.travis.yml

matrix:
  include:
    - os: linux
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - g++-4.8 gcc-4.8-plugin-dev
      env:
         - MATRIX_EVAL="CC=gcc-4.8 && CXX=g++-4.8"

    # works on Precise and Trusty
    - os: linux
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - g++-4.9 gcc-4.9-plugin-dev
      env:
         - MATRIX_EVAL="CC=gcc-4.9 && CXX=g++-4.9"

    # works on Precise and Trusty
    - os: linux
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - g++-5 gcc-5-plugin-dev
      env:
         - MATRIX_EVAL="CC=gcc-5 && CXX=g++-5"

    # works on Precise and Trusty
    - os: linux
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - g++-6 gcc-6-plugin-dev
      env:
        - MATRIX_EVAL="CC=gcc-6 && CXX=g++-6"

    # works on Precise and Trusty
    - os: linux
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - g++-7 gcc-7-plugin-dev
      env:
        - MATRIX_EVAL="CC=gcc-7 && CXX=g++-7"

    - os: linux
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - g++-8 gcc-8-plugin-dev
      env:
        - MATRIX_EVAL="CC=gcc-8 && CXX=g++-8"

    - os: linux
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - g++-9 gcc-9-plugin-dev
      env:
        - MATRIX_EVAL="CC=gcc-9 && CXX=g++-9"

language: c
compiler:
  - gcc

before_install:
  - eval "${MATRIX_EVAL}"
  - sudo apt-get update -qq
  - sudo apt-get install -qq python-six python-pygments graphviz python-lxml

script:
- pwd=$(pwd -P)
- mkdir build
- cd build
- make -f $pwd/Makefile srcdir=$pwd/