From 37a2c97ef75d447bb749a7cec3c471ad258ccbd8 Mon Sep 17 00:00:00 2001
From: Max Linke <max_linke@gmx.de>
Date: Mon, 26 Dec 2016 12:22:44 +0100
Subject: [PATCH] Allow env overwrite of ARDUINO_* vars

This allows to call make with `ARDUINO_PATH=/custom/install/loc make` to avoid
having to modify the Makefile when the arduino components are installed in non
standard installation paths.
---
 Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index 8e9d9a5a..2fe64279 100644
--- a/Makefile
+++ b/Makefile
@@ -5,8 +5,8 @@ uname_S := $(shell sh -c 'uname -s 2>/dev/null || echo not')
 
 DEVICE_PORT := `ls /dev/ttyACM*`
 DEVICE_PORT_BOOTLOADER := `ls /dev/ttyACM*`
-ARDUINO_PATH=/usr/local/arduino
-ARDUINO_LOCAL_LIB_PATH=$(HOME)/Arduino
+ARDUINO_PATH?=/usr/local/arduino
+ARDUINO_LOCAL_LIB_PATH?=$(HOME)/Arduino
 
 MD5 = md5sum