diff --git a/libidn.changes b/libidn.changes
index ef7953e..bc904e3 100644
--- a/libidn.changes
+++ b/libidn.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Wed Jan  7 12:34:56 CET 2009 - olh@suse.de
+
+- obsolete old -XXbit packages (bnc#437293)
+
 -------------------------------------------------------------------
 Tue Oct 14 21:16:52 CEST 2008 - crrodriguez@suse.de
 
diff --git a/libidn.spec b/libidn.spec
index 7c8e114..cfb0c0a 100644
--- a/libidn.spec
+++ b/libidn.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package libidn (Version 1.10)
 #
-# Copyright (c) 2008 SUSE LINUX Products GmbH, Nuernberg, Germany.
+# 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
@@ -22,7 +22,12 @@ Name:           libidn
 License:        GPL v3 only; LGPL v2.1 or later
 Group:          System/Libraries
 Version:        1.10
-Release:        2
+Release:        3
+# bug437293
+%ifarch ppc64
+Obsoletes:      libidn-64bit
+%endif
+#
 Summary:        Support for Internationalized Domain Names (IDN)
 Url:            http://www.gnu.org/software/libidn/
 Source0:        http://josefsson.org/libidn/releases/libidn-%version.tar.bz2
@@ -53,6 +58,11 @@ License:        LGPL v2.1 or later
 Requires:       %{name} = %{version} glibc-devel
 Summary:        Include Files and Libraries mandatory for Development
 Group:          System/Libraries
+# bug437293
+%ifarch ppc64
+Obsoletes:      libidn-devel-64bit
+%endif
+#
 
 %description devel
 GNU Libidn is an implementation of the Stringprep, Punycode, and IDNA
@@ -117,6 +127,8 @@ rm -rf $RPM_BUILD_ROOT
 %_mandir/man3/*
 
 %changelog
+* Wed Jan 07 2009 olh@suse.de
+- obsolete old -XXbit packages (bnc#437293)
 * Tue Oct 14 2008 crrodriguez@suse.de
 - disable static libraries
 * Tue Oct 07 2008 stbinner@suse.de
@@ -208,7 +220,7 @@ rm -rf $RPM_BUILD_ROOT
 - Added %%install_info_prereq.
 * Wed Jan 25 2006 mls@suse.de
 - converted neededforbuild to BuildRequires
-* Sun Dec 04 2005 coolo@suse.de
+* Sat Dec 03 2005 coolo@suse.de
 - update to 0.6.0
 * Wed Aug 03 2005 coolo@suse.de
 - move .la file to -devel package