this patch is needed to compile against libevent2.

--- links-2.30/select.c.orig	2022-05-27 20:52:39.000000000 +0200
+++ links-2.30/select.c	2025-06-11 14:59:36.186473794 +0200
@@ -4,6 +4,7 @@
  * This file is a part of the Links program, released under GPL.
  */
 
+#include <event2/event_compat.h>
 #include "links.h"
 
 /*