LP-30 fix minor compilation warning about copy constructor

make/3rdparty/osgearth/osg-3.4.patch

@@ -1,3 +1,15 @@
+diff --git a/include/osg/OperationThread b/include/osg/OperationThread
+index a62157e..75adfba 100644
+--- a/include/osg/OperationThread
++++ b/include/osg/OperationThread
+@@ -80,6 +80,7 @@ protected:
+             _keep(false) {}
+ 
+         Operation(const Operation& op):
++            Referenced(),
+             _name(op._name),
+             _keep(op._keep) {}
+ 
 diff --git a/include/osgViewer/View b/include/osgViewer/View
 index 472b489..07ef9ce 100644
 --- a/include/osgViewer/View

make/3rdparty/osgearth/osgearth-2.7.patch

@@ -0,0 +1,13 @@
+diff --git a/src/osgEarthSymbology/Resource b/src/osgEarthSymbology/Resource
+index a8a1441..934fc7d 100644
+--- a/src/osgEarthSymbology/Resource
++++ b/src/osgEarthSymbology/Resource
+@@ -33,7 +33,7 @@ namespace osgEarth { namespace Symbology
+     class OSGEARTHSYMBOLOGY_EXPORT Resource : public Taggable<osg::Object>
+     {
+     protected:
+-        Resource(const Resource& rhs,const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY) {};
++        Resource(const Resource& rhs,const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY) : Taggable() {};
+         Resource( const Config& config =Config() );
+ 
+         /** dtor */