how should a file containing a class be called in the makefile?

[S8hvC542]

For example, I have three files:

main.cpp
myclass.h
myclass.cpp

-main.cpp #include's myclass.h

Below is the makefile. My problem is that if I change only myclass.cpp, the changes are not pulled in. What am I doing wrong in this build process?

Thanks.

CC=g++
LN=$(CC)


mainbin : main myclass.o
	@echo "a test of this stuff"
	@echo "compiling and linking the code"
	$(LN) -o mkfiletest main

main : mkfiletest.cpp
	$(CC) -Wall -c  mkfiletest.cpp

myclass.o : myclass.h myclass.cpp
	$(CC) -Wall -c myclass.h 
	$(CC) -Wall -c myclass.cpp 

[Disch]

I can't be of any help because I know little about makefiles. But if you want to go easy on yourself, you can just use an IDE. Then you don't have to worry about this crap.

[Moschops]

What happens if you change

main : mkfiletest.cpp

to

main : mkfiletest.o ?

Additionally, why are you compiling myclass.h ? If that header file is #include 'd in myclass.cpp, there's no need at all for you to be compiling it into an object file.


I'm not sure you need a lot of your makefile; what happens if you just have

mainbin : mkfiletest.o myclass.o ?

[S8hvC542]

If I just have that, make complains that it doesn't know how to create "mkfiletest.o" or "myclass.o".

[S8hvC542]

This tutorial explained it to me:

http://www.cs.umd.edu/class/fall2002/cmsc214/Tutorial/makefile.html

basically, my "main" from above should included a dependency on the h file of the included class.