Merge pull request openigtlink#68 from jcfr/fix-misc-warnings

Fix misc warnings

Author: leochan2009

MRML/vtkIGTLToMRMLBase.h

@@ -101,7 +101,7 @@ class VTK_SLICER_OPENIGTLINKIF_MODULE_MRML_EXPORT vtkIGTLToMRMLBase : public vtk
   // Description:
   // Functions to de-serialize (unpack) the OpenIGTLink message and store in the class instance.
   // The de-serialized message must be deleted in IGTLToMRML()
-  virtual int          UnpackIGTLMessage(igtl::MessageBase::Pointer buffer) { return 1; };
+  virtual int          UnpackIGTLMessage(igtl::MessageBase::Pointer vtkNotUsed(buffer)) { return 1; };
 
   // Description:
   // Functions to convert OpenIGTLink message to MRML node.

MRML/vtkMRMLIGTLConnectorNode.cxx

@@ -840,7 +840,7 @@ int vtkMRMLIGTLConnectorNode::ReceiveController()
           vtkIGTLToMRMLBase* converter = GetConverterByIGTLDeviceType(headerMsg->GetDeviceType());
           if (converter)
             {
-            for(int i = 0; i < converter->GetAllMRMLNames().size(); i++)
+            for(unsigned int i = 0; i < converter->GetAllMRMLNames().size(); i++)
               {
               const char* mrmlName = converter->GetAllMRMLNames()[i].c_str();
               if (strcmp(node->GetNodeTagName(), mrmlName) == 0)