dist: trusty
sudo: required
language: cpp

matrix:
  include:
    - before_script: 
      - sudo add-apt-repository ppa:ubuntu-toolchain-r/test -y
      - sudo add-apt-repository ppa:fkrull/deadsnakes -y
      - sudo apt-get update -y
      - wget -O - http://llvm.org/apt/llvm-snapshot.gpg.key|sudo apt-key add -
      - echo "deb http://apt.llvm.org/trusty/ llvm-toolchain-trusty-5.0 main" | sudo tee -a /etc/apt/sources.list
      - sudo apt-get update -qq
      - travis_retry sudo apt-get install clang-5.0 libclang-5.0-dev libclang-common-5.0-dev libllvm5.0 llvm-5.0-dev llvm-5.0 llvm-5.0-runtime libclang1-5.0-dbg libllvm5.0-dbg lldb-5.0 -y
      - sudo apt-get install gcc-4.9 g++-4.9
      - sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.9 60 --slave /usr/bin/g++ g++ /usr/bin/g++-4.9
      - git submodule init
      - git submodule update
      script: 
        - make CXX=clang-5.0 LLVM_CONF=llvm-config-5.0
    - before_script: 
      - sudo add-apt-repository ppa:ubuntu-toolchain-r/test -y
      - sudo add-apt-repository ppa:fkrull/deadsnakes -y
      - sudo apt-get update -y
      - wget -O - http://llvm.org/apt/llvm-snapshot.gpg.key|sudo apt-key add -
      - echo "deb http://apt.llvm.org/trusty/ llvm-toolchain-trusty-6.0 main" | sudo tee -a /etc/apt/sources.list
      - sudo apt-get update -qq
      - travis_retry sudo apt-get install clang-6.0 libclang-6.0-dev libclang-common-6.0-dev libllvm6.0 llvm-6.0-dev llvm-6.0 llvm-6.0-runtime libclang1-6.0-dbg libllvm6.0-dbg lldb-6.0 -y
      - sudo apt-get install gcc-4.9 g++-4.9
      - sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.9 60 --slave /usr/bin/g++ g++ /usr/bin/g++-4.9
      - git submodule init
      - git submodule update
      script: 
        - make CXX=clang-6.0 LLVM_CONF=llvm-config-6.0
    - before_script: 
      - sudo add-apt-repository ppa:ubuntu-toolchain-r/test -y
      - sudo add-apt-repository ppa:fkrull/deadsnakes -y
      - sudo apt-get update -y
      - wget -O - http://llvm.org/apt/llvm-snapshot.gpg.key|sudo apt-key add -
      - echo "deb http://apt.llvm.org/trusty/ llvm-toolchain-trusty-8.0 main" | sudo tee -a /etc/apt/sources.list
      - sudo apt-get update -qq
      - travis_retry sudo apt-get install clang-8.0 libclang-8.0-dev libclang-common-8.0-dev libllvm8.0 llvm-8.0-dev llvm-8.0 llvm-8.0-runtime libclang1-8.0-dbg libllvm8.0-dbg lldb-8.0 -y
      - sudo apt-get install gcc-4.9 g++-4.9
      - sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.9 60 --slave /usr/bin/g++ g++ /usr/bin/g++-4.9
      - git submodule init
      - git submodule update
      script: 
        - make CXX=clang-8.0 LLVM_CONF=llvm-config-8.0