anchor.diff:      zlib1g-dev
   
   # Install build dependencies for 64-bit systems
  -RUN apt-get install -y --no-install-recommends\
  +RUN apt-get install -y --no-install-recommends \
       g++-multilib \
       gcc-multilib \
       lib32ncurses5-dev \
  
positive.code: # Environment variables defenition (do not rearrange!)
  ENV USER=$user
  ENV USER_HOME=/home/$USER
  ENV WORK_DIR=$USER_HOME/$work_dir
  ENV CCACHE_DIR=$WORK_DIR/.ccache
  ENV INIT_DIR=$WORK_DIR/$internal_dir
  
negative.code:       version=$version
  
  # Install commons build dependencies
  RUN apt-get update && apt-get install -y --no-install-recommends \
      apt-utils \
      bison \
      build-essential \
  