From c6f1337f5c871843af7d2905b1eed0e217078cdb Mon Sep 17 00:00:00 2001
From: Scott Lahteine <sourcetree@thinkyhead.com>
Date: Thu, 28 Apr 2016 17:59:52 -0700
Subject: [PATCH] NOOP macro for do-nothing macros

---
 Marlin/macros.h   | 2 ++
 Marlin/ultralcd.h | 4 ++--
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/Marlin/macros.h b/Marlin/macros.h
index 5f53ee987c..69ecc6fdb8 100644
--- a/Marlin/macros.h
+++ b/Marlin/macros.h
@@ -60,4 +60,6 @@
 #define PENDING(NOW,SOON) ((long)(NOW-(SOON))<0)
 #define ELAPSED(NOW,SOON) (!PENDING(NOW,SOON))
 
+#define NOOP do{}while(0)
+
 #endif //__MACROS_H
diff --git a/Marlin/ultralcd.h b/Marlin/ultralcd.h
index 9665c2ce9c..e20f5cc332 100644
--- a/Marlin/ultralcd.h
+++ b/Marlin/ultralcd.h
@@ -156,8 +156,8 @@
   FORCE_INLINE void lcd_reset_alert_level() {}
   FORCE_INLINE bool lcd_detected(void) { return true; }
 
-  #define LCD_MESSAGEPGM(x) do{}while(0)
-  #define LCD_ALERTMESSAGEPGM(x) do{}while(0)
+  #define LCD_MESSAGEPGM(x) NOOP
+  #define LCD_ALERTMESSAGEPGM(x) NOOP
 
 #endif //ULTRA_LCD