From 53b1afba0eb94f7f836b408d81da7b58c374dc3f Mon Sep 17 00:00:00 2001
From: Mike Gorse <mgorse@novell.com>
Date: Tue, 13 Mar 2012 16:02:30 -0500
Subject: [PATCH] Invalidate single_va_closure when adding an emission hook

If the optimization is used for only having one closure handling a
signal emission, then hooks will not be run, so it should be disabled
when an emission hook is added.

https://bugzilla.gnome.org/show_bug.cgi?id=671918
---
 gobject/gsignal.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/gobject/gsignal.c b/gobject/gsignal.c
index 8e067c3..7c90a7a 100644
--- a/gobject/gsignal.c
+++ b/gobject/gsignal.c
@@ -972,6 +972,7 @@ g_signal_add_emission_hook (guint               signal_id,
       SIGNAL_UNLOCK ();
       return 0;
     }
+    node->single_va_closure_is_valid = FALSE;
   if (!node->emission_hooks)
     {
       node->emission_hooks = g_new (GHookList, 1);
-- 
2.7.4