From Ulrich Hertlein, fixes for OSX build

src/osg/ImageStream.cpp

@@ -31,7 +31,8 @@ ImageStream::ImageStream():
 
 ImageStream::ImageStream(const ImageStream& image,const CopyOp& copyop):
     Image(image,copyop),
-    _status(image._status)
+    _status(image._status),
+    _loopingMode(image._loopingMode)
 {
 }
 

src/osg/OperationThread.cpp

@@ -344,7 +344,7 @@ int OperationThread::cancel()
 #endif
             // commenting out debug info as it was cashing crash on exit, presumable
             // due to osg::notify or std::cout destructing earlier than this destructor.
-            osg::notify(osg::INFO)<<"   Waiting for OperationThread to cancel "<<this<<std::endl;
+            osg::notify(osg::DEBUG_INFO)<<"   Waiting for OperationThread to cancel "<<this<<std::endl;
             OpenThreads::Thread::YieldCurrentThread();
         }
     }

src/osgVolume/CMakeLists.txt

@@ -30,6 +30,7 @@ ADD_LIBRARY(${LIB_NAME}
 
 SET(TARGET_LIBRARIES_VARS FREETYPE_LIBRARY )
 LINK_INTERNAL(${LIB_NAME}     
+    osgUtil
     osgDB
     osg
     OpenThreads