Intel compiler ICE with CGAL::Circular_kernel_2 and boost::variant

intel_circular_kernel_variant_bug.cpp

#include <CGAL/Cartesian.h>
#include <CGAL/Algebraic_kernel_for_circles_2_2.h>
#include <CGAL/Circular_kernel_2.h>


int main()
{
  typedef CGAL::Quotient<int>                       NT1;
  typedef CGAL::Cartesian<NT1>                                 Linear_k1;
  typedef CGAL::Algebraic_kernel_for_circles_2_2<NT1>          Algebraic_k1;
  typedef CGAL::Circular_kernel_2<Linear_k1,Algebraic_k1>      CK1;

  
  CK1::Circular_arc_2 arc;
  CK1::Circular_arc_point_2 poi;

  
  boost::variant<CK1::Circular_arc_2,
		 CK1::Circular_arc_point_2
		 // , int
  		  > var(arc);
 
  return 0;
}

It compiles when there is the int.
When you remove it you get:
/usr/include/boost/type_traits/has_nothrow_copy.hpp(36): internal error: bad pointer
template struct has_nothrow_copy_constructor : public integral_constant<bool, BOOST_HAS_NOTHROW_COPY(T)>{};