diff --git a/qt.spec b/qt.spec
index b3c73e0..bbdccb9 100644
--- a/qt.spec
+++ b/qt.spec
@@ -11,7 +11,7 @@ Name:    qt
 Name:    qt4
 %endif
 Version: 4.4.0
-Release: 6%{?dist}
+Release: 7%{?dist}
 
 # GPLv2 exceptions(see GPL_EXCEPTIONS*.txt)
 License: GPLv3 or GPLv2 with exceptions or QPL
@@ -788,6 +788,9 @@ gtk-update-icon-cache -q %{_datadir}/icons/hicolor 2> /dev/null ||:
 
 
 %changelog
+* Tue Jun 10 2008 Than Ngo <than@redhat.com> 4.4.0-7
+- fix #450310, multilib issue 
+
 * Fri Jun 06 2008 Rex Dieter <rdieter@fedoraproject.org> 4.4.0-6
 - qt-copy-patches-20080606
 - drop BR: libungif-devel (not used)
diff --git a/qt4-wrapper.sh b/qt4-wrapper.sh
index 620336d..360c8c8 100755
--- a/qt4-wrapper.sh
+++ b/qt4-wrapper.sh
@@ -1,9 +1,22 @@
-#!/bin/bash
+#! /bin/bash
+#
+# In multilib environments there is a preferred architecture, 64 bit over 32 bit in x86_64,
+# 32 bit over 64 bit in ppc64. When a conflict is found between two packages corresponding
+# with different arches, the installed file is the one from the preferred arch. This is
+# very common for executables in /usr/bin, for example. If the file /usr/bin/foo is found
+# in an x86_64 package and in an i386 package, the executable from x86_64 will be installe
+
+ARCH=$(uname -m)
+QTVERSION=4
 
 if [ -z "$QT4DIR" ] ; then
-  # rpm is more correct multilib-wise, provided /etc/rpm/platform doesn't get in the way.
-  QT4DIR="$(/bin/rpm --eval "%{_libdir}/qt4" 2>/dev/null || /usr/bin/pkg-config --variable=prefix QtCore )"
-  export QT4DIR
+   case $ARCH in
+      x86_64 | ia64 | s390 )
+         QT4DIR=/usr/lib64/qt$QTVERSION ;;
+      * )
+         QT4DIR=/usr/lib/qt$QTVERSION ;;
+   esac
+   export QT4DIR
 fi
 
 if ! echo ${PATH} | /bin/grep -q $QT4DIR/bin ; then