From Andy Skinner, build fixes for Solaris.

examples/osgdepthpeeling/DePee.cpp

@@ -9,6 +9,8 @@
 
 #include "DePee.h"
 
+#include <stdio.h>
+
 #include <osg/GLExtensions>
 #include <osg/Node>
 #include <osg/MatrixTransform>

examples/osgdepthpeeling/Utility.cpp

@@ -10,6 +10,7 @@
 #include <assert.h>
 #include <iostream>
 #include <fstream>
+#include <stdio.h>
 #include <osg/Geometry>
 #include <osg/Geode>
 #include <osgDB/FileUtils>

examples/osghangglide/GliderManipulator.cpp

@@ -16,6 +16,8 @@
 *  THE SOFTWARE.
 */
 
+#include <stdlib.h>
+
 #include "GliderManipulator.h"
 #include <osg/Notify>