anchor.diff:  
   FROM --platform=linux/amd64 base AS cross-true
   ARG DEBIAN_FRONTEND
  -RUN dpkg --add-architecture armhf
   RUN dpkg --add-architecture arm64
   RUN dpkg --add-architecture armel
  +RUN dpkg --add-architecture armhf
   RUN --mount=type=cache,sharing=locked,id=moby-cross-true-aptlib,target=/var/lib/apt \
       --mount=type=cache,sharing=locked,id=moby-cross-true-aptcache,target=/var/cache/apt \
           apt-get update && apt-get install -y --no-install-recommends \
  -        crossbuild-essential-armhf \
  -        crossbuild-essential-arm64 \
  -        crossbuild-essential-armel
  +            crossbuild-essential-arm64 \
  +            crossbuild-essential-armel \
  +            crossbuild-essential-armhf
   
   FROM cross-${CROSS} as dev-base
   
  
positive.code: RUN --mount=type=cache,sharing=locked,id=moby-criu-aptlib,target=/var/lib/apt \
      --mount=type=cache,sharing=locked,id=moby-criu-aptcache,target=/var/cache/apt \
          apt-get update && apt-get install -y --no-install-recommends \
              libnet-dev \
              libprotobuf-c-dev \
              libprotobuf-dev \
              libnl-3-dev \
              libcap-dev \
              protobuf-compiler \
              protobuf-c-compiler \
              python-protobuf
  
  # Install CRIU for checkpoint/restore support
  
negative.code: RUN --mount=type=cache,sharing=locked,id=moby-cross-true-aptlib,target=/var/lib/apt \
      --mount=type=cache,sharing=locked,id=moby-cross-true-aptcache,target=/var/cache/apt \
          apt-get update && apt-get install -y --no-install-recommends \
              libapparmor-dev:arm64 \
              libapparmor-dev:armel \
              libapparmor-dev:armhf \
              libseccomp-dev:arm64 \
              libseccomp-dev:armel \
              libseccomp-dev:armhf \
              # install this arches seccomp here due to compat issues with the v0 builder
              # This is as opposed to inheriting from runtime-dev-cross-false
              libapparmor-dev \
              libseccomp-dev
  
  FROM runtime-dev-cross-${CROSS} AS runtime-dev
  
  