ifndef GCCARMEMB_TOOLCHAIN_PATH $(error GCCARMEMB_TOOLCHAIN_PATH is not set) endif CROSS_COMPILE_TARGET_arm = arm-none-eabi CROSS_COMPILE_arm=${GCCARMEMB_TOOLCHAIN_PATH}/bin/${CROSS_COMPILE_TARGET_arm}- CROSS_COMPILE_arm_version ?= $(shell $(CROSS_COMPILE_arm)gcc -dumpversion) CROSS_COMPILE= $(CROSS_COMPILE_$(ARCH)) CROSS_COMPILE_TARGET = ${CROSS_COMPILE_TARGET_${ARCH}} CROSS_COMPILE_version = ${CROSS_COMPILE_${ARCH}_version} TOOLCHAIN_LIBS = gcc LIB_INCLUDE_DIR += -L ${GCCARMEMB_TOOLCHAIN_PATH}/lib/gcc/${CROSS_COMPILE_TARGET}/${CROSS_COMPILE_version}/ export CROSS_COMPILE TOOLCHAIN_LIBS LIB_INCLUDE_DIR