From 5833e02e2f495e2f70af596351b74f349afa2ec3 Mon Sep 17 00:00:00 2001
From: rcitach <yearsince@yeah.net>
Date: Fri, 25 Apr 2025 09:43:32 +0800
Subject: [PATCH] Fix Aarch64 architecture runtime issues
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该问题由5b3320624da5149fc21c2d3e1f321d855e3d0dfe引入，导致工具链编译时加上了 -std=gnu99,其他架构是否出问题暂时未知
---
 libcpu/aarch64/SConscript | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/libcpu/aarch64/SConscript b/libcpu/aarch64/SConscript
index c4dd45682c..5dece501d9 100644
--- a/libcpu/aarch64/SConscript
+++ b/libcpu/aarch64/SConscript
@@ -24,4 +24,12 @@ group = group + SConscript(os.path.join('common', 'SConscript'))
 if rtconfig.CPU != 'common':
     group = group + SConscript(os.path.join(rtconfig.CPU, 'SConscript'))
 
+def del_gnu99():
+    for g in Projects:
+        if g["name"] == "Kernel":
+            flags = re.sub(r'\s+', ' ', re.sub(r'\s*-std=gnu99\s*', ' ', g["LOCAL_CFLAGS"])).strip()
+            flags = re.sub(r'(?<!\s)(-Wunused)', r' \1', flags)
+            g["LOCAL_CFLAGS"] = flags
+
+RegisterPreBuildingAction(del_gnu99)
 Return('group')