MakeFile Issue

[Parikshat Dubey]

Hi all!

i am writing  makefile for whole project.I am stuck with one problem.I hope 
i will get some assistance from you as i got it before also.The problem goes 
like this:

I have toplevel folder project which contains 20 
subdirectories(modules).Project Folder also contains Makefilke  which will 
use all the source files and headers in each of the subdirectory or module 
to produce object files and then integrating all these object files to 
produce final target or exe.each module contains source files and header 
files respective to that module.The problem which i was getting is to how i 
mention the source files and header files containing in subdirectory 1  or 
for that matter in subdirectory 2 and so on in toplevel directory.

Note1: I donot want to create a makefile for each module.Instead i want to 
make only one Makefile which will take all the source files and header files 
from the respective modules.

Note2: I want to know how i can mention in top level makefile the source 
files from subdirectory1 or subdirectory 2 so as it can take source files 
from the respective subdirectories and produce respective targets obviously 
objectfiles. and how i can mention the object files from the respective 
folders if it produces so.

Project Folder contains
a)20 subdirectories(modules)Each subdirectory is a module and contains 
source and header files pretaining to that module.The source file in all 
these modules doesnot contain main function.There is only one main function 
in main.c which is containing in top level folder project.
b)MakeFile
c)main.c which contains main() function


Thanks & Regards
Parikshat Dubey

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