FROM scratch as base
ARG ARCH=x86_64
ENV VERSION=1.07.1
ENV SRC_HASH=62adfca89b0a1c0164c2cdca59ca210c1d44c3ffc46daf9931cf4942664cb02a
ENV SRC_FILE=bc-${VERSION}.tar.gz
ENV SRC_SITE=https://ftp.gnu.org/gnu/bc/${SRC_FILE}

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

FROM fetch as build
#COPY --from=busybox . /
COPY --from=binutils . /
COPY --from=coreutils . /
COPY --from=musl . /
COPY --from=make . /
COPY --from=gcc . /
COPY --from=openssl . /
COPY --from=bash . /
COPY --from=bash /bin/bash /bin/sh
COPY --from=tar . /
COPY --from=ed . /
COPY --from=grep . /
COPY --from=gzip . /
COPY --from=bison . /
COPY --from=flex . /
COPY --from=gawk . /
COPY --from=perl . /
COPY --from=texinfo . /
COPY --from=findutils . /
COPY --from=sed . /
RUN tar -xf ${SRC_FILE}
WORKDIR bc-${VERSION}
RUN --network=none <<-EOF
	set -ex
    mkdir /tmp
	./configure \
		--build=${ARCH}-linux-musl \
		--host=${ARCH}-linux-musl \
		--prefix=/usr \
        --sysconfdir=/etc \
		--mandir=/usr/share/man \
        --infodir=/usr/share/info
	make -j1
EOF

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

FROM scratch as package
COPY --from=install /rootfs /