diff --git a/src/osgUtil/PerlinNoise.cpp b/src/osgUtil/PerlinNoise.cpp
index 72694be6b..b917f6771 100644
--- a/src/osgUtil/PerlinNoise.cpp
+++ b/src/osgUtil/PerlinNoise.cpp
@@ -234,15 +234,14 @@ void PerlinNoise::initNoise(void)
 double PerlinNoise::PerlinNoise1D(double x,double alpha,double beta,int n)
 {
    int i;
-   double val,sum = 0;
-   double p,scale = 1;
-
-   p = x;
+   double val,sum = 0.0;
+   double scale = 1.0;
+   double pv = x;
    for (i=0;i<n;i++) {
-      val = noise1(p);
+      val = noise1(pv);
       sum += val / scale;
       scale *= alpha;
-      p *= beta;
+      pv *= beta;
    }
    return(sum);
 }
@@ -250,17 +249,17 @@ double PerlinNoise::PerlinNoise1D(double x,double alpha,double beta,int n)
 double PerlinNoise::PerlinNoise2D(double x,double y,double alpha,double beta,int n)
 {
    int i;
-   double val,sum = 0;
-   double p[2],scale = 1;
+   double sum = 0.0;
+   double pv[2],scale = 1.0;
 
-   p[0] = x;
-   p[1] = y;
+   pv[0] = x;
+   pv[1] = y;
    for (i=0;i<n;i++) {
-      val = noise2(p);
+      double val = noise2(pv);
       sum += val / scale;
       scale *= alpha;
-      p[0] *= beta;
-      p[1] *= beta;
+      pv[0] *= beta;
+      pv[1] *= beta;
    }
    return(sum);
 }
@@ -268,19 +267,19 @@ double PerlinNoise::PerlinNoise2D(double x,double y,double alpha,double beta,int
 double PerlinNoise::PerlinNoise3D(double x,double y,double z,double alpha,double beta,int n)
 {
    int i;
-   double val,sum = 0;
-   double p[3],scale = 1;
+   double sum = 0.0;
+   double pv[3],scale = 1.0;
 
-   p[0] = x;
-   p[1] = y;
-   p[2] = z;
+   pv[0] = x;
+   pv[1] = y;
+   pv[2] = z;
    for (i=0;i<n;i++) {
-      val = noise3(p);
+      double val = noise3(pv);
       sum += val / scale;
       scale *= alpha;
-      p[0] *= beta;
-      p[1] *= beta;
-      p[2] *= beta;
+      pv[0] *= beta;
+      pv[1] *= beta;
+      pv[2] *= beta;
    }
    return(sum);
 }
diff --git a/src/osgUtil/RenderStage.cpp b/src/osgUtil/RenderStage.cpp
index 19a733303..b059c39af 100644
--- a/src/osgUtil/RenderStage.cpp
+++ b/src/osgUtil/RenderStage.cpp
@@ -248,8 +248,7 @@ void RenderStage::runCameraSetUp(osg::RenderInfo& renderInfo)
     int width = static_cast<int>(_viewport->x() + _viewport->width());
     int height = static_cast<int>(_viewport->y() + _viewport->height());
     int depth = 1;
-    osg::Camera::BufferAttachmentMap::iterator itr;
-    for(itr = bufferAttachments.begin();
+    for(osg::Camera::BufferAttachmentMap::iterator itr = bufferAttachments.begin();
         itr != bufferAttachments.end();
         ++itr)
     {
@@ -262,7 +261,7 @@ void RenderStage::runCameraSetUp(osg::RenderInfo& renderInfo)
     // OSG_NOTICE<<"RenderStage::runCameraSetUp computed "<<width<<" "<<height<<" "<<depth<<std::endl;
 
     // attach images that need to be copied after the stage is drawn.
-    for(itr = bufferAttachments.begin();
+    for(osg::Camera::BufferAttachmentMap::iterator itr = bufferAttachments.begin();
         itr != bufferAttachments.end();
         ++itr)
     {
@@ -552,8 +551,7 @@ void RenderStage::runCameraSetUp(osg::RenderInfo& renderInfo)
                 {
                     fbo_multisample->apply(state);
 
-                    GLenum status = ext->glCheckFramebufferStatus(GL_FRAMEBUFFER_EXT);
-
+                    status = ext->glCheckFramebufferStatus(GL_FRAMEBUFFER_EXT);
                     if (status != GL_FRAMEBUFFER_COMPLETE_EXT)
                     {
                         OSG_NOTICE << "RenderStage::runCameraSetUp(), "
@@ -1039,8 +1037,7 @@ void RenderStage::drawInner(osg::RenderInfo& renderInfo,RenderLeaf*& previous, b
         copyTexture(renderInfo);
     }
 
-    std::map< osg::Camera::BufferComponent, Attachment>::const_iterator itr;
-    for(itr = _bufferAttachmentMap.begin();
+    for(std::map< osg::Camera::BufferComponent, Attachment>::const_iterator itr = _bufferAttachmentMap.begin();
         itr != _bufferAttachmentMap.end();
         ++itr)
     {
diff --git a/src/osgUtil/SmoothingVisitor.cpp b/src/osgUtil/SmoothingVisitor.cpp
index cf0693bfc..8448b3f6d 100644
--- a/src/osgUtil/SmoothingVisitor.cpp
+++ b/src/osgUtil/SmoothingVisitor.cpp
@@ -481,11 +481,11 @@ struct FindSharpEdgesFunctor
             Triangles::iterator titr = pv->_triangles.begin();
             while(titr != pv->_triangles.end())
             {
-                Triangle* tri = titr->get();
-                osg::Vec3 normal = computeNormal(tri->_p1, tri->_p2, tri->_p3);
+                Triangle* pv_tri = titr->get();
+                osg::Vec3 normal = computeNormal(pv_tri->_p1, pv_tri->_p2, pv_tri->_p3);
 
                 Triangles associatedTriangles;
-                associatedTriangles.push_back(tri);
+                associatedTriangles.push_back(pv_tri);
 
                 // remove triangle for list
                 pv->_triangles.erase(titr);
@@ -516,7 +516,7 @@ struct FindSharpEdgesFunctor
                 // create duplicate vertex to set of associated triangles
                 unsigned int duplicated_p = duplicateVertex(p);
 
-                // now rest the index on th triangles of the point that was duplicated
+                // now rest the index on the triangles of the point that was duplicated
                 for(Triangles::iterator aitr = associatedTriangles.begin();
                     aitr != associatedTriangles.end();
                     ++aitr)
diff --git a/src/osgUtil/TriStripVisitor.cpp b/src/osgUtil/TriStripVisitor.cpp
index dd005de8e..c16056efe 100644
--- a/src/osgUtil/TriStripVisitor.cpp
+++ b/src/osgUtil/TriStripVisitor.cpp
@@ -231,8 +231,7 @@ void TriStripVisitor::stripify(Geometry& geom)
     unsigned int numSurfacePrimitives = 0;
     unsigned int numNonSurfacePrimitives = 0;
     Geometry::PrimitiveSetList& primitives = geom.getPrimitiveSetList();
-    Geometry::PrimitiveSetList::iterator itr;
-    for(itr=primitives.begin();
+    for(Geometry::PrimitiveSetList::iterator itr=primitives.begin();
         itr!=primitives.end();
         ++itr)
     {
@@ -258,24 +257,23 @@ void TriStripVisitor::stripify(Geometry& geom)
 
     // compute duplicate vertices
 
-    typedef std::vector<unsigned int> IndexList;
     unsigned int numVertices = geom.getVertexArray()->getNumElements();
-    IndexList indices(numVertices);
+    IndexList vindices(numVertices);
     unsigned int i,j;
     for(i=0;i<numVertices;++i)
     {
-        indices[i] = i;
+        vindices[i] = i;
     }
 
     VertexAttribComparitor arrayComparitor(geom);
-    std::sort(indices.begin(),indices.end(),arrayComparitor);
+    std::sort(vindices.begin(), vindices.end(), arrayComparitor);
 
     unsigned int lastUnique = 0;
     unsigned int numUnique = 1;
     unsigned int numDuplicate = 0;
     for(i=1;i<numVertices;++i)
     {
-        if (arrayComparitor.compare(indices[lastUnique],indices[i])==0)
+        if (arrayComparitor.compare(vindices[lastUnique], vindices[i])==0)
         {
             //std::cout<<"  found duplicate "<<indices[lastUnique]<<" and "<<indices[i]<<std::endl;
             ++numDuplicate;
@@ -297,31 +295,31 @@ void TriStripVisitor::stripify(Geometry& geom)
     lastUnique = 0;
     for(i=1;i<numVertices;++i)
     {
-        if (arrayComparitor.compare(indices[lastUnique],indices[i])!=0)
+        if (arrayComparitor.compare(vindices[lastUnique], vindices[i])!=0)
         {
             // found a new vertex entry, so previous run of duplicates needs
             // to be put together.
-            unsigned int min_index = indices[lastUnique];
+            unsigned int min_index = vindices[lastUnique];
             for(j=lastUnique+1;j<i;++j)
             {
-                min_index = osg::minimum(min_index,indices[j]);
+                min_index = osg::minimum(min_index, vindices[j]);
             }
             for(j=lastUnique;j<i;++j)
             {
-                remapDuplicatesToOrignals[indices[j]]=min_index;
+                remapDuplicatesToOrignals[vindices[j]]=min_index;
             }
             lastUnique = i;
         }
 
     }
-    unsigned int min_index = indices[lastUnique];
+    unsigned int min_index = vindices[lastUnique];
     for(j=lastUnique+1;j<i;++j)
     {
-        min_index = osg::minimum(min_index,indices[j]);
+        min_index = osg::minimum(min_index, vindices[j]);
     }
     for(j=lastUnique;j<i;++j)
     {
-        remapDuplicatesToOrignals[indices[j]]=min_index;
+        remapDuplicatesToOrignals[vindices[j]]=min_index;
     }
 
 
@@ -355,7 +353,7 @@ void TriStripVisitor::stripify(Geometry& geom)
     Geometry::PrimitiveSetList new_primitives;
     new_primitives.reserve(primitives.size());
 
-    for(itr=primitives.begin();
+    for(Geometry::PrimitiveSetList::iterator itr=primitives.begin();
         itr!=primitives.end();
         ++itr)
     {