From 39c3538512a051410cbc2fdafac66274338e754b Mon Sep 17 00:00:00 2001
From: Yorick Hardy <yorickhardy@gmail.com>
Date: Fri, 17 Jan 2025 06:09:43 +0200
Subject: [PATCH] runtime: clear the thread_key before exiting the thread

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

diff --git a/runtime.c b/runtime.c
index 663cb328..f75b0ca0 100644
--- a/runtime.c
+++ b/runtime.c
@@ -7189,6 +7189,8 @@ void Cyc_exit_thread(void *data, object _, int argc, object * args)
   gc_remove_mutator(thd);
   ck_pr_cas_int((int *)&(thd->thread_state), CYC_THREAD_STATE_RUNNABLE,
                 CYC_THREAD_STATE_TERMINATED);
+  // we are exiting, the destructor does not need to be called
+  pthread_setspecific(cyclone_thread_key, (void (*)(void *))NULL);
   pthread_exit(NULL);
 }