Build docs in parallel (python#1842)

pitrou · web-flow · commit eba68e2c42e1 · 2017-05-29T12:05:45.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -42,7 +42,7 @@ matrix:
         # (Updating the version is fine as long as no warnings are raised by doing so.)
         - python -m pip install sphinx~=1.6.1
       script:
-        - make check suspicious html SPHINXOPTS="-q -W"
+        - make check suspicious html SPHINXOPTS="-q -W -j4"
     - os: linux
       language: c
       compiler: gcc
