message: build: fix dockerfile
diff: @@ -5,12 +5,10 @@ MAINTAINER Bobby Powers <bobbypowers@gmail.com>
  RUN apt-get update && apt-get install -y \
  build-essential \
  git \
  - gcc-8 \
  - g++-8 \
  python3 \
  sudo \
  + libxml2 \
  && rm -rf /var/lib/apt/lists/* \
  - && update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-8 800 --slave /usr/bin/g++ g++ /usr/bin/g++-8 \
  && update-alternatives --install /usr/bin/python python /usr/bin/python3 10 \
  && rm -rf /usr/local/lib/python3.6
  @@ -20,11 +18,13 @@ COPY . .
  ENV PREFIX /usr/local
  -RUN support/install_all_configs PREFIX=/usr/local
  +RUN make test
  +
  +RUN support/install_all_configs
  FROM ubuntu:18.04
  -COPY --from=builder /usr/local/lib/libmesh* /usr/local/lib/
  +COPY --from=builder /usr/lib/libmesh* /usr/local/lib/
  RUN ldconfig
  