Gtkmm linken Windows

[Gtkmm Frage]

Ich habe alles von Gtkmm64\lib eingebunden mit der endung dll.a.
Leider bekomme ich von Codeblocks immer den Fehler:

obj\Debug\main.o||In function \_tcf\_1':| C:\\gtkmm64\\include\\gtkmm-2.4\\gtkmm\\papersize.h|41|undefined reference toGlib::ustring::~ustring()'|
obj\Debug\main.o||In function \_tcf\_2':| C:\\gtkmm64\\include\\gtkmm-2.4\\gtkmm\\papersize.h|42|undefined reference toGlib::ustring::~ustring()'|
obj\Debug\main.o||In function \_tcf\_3':| C:\\gtkmm64\\include\\gtkmm-2.4\\gtkmm\\papersize.h|43|undefined reference toGlib::ustring::~ustring()'|
obj\Debug\main.o||In function \_tcf\_4':| C:\\gtkmm64\\include\\gtkmm-2.4\\gtkmm\\papersize.h|44|undefined reference toGlib::ustring::~ustring()'|
obj\Debug\main.o||In function \_tcf\_5':| C:\\gtkmm64\\include\\gtkmm-2.4\\gtkmm\\papersize.h|45|undefined reference toGlib::ustring::~ustring()'|
obj\Debug\main.o:C:\gtkmm64\include\gtkmm-2.4\gtkmm\papersize.h|46|more undefined references to Glib::ustring::~ustring()' follow| obj\\Debug\\main.o||In function_static_initialization_and_destruction_0':|
C:\gtkmm64\include\gtkmm-2.4\gtkmm\papersize.h|41|undefined reference to Glib::ustring::ustring(char const*)'| C:\\gtkmm64\\include\\gtkmm-2.4\\gtkmm\\papersize.h|42|undefined reference toGlib::ustring::ustring(char const*)'|
C:\gtkmm64\include\gtkmm-2.4\gtkmm\papersize.h|43|undefined reference to Glib::ustring::ustring(char const*)'| C:\\gtkmm64\\include\\gtkmm-2.4\\gtkmm\\papersize.h|44|undefined reference toGlib::ustring::ustring(char const*)'|
C:\gtkmm64\include\gtkmm-2.4\gtkmm\papersize.h|45|undefined reference to Glib::ustring::ustring(char const*)'| obj\\Debug\\main.o:C:\\gtkmm64\\include\\gtkmm-2.4\\gtkmm\\papersize.h|46|more undefined references toGlib::ustring::ustring(char const*)' follow|
||=== Build finished: 12 errors, 0 warnings ===|

Was fehlt mir noch ?