moved enum metadata registration out of static methods of QObject-derived classes, which fixes #280 (GCC linker errors)

src/blackcore/blackcorefreefunctions.cpp

@@ -11,8 +11,13 @@ namespace BlackCore
 {
     void registerMetadata()
     {
-        IVoice::registerMetadata();
-        ISimulator::registerMetadata();
+        // for some reasons (ask RW) these are registered twice
+        qRegisterMetaType<ISimulator::Status>();
+        qRegisterMetaType<ISimulator::Status>("Status");
+        qRegisterMetaType<IVoice::ComUnit>();
+        qRegisterMetaType<IVoice::ComUnit>("ComUnit");
+        qRegisterMetaType<IVoice::ConnectionStatus>();
+        qRegisterMetaType<IVoice::ConnectionStatus>("ConnectionStatus");
     }
 
 } // namespace

src/blackcore/simulator.cpp

@@ -9,11 +9,4 @@ namespace BlackCore
 {
     ISimulator::ISimulator(QObject *parent) : QObject(parent)
     { }
-
-    void ISimulator::registerMetadata()
-    {
-        // for some reasons (ask RW) this is registered twice, see IVoice
-        qRegisterMetaType<Status>();
-        qRegisterMetaType<Status>("Status");
-    }
 }

src/blackcore/simulator.h

@@ -49,10 +49,6 @@ namespace BlackCore
         //! ISimulatorCan we connect?
         virtual bool canConnect() = 0;
 
-        //! ISimulatorRegister metadata
-        static void registerMetadata();
-
-
     public slots:
 
         //! ISimulatorConnect to simulator

src/blackcore/voice.cpp

@@ -9,13 +9,4 @@ namespace BlackCore
 {
     IVoice::IVoice(QObject *parent) : QObject(parent)
     { }
-
-    void IVoice::registerMetadata()
-    {
-        // for some reasons (ask RW) this is registered twice
-        qRegisterMetaType<ComUnit>();
-        qRegisterMetaType<ComUnit>("ComUnit");
-        qRegisterMetaType<ConnectionStatus>();
-        qRegisterMetaType<ConnectionStatus>("ConnectionStatus");
-    }
 }

src/blackcore/voice.h

@@ -128,9 +128,6 @@ namespace BlackCore
          */
         virtual QString micTestResultAsString() const = 0;
 
-        //! \brief Register metadata
-        static void registerMetadata();
-
     public slots:
 
         /*!