From ea719f604224559f15e8a92ed8d43d46f28b49cb Mon Sep 17 00:00:00 2001
From: Matthias Geier <Matthias.Geier@gmail.com>
Date: Mon, 16 Dec 2019 17:57:37 +0100
Subject: [PATCH] Travis-CI: Treat Sphinx warnings a errors

---
 .travis.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index 11dc995..44dc3e1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -30,4 +30,4 @@ script:
   - python3 -m pytest
   - python3 doc/examples/run_all.py
   # This executes the example notebooks and runs the doctests:
-  - python3 -m sphinx doc/ _build/ -b doctest
+  - python3 -m sphinx doc/ _build/ -b doctest -W