id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc 2506,program_options::arg undefined. Win DLL,Patrick White ,Vladimir Prus,"In Boost 1.37.0, program_options::arg appears to be undefined in the program_options DLL built for windows. Declared as extern in the boost code, but never defined so ends up being an unresolved at link time. Must add the following line in my program to work around: BOOST_PROGRAM_OPTIONS_DECL std::string boost::program_options::arg; FYI, had to define BOOST_ALL_NO_LIB macro to dodge unrelated boost bug (but maybe that cause this?).",Bugs,closed,Boost 1.38.0,program_options,Boost 1.36.0,Problem,fixed,,