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--- a/libupnpp/config.h.in
+++ b/libupnpp/config.h.in
@@ -2,6 +2,9 @@
 
 /* Define to 1 if you have the <dlfcn.h> header file. */
 #undef HAVE_DLFCN_H
+
+/* Define to 1 if you have the `getifaddrs' function. */
+#undef HAVE_GETIFADDRS
 
 /* Define to 1 if you have the <inttypes.h> header file. */
 #undef HAVE_INTTYPES_H