diff --git a/include/tclap/CmdLine.h b/include/tclap/CmdLine.h
index 6d1244f..2aa3f35 100644
--- a/include/tclap/CmdLine.h
+++ b/include/tclap/CmdLine.h
@@ -36,8 +36,6 @@
 #include <vector>
 #include <list>
 #include <iostream>
-#include <ostream>
-#include <iomanip>
 #include <algorithm>
 
 namespace TCLAP {
diff --git a/include/tclap/CmdLineInterface.h b/include/tclap/CmdLineInterface.h
index 331f030..b5852aa 100644
--- a/include/tclap/CmdLineInterface.h
+++ b/include/tclap/CmdLineInterface.h
@@ -28,10 +28,6 @@
 #include <vector>
 #include <list>
 #include <iostream>
-#include <ostream>
-#include <cstdio>
-#include <cstdarg>
-#include <iomanip>
 #include <algorithm>
 
 namespace TCLAP {
diff --git a/include/tclap/MultiArg.h b/include/tclap/MultiArg.h
index 1b1c374..fff63c0 100644
--- a/include/tclap/MultiArg.h
+++ b/include/tclap/MultiArg.h
@@ -25,7 +25,13 @@
 
 #include <string>
 #include <vector>
+
+#include <config.h>
+#ifdef HAVE_SSTREAM
 #include <sstream>
+#elif HAVE_SSTREAM
+#include <strstream>
+#endif
 
 #include <tclap/Arg.h>
 
@@ -73,7 +79,19 @@ class ValueExtractor
 		int extractValue( const std::string& val ) 
 		{
 			T temp;
+
+#ifdef HAVE_SSTREAM
 			std::istringstream is(val);
+#elif HAVE_STRSTREAM
+			std::istrstream is(val.c_str());
+#else
+        	throw(SpecificationException(
+							string("Missing sstream or strstream lib, ") +
+			                       "without which, nothing will work.  " +
+								   "Not even sure how you got this far!",
+								toString()));
+#endif
+
 			int valuesRead = 0;
     
 			while ( is.good() ) 
@@ -326,7 +344,19 @@ void MultiArg<T>::allowedInit()
 {
 	for ( unsigned int i = 0; i < _allowed.size(); i++ )
    	{
+
+#ifdef HAVE_SSTREAM
    		std::ostringstream os;
+#elif HAVE_STRSTREAM
+   		std::ostrstream os;
+#else
+        throw(SpecificationException(
+							string("Missing sstream or strstream lib, ") +
+			                       "without which, nothing will work.  " +
+								   "Not even sure how you got this far!",
+								toString()));
+#endif
+
    		os << _allowed[i];
 
    		std::string temp( os.str() );
diff --git a/include/tclap/PrintSensibly.h b/include/tclap/PrintSensibly.h
index ec33c30..7f19fe2 100644
--- a/include/tclap/PrintSensibly.h
+++ b/include/tclap/PrintSensibly.h
@@ -23,7 +23,7 @@
 #ifndef TCLAP_PRINTSENSIBLY_H
 #define TCLAP_PRINTSENSIBLY_H
 
-#include <ostream>
+#include <iostream>
 #include <algorithm>
 #include <string>
 
diff --git a/include/tclap/SwitchArg.h b/include/tclap/SwitchArg.h
index 190291b..0e4576f 100644
--- a/include/tclap/SwitchArg.h
+++ b/include/tclap/SwitchArg.h
@@ -26,7 +26,6 @@
 
 #include <string>
 #include <vector>
-#include <sstream>
 
 #include <tclap/Arg.h>
 
diff --git a/include/tclap/UnlabeledMultiArg.h b/include/tclap/UnlabeledMultiArg.h
index 972f9b2..b35034d 100644
--- a/include/tclap/UnlabeledMultiArg.h
+++ b/include/tclap/UnlabeledMultiArg.h
@@ -25,7 +25,6 @@
 
 #include <string>
 #include <vector>
-#include <sstream>
 
 #include <tclap/MultiArg.h>
 
diff --git a/include/tclap/UnlabeledValueArg.h b/include/tclap/UnlabeledValueArg.h
index cfbd161..7a98b6b 100644
--- a/include/tclap/UnlabeledValueArg.h
+++ b/include/tclap/UnlabeledValueArg.h
@@ -26,7 +26,6 @@
 
 #include <string>
 #include <vector>
-#include <sstream>
 
 #include <tclap/ValueArg.h>
 
diff --git a/include/tclap/ValueArg.h b/include/tclap/ValueArg.h
index 64e589c..2eb27cb 100644
--- a/include/tclap/ValueArg.h
+++ b/include/tclap/ValueArg.h
@@ -25,7 +25,13 @@
 
 #include <string>
 #include <vector>
+
+#include <config.h>
+#if defined(HAVE_SSTREAM)
 #include <sstream>
+#elif defined(HAVE_STRSTREAM)
+#include <strstream>
+#endif
 
 #include <tclap/Arg.h>
 
@@ -74,8 +80,19 @@ template<class T> class ValueExtractor
 		 */
         int extractValue( const std::string& val ) 
 		{
-            std::istringstream is(val);
-      
+
+#ifdef HAVE_SSTREAM
+			std::istringstream is(val);
+#elif HAVE_STRSTREAM
+			std::istrstream is(val.c_str());
+#else
+			throw(SpecificationException(
+							string("Missing sstream or strstream lib, ") +
+									"without which, nothing will work.  " +
+									"Not even sure how you got this far!",
+								toString()));
+#endif
+
             int valuesRead = 0;
             while ( is.good() ) 
 			{
@@ -358,7 +375,19 @@ void ValueArg<T>::allowedInit()
 {
     for ( unsigned int i = 0; i < _allowed.size(); i++ )
     {
+
+#ifdef HAVE_SSTREAM
         std::ostringstream os;
+#elif defined(HAVE_STRSTREAM)
+        std::ostrstream os;
+#else
+		throw(SpecificationException(
+								string("Missing sstream or strstream lib, ") + 
+								       "without which, nothing will work.  " +
+								       "Not even sure how you got this far!", 
+								toString()));
+#endif
+
         os << _allowed[i];
 
         std::string temp( os.str() ); 
diff --git a/include/tclap/XorHandler.h b/include/tclap/XorHandler.h
index 0b03d47..152bc52 100644
--- a/include/tclap/XorHandler.h
+++ b/include/tclap/XorHandler.h
@@ -28,7 +28,7 @@
 #include <string>
 #include <vector>
 #include <algorithm>
-#include <ostream>
+#include <iostream>
 
 namespace TCLAP {