Ignore unused beeper pins

11 years ago · 9a1c90471f
1 changed files with 1 additions and 1 deletions
--- a/Marlin/Marlin_main.cpp
+++ b/Marlin/Marlin_main.cpp
@ -1425,7 +1425,7 @@ void process_commands()
    }
    break;

-    #ifdef BEEPER
+    #if defined(BEEPER) && BEEPER > -1
    case 300: // M300
    {
      int beepS = 1;