From Mathias Froehlich, build fixes

include/osgShadow/MinimalShadowMap

@@ -62,7 +62,7 @@ class OSGSHADOW_EXPORT MinimalShadowMap : public StandardShadowMap
             EMPTY_BOX,
             BOUNDING_SPHERE,
             BOUNDING_BOX,
-            DEFAULT_ACCURACY = BOUNDING_BOX,
+            DEFAULT_ACCURACY = BOUNDING_BOX
         };
 
         void  setShadowReceivingCoarseBoundAccuracy

src/osgDB/DatabasePager.cpp

@@ -1630,7 +1630,7 @@ void DatabasePager::compileGLObjects(osg::State& state, double& availableTime)
             OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_dataToCompileList->_requestMutex);
         
             // advance to the next entry to compile if one is available.
-            databaseRequest = _dataToCompileList->_requestList.empty() ? 0 : _dataToCompileList->_requestList.front();
+            databaseRequest = _dataToCompileList->_requestList.empty() ? 0 : _dataToCompileList->_requestList.front().get();
         };
 
         unsigned int numObjectsCompiled = 0;

src/osgPlugins/osga/OSGA_Archive.cpp

@@ -561,7 +561,7 @@ bool OSGA_Archive::addFileReference(pos_type position, size_type size, const std
 
     // get an IndexBlock with space available if possible
     unsigned int blockSize = 4096;
-    osg::ref_ptr<IndexBlock> indexBlock = _indexBlockList.empty() ? 0 : _indexBlockList.back();
+    osg::ref_ptr<IndexBlock> indexBlock = _indexBlockList.empty() ? 0 : _indexBlockList.back().get();
     osg::ref_ptr<IndexBlock> previousBlock = indexBlock;
     if (indexBlock.valid())
     {

src/osgSim/LightPointNode.cpp

@@ -204,7 +204,7 @@ void LightPointNode::traverse(osg::NodeVisitor& nv)
         // as this will be our special light point drawable.
         osgUtil::StateGraph::LeafList::iterator litr;
         for(litr = rg->_leaves.begin();
-            litr != rg->_leaves.end() && (*litr)->_drawable!=drawable;
+            litr != rg->_leaves.end() && (*litr)->_drawable.get()!=drawable;
             ++litr)
         {}
         

src/osgVolume/ImageUtils.cpp

@@ -12,6 +12,7 @@
 */
 
 #include <float.h>
+#include <string.h>
 #include <osg/Math>
 #include <osg/Notify>
 #include <osgVolume/ImageUtils>