DIRS=externals Utils Database

all: $(DIRS)

clean: clean-dirs

clean-dirs:
	for i in $(DIRS) ; do $(MAKE) -C $$i clean ; done

.PHONY: $(DIRS)

define DIR_template
$(1):
	$$(MAKE) -C $$@
endef

$(foreach dir, $(DIRS), $(eval $(call DIR_template, $(dir))))