements['preamble']  += '\\renewcommand*{\\DUrole}[2]{ #2 }'
+
 # Grouping the document tree into LaTeX files. List of tuples
 # (source start file, target name, title,
 #  author, documentclass [howto, manual, or own class]).
diff --git a/Documentation/media/index.rst b/Documentation/media/index.rst
index e347a3e7bdef..7f8f0af620ce 100644
--- a/Documentation/media/index.rst
+++ b/Documentation/media/index.rst
@@ -1,11 +1,6 @@
 Linux Media Subsystem Documentation
 ===================================
 
-.. Sphinx 1.4.x has a definition for DUrole that doesn't work on alltt blocks
-.. raw:: latex
-
-	\renewcommand*{\DUrole}[2]{ #2 }
-
 Contents:
 
 .. toctree::
-- 
2.7.4