Have travis install g++ so it builds the regex engine properly

samcv · samcv · commit 25ac9e85c334 · 2016-12-19T12:29:01.000-08:00
diff --git a/.travis.yml b/.travis.yml
@@ -2,6 +2,7 @@ addons:
   apt:
     packages:
       - graphviz
+      - g++
 branches:
   except:
     - gh-pages
