C Code in Xcode

I have successfully implemented C Code in Apple Xcode IDE, and have created a basic View to display the Results text file which is created by the C Code...
How ever, I do need some help now...
The issue:

Both my C code, and Cocoa code begin by pointing to main()...
These are in conflict.
I can get the C code and Cocoa Code to compile and run OK, provided I comment out the other.

So, how do I integrate my C code into the Xcode environment, and create links to Views, for data entry, and for output presentation?

I have been browsing a manuals, documents, and tutorials on Xcode, but so far have not been able to sort out what I thought would be a relatively simple issue...

Thanks...

Code:

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int main()                                  /* the beginning of my C code */

int main(int argc, char *argv[])    /* the beginning of the Xcode main.m */

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I'm sure some here will help you but I'm thinking you'll probably get better answers in an XCode forum.

Well you can't have two mains for one thing! One main per executable. You need to create libraries which are then used by the Cocoa application. See here