Dockerfile

RUN echo "deb-src http://httpredir.debian.org/debian/ sid main contrib non-free" \
  >> /etc/apt/sources.list.d/sources.list \
  echo "deb http://ftp.debian.org/debian jessie-backports main" \
  >> /etc/apt/sources.list.d/sources.list \
  && apt-get update \
  && apt-get install -y build-essential \
  && mkdir -p /tmp/gm-build \
  && cd /tmp/gm-build \
  && apt-get build-dep -y graphicsmagick \
  && apt-get -b source graphicsmagick \
  && dpkg -i libgraphicsmagick-q16-3_1.3.25-5_amd64.deb \
  && dpkg -i graphicsmagick_1.3.25-5_amd64.deb