x86_64: undefined reference to `typeinfo for __int128'

[Ryszard Kabatek]

Hello,
a compilation of the code below succeeds, but the linking fails with the 
message:
undefined reference to `typeinfo for __int128'
Tested with (I got the same error with older versions of GCC):
gcc version 4.4.5 (Debian 4.4.5-8)

Regards,
RK

// x.cxx
#include <iostream>
#include <typeinfo>

using namespace std;

int main()
{
  cout << typeid(__int128_t).name() << endl;

  return 0;
}