Answer by Jonatan Goebel for more advanced makefile (part 2)

Have you tried to put another pastsub into the %.o: %.c command:

Something like this:

%.o: %.c    arm-none-eabi-gcc $(CFLAGS) $(INCDIRS) -MMD -MP -MF"$(patsubst %.c,$(OBJSDIR)/%.d,@)" -MT"$@" -c -o "$@""$<"