RUN apt-get update && apt-get -y install wget RUN echo deb http://llvm.org/apt/wily/ llvm-toolchain-wily-3.8 main >> /etc/apt/sources.list RUN echo deb-src http://llvm.org/apt/wily/ llvm-toolchain-wily-3.8 main >> /etc/apt/sources.list RUN wget -O - http://llvm.org/apt/llvm-snapshot.gpg.key| apt-key add - RUN apt-get update && apt-get -y install clang-format-3.8