From 3e77322649e34b8a47539b6f766782ad4ad85316 Mon Sep 17 00:00:00 2001
From: wdfk-prog <1425075683@qq.com>
Date: Sat, 21 Sep 2024 19:45:02 +0800
Subject: [PATCH] fix:Disable "-Wimplicit-fallthrough" below GNUC V7

---
 src/klibc/kstdio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/klibc/kstdio.c b/src/klibc/kstdio.c
index 44ff758e92c..879a938b6a0 100644
--- a/src/klibc/kstdio.c
+++ b/src/klibc/kstdio.c
@@ -287,7 +287,7 @@ static char *print_number(char *buf,
     return buf;
 }
 
-#if defined(__GNUC__) && !defined(__ARMCC_VERSION) /* GCC */
+#if defined(__GNUC__) && (__GNUC__ >= 7) && !defined(__ARMCC_VERSION) /* GCC */
 #pragma GCC diagnostic push
 /* ignore warning: this statement may fall through */
 #pragma GCC diagnostic ignored "-Wimplicit-fallthrough"