anchor.diff:  ENV VERSION=3.6
   
   RUN apt-get update && \
  -apt-get install -y --no-install-recommends autoconf automake gettext gcc git libtool make dpkg-dev \
  -libglib2.0-dev libotr5-dev libpurple-dev libgnutls28-dev \
  -libjson-glib-dev libprotobuf-c-dev protobuf-c-compiler \
  -mercurial libgcrypt20 libgcrypt20-dev \
  -libmarkdown2-dev libwebp-dev libtool-bin && \
  +apt-get install -y --no-install-recommends autoconf automake build-essential gettext gcc git libtool make mercurial \
  +libglib2.0-dev libhttp-parser-dev libotr5-dev libpurple-dev libgnutls28-dev \
  +libjson-glib-dev libpng-dev libolm-dev libprotobuf-c-dev protobuf-c-compiler \
  +libgcrypt20-dev libmarkdown2-dev libpurple-dev libsqlite3-dev libwebp-dev libtool-bin && \
   cd && \
   curl -LO# https://get.bitlbee.org/src/bitlbee-$VERSION.tar.gz && \
   curl -LO# https://github.com/EionRobb/skype4pidgin/archive/1.5.tar.gz && \
  
positive.code: curl -LO# https://github.com/sm00th/bitlbee-discord/archive/0.4.2.tar.gz && \
  git clone https://github.com/dylex/slack-libpurple.git && \
  git clone https://github.com/jgeboski/bitlbee-steam.git && \
  # build bitlbee
  tar zxvf bitlbee-$VERSION.tar.gz && \
  cd bitlbee-$VERSION && \
  
negative.code: rm -fr bitlbee-discord-0.4.2/ 0.4.2.tar.gz && \
  rm -fr slack-libpurple && \
  rm -fr bitlbee-steam && \
  rm -fr purple-matrix && \
  # add user bitlbee
  adduser --system --home /var/lib/bitlbee --disabled-password --disabled-login --shell /usr/sbin/nologin bitlbee && \
  touch /var/run/bitlbee.pid && chown bitlbee:nogroup /var/run/bitlbee.pid
  