include $(MK)/prologue.mk
SRC_$(d) := ref.c
SRC_$(d) := $(addprefix $(d)/, $(SRC_$(d)))
OBJ_$(d) := $(SRC_$(d):.c=.o)
$(OBJ_$(d)): %.o: %.c
$(COMP)
# append all OBJECTS to clean
OBJ := $(OBJ) $(OBJ_$(d))
include $(MK)/epilogue.mk