Rebuild when build-time/run-time deps are upgraded.

pym/_emerge/UnmergeDepPriority.py

 # Copyright 1999-2009 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
 
 from _emerge.AbstractDepPriority import AbstractDepPriority
 class UnmergeDepPriority(AbstractDepPriority):
-        __slots__ = ("optional", "satisfied",)
+        __slots__ = ("ignored", "optional", "satisfied",)
         """
         Combination of properties           Priority  Category
 
         runtime                                0       HARD
         runtime_post                          -1       HARD
         buildtime                             -2       SOFT
         (none of the above)                   -2       SOFT
         """
 
         MAX    =  0
         SOFT   = -2
         MIN    = -2
 
         def __init__(self, **kwargs):
                 AbstractDepPriority.__init__(self, **kwargs)
                 if self.buildtime:
                         self.optional = True
 
         def __int__(self):
                 if self.runtime:
                         return 0
                 if self.runtime_post:
                         return -1
                 if self.buildtime:
                         return -2
                 return -2
 
         def __str__(self):
+                if self.ignored:
+                        return "ignored"
                 myvalue = self.__int__()
                 if myvalue > self.SOFT:
                         return "hard"
                 return "soft"