FROM scratch AS base
ARG ARCH=x86_64
ENV VERSION=2.6.2
ENV SRC_HASH=d4cf38d26e21a56654ffe4acd9cd5481164619626802328506a2869afab29ab3
ENV SRC_FILE=expat-${VERSION}.tar.gz
ENV SRC_SITE=https://github.com/libexpat/libexpat/releases/download/R_2_6_2/${SRC_FILE}

FROM base AS fetch
ADD --checksum=sha256:${SRC_HASH} ${SRC_SITE} ${SRC_FILE}

FROM fetch AS build
COPY --from=stagex/busybox . /
COPY --from=stagex/musl . /
COPY --from=stagex/gcc . /
COPY --from=stagex/binutils . /
COPY --from=stagex/make . /
RUN tar -xf $SRC_FILE
WORKDIR expat-${VERSION}
RUN --network=none <<-EOF
	set -eux
	./configure \
		--build=${ARCH}-linux-musl \
		--host=${ARCH}-linux-musl \
		--prefix=/usr \
		--mandir=/usr/share/man \
		--enable-static
	make -j "$(nproc)"
EOF

FROM build AS install
RUN make DESTDIR=/rootfs install
RUN find /rootfs -exec touch -hcd "@0" "{}" +

FROM stagex/filesystem AS package
COPY --from=install /rootfs/. /