.travis.yml

language: cpp
dist: trusty
matrix:
  include:
    # works on Precise and Trusty
    - os: linux
      addons:
        apt:
          sources:
            - george-edison55-precise-backports
            - ubuntu-toolchain-r-test
          packages:
            - g++-4.9
            - cmake-data
            - cmake
      env:
         - MATRIX_EVAL="CC=gcc-4.9 && CXX=g++-4.9"

    # works on Precise and Trusty
    - os: linux
      addons:
        apt:
          sources:
            - george-edison55-precise-backports
            - ubuntu-toolchain-r-test
          packages:
            - g++-7
            - cmake-data
            - cmake
      env:
        - MATRIX_EVAL="CC=gcc-7 && CXX=g++-7"

before_install:
    - eval "${MATRIX_EVAL}"

install:
    - sudo apt-get install libboost-dev libssl-dev libz-dev

script:
    - cmake --version
    - g++ --version
    - mkdir build
    - cd build && cmake -DENABLE_EXAMPLES=on -DENABLE_UNITTEST=on .. && make -j5