I think I had this problem too a long time ago. I fixed that in \include\boost\boost\program_options\variables_map.hpp. Here is the standard Unix diff for that file. 128c128 < friend void store(const basic_parsed_options<char>& options, ---

friend void BOOST_PROGRAM_OPTIONS_DECL store(const basic_parsed_options<char>& options,

-- Check if it works this way for you. Kind regards, Andrei LIHU -------------------- C++ Software Developer +40742545392