From 4d490359e7f358f6de9ea396d0bafefda5c56607 Mon Sep 17 00:00:00 2001
From: DrZiplok <DrZiplok@f9c3cf11-9bcb-44bc-f272-b75c42450872>
Date: Wed, 29 Dec 2010 22:39:39 +0000
Subject: [PATCH] Try to find the AVR tools on Linux

git-svn-id: https://arducopter.googlecode.com/svn/trunk@1363 f9c3cf11-9bcb-44bc-f272-b75c42450872
---
 libraries/AP_Common/Arduino.mk | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/libraries/AP_Common/Arduino.mk b/libraries/AP_Common/Arduino.mk
index f3882427aa..be7e0099f2 100644
--- a/libraries/AP_Common/Arduino.mk
+++ b/libraries/AP_Common/Arduino.mk
@@ -95,6 +95,7 @@ ifeq ($(ARDUINO),)
   ifeq ($(SYSTYPE),Linux)
     ARDUINO_SEARCHPATH	=	/usr/share/arduino /usr/local/share/arduino
     ARDUINOS		:=	$(wildcard $(ARDUINO_SEARCHPATH))
+    TOOLPATH		:=	$(subst ;, ,$(PATH))
   endif
 
   #
@@ -128,6 +129,10 @@ AR			=	$(call FIND_TOOL,avr-ar)
 LD			=	$(call FIND_TOOL,avr-gcc)
 OBJCOPY			=	$(call FIND_TOOL,avr-objcopy)
 
+ifeq ($(CXX),)
+$(error ERROR: cannot find the compiler tools anywhere on the path $(TOOLPATH))
+endif
+
 #
 # Tool options
 #