+/* wxRE_ADVANCED is not always available, depending on regex library used
+ * (it's unavailable only if compiling via configure against system library) */
+#ifndef WX_NO_REGEX_ADVANCED
+ #define wxHAS_REGEX_ADVANCED
+#else
+ #undef wxHAS_REGEX_ADVANCED
+#endif
+
+/* Pango-based ports and wxDFB use UTF-8 for text and font encodings
+ * internally and so their fonts can handle any encodings: */
+#if wxUSE_PANGO || defined(__WXDFB__)
+ #define wxHAS_UTF8_FONTS
+#endif
+
+/* This is defined when the underlying toolkit handles tab traversal natively.
+ Otherwise we implement it ourselves in wxControlContainer. */
+#ifdef __WXGTK20__
+ #define wxHAS_NATIVE_TAB_TRAVERSAL
+#endif
+
+/* This is defined when the compiler provides some type of extended locale
+ functions. Otherwise, we implement them ourselves to only support the
+ 'C' locale */
+#if defined(HAVE_LOCALE_T) || \
+ (wxCHECK_VISUALC_VERSION(8) && !defined(__WXWINCE__))
+ #define wxHAS_XLOCALE_SUPPORT
+#else
+ #undef wxHAS_XLOCALE_SUPPORT
+#endif
+