before_script:
- - sudo add-apt-repository ppa:terry.guo/gcc-arm-embedded
+ - sudo add-apt-repository -y ppa:terry.guo/gcc-arm-embedded
- sudo apt-get update -qq
- - sudo apt-get install -y gcc-arm-none-eabi
+ - sudo apt-get install -y --force-yes gcc-arm-none-eabi
script: make