FROM debian:11.0

RUN \
	apt-get update && \
	DEBIAN_FRONTEND=noninteractive apt-get -y dist-upgrade && \
	DEBIAN_FRONTEND=noninteractive apt-get -y install \
		make gcc g++ xz-utils lzip \
		libmpc-dev libmpfr-dev libgmp-dev zlib1g-dev \
		python3-minimal gawk bison rsync \
		bzip2 flex libssl-dev bc libcap2-bin strace \
		&& \
	apt-get clean

RUN mkdir /opt/sysroot

RUN mkdir /build
RUN useradd -U -u 1000 -d /build -M build
RUN chown build:build /build

USER build
WORKDIR /build