diff --git a/expat.changes b/expat.changes
index 6bb75cc..b769b9f 100644
--- a/expat.changes
+++ b/expat.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Thu Oct 30 12:34:56 CET 2008 - olh@suse.de
+
+- obsolete old -XXbit packages (bnc#437293)
+
 -------------------------------------------------------------------
 Thu Apr 10 12:54:45 CEST 2008 - ro@suse.de
 
diff --git a/expat.spec b/expat.spec
index d5bf40a..1532a0b 100644
--- a/expat.spec
+++ b/expat.spec
@@ -2,9 +2,16 @@
 # spec file for package expat (Version 2.0.1)
 #
 # Copyright (c) 2008 SUSE LINUX Products GmbH, Nuernberg, Germany.
-# This file and all modifications and additions to the pristine
-# package are under the same license as the package itself.
 #
+# All modifications and additions to the file contributed by third parties
+# remain the property of their copyright owners, unless otherwise agreed
+# upon. The license for this file, and modifications and additions to the
+# file, is the same license as for the pristine package itself (unless the
+# license for the pristine package is not an Open Source License, in which
+# case the license is the MIT License). An "Open Source License" is a
+# license that conforms to the Open Source Definition (Version 1.9)
+# published by the Open Source Initiative.
+
 # Please submit bugfixes or comments via http://bugs.opensuse.org/
 #
 
@@ -13,10 +20,18 @@
 
 Name:           expat
 Version:        2.0.1
-Release:        53
+Release:        87
 Group:          Development/Libraries/C and C++
 License:        X11/MIT
 Url:            http://expat.sourceforge.net/
+# bug437293
+%ifarch ppc64
+Obsoletes:      expat-64bit
+%endif
+%ifarch  %ix86 ppc
+Obsoletes:      expat-32bit
+%endif
+#
 Summary:        XML Parser Toolkit
 Source0:        %{name}-%{version}.tar.bz2
 Source1:        %{name}faq.html
@@ -55,6 +70,14 @@ Authors:
 License:        MOZILLA PUBLIC LICENSE (MPL/NPL)
 Summary:        XML Parser Toolkit
 Group:          Development/Libraries/C and C++
+# bug437293
+%ifarch ppc64
+Obsoletes:      expat-64bit
+%endif
+%ifarch  %ix86 ppc
+Obsoletes:      expat-32bit
+%endif
+#
 
 %description -n libexpat1
 Expat is an XML 1.0 parser written in C. It aims to be fully
@@ -169,6 +192,8 @@ rm -rf $RPM_BUILD_ROOT
 %{_libdir}/libexpat.so
 
 %changelog
+* Thu Oct 30 2008 olh@suse.de
+- obsolete old -XXbit packages (bnc#437293)
 * Thu Apr 10 2008 ro@suse.de
 - added baselibs.conf file to build xxbit packages
   for multilib support