docs-rst: enable the Sphinx math extension
This extension will be used by the media books.
The name of the math image extension changed on Sphinx 1.4.x,
according with:
http://www.sphinx-doc.org/en/stable/ext/math.html#module-sphinx.ext.imgmath
Let's autodetect, to keep building with versions < 1.4.
Suggested-by: Markus Heiser <markus.heiser@darmarit.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
diff --git a/Documentation/conf.py b/Documentation/conf.py
index 61b71ae..23e2f0b 100644
--- a/Documentation/conf.py
+++ b/Documentation/conf.py
@@ -14,6 +14,11 @@
import sys
import os
+import sphinx
+
+# Get Sphinx version
+major, minor, patch = map(int, sphinx.__version__.split("."))
+
# If extensions (or modules to document with autodoc) are in another directory,
# add these directories to sys.path here. If the directory is relative to the
@@ -31,6 +36,12 @@
# ones.
extensions = ['kernel-doc', 'rstFlatTable', 'kernel_include']
+# The name of the math extension changed on Sphinx 1.4
+if minor > 3:
+ extensions.append("sphinx.ext.imgmath")
+else:
+ extensions.append("sphinx.ext.pngmath")
+
# Add any paths that contain templates here, relative to this directory.
templates_path = ['_templates']