.travis.yml

language: c
compiler:
  - clang
  - gcc
matrix:
  include:
    - os: osx
      osx_image: xcode10.2

    - os: osx
      osx_image: xcode9.4

    - os: osx
      osx_image: xcode8.3

    - os: osx
      osx_image: xcode7.3

    - os: osx
      osx_image: xcode6.4

    - os: linux
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - gcc-4.4
      env:
         - MATRIX_EVAL="CC=gcc-4.4"

    - os: linux
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - gcc-4.9
      env:
         - MATRIX_EVAL="CC=gcc-4.9"

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

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

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

    # works on Precise and Trusty
    - os: linux
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - gcc-7
      env:
        - MATRIX_EVAL="CC=gcc-8"

    # works on Precise and Trusty
    - os: linux
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - gcc-7
      env:
        - MATRIX_EVAL="CC=gcc-9"

before_install:
    - eval "${MATRIX_EVAL}"