Issue #1746656: Add if_nameindex, if_nametoindex, if_indextoname
methods to the socket module.
diff --git a/pyconfig.h.in b/pyconfig.h.in
index c0cc7a1..b24c4b0 100644
--- a/pyconfig.h.in
+++ b/pyconfig.h.in
@@ -389,6 +389,9 @@
 /* Define to 1 if you have the <ieeefp.h> header file. */
 #undef HAVE_IEEEFP_H
 
+/* Define to 1 if you have the `if_nameindex' function. */
+#undef HAVE_IF_NAMEINDEX
+
 /* Define if you have the 'inet_aton' function. */
 #undef HAVE_INET_ATON