I'm getting this compile error on ubuntu 14.04.1

obj/walletdb.o: In function `copy_file':
/usr/local/include/boost/filesystem/operations.hpp:497: undefined reference to `boost::filesystem::detail::copy_file(boost::filesystem::path const&, boost::filesystem::path const&, boost::filesystem::detail::copy_option, boost::system::error_code*)'
collect2: error: ld returned 1 exit status
make: *** [eagsd] Error 1

There's no doc folder and no discernible documentation for this coin.
Please advise.