# call all makefiles in sudirs
DIRS = set1 set2 set3

compile:
	@for i in $(DIRS); do \
		echo "Compiling $$i:"; \
		make -s -C $$i ;\
	done

clean:
	@for i in $(DIRS); do \
		echo "Cleaning $$i:"; \
		make -s -C $$i clean;\
	done