export CARGO_TARGET_ARMV7_UNKNOWN_LINUX_GNUEABIHF_LINKER=arm-linux-gnueabihf-gcc
export CC_armv7_unknown_linux_gnueabihf=arm-linux-gnueabihf-gcc
export CXX_armv7_unknown_linux_gnueabihf=arm-linux-gnueabihf-g++
export RUSTFLAGS="-C target-feature=+crt-static"