From 3098c0eb0b274f342a98e90125ed3e007de797c2 Mon Sep 17 00:00:00 2001
From: kojix2 <2xijok@gmail.com>
Date: Sat, 11 Jan 2025 20:41:28 +0900
Subject: [PATCH] Use internal at_exit handler to release the alternate signal
 stack

---
 src/crystal/system/unix/signal.cr | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/crystal/system/unix/signal.cr b/src/crystal/system/unix/signal.cr
index 090b2ea59480..2d1bd119c3b8 100644
--- a/src/crystal/system/unix/signal.cr
+++ b/src/crystal/system/unix/signal.cr
@@ -227,7 +227,7 @@ module Crystal::System::Signal
     altstack.ss_flags = 0
     LibC.sigaltstack(pointerof(altstack), nil)
 
-    at_exit {
+    Crystal::AtExitHandlers.__crystal_add ->(s : Int32, e : ::Exception?) {
       reset_signal_stack(pointerof(altstack))
     }