From ae1cc3fd4e4e926dc9d84723ae2696b9799cfe9d Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Sun, 20 Dec 2020 14:28:55 +0900
Subject: [PATCH] Made an internal callback function static

---
 io.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/io.c b/io.c
index e42c2dcc0a..48592ac51a 100644
--- a/io.c
+++ b/io.c
@@ -11007,7 +11007,7 @@ struct wait_for_single_fd {
     VALUE result;
 };
 
-void *
+static void *
 rb_thread_scheduler_wait_for_single_fd(void * _args)
 {
     struct wait_for_single_fd *args = (struct wait_for_single_fd *)_args;