ifndef CROSS_COMPILE uname_M := $(shell uname -m 2>/dev/null || echo not) ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/x86/ -e s/x86_64/x86/) ifeq ($(ARCH),x86) CC := $(CROSS_COMPILE)gcc PROGS := hpet_example all: $(PROGS) clean: rm -fr $(PROGS) endif endif