tree 8c1194a455c33fe2e70096e01f61fadf5a29c9b9
parent 8b8bbf8fe5cfd9aada5f29dc6f6e5b8e4320d058
author Mauro Carvalho Chehab <mchehab@s-opensource.com> 1471364743 -0300
committer Jonathan Corbet <corbet@lwn.net> 1471560153 -0600

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>