Compile luabind-0.9.1 error C2665: ' Boost::operator = = ': None of the 4 overloads could convert all the argument types solution

The final error location is:

#define  LUABIND_OPERATOR_ADL_WKND (OP)  \
  inline bool operator op (  \
      basic_iterator<basic_access> const& x  \
    , basic_iterator<basic_access> const& y)  \
  { \
      return boost::operator op (x, y);  \
  } \
 \
  inline bool operator op ( \
      basic_iterator<raw_access> const& x \
     , basic_iterator<raw_access> const& y)  \
  {  \
      return boost::operator op (x, y);  \
  }
//Error points to the following two lines
  luabind_operator_adl_wknd (= =)
  luabind_operator_adl_ WKND (! =)

I use luabind-0.9.0, boost_1_58, vc120 will also appear the above situation;
After the transformation to boost_1_54, vc110, finally the compilation succeeded

Compile luabind-0.9.1 error C2665: ' Boost::operator = = ': None of the 4 overloads could convert all the argument types solution