Linker does not see template function defined in a base (pure virtual) class

Here's the code:

class PureDummy
{
    public:
        virtual void foo() = 0;
        template<class T>
        void bar();
};

class Dummy : public PureDummy
{
    public:
        virtual void foo() 
        {

        }
        template<class T>
        void bar()
        {

        }
};

int main(int argc, char **argv)
{
    PureDummy *pdummy = new Dummy();
    pdummy->foo(); //OK
    //pdummy->bar<int>();  //undefined reference to `void PureDummy::bar<int>()'
}

So as a comment states, with a call to bar compilation fails.

1. 
   

   Why does the template function exhibit different behavior from a "regular" foo function?

   
   


2. 
   

   Is it possible to "point" that there's an implementation in the derived class?