language: ruby
env:
- CXX=g++-4.8
rvm:
- 2.0
- 2.1
- 2.2
- 2.3.1
before_install:
- gem install bundler -v 1.12.0
cache: bundler
addons:
apt:
sources:
- ubuntu-toolchain-r-test
packages:
- g++-4.8