From 428f164d02dc965e4ac2ef0f3e8f18193eb80b9f Mon Sep 17 00:00:00 2001
From: Bob-the-Kuhn <bob.kuhn@att.net>
Date: Sun, 4 Feb 2018 16:11:27 -0600
Subject: [PATCH] [2.0.x] Bug fix - "M114 D" and Due (dtostrf C linkage)
 (#9481)

---
 Marlin/src/HAL/HAL_DUE/HAL_Due.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Marlin/src/HAL/HAL_DUE/HAL_Due.h b/Marlin/src/HAL/HAL_DUE/HAL_Due.h
index 8c31ece354..604fa79aa0 100644
--- a/Marlin/src/HAL/HAL_DUE/HAL_Due.h
+++ b/Marlin/src/HAL/HAL_DUE/HAL_Due.h
@@ -170,6 +170,7 @@ extern "C" {
 #endif
 void HAL_idletask(void);
 void HAL_init(void);
+char *dtostrf (double __val, signed char __width, unsigned char __prec, char *__s);
 #ifdef __cplusplus
 }
 #endif
-- 
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