FROM 0ad-gcc7:latest USER root ARG DEBIAN_FRONTEND=noninteractive ARG DEBCONF_NOWARNINGS="yes" RUN apt-get install -qqy graphviz doxygen xsltproc lcov --no-install-recommends RUN update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-7 7 --slave /usr/bin/g++ g++ /usr/bin/g++-7 --slave /usr/bin/gcov gcov /usr/bin/gcov-7 USER builder