workaround changes in glibmm 2.49.x

[ardour.git] / libs / gtkmm2ext / actions.cc

diff --git a/libs/gtkmm2ext/actions.cc b/libs/gtkmm2ext/actions.cc
index 3aa36b98db28f6c219606891ea744a2b917bb19d..840c9dc4a29012285b62468f8907b813e5f9163a 100644 (file)
--- a/libs/gtkmm2ext/actions.cc
+++ b/libs/gtkmm2ext/actions.cc
@@ -167,7 +167,7 @@ ActionManager::get_action (const char* group_name, const char* action_name)
           gtkmm2.6, so we fall back to the C level.
        */
 
-       if (ui_manager == 0) {
+       if (! ui_manager) {
                return RefPtr<Action> ();
        }