From 9133f889fa02351e59df3b42a728da0e9ce56ed0 Mon Sep 17 00:00:00 2001
From: hyphop <art@khadas.com>
Date: Sat, 20 Jun 2020 02:46:39 +0800
Subject: [PATCH] Sat 20 Jun 2020 02:46:39 AM CST

---
 scripts/kernel_prepare_soft | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/scripts/kernel_prepare_soft b/scripts/kernel_prepare_soft
index 141c6a2..5fd2250 100755
--- a/scripts/kernel_prepare_soft
+++ b/scripts/kernel_prepare_soft
@@ -45,8 +45,15 @@ DL(){
 
 }
 
-#exit 0
+flex=$(which flex 2>/dev/null)
 
+[ "$flex" ] || {
+    echo "[i] flex not found , need to install flex"
+    echo "	sudo apt-get install flex"
+    exit 1
+}
+
+#exit 0
 
 for LINK in $GCC_SRC; do
 
@@ -105,3 +112,4 @@ tar -xf "$TO$FILE" -C "$T" --strip-components=1 || exit 1
 echo "OK ready">&2
 
 done
+