From a60aa668f373644a033925ff8f401d2fe9cce5a8 Mon Sep 17 00:00:00 2001
From: hujun5 <hujun5@xiaomi.com>
Date: Sun, 8 Oct 2023 14:52:51 +0800
Subject: [PATCH] lib_memfd: turn a runtime error into a linker error

Signed-off-by: hujun5 <hujun5@xiaomi.com>
---
 libs/libc/misc/lib_memfd.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libs/libc/misc/lib_memfd.c b/libs/libc/misc/lib_memfd.c
index 98046b753afa5..d53ed4f52d469 100644
--- a/libs/libc/misc/lib_memfd.c
+++ b/libs/libc/misc/lib_memfd.c
@@ -29,6 +29,7 @@
 #include <stdio.h>
 #include <unistd.h>
 
+#if defined(CONFIG_LIBC_MEMFD_TMPFS) || defined(CONFIG_LIBC_MEMFD_SHMFS)
 /****************************************************************************
  * Pre-processor Definitions
  ****************************************************************************/
@@ -73,3 +74,4 @@ int memfd_create(FAR const char *name, unsigned int flags)
   return ret;
 #endif
 }
+#endif
\ No newline at end of file