language: node_js
node_js:
  - 6
  - 8

language: node_js
node_js:
  - 6
  - 8
addons:
  apt:
    sources:
      - ubuntu-toolchain-r-test
    packages:
      - g++-6
env:
  - MATRIX_EVAL="CC=gcc-6 && CXX=g++-6"
before_install:
    - eval "${MATRIX_EVAL}"

Use GCC 6 for `node-pty`
Use GCC 6 for `node-pty`
