CT_LOCAL_TARBALLS_DIR="${HOME}/src" CT_LOG_EXTRA=y CT_ARCH_CPU="cortex-a53" CT_ARCH_64=y CT_ARCH_arm=y CT_TARGET_VENDOR="rpi3" CT_KERNEL_linux=y CT_BINUTILS_LINKER_LD_GOLD=y CT_BINUTILS_GOLD_THREADS=y CT_BINUTILS_LD_WRAPPER=y CT_BINUTILS_PLUGINS=y CT_CC_LANG_CXX=y CT_DEBUG_gdb=y CT_GDB_CROSS_EXTRA_CONFIG_ARRAY="--with-expat"