mason bz2 package needs pkg-config for the time being

Dane Springmeyer · Dane Springmeyer · commit bf6700b9bea9 · 2016-07-28T12:14:29.000-07:00
diff --git a/.travis.yml b/.travis.yml
@@ -22,7 +22,8 @@ addons:
     sources:
      - ubuntu-toolchain-r-test
     packages:
-     - libstdc++6
+     - pkg-config
+     - make
      - libstdc++-5-dev
 
 cache:
