diff --git a/vcg/complex/trimesh/bitquad_creation.h b/vcg/complex/trimesh/bitquad_creation.h
index 55fe0f3b..88aa5380 100644
--- a/vcg/complex/trimesh/bitquad_creation.h
+++ b/vcg/complex/trimesh/bitquad_creation.h
@@ -342,7 +342,7 @@ static void MakePureByRefine(MeshType &m){
   assert(ev%2==0); // should be even by now 
   ev/=2; // I was counting each of them twice
 
-  int originalFaceNum = m.fn;
+  //int originalFaceNum = m.fn;
   FaceIterator nfi = tri::Allocator<MeshType>::AddFaces(m,ef); 
   VertexIterator nvi = tri::Allocator<MeshType>::AddVertices(m,ev); 
 
diff --git a/vcg/complex/trimesh/clean.h b/vcg/complex/trimesh/clean.h
index 96773f47..7eb3624d 100644
--- a/vcg/complex/trimesh/clean.h
+++ b/vcg/complex/trimesh/clean.h
@@ -1382,7 +1382,7 @@ private:
 
 	static int RemoveTVertexByCollapse(MeshType &m, float threshold=40, bool repeat=true)
 	{
-        assert(m.HasPerVertexMark());
+      assert(tri::HasPerVertexMark(m));
         //Counters for logging and convergence
         int count, total = 0;
 
diff --git a/vcg/complex/trimesh/clustering.h b/vcg/complex/trimesh/clustering.h
index c1314479..06fc555f 100644
--- a/vcg/complex/trimesh/clustering.h
+++ b/vcg/complex/trimesh/clustering.h
@@ -176,7 +176,7 @@ class  AverageColorCell
 	typedef BasicGrid<typename MeshType::ScalarType> GridType;
 
   public:
-    inline void AddFaceVertex(MeshType &m, FaceType &f, int i)
+    inline void AddFaceVertex(MeshType &/*m*/, FaceType &f, int i)
     {
       p+=f.cV(i)->cP();
       c+=CoordType(f.cV(i)->C()[0],f.cV(i)->C()[1],f.cV(i)->C()[2]);
diff --git a/vcg/complex/trimesh/update/color.h b/vcg/complex/trimesh/update/color.h
index e1d6b515..eb3fb4a2 100644
--- a/vcg/complex/trimesh/update/color.h
+++ b/vcg/complex/trimesh/update/color.h
@@ -192,12 +192,12 @@ static void MultiFaceRandom( UpdateMeshType &m)
 	FaceIterator fi;
 	Color4b BaseColor = Color4b::Black;
 	FaceConstant(m,BaseColor);
-	int id=0;
+    int id_num=0;
 	for(fi=m.face.begin();fi!=m.face.end();++fi)
 			if(!(*fi).IsD())
 			{
-				id++;
-				if((*fi).C() == BaseColor) (*fi).C() = Color4b::Scatter(50, id%50,.4f,.7f);
+                id_num++;
+                if((*fi).C() == BaseColor) (*fi).C() = Color4b::Scatter(50, id_num%50,.4f,.7f);
 				for(int j=0;j<3;++j)
 					if((*fi).IsF(j))
 					{