Add a caution to drivers.h

0b454935 · Scott Lahteine · 18a72769 · 0b454935
Commit 0b454935 authored 5 years ago by Scott Lahteine
--- a/Marlin/src/core/drivers.h
+++ b/Marlin/src/core/drivers.h
@@ -21,7 +21,10 @@
 */
 #pragma once

-#include "../inc/MarlinConfigPre.h"
+//
+// Included by MarlinConfigPre.h ahead of Configuration_adv.h.
+// Don't use #if in this file for anything not defined early!
+//

 #define _A4988              0x4988
 #define _A5984              0x5984