This trivial example, similar to the examples in the Boost.Python documentation, compiled with 1.58 but doesn't with 1.59 (using various versions of GCC and Clang):

#include <boost/python.hpp>

struct X { int y; };

int main()
{
  boost::python::make_setter(&X::y);
}

The relevant error is:

/usr/local/boost-1.59.0/include/boost/python/data_members.hpp:303:15: note: candidate: boost::python::api::object boost::python::make_setter(D&) [with D = int X::*] <near match>

    inline object make_setter(D& x)
                  ^

/usr/local/boost-1.59.0/include/boost/python/data_members.hpp:303:15: note: conversion of argument 1 would be ill-formed:

prog.cc:7:37: error: invalid initialization of non-const reference of type 'int X::*&' from an rvalue of type 'int X::*'

     boost::python::make_setter(&X::y);
                                     ^