## Main.cc

#include "stack.h"

using namespace std;

int main(int argc, char* args[] )
{
     Stack<int> myStack;
}

## Stack.h

using namespace std;

template <typename T>
class Stack {
     public:
          Stack();
};

## Stack.cc

#include "stack.h"

using namespace std;

template <typename T>
Stack<T>::Stack(){
}

## G++ Commands
g++ -c main.cc
g++ -c stack.cc
g++ -o program main.o stack.o
main.o: In function `main':
main.cc: (.text+0x194): undefined reference to `Stack<int>::Stack()'
collect2: ld returned 1 exit status
make: *** [program] Error 1