check for libtoolize before attempting to use it

ChangeLog

+2002-12-15  Harri Porten  <porten@kde.org>
+
+	* autogen.sh: check for libtoolize before attempting to use it 
+
 2002-12-15  Havoc Pennington  <hp@pobox.com>
 
 	* dbus/dbus-threads.c: add thread stubs that a higher library

autogen.sh

@@ -37,6 +37,13 @@ ACLOCAL=aclocal-1.6
 	DIE=1
 }
 
+(libtoolize --version) < /dev/null > /dev/null 2>&1 || {
+	echo
+	echo "You must have libtoolize installed to compile $PROJECT."
+	echo "Install the libtool package from ftp.gnu.org or a mirror."
+	DIE=1
+}
+
 if test "$DIE" -eq 1; then
 	exit 1
 fi