From a4c3ec892f2635ad074252dd073c4fc1d9aa40e4 2017-12-07 21:29:06
From: Corey McCandless <cmccandless@users.noreply.github.com>
Date: 2017-12-07 21:29:06
Subject: [PATCH] sphinx: turn warnings into errors

Resolves #10916
---

diff --git a/docs/Makefile b/docs/Makefile
index 049f749..c5143bd 100644
--- a/docs/Makefile
+++ b/docs/Makefile
@@ -12,7 +12,7 @@ PYTHON        = python3
 # Internal variables.
 PAPEROPT_a4     = -D latex_paper_size=a4
 PAPEROPT_letter = -D latex_paper_size=letter
-ALLSPHINXOPTS   = -d build/doctrees $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) $(SRCDIR)
+ALLSPHINXOPTS   = -d build/doctrees -W $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) $(SRCDIR)
 
 .PHONY: help clean html web pickle htmlhelp latex changes linkcheck api