From 34e5a2da18f76c7d7de79a5c12b0e85ee89c4095 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Tue, 21 Jul 2015 18:20:33 +0200
Subject: Fix postponed re-examination logic

Now postponed takes precedence over changed.
---
 build/algorithm.ixx | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'build/algorithm.ixx')

diff --git a/build/algorithm.ixx b/build/algorithm.ixx
index 4581d5b..7849713 100644
--- a/build/algorithm.ixx
+++ b/build/algorithm.ixx
@@ -108,7 +108,10 @@ namespace build
   inline target_state
   execute (action a, target& t)
   {
-    t.dependents--;
+    // This can happen when we re-examine the state after being postponed.
+    //
+    if (t.dependents != 0)
+      t.dependents--;
 
     switch (target_state ts = t.state ())
     {
-- 
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