From 8dcc28c9ae1dead09367d76674ec81382e73b8b8 Mon Sep 17 00:00:00 2001
From: Marcio Teixeira <marcio@alephobjects.com>
Date: Thu, 20 Dec 2018 14:34:24 -0700
Subject: [PATCH] Squelch warning mentioned in #11061 (#12676)

---
 Marlin/src/module/planner.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/Marlin/src/module/planner.cpp b/Marlin/src/module/planner.cpp
index 9c618096c5..22a086ac56 100644
--- a/Marlin/src/module/planner.cpp
+++ b/Marlin/src/module/planner.cpp
@@ -1598,8 +1598,10 @@ void Planner::synchronize() {
       if (!changed_dir) return;
     #endif
 
-    const bool positive[XYZ] = {  da > 0,  db > 0, dc > 0 },
-               non_zero[XYZ] = { da != 0, db != 0, dc != 0 };
+    const bool positive[XYZ] = {  da > 0,  db > 0, dc > 0 };
+    #ifdef BACKLASH_SMOOTHING_MM
+      const bool non_zero[XYZ] = { da != 0, db != 0, dc != 0 };
+    #endif
     bool made_adjustment = false;
 
     LOOP_XYZ(i) {