Problem mit libsigc++

Bisher hat das immer anstandslos kompiliert, nur plötzlich hab ich Fehlermeldungen aus denen ich nicht ganz schlau werde:

1>------ Erstellen gestartet: Projekt: NLSandbox, Konfiguration: Debug Win32 ------
1>Kompilieren...
1>NLApplication.cpp
1>D:\Source\NightLight\include\sigc++/functors/slot.h(172) : error C2059: Syntaxfehler: 'template'
1> D:\Source\NightLight\include\sigc++/functors/slot.h(169): Bei der Kompilierung der Klassen-template der void sigc::internal::slot_call2<T_functor,T_return,T_arg1,T_arg2>::call_it(sigc::internal::slot_rep *,const unsigned char &,const bool &)-Memberfunktion
1> with
1> [
1> T_functor=sigc::bound_mem_functor2<void,NightLight::NLApplication,NightLight::u8,bool>,
1> T_return=void,
1> T_arg1=const NightLight::u8,
1> T_arg2=const bool
1> ]
1> D:\Source\NightLight\include\sigc++/functors/slot.h(607): Siehe Verweis auf die Instanziierung der gerade kompilierten Klassen-template "sigc::internal::slot_call2<T_functor,T_return,T_arg1,T_arg2>".
1> with
1> [
1> T_functor=sigc::bound_mem_functor2<void,NightLight::NLApplication,NightLight::u8,bool>,
1> T_return=void,
1> T_arg1=const NightLight::u8,
1> T_arg2=const bool
1> ]
1> D:\Source\NightLight\include\sigc++/functors/slot.h(1183): Siehe Verweis auf die Instanziierung der gerade kompilierten Funktions-template "sigc::slot2<T_return,T_arg1,T_arg2>::slot2<T_functor>(const T_functor &)".
1> with
1> [
1> T_return=void,
1> T_arg1=const NightLight::u8,
1> T_arg2=const bool,
1> T_functor=sigc::bound_mem_functor2<void,NightLight::NLApplication,NightLight::u8,bool>
1> ]
1> .\NLApplication.cpp(55): Siehe Verweis auf die Instanziierung der gerade kompilierten Funktions-template "sigc::slot<T_return,T_arg1,T_arg2>::slot<sigc::bound_mem_functor2<T_return,T_obj,NightLight::u8,bool>>(const T_functor &)".
1> with
1> [
1> T_return=void,
1> T_arg1=const NightLight::u8,
1> T_arg2=const bool,
1> T_obj=NightLight::NLApplication,
1> T_functor=sigc::bound_mem_functor2<void,NightLight::NLApplication,NightLight::u8,bool>
1> ]
1>D:\Source\NightLight\include\sigc++/functors/slot.h(172) : error C2951: template-Deklarationen sind nur im globalen, Namespace- oder Klassengültigkeitsbereich zulässig.
1>Das Buildprotokoll wurde unter "file://D:\Source\NightLight\obj\NLSandbox\Debug\BuildLog.htm" gespeichert.
1>NLSandbox - 2 Fehler, 0 Warnung(en)
========== Erstellen: 0 erfolgreich, Fehler bei 1, 1 aktuell, 0 übersprungen ==========

Folgende Typedefs und Macros:

/// \brief Key-Event-Slot
    typedef sigc::slot<void, const u8, const bool> NLKeySlot;

    /// \brief Key-Event
    // true if down
    typedef sigc::signal<void, const u8, const bool> NLKeyEvent;

    /// \brief Mouse-Event-Slot
    typedef sigc::slot<void, const f32, const f32, const u8, const bool> NLMouseSlot;

    /// \brief Mouse-Event
    // true if down
    typedef sigc::signal<void, const f32, const f32, const u8, const bool> NLMouseEvent;

    /// \brief Render Event-Slot
    typedef sigc::slot<void, const u32> NLRenderSlot;

    /// \brief Render Event
    typedef sigc::signal<void, const u32> NLRenderEvent;

    /// \brief Quit-Event. Is fired when the application quits.
    typedef sigc::signal<bool> NLQuitEvent;

    /// \brief Quit-Slot.
    typedef sigc::slot<bool> NLQuitSlot;

/*!
 * \def NLBindKeySlot(CNAME, FNAME)
 * \brief Use this macro to bind your method as callback for the KeyEvent.
 * \param CNAME The name of the class holding the callback.
 * \param FNAME The Name of the function which represents the callback.
 */
#define NLBindKeySlot(CNAME, FNAME) \
    NLIWindow::NLKeySlot(sigc::mem_fun(this, &CNAME::FNAME))

/**
 * \brief Use this macro to bind your method as callback for the MouseMove-Event.
 * \param CNAME The name of the class holding the callback.
 * \param FNAME The Name of the function which represents the callback.
 */
#define NLBindMouseSlot(CNAME, FNAME) \
   NLIWindow::NLMouseSlot(sigc::mem_fun(this, &CNAME::FNAME))

/**
 * \brief Use this macro to bind your method as callback for the Render-Event.
 * \param CNAME The name of the class holding the callback.
 * \param FNAME The Name of the function which represents the callback.
 */
#define NLBindRenderSlot(CNAME, FNAME) \
    NLIWindow::NLRenderSlot(sigc::mem_fun(this, &CNAME::FNAME))

Verwendung:

window.connectSignal(NLBindKeySlot(NLApplication, onKey));
    window.connectSignal(NLBindRenderSlot(NLApplication, onRender));
    window.connectSignal(NLBindQuitSlot(NLApplication, onQuit));
    window.connectSignal(NLBindMouseSlot(NLApplication, onMouseMove));

Fehlerstelle im libsigc++ Code:

static T_return call_it(slot_rep* rep, typename type_trait<T_arg1>::take a_1,typename type_trait<T_arg2>::take a_2)
    {
      typedef typed_slot_rep<T_functor> typed_slot;
      typed_slot *typed_rep = static_cast<typed_slot*>(rep);
      return (typed_rep->functor_).SIGC_WORKAROUND_OPERATOR_PARENTHESES<typename type_trait<T_arg1>::take,typename type_trait<T_arg2>::take>
               (a_1,a_2);
    }

Hoffe jemand kann mir helfen.
rya.