From b2e742bb09df9bdead90ddaae450886b74e8b11f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rapha=C3=ABl=20Proust?=
 <raphael-proust@users.noreply.github.com>
Date: Thu, 10 Oct 2024 15:32:10 +0200
Subject: [PATCH] Update src/unix/lwt_unix.h

---
 src/unix/lwt_unix.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/unix/lwt_unix.h b/src/unix/lwt_unix.h
index 125ca7a12..ab4ad64bf 100644
--- a/src/unix/lwt_unix.h
+++ b/src/unix/lwt_unix.h
@@ -14,6 +14,9 @@
 #include <caml/socketaddr.h>
 #include <string.h>
 
+// The following macro is for backwards compatibility.
+// It is given an `lwt_` prefix to avoid name collisions for code which
+// include both this file and alloc.h.
 #if OCAML_VERSION < 50000
 #define lwt_convert_flag_list(flags, table) \
     caml_convert_flag_list((flags), (int *)(table))