+/* If the (nonstandard and thread-safe) function gethostbyname_r
+ * is available, select which signature to use
+ */
+#undef HAVE_GETHOSTBYNAME_R_6_ARGS
+#undef HAVE_GETHOSTBYNAME_R_5_ARGS
+#undef HAVE_GETHOSTBYNAME_R_3_ARGS
+
+/* If the (nonstandard and thread-safe) function gethostbyaddr_r
+ * is available, select which signature to use
+ */
+#undef HAVE_GETHOSTBYADDR_R_8_ARGS
+#undef HAVE_GETHOSTBYADDR_R_7_ARGS
+#undef HAVE_GETHOSTBYADDR_R_5_ARGS
+
+/* Define if you have gmtime_r and localtime_r with a signature
+ * of (struct time *, struct tm *)
+ */
+#undef HAVE_GMTIME_R
+#undef HAVE_LOCALTIME_R
+