# variables
DEPEND_CFLAGS   += -D__MAKEDEPEND__
DEPEND_CPPFLAGS += -D__MAKEDEPEND__
DEPEND_MK       += $(addprefix .,$(addsuffix .dep.mk, $(OBJ)))

# mandatory target behaviour
all:

ifneq ($(DEPEND_MK),)
  ifeq ($(MAKECMDGOALS),)
  -include $(DEPEND_MK)
  endif
  ifneq ($(filter all,$(MAKECMDGOALS)),)
  -include $(DEPEND_MK)
  endif
endif

clean: depclean my_depclean

# convenience targets
dep: $(DEPEND_MK)
my_depclean:
	rm -f .*.dep.mk

# rules
$(DEPEND_MK): $(PREREQ_DONE)
%.o: .%.o.dep.mk