+#if !wxUSE_CONFIG
+# error "wxFileConfig is required by wxDFB port"
+#endif
+
+#if wxUSE_SOCKETS && !wxUSE_SELECT_DISPATCHER
+# ifdef wxABORT_ON_CONFIG_ERROR
+# error "wxSocket requires wxSelectDispatcher in wxDFB"
+# else
+# undef wxUSE_SELECT_DISPATCHER
+# define wxUSE_SELECT_DISPATCHER 1
+# endif
+#endif
+