From c05f60a600b2f61798124ea6f32a1c8f9d32731e Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Sat, 1 Jun 2024 16:25:12 +0900
Subject: [PATCH] Suppress -Wclobbered warning for BLOCKING_REGION

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

diff --git a/thread.c b/thread.c
index 153e172037..7034c21f29 100644
--- a/thread.c
+++ b/thread.c
@@ -1541,10 +1541,12 @@ rb_nogvl(void *(*func)(void *), void *data1,
         }
     }
 
+    rb_vm_t *volatile saved_vm = vm;
     BLOCKING_REGION(th, {
         val = func(data1);
         saved_errno = rb_errno();
     }, ubf, data2, flags & RB_NOGVL_INTR_FAIL);
+    vm = saved_vm;
 
     if (is_main_thread) vm->ubf_async_safe = 0;