Does anybody know what the following errors mean?
should I rebuild these packages?

Thanks,
Roger

------<snip>-------
===> Validating dependencies for xfce-3.3.2
WARNING: Unknown object format for installed package gettext-0.10.* -
continuing
WARNING: Unknown object format for installed package gtk+-1.2.* - continuing
WARNING: Unknown object format for installed package gtk+-1.2.* - continuing
WARNING: Unknown object format for installed package jpeg-6b - continuing
WARNING: Unknown object format for installed package tiff-* - continuing
WARNING: Unknown object format for installed package tiff-* - continuing
------<snip>-------


When I finally finished building xfce, I also got a bunch of gtk errors
like so.

------<snip>-------
Gtk-CRITICAL **: file gtklabel.c: line 224 (gtk_label_new): assertion `str
!= NULL' failed.
Gtk-CRITICAL **: file gtkwidget.c: line 3146 (gtk_widget_set_name):
assertion `widget != NULL' failed.
Gtk-CRITICAL **: file gtkwidget.c: line 1434 (gtk_widget_show): assertion
`widget != NULL' failed.
Gtk-CRITICAL **: file gtkbox.c: line 331 (gtk_box_pack_start): assertion
`child != NULL' failed.
------<snip>-------