--- a/mercurial/cmdutil.py	Wed Jan 09 21:30:13 2008 +0900
+++ b/mercurial/cmdutil.py	Wed Jan 09 21:30:35 2008 +0900
@@ -462,7 +462,7 @@
         if len(pats) > 1 or util.patkind(pats[0], None)[0]:
             raise util.Abort(_('with multiple sources, destination must be an '
                                'existing directory'))
-        if dest.endswith(os.sep) or os.altsep and dest.endswith(os.altsep):
+        if util.endswithsep(dest):
             raise util.Abort(_('destination %s is not a directory') % dest)
 
     tfn = targetpathfn