language: c os: - linux compiler: - gcc - clang before_install: - if [ $TRAVIS_OS_NAME == linux ]; then sudo add-apt-repository -y ppa:pyglfw/pyglfw && sudo apt-get update -qq && sudo apt-get install -y --no-install-recommends libglfw3 libglfw3-dev libglew-dev; fi script: - make -C demo/glfw_opengl3 - make -C demo/glfw_opengl2