ARG OS_IMAGE="alpine:latest"

FROM "${OS_IMAGE}" AS build

RUN apk add autoconf automake build-base byacc expect gettext-dev git \
        libbsd-dev libeconf-dev libtool libxslt pkgconf

COPY ./ /usr/local/src/shadow/
WORKDIR /usr/local/src/shadow/

RUN ./autogen.sh --without-selinux --disable-man --disable-nls --with-yescrypt
RUN make -kj4 || true
RUN make
RUN make install

FROM scratch AS export
COPY --from=build /usr/local/src/shadow/config.log \
    /usr/local/src/shadow/config.h ./