From da3b6b3f966a17d8a1257c2fa61840bbdc40ea7e Mon Sep 17 00:00:00 2001
From: Tim Graham <timograham@gmail.com>
Date: Wed, 1 Jun 2016 11:01:37 -0400
Subject: [PATCH] [1.9.x] Ignored new warnings when building the docs with
 Sphinx 1.4.

Backport of af3273757397fa88163174546f2b620d7b4837ed from master
---
 docs/conf.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/docs/conf.py b/docs/conf.py
index 49f8d82b07..7d237f6d06 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -145,6 +145,9 @@ intersphinx_mapping = {
 # Python's docs don't change every week.
 intersphinx_cache_limit = 90  # days
 
+# The 'versionadded' and 'versionchanged' directives are overridden.
+suppress_warnings = ['app.add_directive']
+
 # -- Options for HTML output ---------------------------------------------------
 
 # The theme to use for HTML and HTML Help pages.  See the documentation for