diff --git a/libmng.changes b/libmng.changes
index 4049733..574911e 100644
--- a/libmng.changes
+++ b/libmng.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Wed Jan  7 12:34:56 CET 2009 - olh@suse.de
+
+- obsolete old -XXbit packages (bnc#437293)
+
 -------------------------------------------------------------------
 Thu Apr 10 12:54:45 CEST 2008 - ro@suse.de
 
diff --git a/libmng.spec b/libmng.spec
index fa0e073..2cc390a 100644
--- a/libmng.spec
+++ b/libmng.spec
@@ -1,10 +1,17 @@
 #
 # spec file for package libmng (Version 1.0.10)
 #
-# 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.
+# Copyright (c) 2009 SUSE LINUX Products GmbH, Nuernberg, Germany.
 #
+# 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/
 #
 
@@ -17,7 +24,12 @@ License:        GPL v2 or later; Other uncritical OpenSource License
 Group:          System/Libraries
 Summary:        Library for Support of MNG and JNG Formats
 Version:        1.0.10
-Release:        45
+Release:        89
+# bug437293
+%ifarch ppc64
+Obsoletes:      libmng-64bit
+%endif
+#
 Url:            http://www.libmng.com/
 Source0:        libmng-%version.tar.bz2
 Patch:          libmng.diff
@@ -40,6 +52,11 @@ License:        GPL v2 or later; Other uncritical OpenSource License
 Requires:       libjpeg-devel libmng liblcms-devel zlib-devel
 Summary:        Include Files and Libraries mandatory for Development.
 Group:          Development/Libraries/C and C++
+# bug437293
+%ifarch ppc64
+Obsoletes:      libmng-devel-64bit
+%endif
+#
 
 %description devel
 This library can handle MNG and JNG formats which contain animated
@@ -94,6 +111,8 @@ install -m 0755 libmng.a $RPM_BUILD_ROOT/%_libdir/libmng-mini.a
 %_libdir/libmng.so
 
 %changelog
+* Wed Jan 07 2009 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
@@ -142,7 +161,7 @@ install -m 0755 libmng.a $RPM_BUILD_ROOT/%_libdir/libmng-mini.a
   * lots of new features
 * Wed Dec 18 2002 adrian@suse.de
 - require liblcms-devel
-* Wed Aug 07 2002 adrian@suse.de
+* Tue Aug 06 2002 adrian@suse.de
 - run_ldconfig
 * Fri Jul 26 2002 adrian@suse.de
 - fix neededforbuild