Some thing is missing O.o

[opyrus]

Linking...
worldconn.obj : error LNK2019: unresolved external symbol "void __cdecl log_message(enum LogType,char const *,...)" (?log_message@@YAXW4LogType@@PBDZZ) referenced in function "public: __thiscall WorldConnection::WorldConnection(enum EmuTCPConnection::ePacketMode,char const *)" (??0WorldConnection@@QAE@W4ePacketMode@EmuTCPConne ction@@PBD@Z)
eqlaunch.obj : error LNK2001: unresolved external symbol "void __cdecl log_message(enum LogType,char const *,...)" (?log_message@@YAXW4LogType@@PBDZZ)
worldserver.obj : error LNK2001: unresolved external symbol "void __cdecl log_message(enum LogType,char const *,...)" (?log_message@@YAXW4LogType@@PBDZZ)
ZoneLaunch.obj : error LNK2001: unresolved external symbol "void __cdecl log_message(enum LogType,char const *,...)" (?log_message@@YAXW4LogType@@PBDZZ)
logsys.obj : error LNK2001: unresolved external symbol "void __cdecl log_message(enum LogType,char const *,...)" (?log_message@@YAXW4LogType@@PBDZZ)
.\Release/eqlaunch.exe : fatal error LNK1120: 1 unresolved externals