Only call altlist() to validate blockers when necessary.

svn path=/main/trunk/; revision=4759

diff --git a/bin/emerge b/bin/emerge
index e995eed04ca82fd6f3a3035c7d9da9c4d9b116c0..83ac67baf231a18e0d774870f66daa15b00d024b 100755 (executable)
--- a/bin/emerge
+++ b/bin/emerge
@@ -1467,7 +1467,8 @@ class depgraph:
                                                self.blocker_digraph.addnode(node, blocker)
                                self.digraph.remove(blocker)
                # Validate blockers that depend on merge order.
-               self.altlist()
+               if not self.blocker_digraph.empty():
+                       self.altlist()
 
        def altlist(self, reversed=False):
                mygraph=self.digraph.copy()