+#ifndef wxUSE_STD_CONTAINERS
+# ifdef wxABORT_ON_CONFIG_ERROR
+# error "wxUSE_STD_CONTAINERS must be defined, please read comment near the top of this file."
+# else
+# define wxUSE_STD_CONTAINERS 0
+# endif
+#endif /* !defined(wxUSE_STD_CONTAINERS) */
+
+#ifndef wxUSE_STD_STRING_CONV_IN_WXSTRING
+# ifdef wxABORT_ON_CONFIG_ERROR
+# error "wxUSE_STD_STRING_CONV_IN_WXSTRING must be defined, please read comment near the top of this file."
+# else
+# define wxUSE_STD_STRING_CONV_IN_WXSTRING 0
+# endif
+#endif /* !defined(wxUSE_STD_STRING_CONV_IN_WXSTRING) */
+