anchor.diff:    wget $WGET_OPTS -O libvpx.tar.gz "$VPX_URL" && \
     echo "$VPX_SHA256  libvpx.tar.gz" | sha256sum --status -c - && \
     mkdir libvpx && \
  -  tar xf libvpx.tar.gz -C libvpx --strip-components=1
  +  tar xf libvpx.tar.gz -C libvpx --strip-components=1 && \
  +  rm libvpx.tar.gz
   
   FROM builder AS libvpx
   COPY --from=libvpx_download /tmp/libvpx/ /tmp/libvpx/
  
positive.code:   wget $WGET_OPTS -O libtheora.tar.bz2 "$THEORA_URL" && \
    echo "$THEORA_SHA256  libtheora.tar.bz2" | sha256sum --status -c - && \
    mkdir theora && \
    tar xf libtheora.tar.bz2 -C theora --strip-components=1
  
  FROM builder AS theora
  COPY --from=theora_download /tmp/theora/ /tmp/theora/
  
negative.code:   wget $WGET_OPTS -O libxvid.tar.gz "$XVID_URL" && \
    echo "$XVID_SHA256  libxvid.tar.gz" | sha256sum --status -c - && \
    mkdir xvid && \
    tar xf libxvid.tar.gz -C xvid --strip-components=1 && \
    rm libxvid.tar.gz
  
  FROM builder AS xvid
  COPY --from=xvid_download /tmp/xvid/ /tmp/xvid/
  