diff --git a/include/osgDB/FieldReader b/include/osgDB/FieldReader
index 375afa7ca..a1ac06dec 100644
--- a/include/osgDB/FieldReader
+++ b/include/osgDB/FieldReader
@@ -15,6 +15,7 @@
 #else
 #include <iostream>
 using std::istream;
+using std::ifstream;
 #endif
 
 namespace osgDB {
diff --git a/src/osgPlugins/flt/ReaderWriterATTR.cpp b/src/osgPlugins/flt/ReaderWriterATTR.cpp
index f550be18e..345850275 100644
--- a/src/osgPlugins/flt/ReaderWriterATTR.cpp
+++ b/src/osgPlugins/flt/ReaderWriterATTR.cpp
@@ -42,6 +42,10 @@
 #include <iostream>
 #include <fstream>
 
+#ifndef OSG_USE_IO_DOT_H
+using std::ios;
+#endif
+
 typedef signed char     int8;
 typedef unsigned char   uint8;
 typedef signed short    int16;
diff --git a/src/osgPlugins/osg/StateSet.cpp b/src/osgPlugins/osg/StateSet.cpp
index 7fbe1b73f..8ce147cc4 100644
--- a/src/osgPlugins/osg/StateSet.cpp
+++ b/src/osgPlugins/osg/StateSet.cpp
@@ -392,7 +392,7 @@ bool StateSet_writeLocalData(const Object& obj, Output& fw)
          else
          {
             // no name defined for GLMode so just pass its value to fw.
-            fw.indent() << "0x" << hex << (osg::uint)mitr->first << dec <<" " << StateSet_getModeStr(mitr->second) << endl;
+			 fw.indent() << "0x" << std::hex << (osg::uint)mitr->first << std::dec <<" " << StateSet_getModeStr(mitr->second) << endl;
          }
     }
     
diff --git a/src/osgPlugins/osg/Stencil.cpp b/src/osgPlugins/osg/Stencil.cpp
index 7754a4a1a..b2ff76776 100644
--- a/src/osgPlugins/osg/Stencil.cpp
+++ b/src/osgPlugins/osg/Stencil.cpp
@@ -106,13 +106,13 @@ bool Stencil_writeLocalData(const Object& obj,Output& fw)
 
     fw.indent() << "function " << Stencil_getFuncStr(stencil.getFunction()) << endl;
     fw.indent() << "functionRef " << stencil.getFunctionRef() << endl;
-    fw.indent() << "functionMask 0x" << hex << stencil.getFunctionMask() << dec << endl;
+    fw.indent() << "functionMask 0x" << std::hex << stencil.getFunctionMask() << std::dec << endl;
     
     fw.indent() << "stencilFailOperation " << Stencil_getOperationStr(stencil.getStencilFailOperation()) << endl;
     fw.indent() << "stencilPassAndDepthFailOperation " << Stencil_getOperationStr(stencil.getStencilPassAndDepthFailOperation()) << endl;
     fw.indent() << "stencilPassAndDepthPassOperation " << Stencil_getOperationStr(stencil.getStencilPassAndDepthPassOperation()) << endl;
     
-    fw.indent() << "writeMask 0x" << hex << stencil.getWriteMask() << dec << endl;
+    fw.indent() << "writeMask 0x" << std::hex << stencil.getWriteMask() << std::dec << endl;
 
     return true;
 }