machine:
  environment:
    PATH: "/home/ubuntu/cmake-3.11.0-Linux-x86_64/bin:$PATH"

dependencies:
  cache_directories:
    - ~/cmake-3.11.0-Linux-x86_64
  pre:
    - sudo apt-get update
    - sudo apt-get remove llvm-3.0
    - sudo apt-get install llvm-3.9 libclang1-3.9 llvm-3.9-dev
  override:
    - >
      if [ ! -d ~/cmake-3.11.0-Linux-x86_64 ]; then
        echo "No cache - building CMake"
        cd ~ && wget --quiet https://cmake.org/files/v3.11/cmake-3.11.0-Linux-x86_64.tar.gz && tar -xvf cmake-3.11.0-Linux-x86_64.tar.gz
      else
        echo "Cached CMake found"
        ls -Ahl ~/cmake-3.11.0-Linux-x86_64
      fi
    - cd build && cmake -DCMAKE_BUILD_TYPE=Debug .. && make -j