Requester connext rti

Hi

when i am trying to create object of Requester class in c++ on linux i got multiple problems which are defined below

1. undefined reference to `DDS_Duration_t::operator-(DDS_Duration_t const&) const'

2.undefined reference to `DDS_Duration_t::operator==(DDS_Duration_t const&) const'

Requester<Foo, Bar> * requester;
requester = new Requester<Foo, Bar>(participant, "TestService");

The complete program is as follows

#include "ndds/ndds_requestreply_cpp.h"
#include <iostream>
#include "idl/Primes.h"
#include "idl/PrimesSupport.h"
#include "idl/PrimesPlugin.h"
#include "ndds/ndds_namespace_cpp.h"
using namespace connext;

int main()
{
DDS::WaitSet ws;
int domain_id = 1;

// Create a DomainParticipant

DDS::DomainParticipant * participant =
DDS::DomainParticipantFactory::get_instance()->create_participant(
domain_id, DDS::PARTICIPANT_QOS_DEFAULT,
NULL, DDS::STATUS_MASK_NONE);

if (participant == NULL)
{
std::cout<<"participant not created"<<std::endl;
}
else
{
std::cout<<"participant created"<<std::endl;

// Create a Requester

Requester<Foo, Bar> * requester;
requester = new Requester<Foo, Bar>(participant, "TestService");

// Send request

WriteSample<Foo> request;
strcpy(request.data().message, "A Request");
std::cout<<"data:: "<<request.data().message<<std::endl;
requester->send_request(request);
// Create a reply Sample
Sample<Bar> reply;

// Receive reply (wait for it and get the sample)

DDS_Duration_t MAX_WAIT;
MAX_WAIT.sec = 10;

bool received = requester->receive_reply(reply, MAX_WAIT);
if (received)
{
if(reply.info().valid_data)
{
std::cout << "Received reply: " << reply.data().message << std::endl;
}
else
{
std::cout << "Received invalid reply" << std::endl;
}
}
else
{
std::cout << "Reply not received" << std::endl;
}
}
}

Thanks

Bhawna Popli