FROM scratch AS base
ENV VERSION=3.1
ENV SRC_HASH=588546b945bba4b70b6a3a616e80b4ab466e3f33024a352fc2198112cdbb3ae2
ENV SRC_FILE=gperf-${VERSION}.tar.gz
ENV SRC_SITE=http://ftp.gnu.org/pub/gnu/gperf/${SRC_FILE}

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

FROM fetch AS build
COPY --from=stagex/busybox . /
COPY --from=stagex/binutils . /
COPY --from=stagex/musl . /

COPY --from=stagex/make . /
COPY --from=stagex/gcc . /

RUN --network=none tar -xf ${SRC_FILE}
WORKDIR gperf-${VERSION}
RUN --network=none <<EOF
set -eux
./configure
make -j "$(nproc)"
EOF

FROM build AS install
RUN --network=none DESTDIR=/rootfs make install
RUN --network=none find /rootfs -exec touch -hcd "@0" "{}" +

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