anchor.diff:    fontconfig-dev fontconfig-static \
     frei0r-plugins-dev \
     vo-amrwbenc-dev vo-amrwbenc-static \
  -  ladspa-dev
  +  ladspa-dev \
  +  libcaca-dev libcaca-static
   
   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
  
positive.code:   --enable-libaribb24 \
    --enable-libass \
    --enable-libbluray \
    --enable-libdav1d \
    --enable-libdavs2 \
    --enable-libfreetype \
  
negative.code:   FONTCONFIG_VERSION=$(pkg-config --modversion fontconfig)  \
    FREETYPE_VERSION=$(pkg-config --modversion freetype2)  \
    FRIBIDI_VERSION=$(pkg-config --modversion fribidi)  \
    LIBCACA_VERSION=$(pkg-config --modversion caca) \
    LIBSAMPLERATE_VERSION=$(pkg-config --modversion samplerate) \
    LIBXML2_VERSION=$(pkg-config --modversion libxml-2.0) \
    SOXR_VERSION=$(pkg-config --modversion soxr) \
  