[patch] fix --backtrack=0 to work properly (see issue in comment #3)

backtrack_0.patch (text/plain), 873 bytes, created by Zac Medico on 2013-08-07 19:28:52 UTC

From c6679936d162f35a330ce541ec4cd0567ccf76d8 Mon Sep 17 00:00:00 2001
From: Zac Medico <[e-mail]>
Date: Sun, 4 Aug 2013 13:21:19 -0700
Subject: [PATCH] depgraph: trigger reinstalls if backtrack allowed

This should fix cases where it tries to backtrack but simply aborts
with --backtrack=0.
---
 pym/_emerge/depgraph.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/pym/_emerge/depgraph.py b/pym/_emerge/depgraph.py
index 4f9d0f0..7b77edc 100644
--- a/pym/_emerge/depgraph.py
+++ b/pym/_emerge/depgraph.py
@@ -5863,7 +5863,8 @@ class depgraph(object):
 
 		self._process_slot_conflicts()
 
-		self._slot_operator_trigger_reinstalls()
+		if self._dynamic_config._allow_backtracking:
+			self._slot_operator_trigger_reinstalls()
 
 		if not self._validate_blockers():
 			# Blockers don't trigger the _skip_restart flag, since
-- 
1.8.1.5