1 2CFLAGS += -I . 3 4kernel_common_subdirs:= math 5 6ECHO: 7 @echo "$@" 8 9$(kernel_common_subdirs): ECHO 10 11 $(MAKE) -C $@ all CFLAGS="$(CFLAGS)" ASFLAGS="$(ASFLAGS)" 12 13all: $(kernel_common_subdirs) 14 15