anchor.diff:      libstdc++-dev \
       libtool \
       make \
  -    perl-modules \
       pkgconfig \
  -    python-modules \
       python3-modules \
       python3-pydoc \
   "
  
positive.code:     libpostproc \
      libswresample \
      libswscale \
      alsa-conf \
      alsa-utils \
      alsa-utils-scripts \
  
negative.code: "
  
  ALSA += " \
      libavcodec \
      libavdevice \
      libavfilter \
  