CROSS_COMPILE ?= arm-none-eabi CC=$(CROSS_COMPILE)-gcc LD=$(CROSS_COMPILE)-ld AR=$(CROSS_COMPILE)-ar AS=$(CROSS_COMPILE)-as STRINGS=$(CROSS_COMPILE)-strings STRIP=$(CROSS_COMPILE)-strip OBJCOPY=$(CROSS_COMPILE)-objcopy OBJDUMP=$(CROSS_COMPILE)-objdump LDFLAGS=-nostdlib ALL=main main: main.o sysinit.o main.o: main.c sysinit.o: sysinit.c