Hide M117 with no LCD

Marlin/Marlin_main.cpp

@@ -741,23 +741,31 @@ void get_command() {
     }
   #endif
 
-  while (MYSERIAL.available() > 0 && commands_in_queue < BUFSIZE) {
+  //
+  // Loop while serial characters are incoming and the queue is not full
+  //
+  while (commands_in_queue < BUFSIZE && MYSERIAL.available() > 0) {
+
     #ifdef NO_TIMEOUTS
       last_command_time = ms;
     #endif
+
     serial_char = MYSERIAL.read();
 
-    if (serial_char == '\n' || serial_char == '\r' ||
+    //
-       serial_count >= (MAX_CMD_SIZE - 1)
+    // If the character ends the line, or the line is full...
-    ) {
+    //
+    if (serial_char == '\n' || serial_char == '\r' || serial_count >= MAX_CMD_SIZE-1) {
+
       // end of line == end of comment
       comment_mode = false;
 
-      if (!serial_count) return; // shortcut for empty lines
+      if (!serial_count) return; // empty lines just exit
 
       char *command = command_queue[cmd_queue_index_w];
       command[serial_count] = 0; // terminate string
 
+      // this item in the queue is not from sd
       #ifdef SDSUPPORT
         fromsd[cmd_queue_index_w] = false;
       #endif
@@ -3854,15 +3862,16 @@ inline void gcode_M115() {
   SERIAL_PROTOCOLPGM(MSG_M115_REPORT);
 }
 
-/**
+#ifdef ULTIPANEL
+
+  /**
    * M117: Set LCD Status Message
    */
-inline void gcode_M117() {
+  inline void gcode_M117() {
-  char* codepos = strchr_pointer + 5;
+    lcd_setstatus(strchr_pointer + 5);
-  char* starpos = strchr(codepos, '*');
+  }
-  if (starpos) *starpos = '\0';
+
-  lcd_setstatus(codepos);
+#endif
-}
 
 /**
  * M119: Output endstop states to serial output
@@ -5412,9 +5421,13 @@ void process_commands() {
       case 115: // M115: Report capabilities
         gcode_M115();
         break;
+
+      #ifdef ULTIPANEL
         case 117: // M117: Set LCD message text
           gcode_M117();
           break;
+      #endif
+
       case 114: // M114: Report current position
         gcode_M114();
         break;