From 75d0ffe4e5b7659e20bbbdcc1e840e06dfe7a138 Mon Sep 17 00:00:00 2001
From: Lorenz Meier <lm@inf.ethz.ch>
Date: Sun, 2 Nov 2014 12:34:33 +0100
Subject: Build fix

---
 src/modules/px4iofirmware/px4io.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/modules/px4iofirmware/px4io.c b/src/modules/px4iofirmware/px4io.c
index f978ff406..30f32b38e 100644
--- a/src/modules/px4iofirmware/px4io.c
+++ b/src/modules/px4iofirmware/px4io.c
@@ -124,7 +124,9 @@ heartbeat_blink(void)
 {
 	static bool heartbeat = false;
 	LED_BLUE(heartbeat = !heartbeat);
+#ifdef GPIO_LED4
 	LED_RING(heartbeat);
+#endif
 }
 
 static uint64_t reboot_time;
@@ -192,7 +194,9 @@ user_start(int argc, char *argv[])
 	LED_AMBER(false);
 	LED_BLUE(false);
 	LED_SAFETY(false);
+#ifdef GPIO_LED4
 	LED_RING(false);
+#endif
 
 	/* turn on servo power (if supported) */
 #ifdef POWER_SERVO
-- 
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