diff --git a/src/osg/ApplicationUsage.cpp b/src/osg/ApplicationUsage.cpp
index 9b0405cef..8ad30e408 100644
--- a/src/osg/ApplicationUsage.cpp
+++ b/src/osg/ApplicationUsage.cpp
@@ -11,6 +11,9 @@
  * OpenSceneGraph Public License for more details.
 */
 
+#include <stdlib.h>
+#include <string.h>
+
 #include <osg/ApplicationUsage>
 #include <osg/Math>
 #include <osg/ref_ptr>
diff --git a/src/osg/ArgumentParser.cpp b/src/osg/ArgumentParser.cpp
index c07a5b313..1adbad44c 100644
--- a/src/osg/ArgumentParser.cpp
+++ b/src/osg/ArgumentParser.cpp
@@ -11,6 +11,9 @@
  * OpenSceneGraph Public License for more details.
 */
 
+#include <stdlib.h>
+#include <string.h>
+
 #include <osg/ArgumentParser>
 #include <osg/ApplicationUsage>
 #include <osg/Notify>
diff --git a/src/osg/Geometry.cpp b/src/osg/Geometry.cpp
index d34be1ca1..cc71f0273 100644
--- a/src/osg/Geometry.cpp
+++ b/src/osg/Geometry.cpp
@@ -10,6 +10,8 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
  * OpenSceneGraph Public License for more details.
 */
+#include <stdlib.h>
+
 #include <osg/Geometry>
 #include <osg/Notify>
 
diff --git a/src/osg/LightModel.cpp b/src/osg/LightModel.cpp
index 280035a49..af2836863 100644
--- a/src/osg/LightModel.cpp
+++ b/src/osg/LightModel.cpp
@@ -10,6 +10,7 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
  * OpenSceneGraph Public License for more details.
 */
+#include <string.h>
 #include <string>
 #include <osg/GL>
 #include <osg/LightModel>
diff --git a/src/osg/PolygonOffset.cpp b/src/osg/PolygonOffset.cpp
index cbbdadefb..5bcfdcdf2 100644
--- a/src/osg/PolygonOffset.cpp
+++ b/src/osg/PolygonOffset.cpp
@@ -10,6 +10,8 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
  * OpenSceneGraph Public License for more details.
 */
+#include <string.h>
+
 #include <osg/GL>
 #include <osg/PolygonOffset>
 #include <osg/Notify>
diff --git a/src/osg/Uniform.cpp b/src/osg/Uniform.cpp
index 5823bb349..3d34de609 100644
--- a/src/osg/Uniform.cpp
+++ b/src/osg/Uniform.cpp
@@ -13,6 +13,7 @@
 /* file:   src/osg/Uniform.cpp
  * author: Mike Weiblen 2006-05-15
 */
+#include <string.h>
 
 #include <osg/Notify>
 #include <osg/Uniform>
diff --git a/src/osg/Version.cpp b/src/osg/Version.cpp
index 207f70536..e0db2172f 100644
--- a/src/osg/Version.cpp
+++ b/src/osg/Version.cpp
@@ -12,6 +12,7 @@
 */
 #include <osg/Version>
 #include <string>
+#include <stdio.h>
 
 extern "C" {
 
diff --git a/src/osgPlugins/obj/obj.cpp b/src/osgPlugins/obj/obj.cpp
index bb57f2853..b334ade95 100644
--- a/src/osgPlugins/obj/obj.cpp
+++ b/src/osgPlugins/obj/obj.cpp
@@ -12,6 +12,7 @@
 */
 
 #include <fstream>
+#include <stdio.h>
 
 #include "obj.h"
 
diff --git a/src/osgSim/OpenFlightOptimizer.cpp b/src/osgSim/OpenFlightOptimizer.cpp
index a9671da2f..c0267bdce 100644
--- a/src/osgSim/OpenFlightOptimizer.cpp
+++ b/src/osgSim/OpenFlightOptimizer.cpp
@@ -4,6 +4,8 @@
 //  Copyright (C) 2005-2006  Brede Johansen
 //
 
+#include <stdlib.h>
+
 #include <osgSim/OpenFlightOptimizer>
 
 #include <osg/Notify>
diff --git a/src/osgUtil/DisplayRequirementsVisitor.cpp b/src/osgUtil/DisplayRequirementsVisitor.cpp
index 7831054f4..ec3dcf7de 100644
--- a/src/osgUtil/DisplayRequirementsVisitor.cpp
+++ b/src/osgUtil/DisplayRequirementsVisitor.cpp
@@ -15,6 +15,7 @@
 #endif
 
 #include <stdio.h>
+#include <string.h>
 #include <list>
 #include <set>
 
diff --git a/src/osgViewer/StatsHandler.cpp b/src/osgViewer/StatsHandler.cpp
index 3fb75ef0d..1506c4468 100644
--- a/src/osgViewer/StatsHandler.cpp
+++ b/src/osgViewer/StatsHandler.cpp
@@ -11,6 +11,8 @@
  * OpenSceneGraph Public License for more details.
 */
 
+#include <stdio.h>
+
 #include <osgViewer/ViewerEventHandlers>
 
 #include <osg/PolygonMode>
diff --git a/src/osgViewer/Viewer.cpp b/src/osgViewer/Viewer.cpp
index 4d9e4d822..7cb736176 100644
--- a/src/osgViewer/Viewer.cpp
+++ b/src/osgViewer/Viewer.cpp
@@ -11,6 +11,8 @@
  * OpenSceneGraph Public License for more details.
 */
 
+#include <stdio.h>
+
 #include <osg/GLExtensions>
 #include <osg/DeleteHandler>
 #include <osgUtil/Optimizer>