diff --git a/include/osg/TriangleFunctor b/include/osg/TriangleFunctor
index 6cd619c2d..526f36171 100644
--- a/include/osg/TriangleFunctor
+++ b/include/osg/TriangleFunctor
@@ -33,7 +33,7 @@ public:
     
     virtual ~TriangleFunctor() {}
 
-    virtual void setVertexArray(unsigned int count,const Vec2* vertices) 
+    virtual void setVertexArray(unsigned int,const Vec2*) 
     {
         notify(WARN)<<"Triangle Functor does not support Vec2* vertex arrays"<<std::endl;
     }
@@ -44,7 +44,7 @@ public:
         _vertexArrayPtr = vertices;
     }
 
-    virtual void setVertexArray(unsigned int count,const Vec4* vertices) 
+    virtual void setVertexArray(unsigned int,const Vec4* ) 
     {
         notify(WARN)<<"Triangle Functor does not support Vec4* vertex arrays"<<std::endl;
     }
diff --git a/src/osgParticle/FluidFrictionOperator.cpp b/src/osgParticle/FluidFrictionOperator.cpp
index 8144eeac9..71f41512c 100644
--- a/src/osgParticle/FluidFrictionOperator.cpp
+++ b/src/osgParticle/FluidFrictionOperator.cpp
@@ -27,7 +27,7 @@ osgParticle::FluidFrictionOperator::FluidFrictionOperator(const FluidFrictionOpe
 {
 }
 
-void osgParticle::FluidFrictionOperator::operate(Particle *P, double dt)
+void osgParticle::FluidFrictionOperator::operate(Particle *P, double)
 {
     float r = (ovr_rad_ > 0)? ovr_rad_ : P->getRadius();
     osg::Vec3 v = P->getVelocity();
diff --git a/src/osgPlugins/dw/ReaderWriterDW.cpp b/src/osgPlugins/dw/ReaderWriterDW.cpp
index 89daf59c6..c05193cf9 100644
--- a/src/osgPlugins/dw/ReaderWriterDW.cpp
+++ b/src/osgPlugins/dw/ReaderWriterDW.cpp
@@ -415,7 +415,6 @@ public:
         const _face *f1, const _face *f2, 
         const int ipr[2], const int nv) {
 		int gsidx[4];
-		int nbeg=verts.size()-4; // first vertex in vec3array
         gsidx[0]=f1->getidx(ipr[1]); // vertex position index
         gsidx[1]=f1->getidx(ipr[0]); // vertex position index
         gsidx[2]=f2->getidx(nv-ipr[0]-1); // vertex position index
diff --git a/src/osgPlugins/flt/MultiTextureRecord.cpp b/src/osgPlugins/flt/MultiTextureRecord.cpp
index cbbce45fa..d0fb7aa43 100644
--- a/src/osgPlugins/flt/MultiTextureRecord.cpp
+++ b/src/osgPlugins/flt/MultiTextureRecord.cpp
@@ -29,9 +29,6 @@ MultiTextureRecord::~MultiTextureRecord()
 // virtual
 void MultiTextureRecord::endian()
 {
-
-    int flightVersion = getFlightVersion();
-
     SMultiTexture *pSMultiTexture = (SMultiTexture*)getData();
 
     ENDIAN( pSMultiTexture->layers );
diff --git a/src/osgPlugins/osg/ReaderWriterOSG.cpp b/src/osgPlugins/osg/ReaderWriterOSG.cpp
index ef5f61762..cb1ecb5dc 100644
--- a/src/osgPlugins/osg/ReaderWriterOSG.cpp
+++ b/src/osgPlugins/osg/ReaderWriterOSG.cpp
@@ -88,7 +88,7 @@ class OSGReaderWriter : public ReaderWriter
             return WriteResult("Unable to open file for output");
         }
 
-        virtual WriteResult writeNode(const Node& node,const std::string& fileName, const osgDB::ReaderWriter::Options* options)
+        virtual WriteResult writeNode(const Node& node,const std::string& fileName, const osgDB::ReaderWriter::Options*)
         {
             std::string ext = getFileExtension(fileName);
             if (!acceptsExtension(ext)) return WriteResult::FILE_NOT_HANDLED;
diff --git a/src/osgUtil/TriStrip_graph_array.h b/src/osgUtil/TriStrip_graph_array.h
index 633e0e15f..e6188a7f1 100644
--- a/src/osgUtil/TriStrip_graph_array.h
+++ b/src/osgUtil/TriStrip_graph_array.h
@@ -389,7 +389,7 @@ inline void graph_array<nodetype, arctype>::swap(_mytype & Right) {
 template <class nodetype, class arctype>
 void unmark_nodes(graph_array<nodetype, arctype> & G)
 {
-    typedef graph_array<nodetype, arctype>::node_iterator node_it;
+    typedef typename graph_array<nodetype, arctype>::node_iterator node_it;
 
     for (node_it NodeIt = G.begin(); NodeIt != G.end(); ++NodeIt)
         NodeIt->unmark();
@@ -399,7 +399,7 @@ void unmark_nodes(graph_array<nodetype, arctype> & G)
 template <class nodetype, class arctype>
 void unmark_arcs_from_node(typename graph_array<nodetype, arctype>::node & N)
 {
-    typedef graph_array<nodetype, arctype>::out_arc_iterator arc_it;
+    typedef typename graph_array<nodetype, arctype>::out_arc_iterator arc_it;
 
     for (arc_it ArcIt = N.out_begin(); ArcIt != N.out_end(); ++ArcIt)
         ArcIt->unmark();
@@ -409,7 +409,7 @@ void unmark_arcs_from_node(typename graph_array<nodetype, arctype>::node & N)
 template <class nodetype, class arctype>
 void unmark_arcs(graph_array<nodetype, arctype> & G)
 {
-    typedef graph_array<nodetype, arctype>::node_iterator node_it;
+    typedef typename graph_array<nodetype, arctype>::node_iterator node_it;
 
     for (node_it NodeIt = G.begin(); NodeIt != G.end(); ++NodeIt)
         unmark_arcs_from_node(* NodeIt);