[bug-buddy] Do not call old log_handler if it is not glib's default See https://bugzilla.gnome.org/show_bug.cgi?

[Fernando Herrera de las Heras <fherrera src gnome org>]

commit 475fa5697d0aad6883318e9c51af81f51c9030e4
Author: Fernando Herrera <fherrera onirica com>
Date:   Tue Jun 22 22:18:23 2010 +0200

    Do not call old log_handler if it is not glib's default
    See https://bugzilla.gnome.org/show_bug.cgi?id=622068

 segv_handler/gnome-segvhanlder.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)
---
diff --git a/segv_handler/gnome-segvhanlder.c b/segv_handler/gnome-segvhanlder.c
index de64df5..ae3196e 100644
--- a/segv_handler/gnome-segvhanlder.c
+++ b/segv_handler/gnome-segvhanlder.c
@@ -284,6 +284,13 @@ gtk_module_init (int *argc, char** argv[])
                 	sigaction(SIGBUS, setptr, NULL);
 
 		old_handler = g_log_set_default_handler (bug_buddy_log_handler, NULL);
+
+		/* We cannot call previous log handlers other than glib's default
+                 * because we don't know its previous user_data and they may rely on it
+                 * See https://bugzilla.gnome.org/show_bug.cgi?id=622068 */
+		if (old_handler != g_log_default_handler) {
+			old_handler = NULL;
+		}
 	}
 	return 0;
 }