Czterokrotna precyzja w G ++ 4.6.3 Linux za pomocą quadmath

Próbuję wykonać kod

#include <quadmath.h>
#include <iostream>
int main()
{
  char* y = new char[1000];
  quadmath_snprintf(y, 1000, "%Qf", 1.0q);
  std::cout << y << std::endl;
  return 0;
}

z poleceniami

g++ test.cpp -o test

Dostaję błąd:

/tmp/cctqto7E.o: In function `main':
test.cpp:(.text+0x51): undefined reference to `quadmath_snprintf(char*, unsigned int, char const*, ...)'
collect2: ld returned 1 exit status

Wersja jest:

g++ --version
g++ (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3
Copyright (C) 2011 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Jak mogę rozwiązać problem?

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