diff -duHrp Python-2.4.1.orig/Modules/cjkcodecs/_codecs_cn.c Python-2.4.1/Modules/cjkcodecs/_codecs_cn.c
--- Python-2.4.1.orig/Modules/cjkcodecs/_codecs_cn.c	2004-07-17 23:06:27.000000000 -0400
+++ Python-2.4.1/Modules/cjkcodecs/_codecs_cn.c	2005-05-27 04:08:22.000000000 -0400
@@ -8,6 +8,20 @@
 #include "cjkcodecs.h"
 #include "mappings_cn.h"
 
+/*
+ * hz is defined in AIX as the scheduling freq with a value of 100. This creates
+ * a problem in this file. HZ is an Internet convention for encoding
+ * GB (which is commonly used in China and Singapore for writing)
+ * text. Since this clashes with the #define in AIX, and hz is not
+ * required here, wrapping the undef in a #ifdef AIX
+ */
+#ifdef _AIX
+  #ifdef hz
+   #undef hz
+  #endif
+#endif
+
+
 #define GBK_PREDECODE(dc1, dc2, assi) \
 	if ((dc1) == 0xa1 && (dc2) == 0xaa) (assi) = 0x2014; \
 	else if ((dc1) == 0xa8 && (dc2) == 0x44) (assi) = 0x2015; \
diff -duHrp Python-2.4.1.orig/Modules/datetimemodule.c Python-2.4.1/Modules/datetimemodule.c
--- Python-2.4.1.orig/Modules/datetimemodule.c	2004-12-19 15:16:57.000000000 -0500
+++ Python-2.4.1/Modules/datetimemodule.c	2005-05-27 04:11:31.000000000 -0400
@@ -970,8 +970,11 @@ typedef enum {
 	       */
 	      OFFSET_NAIVE,
 
+/* 
+* IBM's VisualAge compiler doesn't accept trailing commas
+*/
 	      /* time or datetime where utcoffset() doesn't return None */
-	      OFFSET_AWARE,
+	      OFFSET_AWARE
 } naivety;
 
 /* Classify an object as to whether it's naive or offset-aware.  See
diff -duHrp Python-2.4.1.orig/Modules/expat/expat.h Python-2.4.1/Modules/expat/expat.h
--- Python-2.4.1.orig/Modules/expat/expat.h	2004-08-03 03:06:22.000000000 -0400
+++ Python-2.4.1/Modules/expat/expat.h	2005-05-27 04:12:36.000000000 -0400
@@ -43,7 +43,10 @@ enum XML_Status {
 #define XML_STATUS_ERROR XML_STATUS_ERROR
   XML_STATUS_OK = 1,
 #define XML_STATUS_OK XML_STATUS_OK
-  XML_STATUS_SUSPENDED = 2,
+/* 
+* IBM's VisualAge compiler doesn't accept trailing commas
+*/
+  XML_STATUS_SUSPENDED = 2
 #define XML_STATUS_SUSPENDED XML_STATUS_SUSPENDED
 };
 
diff -duHrp Python-2.4.1.orig/Python/thread.c Python-2.4.1/Python/thread.c
--- Python-2.4.1.orig/Python/thread.c	2004-10-09 21:58:44.000000000 -0400
+++ Python-2.4.1/Python/thread.c	2005-05-27 04:14:10.000000000 -0400
@@ -97,7 +97,20 @@ void PyThread_init_thread(void)
 #undef _POSIX_THREADS
 #endif
 
+/* 
+* AIX defines THREAD_SAFE and the xlc compiler can't handle
+* multiple defines. Hence wrapping the thread_pthread.h
+* include in a # define
+*/
+#ifdef _AIX
 #ifdef _POSIX_THREADS
+#include <standards.h>
+#ifdef _THREAD_SAFE
+#undef _THREAD_SAFE
+#include "thread_pthread.h"
+#endif
+#endif
+#else
 #include "thread_pthread.h"
 #endif