diff --git a/icu.changes b/icu.changes
index 1e31ff7..a319489 100644
--- a/icu.changes
+++ b/icu.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Thu Oct 30 12:34:56 CET 2008 - olh@suse.de
+
+- obsolete old -XXbit packages (bnc#437293)
+
 -------------------------------------------------------------------
 Sat Sep 13 14:17:38 CEST 2008 - vuntz@novell.com
 
diff --git a/icu.spec b/icu.spec
index 8badfd5..6d4569e 100644
--- a/icu.spec
+++ b/icu.spec
@@ -24,7 +24,7 @@ License:        X11/MIT
 Group:          System/Libraries
 AutoReqProv:    on
 Version:        4.0
-Release:        5
+Release:        6
 Requires:       libicu = %{version}
 Url:            http://ibm.com/software/globalization/icu
 Source0:        icu4c-4_0-src.tar.bz2
@@ -61,6 +61,14 @@ Authors:
 License:        IBM Public License
 Summary:        International Components for Unicode (development files)
 Group:          Development/Libraries/C and C++
+# bug437293
+%ifarch ppc64
+Obsoletes:      libicu-64bit
+%endif
+%ifarch  %ix86 ppc
+Obsoletes:      libicu-32bit
+%endif
+#
 Provides:       libicu17 libicu22 libicu26 libicu30 libicu32 libicu34
 Obsoletes:      libicu17 libicu22 libicu26 libicu30 libicu32 libicu34 icu-i18ndata
 
@@ -80,6 +88,14 @@ Authors:
 License:        IBM Public License
 Summary:        International Components for Unicode (development files)
 Group:          Development/Libraries/C and C++
+# bug437293
+%ifarch ppc64
+Obsoletes:      libicu-devel-64bit
+%endif
+%ifarch  %ix86 ppc
+Obsoletes:      libicu-devel-32bit
+%endif
+#
 Requires:       libicu = %{version}
 
 %description -n libicu-devel
@@ -231,6 +247,8 @@ rm -rf $RPM_BUILD_ROOT
 /usr/share/icu/%{version}/UnicodeData.txt
 
 %changelog
+* Thu Oct 30 2008 olh@suse.de
+- obsolete old -XXbit packages (bnc#437293)
 * Sat Sep 13 2008 vuntz@novell.com
 - Merge with openSUSE:Factory. Redo the patch tags that were done
   by jpr@novell.com
@@ -329,7 +347,7 @@ rm -rf $RPM_BUILD_ROOT
 - converted neededforbuild to BuildRequires
 * Wed Aug 03 2005 sbrabec@suse.cz
 - Updated to version 3.4.
-* Tue Mar 29 2005 gekker@suse.de
+* Mon Mar 28 2005 gekker@suse.de
 - Move icu-config to libicu-devel package (8030).
 * Mon Jan 10 2005 sbrabec@suse.cz
 - Updated to version 3.2 (#49578).
@@ -355,7 +373,7 @@ rm -rf $RPM_BUILD_ROOT
 - update to 2.6.
 * Mon Jun 16 2003 mfabian@suse.de
 - fix "directory not owned by any package".
-* Sat May 17 2003 mfabian@suse.de
+* Fri May 16 2003 mfabian@suse.de
 - fix file list, remove CVS directories.
 * Wed Sep 11 2002 mfabian@suse.de
 - /usr/sbin/gencnval is now in /usr/bin/gencnval.
@@ -371,8 +389,8 @@ rm -rf $RPM_BUILD_ROOT
 - use %%{_libdir}
 * Tue Mar 12 2002 kukuk@suse.de
 - Fix most wrong directories in filelist
-* Tue Feb 12 2002 ro@suse.de
+* Mon Feb 11 2002 ro@suse.de
 - tar option for bz2 is "j"
-* Thu Mar 08 2001 mfabian@suse.de
+* Wed Mar 07 2001 mfabian@suse.de
 - new package: icu 1.7
 - package names as described in PACKAGING