Plugin related Linux compile error

obj/Debug/TServer.o: In function ~TServer': /home/marlon/svn/gserver-v2/trunk/build/server/../../server/src/TServer.cpp:48: undefined reference toCPluginManager::~CPluginManager()’
/home/marlon/svn/gserver-v2/trunk/build/server/…/…/server/src/TServer.cpp:48: undefined reference to CPluginManager::~CPluginManager()' /home/marlon/svn/gserver-v2/trunk/build/server/../../server/src/TServer.cpp:48: undefined reference toCPluginManager::~CPluginManager()’
/home/marlon/svn/gserver-v2/trunk/build/server/…/…/server/src/TServer.cpp:48: undefined reference to CPluginManager::~CPluginManager()' obj/Debug/TServer.o: In functionTServer’:
/home/marlon/svn/gserver-v2/trunk/build/server/…/…/server/src/TServer.cpp:21: undefined reference to CPluginManager::CPluginManager(TServer*)' /home/marlon/svn/gserver-v2/trunk/build/server/../../server/src/TServer.cpp:43: undefined reference toCPluginManager::~CPluginManager()’
/home/marlon/svn/gserver-v2/trunk/build/server/…/…/server/src/TServer.cpp:21: undefined reference to CPluginManager::CPluginManager(TServer*)' /home/marlon/svn/gserver-v2/trunk/build/server/../../server/src/TServer.cpp:43: undefined reference toCPluginManager::~CPluginManager()’
obj/Debug/TAccount.o: In function TAccount::saveAccount()': /home/marlon/svn/gserver-v2/trunk/build/server/../../server/src/TAccount.cpp:278: undefined reference toCPluginManager::SaveAccount(CString const&, CString const&)’
obj/Debug/TAccount.o: In function TAccount::loadAccount(CString const&)': /home/marlon/svn/gserver-v2/trunk/build/server/../../server/src/TAccount.cpp:61: undefined reference toCPluginManager::LoadAccount(CString const&)’
collect2: ld returned 1 exit status
make[1]: *** […/…/bin/gserver_d] Error 1
make: *** [gserver] Error 2

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