diff --git a/libvisual.changes b/libvisual.changes
index 7b32b9c..ee0f040 100644
--- a/libvisual.changes
+++ b/libvisual.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Wed Jan  7 12:34:56 CET 2009 - olh@suse.de
+
+- obsolete old -XXbit packages (bnc#437293)
+
 -------------------------------------------------------------------
 Thu Nov 13 00:16:30 CET 2008 - crrodriguez@suse.de
 
diff --git a/libvisual.spec b/libvisual.spec
index 559b358..70d0444 100644
--- a/libvisual.spec
+++ b/libvisual.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package libvisual (Version 0.4.0)
 #
-# 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
@@ -23,7 +23,12 @@ BuildRequires:  freeglut-devel gcc-c++ libdrm-devel pkgconfig
 License:        GPL v2 or later; LGPL v2.1 or later
 Group:          Productivity/Multimedia/Sound/Visualization
 Version:        0.4.0
-Release:        174
+Release:        175
+# bug437293
+%ifarch ppc64
+Obsoletes:      libvisual-64bit
+%endif
+#
 Summary:        Sound Visualization Library
 Url:            http://localhost.nl/~synap/libvisual-wiki/index.php/Main_Page
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
@@ -51,6 +56,11 @@ License:        GPL v2 or later; LGPL v2.1 or later
 Group:          Productivity/Multimedia/Sound/Visualization
 Summary:        sound visualisation library
 Requires:       %{name} = %{version} glibc-devel
+# bug437293
+%ifarch ppc64
+Obsoletes:      libvisual-devel-64bit
+%endif
+#
 
 %description devel
 Libvisual is a library that acts as a middle layer between applications
@@ -115,6 +125,8 @@ rm -rf $RPM_BUILD_ROOT/%_datadir/locale
 %_libdir/libvisual-0.4.la
 
 %changelog
+* Wed Jan 07 2009 olh@suse.de
+- obsolete old -XXbit packages (bnc#437293)
 * Thu Nov 13 2008 crrodriguez@suse.de
 - use -fno-strict-aliasing to avoid breakages.
 * Thu Apr 10 2008 ro@suse.de