From 65bd63206900c0660ac5eb9465a4ffdacb9e51ec Mon Sep 17 00:00:00 2001
From: Christian Marangi <ansuelsmth@gmail.com>
Date: Sun, 17 Jul 2022 17:56:36 +0200
Subject: scripts: ext-toolchain: add support for info.mk in probe_cc

Openwrt generate info.mk that contains the libc type. For probe_cc check
if the file exist and parse directly it for LIBC type.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
(cherry picked from commit 75311977f5ff64b491cb57ac713d75e0e410d786)
---
 scripts/ext-toolchain.sh | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/scripts/ext-toolchain.sh b/scripts/ext-toolchain.sh
index 1ef3f42c50..1f8eca3076 100755
--- a/scripts/ext-toolchain.sh
+++ b/scripts/ext-toolchain.sh
@@ -463,6 +463,13 @@ probe_cpp() {
 }
 
 probe_libc() {
+	if [ -f $TOOLCHAIN/info.mk ]; then
+		LIBC_TYPE=$(grep LIBC_TYPE $TOOLCHAIN/info.mk | sed 's/LIBC_TYPE=//')
+		return 0
+	fi
+
+	echo "Warning! Can't find info.mk, trying to detect with alternative way."
+
 	if [ -z "$LIBC_TYPE" ]; then
 		if test_uclibc; then
 			LIBC_TYPE="uclibc"
-- 
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