all: grub grub-dev multiboot grub: $(MAKE) -f grub-Makefile grub-dev: $(MAKE) -f grub-dev-Makefile multiboot: $(MAKE) -f multiboot-Makefile .PHONY: clean clean: $(MAKE) clean -f grub-Makefile $(MAKE) clean -f grub-dev-Makefile $(MAKE) clean -f multiboot-Makefile .PHONY: dist-clean dist-clean: clean rm -rf tmp