language: node_js
node_js:
    - "6"
addons:
    apt:
        sources:
            - ubuntu-toolchain-r-test
        packages:
            - libcairo2-dev
            - libjpeg8-dev
            - libpango1.0-dev
            - libgif-dev
            - g++-4.9
env:
    - CXX=g++-4.9
before_install:
    - npm explore npm -g -- npm install node-gyp@latest
install:
    - npm install;
script:
    - npm i canvas && npm run coveralls