boost multiprecision does not work c++ builder community 64 bit version

Question

I have c++ builder community version 10.4. Boost multiprecision works fine for Win32 compiles, but does not compile for Win64, giving link errors. c++builder is using version 1.70 of boost.

[ilink64 Error] Error: Unresolved external '__udivti3' referenced from C:\USERS\DAVID\LOCAL_DEVEL\BOOST_TEST\WIN64\DEBUG\FILE1.O [ilink64 Error] Error: Unresolved external '__umodti3' referenced from C:\USERS\DAVID\LOCAL_DEVEL\BOOST_TEST\WIN64\DEBUG\FILE1.O

Has anyone seen this, and has a solution? Example with some standard #includes deleted.

//---------------------------------------------------------------------------
#include <boost/multiprecision/cpp_int.hpp>
#include <boost/multiprecision/cpp_bin_float.hpp>
#include <boost/rational.hpp>

using namespace std;
using namespace boost::multiprecision;
using boost::rational;



typedef boost::rational<cpp_int> t_prob;
int main (int argc, char *argv [])
{   t_prob a,b,c;

        a = 4;
//      a /= 6;
        b = 13;
//      b /= 7;
        c = a * b;
    std::cout << c << "\n";

}