From 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 22 Oct 2024 10:36:11 +0000
Subject: [PATCH] 修改4g拨号为QMI,需要在系统里后台执行quectel-CM

---
 kernel/tools/testing/selftests/x86/check_cc.sh |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/tools/testing/selftests/x86/check_cc.sh b/kernel/tools/testing/selftests/x86/check_cc.sh
index 172d329..8c669c0 100755
--- a/kernel/tools/testing/selftests/x86/check_cc.sh
+++ b/kernel/tools/testing/selftests/x86/check_cc.sh
@@ -1,13 +1,13 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0-only
 # check_cc.sh - Helper to test userspace compilation support
 # Copyright (c) 2015 Andrew Lutomirski
-# GPL v2
 
 CC="$1"
 TESTPROG="$2"
 shift 2
 
-if "$CC" -o /dev/null "$TESTPROG" -O0 "$@" 2>/dev/null; then
+if [ -n "$CC" ] && $CC -o /dev/null "$TESTPROG" -O0 "$@" 2>/dev/null; then
     echo 1
 else
     echo 0

--
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