diff --git a/src/osgDB/FileNameUtils.cpp b/src/osgDB/FileNameUtils.cpp
index c9af30f2e..9647882b5 100644
--- a/src/osgDB/FileNameUtils.cpp
+++ b/src/osgDB/FileNameUtils.cpp
@@ -10,6 +10,9 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
  * OpenSceneGraph Public License for more details.
 */
+#include <stdlib.h>
+#include <limits.h>
+
 #include <osgDB/FileNameUtils>
 
 #ifdef WIN32
diff --git a/src/osgPlugins/txp/trpage_swap.cpp b/src/osgPlugins/txp/trpage_swap.cpp
index 1c34f23cd..d723d337a 100644
--- a/src/osgPlugins/txp/trpage_swap.cpp
+++ b/src/osgPlugins/txp/trpage_swap.cpp
@@ -15,6 +15,7 @@
 
 #include <stdlib.h>
 #include <stdio.h>
+#include <string.h>
 
 /* trpage_swap.h
     Byte swapping utility functions.