Assembly file compilation issues - Error: undefined reference to 'function name'

I am trying to look at the test program my professor gave us, but I am having trouble compiling it. I am on Ubuntu 14.04. I am compiling it with

gcc -Wall test.c AssemblyFunction.S -m32 -o test

      

        
        
        
      

    

I was having trouble running the code on a 64 bit machine and read that adding -Wall and -m32 would make it work. This fixed the first problem I ran into, but now I get a link : undefined to `addnumbersinAssembly ' .

Here is the C file

#include <stdio.h>
#include <stdlib.h>

extern int addnumbersinAssembly(int, int);
int main(void)
{

    int a, b;
    int  res;

    a = 5;
    b = 6;


    // Call the assembly function to add the numbers
    res = addnumbersinAssembly(a,b);
    printf("\nThe sum as computed in assembly is : %d", res);

    return(0);
}

      

        
        
        
      

    

And here is the build file

.global _addnumbersinAssembly
_addnumbersinAssembly:
    pushl   %ebp
    movl    %esp,%ebp


    movl 8(%ebp), %eax
    addl 12(%ebp), %eax    # Add the args


    movl    %ebp,%esp
    popl    %ebp
    ret

      

        
        
        
      

    

Thank you for your time. I've been trying to figure this out for hours, so I appreciate any help.