+#if wxUSE_CHOICEBOOK
+# if !wxUSE_CHOICE
+# ifdef wxABORT_ON_CONFIG_ERROR
+# error "wxChoicebook requires wxChoice"
+# else
+# undef wxUSE_CHOICE
+# define wxUSE_CHOICE 1
+# endif
+# endif
+#endif /* wxUSE_CHOICEBOOK */
+
+/* don't attempt to use native status bar on the platforms not having it */
+#ifndef wxUSE_NATIVE_STATUSBAR
+# define wxUSE_NATIVE_STATUSBAR 0
+#elif wxUSE_NATIVE_STATUSBAR
+# if defined(__WXUNIVERSAL__) || !( defined(__WXMSW__) || \
+ defined(__WXMAC__) || \
+ defined(__WXPALMOS__) )
+# undef wxUSE_NATIVE_STATUSBAR
+# define wxUSE_NATIVE_STATUSBAR 0
+# endif
+#endif
+