diff --git a/vcg/space/point_matching.h b/vcg/space/point_matching.h
index 05c599b6..7df6a116 100644
--- a/vcg/space/point_matching.h
+++ b/vcg/space/point_matching.h
@@ -50,26 +50,26 @@ void ComputeCrossCovarianceMatrix(const std::vector<Point3<S> > &spVec, Point3<S
                                   const std::vector<Point3<S> > &tpVec, Point3<S> &tpBarycenter,
                                   Eigen::Matrix3d &m)
 {
-    assert(spVec.size()==tpVec.size());
-    m.setZero();
-    spBarycenter.SetZero();
-    tpBarycenter.SetZero();
-    Eigen::Vector3d spe;
-    Eigen::Vector3d tpe;
-    typename std::vector <Point3<S> >::const_iterator si,ti;
-    for(si=spVec.begin(),ti=tpVec.begin();si!=spVec.end();++si,++ti){
-        spBarycenter+=*si;
-        tpBarycenter+=*ti;
-         si->ToEigenVector(spe);
-         ti->ToEigenVector(tpe);
-        m+=spe*tpe.transpose();
-    }
-    spBarycenter/=spVec.size();
-    tpBarycenter/=tpVec.size();
-    spBarycenter.ToEigenVector(spe);
-    tpBarycenter.ToEigenVector(tpe);
-    m/=spVec.size();
-    m-=spe*tpe.transpose();
+	assert(spVec.size() == tpVec.size());
+	m.setZero();
+	spBarycenter.SetZero();
+	tpBarycenter.SetZero();
+	Eigen::Vector3d spe;
+	Eigen::Vector3d tpe;
+	typename std::vector <Point3<S> >::const_iterator si, ti;
+	for (si = spVec.begin(), ti = tpVec.begin(); si != spVec.end(); ++si, ++ti){
+		spBarycenter += *si;
+		tpBarycenter += *ti;
+		si->ToEigenVector(spe);
+		ti->ToEigenVector(tpe);
+		m += spe*tpe.transpose();
+	}
+	spBarycenter /= double(spVec.size());
+	tpBarycenter /= double(tpVec.size());
+	spBarycenter.ToEigenVector(spe);
+	tpBarycenter.ToEigenVector(tpe);
+	m /= double(spVec.size());
+	m -= spe*tpe.transpose();
 }
 
 /*! \brief Compute the roto-translation that applied to PMov bring them onto Pfix
diff --git a/wrap/dae/colladaformat.h b/wrap/dae/colladaformat.h
index 72f137d3..29b6dfe7 100644
--- a/wrap/dae/colladaformat.h
+++ b/wrap/dae/colladaformat.h
@@ -760,7 +760,7 @@ namespace Tags
 	class BindVertexInputTag : public XMLTag
 	{
 	public:
-		BindVertexInputTag(const QString& semantic,const QString& input_semantic,const QString& input_set)
+		BindVertexInputTag(const QString& semantic,const QString& input_semantic,const QString& /*input_set*/)
 			:XMLTag("bind_vertex_input")
 		{
 			_attributes.push_back(TagAttribute("semantic",semantic));
diff --git a/wrap/gl/gl_mesh_attributes_multi_viewer_bo_manager.h b/wrap/gl/gl_mesh_attributes_multi_viewer_bo_manager.h
index e434e086..547273b6 100644
--- a/wrap/gl/gl_mesh_attributes_multi_viewer_bo_manager.h
+++ b/wrap/gl/gl_mesh_attributes_multi_viewer_bo_manager.h
@@ -1509,7 +1509,7 @@ namespace vcg
 				{
 					//qDebug("Indexed drawing");
 					glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, _bo[INT_ATT_NAMES::ATT_VERTINDICES]->_bohandle);
-					glDrawElements(GL_TRIANGLES, _mesh.FN() * _bo[INT_ATT_NAMES::ATT_VERTINDICES]->_components, GL_UNSIGNED_INT, NULL);
+					glDrawElements(GL_TRIANGLES, GLsizei(_mesh.FN() * _bo[INT_ATT_NAMES::ATT_VERTINDICES]->_components), GL_UNSIGNED_INT, NULL);
 					glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
 
 				}
@@ -1819,7 +1819,7 @@ namespace vcg
 				//qDebug("Indexed drawing");
 				updateClientState(req);
 				glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, _bo[INT_ATT_NAMES::ATT_EDGEINDICES]->_bohandle);
-				glDrawElements(GL_LINES, _edge.size() * _bo[INT_ATT_NAMES::ATT_EDGEINDICES]->_components, GL_UNSIGNED_INT, NULL);
+				glDrawElements(GL_LINES, GLsizei(_edge.size() * _bo[INT_ATT_NAMES::ATT_EDGEINDICES]->_components), GL_UNSIGNED_INT, NULL);
 				glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
 				InternalRendAtts tmp;
 				updateClientState(tmp);
@@ -2235,8 +2235,8 @@ namespace vcg
 				assert(nz >= 0);
 				assert(nz < 2);
 
-				_v[0] = size_t(vcg::tri::Index(m, pe->V(nz)));;
-				_v[1] = size_t(vcg::tri::Index(m, pe->V((nz + 1) % 2)));
+				_v[0] = GLuint(vcg::tri::Index(m, pe->V(nz)));;
+				_v[1] = GLuint(vcg::tri::Index(m, pe->V((nz + 1) % 2)));
 				assert(_v[0] != _v[1]); // The face pointed by 'f' is Degenerate (two coincident vertexes)
 
 				if (_v[0] > _v[1])
diff --git a/wrap/gui/rubberband.cpp b/wrap/gui/rubberband.cpp
index f08d0002..57d81632 100644
--- a/wrap/gui/rubberband.cpp
+++ b/wrap/gui/rubberband.cpp
@@ -139,7 +139,7 @@ void Rubberband::Render(QGLWidget* gla)
   assert(!glGetError());
 }
 
-void Rubberband::RenderLine(QGLWidget* gla, Point3f AA, Point3f BB)
+void Rubberband::RenderLine(QGLWidget* /*gla*/, Point3f AA, Point3f BB)
 {
 	// Drawing of the line from AA to BB
 	glPushAttrib(GL_DEPTH_BUFFER_BIT | GL_ENABLE_BIT | GL_LINE_BIT | GL_POINT_BIT | GL_CURRENT_BIT | GL_LIGHTING_BIT | GL_COLOR_BUFFER_BIT);
diff --git a/wrap/io_trimesh/export_3ds.h b/wrap/io_trimesh/export_3ds.h
index 9a473b75..69e4bd15 100644
--- a/wrap/io_trimesh/export_3ds.h
+++ b/wrap/io_trimesh/export_3ds.h
@@ -234,7 +234,7 @@ namespace io {
 							if(AddDuplexVertexCoord(ListOfDuplexVert,Key(i,t)))
 							{
 								VectorOfVertexType.push_back((*(*fi).V(k)));
-								ListOfDuplexVert[Key(i,t)] = VectorOfVertexType.size()-1;
+								ListOfDuplexVert[Key(i,t)] = int(VectorOfVertexType.size()-1);
 								count++;
 							}
 						}
diff --git a/wrap/io_trimesh/io_ply.h b/wrap/io_trimesh/io_ply.h
index b376ee86..bd5aafcf 100644
--- a/wrap/io_trimesh/io_ply.h
+++ b/wrap/io_trimesh/io_ply.h
@@ -76,7 +76,7 @@ public:
     elemDescVec[elemType]->push_back(PropDescriptor());
     elemNameVec[elemType]->push_back(attrName);
     elemDescVec[elemType]->back().elemname=elemStr[elemType];
-    elemDescVec[elemType]->back().propname=strdup(propName);
+    elemDescVec[elemType]->back().propname=_strdup(propName);
     elemDescVec[elemType]->back().stotype1 = vcg::ply::T_FLOAT;
     elemDescVec[elemType]->back().memtype1 = vcg::ply::T_FLOAT;
   }