From 3b09b4e618308b59a9755758c113cbc46b542cbf Mon Sep 17 00:00:00 2001
From: Krystian Hebel <krystian.hebel@3mdeb.com>
Date: Mon, 20 Jan 2025 12:56:48 +0100
Subject: [PATCH] build.sh: print usage when no argument is passed

Without it, the script failed with cryptic error:

    $ ./build.sh
    ./build.sh: line 259: $1: unbound variable

Change-Id: I2472c3451d6754f978f39b23a3492ed369151861
Signed-off-by: Krystian Hebel <krystian.hebel@3mdeb.com>
---
 build.sh | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/build.sh b/build.sh
index 24f9da66a6..9b993984a7 100755
--- a/build.sh
+++ b/build.sh
@@ -358,6 +358,11 @@ function build_odroid_h4 {
   fi
 }
 
+if [ $# -lt 1 ]; then
+  usage
+  exit
+fi
+
 CMD="$1"
 
 case "$CMD" in