=== modified file 'stagebuilder.prolog'
--- stagebuilder.prolog	2011-11-25 03:26:16 +0000
+++ stagebuilder.prolog	2011-11-25 02:09:09 +0000
@@ -487,7 +487,7 @@
 
 get_portage_timestamp(Dir, variable(portage_timestamp)) -->
     {script_dir(Script)},
-    [run_outvar([Script +/+ portage_timestamp, '/usr/portage'],
+    [run_outvar([Script +/+ portage_timestamp, Dir +/+ 'usr/portage'],
                 portage_timestamp
                )].