FROM alpine
RUN apk update && apk add \
	make \
	gcc \
	musl-dev \
	wget
COPY --from=libopenssl:3.1.1-minimal /opt/spm/openssl-3.1.1/ /usr/local/
RUN wget https://causal.agency/libretls/libretls-3.8.1.tar.gz
RUN tar -xf libretls-3.8.1.tar.gz
WORKDIR /libretls-3.8.1
ARG PREFIX=/opt/spm/libretls-3.8.1
RUN ./configure \
    --prefix=$PREFIX \
    --enable-shared=no \
    CFLAGS='-ffunction-sections -fdata-sections -Os'
RUN make -j$(nproc --all)
RUN make install
