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VS2015 Update 3: Unresolved external symbol: ... boost::get_pointer<..EntityManager..> ... and ... boost::get_pointer<..EventManager..> ...

I recently updated VS2015 to Update 3, and it seems Boost is now giving this error when trying to compile entityx_python:

Creating library C:/Users/Stephen/OneDrive/Projects/github/entityx_python/build/Debug/PythonSystem_test.lib and object C:/Users/Stephen/OneDrive/Projects/github/entityx_python/build/Debug/PythonSystem_test.exp
4>entityx_python-d.lib(PythonSystem.obj) : error LNK2019: unresolved external symbol "class entityx::EntityManager const volatile * __cdecl boost::get_pointer<class entityx::EntityManager const volatile >(class entityx::EntityManager const volatile *)" (??$get_pointer@$$CDVEntityManager@entityx@@@boost@@YAPDVEntityManager@entityx@@PDV12@@Z) referenced in function "private: static struct _typeobject * __cdecl boost::python::objects::make_ptr_instance<class entityx::EntityManager,struct boost::python::objects::pointer_holder<class entityx::EntityManager *,class entityx::EntityManager> >::get_derived_class_object<class entityx::EntityManager>(struct boost::mpl::bool_<1>,class entityx::EntityManager const volatile *)" (??$get_derived_class_object@VEntityManager@entityx@@@?$make_ptr_instance@VEntityManager@entityx@@U?$pointer_holder@PAVEntityManager@entityx@@V12@@objects@python@boost@@@objects@python@boost@@CAPAU_typeobject@@U?$bool_@$00@mpl@3@PDVEntityManager@entityx@@@Z)

Likewise, making ~EntityManager() and ~EventManager() non-virutal seems to solve this issue.

My google-fu seems to only crop up this question on stackoverflow as most relevant: http://stackoverflow.com/questions/2052224/virtual-destructor-for-boostnoncopyable-classes

Any ideas here?

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