From d79c8ef92f523462808ff7e5c2467716666582ae Mon Sep 17 00:00:00 2001
From: LIU Hao <lh_mouse@126.com>
Date: Fri, 29 Dec 2023 15:00:10 +0800
Subject: [PATCH] thread: Move a declaration into `#if` block where it is used

---
 mcfgthread/thread.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mcfgthread/thread.h b/mcfgthread/thread.h
index 0730f05df6..c06fef4d7e 100644
--- a/mcfgthread/thread.h
+++ b/mcfgthread/thread.h
@@ -293,7 +293,6 @@ uint32_t
 _MCF_thread_self_tid(void) __MCF_NOEXCEPT
   {
     uint32_t __tid;
-    char* __teb __attribute__((__unused__));
 #if defined(__amd64__)
     /* Current TEB starts at `gs:0`.  */
     __asm__ ("{ movl %%gs:0x48, %0 | mov %0, dword ptr gs:[0x48] }" : "=r"(__tid));
@@ -305,6 +304,7 @@ _MCF_thread_self_tid(void) __MCF_NOEXCEPT
     __asm__ ("ldr %w0, [x18, #0x48]" : "=r"(__tid));
 #elif defined(__arm__)
     /* Current TEB base is moved from co-processor p15.  */
+    char* __teb;
     __asm__ ("mrc p15, #0, %0, c13, c0, #2" : "=r"(__teb));
     __tid = *(uint32_t*) (__teb + 0x24);
 #else