C++ BOOST undefined reference to `boost::filesystem::detail::copy_file

Question

I have no clue why boost::filesystem::copy_file is making trouble for me.

undefined reference to `boost::filesystem::detail::copy_file

Answer 1

In older boost versions it is BOOST_NO_SCOPED_ENUMS, not BOOST_NO_CXX11_SCOPED_ENUMS

see boost::filesystem::copy_file() missing symbol in c++11