language: node_js
node_js:
- node
- v10.2.1
env:
- CXX=g++-4.9
addons:
  apt:
    sources:
    - ubuntu-toolchain-r-test
    packages:
    - g++-4.9
before_install:
  - sudo apt-get -qq update
  - sudo apt-get install -y libgif-dev