clang-4.0: warning: argument unused during compilation: '-rdynamic' [-Wunused-command-line-argument]
char_manager.cpp:673:106: error: expected '(' for function-style cast or type construction
                        transform(m_map_pkPCChr.begin(), m_map_pkPCChr.end(), back_inserter(v), select2nd<NAME_MAP::value_type>());
                                                                                                          ~~~~~~~~~~~~~~~~~~~~^
char_manager.cpp:673:76: error: use of undeclared identifier 'select2nd'; did you mean 'select'?
                        transform(m_map_pkPCChr.begin(), m_map_pkPCChr.end(), back_inserter(v), select2nd<NAME_MAP::value_type>());
                                                                                                ^~~~~~~~~
                                                                                                select
/usr/include/sys/select.h:103:5: note: 'select' declared here
int     select(int, fd_set *, fd_set *, fd_set *, struct timeval *);
        ^
char_manager.cpp:673:108: error: expected expression
                        transform(m_map_pkPCChr.begin(), m_map_pkPCChr.end(), back_inserter(v), select2nd<NAME_MAP::value_type>());
                                                                                                                                ^
In file included from char_manager.cpp:5:
In file included from ./char.h:23:
./char_manager.h:130:11: warning: private field 'dummy1' is not used [-Wunused-private-field]
                char                            dummy1[1024];   // memory barrier
                                                ^
1 warning and 3 errors generated.