diff --git a/examples/osggpucull/DrawIndirectPrimitiveSet.cpp b/examples/osggpucull/DrawIndirectPrimitiveSet.cpp
index 2d16ae92b..bbb5ff45b 100644
--- a/examples/osggpucull/DrawIndirectPrimitiveSet.cpp
+++ b/examples/osggpucull/DrawIndirectPrimitiveSet.cpp
@@ -34,7 +34,7 @@ void DrawArraysIndirect::draw(osg::State& state, bool /*useVertexBufferObjects*/
 
 }
 
-void MultiDrawArraysIndirect::draw(osg::State& state, bool useVertexBufferObjects) const
+void MultiDrawArraysIndirect::draw(osg::State& state, bool /*useVertexBufferObjects*/) const
 {
    // DrawIndirectGLExtensions *ext = DrawIndirectGLExtensions::getExtensions( state.getContextID(),true );
     state.get<osg::GLExtensions>()->glMultiDrawArraysIndirect( _mode, reinterpret_cast<const void*>(_indirect), _drawcount, _stride );
diff --git a/include/osgAnimation/Channel b/include/osgAnimation/Channel
index 365c3a55c..5ed868204 100644
--- a/include/osgAnimation/Channel
+++ b/include/osgAnimation/Channel
@@ -81,7 +81,7 @@ namespace osgAnimation
         typedef TemplateKeyframeContainer<typename SamplerType::KeyframeType> KeyframeContainerType;
 
         Object* cloneType() const { return new TemplateChannel(); }
-        Object* clone(const osg::CopyOp& copyop) const { return new TemplateChannel<SamplerType>(*this); }
+        Object* clone(const osg::CopyOp&) const { return new TemplateChannel<SamplerType>(*this); }
         Channel* clone() const { return new TemplateChannel<SamplerType>(*this); }
 
         TemplateChannel (const TemplateChannel& channel) :