# endif
#endif /* !defined(wxUSE_INTL) */
+#ifndef wxUSE_IPV6
+# ifdef wxABORT_ON_CONFIG_ERROR
+# error "wxUSE_IPV6 must be defined."
+# else
+# define wxUSE_IPV6 0
+# endif
+#endif /* !defined(wxUSE_IPV6) */
+
#ifndef wxUSE_LOG
# ifdef wxABORT_ON_CONFIG_ERROR
# error "wxUSE_LOG must be defined."