Don't use the [] notation here to test for the existence of a map member,

because this creates an empty entry if it didn't exist. This made the
activation of the dialog mandatory before the next gui subsystem update()
happened. Otherwise fgfs segfaulted.

diff --git a/src/GUI/new_gui.cxx b/src/GUI/new_gui.cxx
index f45b17ba761e5c3ec3a2618336ba6b4b26ed119c..d8658d3d61b24d77a62f9b15375e8ca7d0c3c7ad 100644 (file)
--- a/src/GUI/new_gui.cxx
+++ b/src/GUI/new_gui.cxx
@@ -219,7 +219,7 @@ NewGUI::newDialog (SGPropertyNode* props)
         return;
     }
     string name = cname;
-    if(!_active_dialogs[name])
+    if(_active_dialogs.find(name) == _active_dialogs.end())
         _dialog_props[name] = props;
 }