libcurses.a: libcurses.a(underline_char.o)
libcurses.a(underline_char.o): $(OBJDIR)/underline_char.o
	@$(AR) $(ARFLAGS) $@ $(OBJDIR)/$%

$(OBJDIR)/underline_char.o: term/underline_char.c
	@echo "[CC] $@"
	@mkdir -p "$(@D)"
	@$(CC) -c -o $@ $(CFLAGS) term/underline_char.c