diff --git a/src/osg/Image.cpp b/src/osg/Image.cpp
index 4c3931c95..d410345bc 100644
--- a/src/osg/Image.cpp
+++ b/src/osg/Image.cpp
@@ -25,6 +25,7 @@
 #include <osg/Texture2DArray>
 
 #include <string.h>
+#include <stdlib.h>
 
 #include "dxtctool.h"
 
diff --git a/src/osg/Notify.cpp b/src/osg/Notify.cpp
index 52db99af4..75a37c452 100644
--- a/src/osg/Notify.cpp
+++ b/src/osg/Notify.cpp
@@ -12,6 +12,7 @@
 */
 #include <osg/Notify>
 #include <string>
+#include <stdlib.h>
 #include <iostream>
 #include <fstream>
 
diff --git a/src/osgDB/Field.cpp b/src/osgDB/Field.cpp
index fc11b9b3d..ae340de0f 100644
--- a/src/osgDB/Field.cpp
+++ b/src/osgDB/Field.cpp
@@ -10,6 +10,7 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
  * OpenSceneGraph Public License for more details.
 */
+#include <string.h>
 #include <osgDB/Field>
 
 using namespace osgDB;
diff --git a/src/osgDB/FileNameUtils.cpp b/src/osgDB/FileNameUtils.cpp
index e60f3d155..879cf2c2c 100644
--- a/src/osgDB/FileNameUtils.cpp
+++ b/src/osgDB/FileNameUtils.cpp
@@ -11,6 +11,7 @@
  * OpenSceneGraph Public License for more details.
 */
 #include <stdlib.h>
+#include <string.h>
 #include <limits.h>
 
 #include <osgDB/FileNameUtils>
diff --git a/src/osgPlugins/lwo/ReaderWriterLWO.cpp b/src/osgPlugins/lwo/ReaderWriterLWO.cpp
index 96c181129..1e0a34fa9 100644
--- a/src/osgPlugins/lwo/ReaderWriterLWO.cpp
+++ b/src/osgPlugins/lwo/ReaderWriterLWO.cpp
@@ -16,6 +16,7 @@
 #endif
 
 #include <string>
+#include <memory>
 #include <sstream>
 #include <algorithm>
 
diff --git a/src/osgPlugins/x/directx.cpp b/src/osgPlugins/x/directx.cpp
index f29a8a8db..86bea59fa 100644
--- a/src/osgPlugins/x/directx.cpp
+++ b/src/osgPlugins/x/directx.cpp
@@ -30,6 +30,7 @@
 
 #include <iostream>
 #include <sstream>
+#include <string.h>
 
 #include <math.h>
 
diff --git a/src/osgPlugins/x/mesh.cpp b/src/osgPlugins/x/mesh.cpp
index f70cb8143..5923b5927 100644
--- a/src/osgPlugins/x/mesh.cpp
+++ b/src/osgPlugins/x/mesh.cpp
@@ -29,6 +29,8 @@
 #include "directx.h"
 
 #include <iostream>
+#include <string.h>
+#include <stdlib.h>
 
 #include <osg/Notify>
 
diff --git a/src/osgPlugins/x/types.cpp b/src/osgPlugins/x/types.cpp
index 0065775da..dfd661725 100644
--- a/src/osgPlugins/x/types.cpp
+++ b/src/osgPlugins/x/types.cpp
@@ -29,6 +29,8 @@
 #include "types.h"
 
 #include <iostream>
+#include <string.h>
+#include <stdlib.h>
 
 using namespace std;
 
diff --git a/src/osgText/DefaultFont.cpp b/src/osgText/DefaultFont.cpp
index 693ea3521..a6f531548 100644
--- a/src/osgText/DefaultFont.cpp
+++ b/src/osgText/DefaultFont.cpp
@@ -14,6 +14,7 @@
  * OpenSceneGraph Public License for more details.
 */
 
+#include <stdlib.h>
 #include "DefaultFont.h"
 
 #include <osg/Notify>
diff --git a/src/osgViewer/ViewerEventHandlers.cpp b/src/osgViewer/ViewerEventHandlers.cpp
index 057b5399e..261268ca5 100644
--- a/src/osgViewer/ViewerEventHandlers.cpp
+++ b/src/osgViewer/ViewerEventHandlers.cpp
@@ -12,6 +12,7 @@
 */
 
 #include <stdlib.h>
+#include <values.h>
 
 #include <fstream>
 #include <osgViewer/Viewer>