From ef78536cf0c13333234c19b0af959beb65d7e105 Mon Sep 17 00:00:00 2001
From: Koichi Sasada <ko1@atdot.net>
Date: Tue, 10 Oct 2023 18:27:22 +0900
Subject: [PATCH] WIP enables if USE_MN_THREADS

---
 thread_pthread.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/thread_pthread.c b/thread_pthread.c
index ff09087ceb1fe6..c20d6a727504dc 100644
--- a/thread_pthread.c
+++ b/thread_pthread.c
@@ -1094,7 +1094,9 @@ rb_thread_sched_init(struct rb_thread_sched *sched, bool atfork)
     ccan_list_head_init(&sched->readyq);
     sched->readyq_cnt = 0;
 
+#if USE_MN_THREADS
     if (!atfork) sched->enable_mn_threads = true; // MN is enabled on Ractors
+#endif
 }
 
 static void