problem with compiling code with oct.h and mpi code

[ortak]

I have a code which includes "octave.h", "oct.h" and "mpi.h". 

Here's my code :

#include<octave/oct.h>
#include<octave/octave.h>
#include<iostream>
#include <octave/parse.h>
#include "mpi.h"
using namespace std;

int main(int argc, char **argv)
{
 octave_value fff;
 int rank, size;
    MPI_Init( &argc, &argv );
    MPI_Comm_size( MPI_COMM_WORLD, &size );
    MPI_Comm_rank( MPI_COMM_WORLD, &rank );
        octave_value f_ret;
        if(rank==0){
                int a[2];
                a[0] = 1;
                a[1] = 1;
                f_ret = feval("sum", octave_value(a));
        }else if(rank == 1){
                int a[2];
                a[0] = 2;
                a[1] = 2;
                f_ret = feval("sum", octave_value(a));
        }
        
        int ans = f_ret.int_value();
    //printf( "Hello world from process %d of %d\n", rank, size );
    MPI_Finalize();
    return 0;
} 


When I try to compile code I take an error which starts with these lines :

/tmp/ccgEpTDE.o: In function `main':
dene.cc:(.text+0x8d): undefined reference to `octave_value::octave_value()'
dene.cc:(.text+0xce): undefined reference to `octave_value::octave_value()'
dene.cc:(.text+0x101): undefined reference to
`octave_value::octave_value(bool)'
dene.cc:(.text+0x157): undefined reference to `feval(std::basic_string<char,
std::char_traits<char>, std::allocator<char> > const&, octave_value_list
const&, int)'

I guess my errors is about linking but despite of reading some articles
about that topic i couldn't solve my problem. Any one have any ideas?? 
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