From b04076d8aa49c7f795ec5825df06f07aaaca4c7a Mon Sep 17 00:00:00 2001
From: Meco Man <920369182@qq.com>
Date: Wed, 17 Aug 2022 09:55:03 -0400
Subject: [PATCH] [armlibc] solve the compiling error

report in #6300
---
 components/libc/compilers/armlibc/syscalls.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/components/libc/compilers/armlibc/syscalls.c b/components/libc/compilers/armlibc/syscalls.c
index 2c53310771..26ba3796fa 100644
--- a/components/libc/compilers/armlibc/syscalls.c
+++ b/components/libc/compilers/armlibc/syscalls.c
@@ -253,7 +253,12 @@ int _sys_write(FILEHANDLE fh, const unsigned char *buf, unsigned len, int mode)
  */
 int _sys_ensure(FILEHANDLE fh)
 {
+#ifdef DFS_USING_POSIX
     return fsync(fh);
+#else
+    LOG_W("%s: %s", __func__, _WARNING_WITHOUT_FS);
+    return 0; /* error */
+#endif /* DFS_USING_POSIX */
 }
 
 /*
-- 
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