Thread: Simple problem with header file ..

Hi, been some time since I programmed in c, so I'm sitting and coding some but I can't seem to understand what I do wrong ... my code:

foo.h:

Code:

#ifndef FOO_H_
#define FOO_H_

extern int getage(char *name);

#endif

foo.c:

Code:

#include "foo.h"

int getage(char *name);

int getage(char *name){
	return 10;
}

wibble.c:

Code:

#include "foo.h"
#include <stdio.h>

int main(){
	printf("Fred's age: %d\n", getage("Fred"));
	return 0;
}

When I compile: gcc wibble.c -o wibble I get:

/tmp/ccWbHHtl.o: In function `main':
wibble.c.text+0xa): undefined reference to `getage'
collect2: ld returned 1 exit status

What am I doing wrong?

thanks.

D'OH!

thanks m8.