anchor.diff:    --enable-libaribb24 \
     --enable-libass \
     --enable-libbluray \
  +  --enable-libcaca \
     --enable-libdav1d \
     --enable-libdavs2 \
     --enable-libfreetype \
  
positive.code:   fontconfig-dev fontconfig-static \
    frei0r-plugins-dev \
    vo-amrwbenc-dev vo-amrwbenc-static \
    ladspa-dev
  
  COPY --from=vmaf /usr/local/lib/pkgconfig/libvmaf.pc /usr/local/lib/pkgconfig/libvmaf.pc
  COPY --from=vmaf /usr/local/lib/libvmaf.a /usr/local/lib/libvmaf.a
  
negative.code:   libaribb24: env.LIBARIBB24_VERSION, \
    libass: env.LIBASS_VERSION, \
    libbluray: env.LIBBLURAY_VERSION, \
    libcaca: env.LIBCACA_VERSION, \
    libdav1d: env.DAV1D_VERSION, \
    libdavs2: env.DAVS2_VERSION, \
    libfreetype: env.FREETYPE_VERSION, \
  