anchor.diff:  
   FROM builder AS kvazaar
   COPY --from=kvazaar_download /tmp/kvazaar/ /tmp/kvazaar/
  -RUN \
  -  cd kvazaar && \
  -  ./autogen.sh && ./configure --disable-shared --enable-static && \
  +WORKDIR /tmp/kvazaar
  +RUN \
  +  ./autogen.sh && \
  +  ./configure --disable-shared --enable-static && \
     make -j$(nproc) install
   
   FROM download AS libmodplug_download
  
positive.code: 
  FROM builder AS x265
  COPY --from=x265_download /tmp/x265/ /tmp/x265/
  # -w-macro-params-legacy to not log lots of asm warnings
  # https://bitbucket.org/multicoreware/x265_git/issues/559/warnings-when-assembling-with-nasm-215
  # TODO: remove 'sed' hack when upstream (x265) fixes the issue and adds '-DPIC' to ARM_ARGS
  
negative.code: 
  FROM builder AS rav1e
  COPY --from=rav1e_download /tmp/rav1e/ /tmp/rav1e/
  WORKDIR /tmp/rav1e
  RUN apk add --no-cache \
    rust cargo
  # debug builds a bit faster and we don't care about runtime speed
  RUN cargo install --debug --version 0.9.5 cargo-c
  RUN \
    cargo cinstall --release
  # cargo-c/alpine rustc results in Libs.private depend on gcc_s
  # https://gitlab.alpinelinux.org/alpine/aports/-/issues/11806
  