spec5.c

gcc-you can use this code to learn something about gcc, and inquire further into linux,

// Build don't link:

template <class T>
void f(T t1, T t2);

template <>
void f(int i, int j);

template <class T>
void g(T t1, T t2) {}

template void g(int i, int j);

void h()
{
  f(3, 'c'); // ERROR - no matching function
  g(3, 'c'); // ERROR - no matching function
}