include directory

[Vad N]

Hello

 

I have a problem.

 

My makefile is:

----------------

 

depend : main.c

             $(CC) -M $(CPPFLAGS) $^ > $@

 

include depend

------------------

 

I type in command line:

 

>>make -f myMakefile

cc -M main.c > depend

make: 'depend' is up to date.

 

I assumed that above make produce main.o, but it did. why?

 

If I now the include directive add the dependencies of main.c to make file and

according to implicit rule( %.o : %.c ) make must produce main.o. I am right?