SF patch 473749 compile under OS/2 VA C++, from Michael Muller.
Changes enabling Python to compile under OS/2 Visual Age C++.
diff --git a/PC/os2vacpp/python.def b/PC/os2vacpp/python.def
index 6477536..5376935 100644
--- a/PC/os2vacpp/python.def
+++ b/PC/os2vacpp/python.def
@@ -1,5 +1,5 @@
-LIBRARY        PYTHON15 INITINSTANCE TERMINSTANCE
-DESCRIPTION    'Python 1.5 Core DLL'
+LIBRARY        PYTHON22 INITINSTANCE TERMINSTANCE
+DESCRIPTION    'Python 2.2 Core DLL'
 PROTMODE
 DATA           MULTIPLE NONSHARED
 
@@ -472,4 +472,9 @@
                _Py_re_search
                _Py_re_set_syntax
 ;               _Py_samebitset
+               PyBuffer_Type
+               PyBuffer_FromObject
+               PyBuffer_FromMemory
+               PyBuffer_FromReadWriteMemory
+               PyBuffer_New