FROM ubuntu:17.10 RUN apt-get update && apt-get install -y --no-install-recommends \ gcc make libc6-dev git curl ca-certificates \ gcc-arm-linux-gnueabihf qemu-user RUN curl --retry 5 https://www.musl-libc.org/releases/musl-1.1.19.tar.gz | tar xzf - WORKDIR /musl-1.1.19 RUN CC=arm-linux-gnueabihf-gcc \ CFLAGS="-march=armv6 -marm -mfpu=vfp" \ ./configure --prefix=/musl-arm --enable-wrapper=yes RUN make install -j4 # Install linux kernel headers sanitized for use with musl RUN curl --retry 5 -L https://github.com/sabotage-linux/kernel-headers/archive/v3.12.6-6.tar.gz | \ tar xzf - && \ cd kernel-headers-3.12.6-6 && \ make ARCH=arm prefix=/musl-arm install -j4 && \ cd .. && \ rm -rf kernel-headers-3.12.6-6 ENV PATH=$PATH:/musl-arm/bin:/rust/bin \ CC_arm_unknown_linux_musleabihf=musl-gcc \ CARGO_TARGET_ARM_UNKNOWN_LINUX_MUSLEABIHF_LINKER=musl-gcc \ CARGO_TARGET_ARM_UNKNOWN_LINUX_MUSLEABIHF_RUNNER="qemu-arm -L /musl-arm"