diff --git a/src/xercesc/util/AutoSense.hpp b/src/xercesc/util/AutoSense.hpp
index f7a44e29d5ef0e881e8b1746d0c5caccc57d28f0..d9c30250697aa6357c245a793911637f66025daa 100644
--- a/src/xercesc/util/AutoSense.hpp
+++ b/src/xercesc/util/AutoSense.hpp
@@ -1,7 +1,7 @@
 /*
  * The Apache Software License, Version 1.1
  *
- * Copyright (c) 1999-2001 The Apache Software Foundation.  All rights
+ * Copyright (c) 1999-2002 The Apache Software Foundation.  All rights
  * reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -56,6 +56,9 @@
 
 /*
  * $Log$
+ * Revision 1.3  2002/03/04 20:31:14  tng
+ * [Bug 2868] AIX 4.3.3 mutex/atomic-operation changes for build.
+ *
  * Revision 1.2  2002/02/27 22:38:34  peiyongz
  * Bug# 6445 Caldera (SCO) OpenServer Port : patch from Martin Kalen
  *
@@ -152,6 +155,9 @@
 #if defined(_AIX)
     #define XML_AIX
     #define XML_UNIX
+    #if defined(_AIXVERSION_430)
+        #define XML_AIX43  // for use of POSIX compliant pthread functions
+    #endif
 #elif defined(_SEQUENT_)
     #define XML_PTX
     #define XML_UNIX
diff --git a/src/xercesc/util/Platforms/AIX/AIXPlatformUtils.cpp b/src/xercesc/util/Platforms/AIX/AIXPlatformUtils.cpp
index e9c6e5a059b591f1f5e9975f5cdc0fb23000ed90..68f15d8e7e6964d1ff4c1e663ea2f5c031bf07ab 100644
--- a/src/xercesc/util/Platforms/AIX/AIXPlatformUtils.cpp
+++ b/src/xercesc/util/Platforms/AIX/AIXPlatformUtils.cpp
@@ -1,37 +1,37 @@
 /*
  * The Apache Software License, Version 1.1
- * 
- * Copyright (c) 1999-2000 The Apache Software Foundation.  All rights
+ *
+ * Copyright (c) 1999-2002 The Apache Software Foundation.  All rights
  * reserved.
- * 
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
- * 
+ *
  * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer. 
- * 
+ *    notice, this list of conditions and the following disclaimer.
+ *
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in
  *    the documentation and/or other materials provided with the
  *    distribution.
- * 
+ *
  * 3. The end-user documentation included with the redistribution,
- *    if any, must include the following acknowledgment:  
+ *    if any, must include the following acknowledgment:
  *       "This product includes software developed by the
  *        Apache Software Foundation (http://www.apache.org/)."
  *    Alternately, this acknowledgment may appear in the software itself,
  *    if and wherever such third-party acknowledgments normally appear.
- * 
+ *
  * 4. The names "Xerces" and "Apache Software Foundation" must
  *    not be used to endorse or promote products derived from this
- *    software without prior written permission. For written 
+ *    software without prior written permission. For written
  *    permission, please contact apache\@apache.org.
- * 
+ *
  * 5. Products derived from this software may not be called "Apache",
  *    nor may "Apache" appear in their name, without prior written
  *    permission of the Apache Software Foundation.
- * 
+ *
  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
@@ -45,7 +45,7 @@
  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  * ====================================================================
- * 
+ *
  * This software consists of voluntary contributions made by many
  * individuals on behalf of the Apache Software Foundation, and was
  * originally based on software copyright (c) 1999, International
@@ -335,9 +335,9 @@ XMLCh* XMLPlatformUtils::getFullPath(const XMLCh* const srcPath)
     // Use a local buffer that is big enough for the largest legal path
     char *absPath = new char[PATH_MAX];
     ArrayJanitor<char> janText2(absPath);
-    //get the absolute path 
-    char* retPath = realpath(newSrc, absPath);  
-    
+    //get the absolute path
+    char* retPath = realpath(newSrc, absPath);
+
     if (!retPath)
     {
         ThrowXML(XMLPlatformUtilsException,
@@ -518,7 +518,11 @@ void* XMLPlatformUtils::makeMutex()
     pthread_mutexattr_delete(attr);
 #else
     pthread_mutexattr_init(attr);
-    pthread_mutexattr_setkind_np(attr, MUTEX_RECURSIVE_NP);
+    #if defined(XML_AIX43)
+        pthread_mutexattr_settype(attr, PTHREAD_MUTEX_RECURSIVE);
+    #else
+        pthread_mutexattr_setkind_np(attr, MUTEX_RECURSIVE_NP);
+    #endif
     if (pthread_mutex_init(mutex, attr))
     {
         ThrowXML(XMLPlatformUtilsException,