--- wxWidgets-3.0.0/src/gtk/app.cpp~ 2013-11-11 14:10:39.000000000 +0100 +++ wxWidgets-3.0.0/src/gtk/app.cpp 2014-01-19 16:44:33.612093277 +0100 @@ -168,7 +168,7 @@ // Access to the root window global //----------------------------------------------------------------------------- -GtkWidget* wxGetRootWindow() +WXDLLIMPEXP_CORE GtkWidget* wxGetRootWindow() { static GtkWidget *s_RootWindow = NULL;