1ifndef CROSS_COMPILE 2uname_M := $(shell uname -m 2>/dev/null || echo not) 3ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/x86/ -e s/x86_64/x86/) 4 5ifeq ($(ARCH),x86) 6CC := $(CROSS_COMPILE)gcc 7PROGS := hpet_example 8 9all: $(PROGS) 10 11clean: 12 rm -fr $(PROGS) 13 14endif 15endif 16