Fix crashes on x-thread signal emission.

Fix crashes on x-thread signal emission if the emitting object
is destroyed between the storage of the message on the queue
and the emission of the object in the UI thread.

1 files changed, 2 insertions, 1 deletions

diff --git a/src/lib/update.h b/src/lib/update.h
index 5bb9e9501..461217a37 100644
--- a/src/lib/update.h
+++ b/src/lib/update.h
@@ -21,6 +21,7 @@
  *  @brief UpdateChecker class.
  */
 
+#include "signaller.h"
 #include <curl/curl.h>
 #include <boost/signals2.hpp>
 #include <boost/thread/mutex.hpp>
@@ -30,7 +31,7 @@
 struct update_checker_test;
 
 /** Class to check for the existance of an update for DCP-o-matic on a remote server */
-class UpdateChecker : public boost::noncopyable
+class UpdateChecker : public Signaller, public boost::noncopyable
 {
 public:
 	UpdateChecker ();