[ekiga] Correctly disconnect the connections in the preferences window code

[Julien Puydt <jpuydt src gnome org>]

commit a60c76f37754b7e26bcecb8e51fe46b87843b0d2
Author: Julien Puydt <jpuydt free fr>
Date:   Mon Jan 14 20:35:27 2013 +0100

    Correctly disconnect the connections in the preferences window code
    
    Those connections were stored for this very purpose after all...

 lib/engine/gui/gtk-frontend/preferences-window.cpp |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)
---
diff --git a/lib/engine/gui/gtk-frontend/preferences-window.cpp b/lib/engine/gui/gtk-frontend/preferences-window.cpp
index 7767462..71df968 100644
--- a/lib/engine/gui/gtk-frontend/preferences-window.cpp
+++ b/lib/engine/gui/gtk-frontend/preferences-window.cpp
@@ -58,6 +58,8 @@
 
 typedef struct _GmPreferencesWindow
 {
+  ~_GmPreferencesWindow();
+
   GtkWidget *audio_codecs_list;
   GtkWidget *sound_events_list;
   GtkWidget *audio_player;
@@ -72,6 +74,13 @@ typedef struct _GmPreferencesWindow
 
 #define GM_PREFERENCES_WINDOW(x) (GmPreferencesWindow *) (x)
 
+_GmPreferencesWindow::~_GmPreferencesWindow()
+{
+  for (std::vector<boost::signals::connection>::iterator iter = connections.begin ();
+       iter != connections.end ();
+       ++iter)
+    iter->disconnect ();
+}
 
 /* Declarations */