From 963bc51c625670f4dcfb890e9fcebeafd74fa40c Mon Sep 17 00:00:00 2001
From: shilga <zeraphim@x-pantion.de>
Date: Thu, 5 Sep 2024 14:45:57 +0200
Subject: [PATCH] [realtek-ambz2] Fix C linkage for sys_now() in lwipopts
 (#286)

---
 cores/realtek-ambz2/base/config/lwipopts.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/cores/realtek-ambz2/base/config/lwipopts.h b/cores/realtek-ambz2/base/config/lwipopts.h
index 642ba3529..cc6ff0601 100644
--- a/cores/realtek-ambz2/base/config/lwipopts.h
+++ b/cores/realtek-ambz2/base/config/lwipopts.h
@@ -7,4 +7,11 @@
 #define sys_now sys_now_dummy
 #include_next "lwipopts.h"
 #undef sys_now
+
+#ifdef __cplusplus
+extern "C" {
+#endif
 extern unsigned long sys_now(void);
+#ifdef __cplusplus
+}
+#endif