Thread: please help with the Makefile

Hi All

I am a Ph.D student in Physics and a newbie in programing. I am running a code made by someone else and now I am stuck badly at a point.
I have a set of C codes [A1.c, A2.c, A3.c, A4.c].
A2.c, A3.c and A4.c have different tasks and A1.c is the main program which is calling the other 3 codes as and when required.
To compile all of them togtether, I have a Makefile which is :

Code:

LIBS= -lm 
CPATHS= -L /usr/local/lib
ALL : prog
prog :	A1.c
	cc $(CPATHS) -O4 -Wall -o prog A1.c A2.c A3.c A4.c $(LIBS) 
clean :
	rm prog

To compile and run, I do the following :

alice@alice-laptop:~$ make clean
alice@alice-laptop:~$ make
alice@alice-laptop:~$ ./prog value1 value2

But now I have identified some problem in A4.c and need to use a package, SUNDIALS package.
To run a single code, say equations.c, INDEPENDENTLY (i.e. not being compiled simultaneously with other codes) in SUNDIALS, I have to run a command :

alice@alice-laptop:~$ cc -I/usr/local/sundials/include equations.c -L/usr/local/sundials/lib -lsundials_cvode -lsundials_nvecserial -lm

But now I have to run A4.c using SUNDIALS, along with the other codes (i.e. A1.c A2.c A3.c), as I was doing earlier.

What modifications should I make in my Makefile so that A1.c A2.c A3.c A4.c are all compiled together, as it was being done earlier, but A4.c can also use the package SUNDIALS ??


Please help.
Regards
Alice

Thanx brewbuck,

What u said has worked.

Thanks a lot. This forum is great.

Alice