https://github.com/rakshasa/libtorrent/issues/841

--- src/torrent/system/system.cc.orig	2026-07-17 09:47:03 UTC
+++ src/torrent/system/system.cc
@@ -8,6 +8,7 @@
 #include "torrent/system/callbacks.h"
 #include "torrent/system/thread.h"
 #include "torrent/system/types.h"
+#include <sys/socket.h>
 
 namespace torrent::system {