From c92d6724d711acccacf917a63b683fa10812e876 Mon Sep 17 00:00:00 2001
From: Sudar <sudar@sudarmuthu.com>
Date: Fri, 9 Aug 2013 21:36:22 +0530
Subject: Autodetect baudrate only if either a .ino/.pde is present

Because of the way the autodetect code works, if no .ino/.pde file is
present, then the makefile hangs
---
 arduino-mk/Arduino.mk | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'arduino-mk/Arduino.mk')

diff --git a/arduino-mk/Arduino.mk b/arduino-mk/Arduino.mk
index 62ef75b..23e621b 100644
--- a/arduino-mk/Arduino.mk
+++ b/arduino-mk/Arduino.mk
@@ -657,8 +657,10 @@ endif
 #
 ifeq ($(strip $(NO_CORE)),)
     ifndef MONITOR_BAUDRATE
-        SPEED = $(shell egrep -h 'Serial.begin\([0-9]+\)' $(LOCAL_PDE_SRCS) $(LOCAL_INO_SRCS) | sed -e 's/[^0-9]//g'| head -n1)
-        MONITOR_BAUDRATE = $(findstring $(SPEED),300 1200 2400 4800 9600 14400 19200 28800 38400 57600 115200)
+        ifeq ($(words $(LOCAL_PDE_SRCS) $(LOCAL_INO_SRCS)), 1)
+            SPEED = $(shell egrep -h 'Serial.begin\([0-9]+\)' $(LOCAL_PDE_SRCS) $(LOCAL_INO_SRCS) | sed -e 's/[^0-9]//g'| head -n1)
+            MONITOR_BAUDRATE = $(findstring $(SPEED),300 1200 2400 4800 9600 14400 19200 28800 38400 57600 115200)
+        endif
 
         ifeq ($(MONITOR_BAUDRATE),)
             MONITOR_BAUDRATE = 9600
-- 
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