.travis.yml

language: C++
dist: bionic
compiler: gcc
addons:
  apt:
    sources:
      - ubuntu-toolchain-r-test
    packages:
      - libeigen3-dev
script:
  # failed attempt at installing and using latest version of cmake
  # - sudo apt purge --auto-remove cmake
  # - sudo apt-get update
  # - wget -O - https://apt.kitware.com/keys/kitware-archive-latest.asc 2>/dev/null | gpg --dearmor - | sudo tee /etc/apt/trusted.gpg.d/kitware.gpg >/dev/null
  # - sudo apt-add-repository 'deb https://apt.kitware.com/ubuntu/ bionic main'
  # - sudo apt-get update
  # - sudo apt-get install cmake
  # - cmake -S . -B build
  # - cmake --build build
  # - cmake --build build --target test

  # classic cmake build procedure
  - mkdir build
  - cd build
  - cmake ..
  - make
  - cd ..
  - cmake --build build --target test