1FROM debian:testing-slim 2 3RUN apt-get update && apt-get install -y autoconf automake gcc clang \ 4 libtool libtool-bin make pkg-config libcunit1-dev libssl-dev \ 5 libgnutls28-dev libmbedtls-dev exuberant-ctags git valgrind \ 6 graphviz doxygen libxml2-utils xsltproc docbook-xml docbook-xsl asciidoc 7RUN apt-get clean 8