From 44e4ef79e28e3757df27d7e87570bb04c2a5aa34 Mon Sep 17 00:00:00 2001
From: Jakob Hasse <jakob.hasse@espressif.com>
Date: Wed, 9 Aug 2023 14:11:22 +0800
Subject: [PATCH] fix(esp_system): Fixed C++ compilation of libunwind.h

---
 components/esp_system/include/libunwind.h | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/components/esp_system/include/libunwind.h b/components/esp_system/include/libunwind.h
index a91de95965..09c4d6247d 100644
--- a/components/esp_system/include/libunwind.h
+++ b/components/esp_system/include/libunwind.h
@@ -4,8 +4,7 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
-#ifndef LIBUNWIND_H
-#define LIBUNWIND_H
+#pragma once
 
 #include "sdkconfig.h"
 #include <stddef.h>
@@ -132,4 +131,6 @@ int unw_get_reg(unw_cursor_t* cp, unw_regnum_t reg, unw_word_t* valp);
  */
 int unw_set_reg(unw_cursor_t* cp, unw_regnum_t reg, unw_word_t val);
 
-#endif // LIBUNWIND_H
+#ifdef __cplusplus
+}
+#endif