TST: add extra apt packages for doc build

matthew-brett · matthew-brett · commit b3fbda91703f · 2017-03-13T16:03:43.000-07:00
pdf doc build needs LaTeX packages.
diff --git a/.travis.yml b/.travis.yml
@@ -77,6 +77,9 @@ matrix:
           packages:
             - graphviz
             - texlive-latex-base
+            - texlive-latex-extra
+            - texlive-fonts-recommended
+            - texlive-latex-recommended
 
 before_install:
     - source tools/travis_tools.sh
