FROM scratch AS base
ARG ARCH=x86_64
ENV VERSION=1.23.0
ENV SRC_HASH=6b9757f592b7518b4902eb6af7e54570bdccba37a871fddb2d30ae3863511c13
ENV SRC_FILE=groff-${VERSION}.tar.gz
ENV SRC_SITE=https://ftp.gnu.org/gnu/groff/${SRC_FILE}

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

FROM fetch AS build
COPY --from=stagex/perl . /
COPY --from=stagex/m4 . /
COPY --from=stagex/busybox . /
COPY --from=stagex/musl . /
COPY --from=stagex/gcc . /
COPY --from=stagex/binutils . /
COPY --from=stagex/make . /
RUN tar -xf $SRC_FILE
WORKDIR groff-${VERSION}
ENV SOURCE_DATE_EPOCH=1
RUN --network=none <<-EOF
	set -eux
	./configure \
		--build=${ARCH}-linux-musl \
		--host=${ARCH}-linux-musl \
		--prefix=/usr \
		--without-x \
		--disable-rpath
	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/. /