G80: make temp_compensation_retracted global

Author: gudnimg

Firmware/Marlin_main.cpp

@@ -228,6 +228,10 @@ uint8_t newFanSpeed = 0;
   float retract_recover_length_swap = RETRACT_RECOVER_LENGTH_SWAP;
 #endif
 
+#ifndef PINDA_THERMISTOR
+static bool temp_compensation_retracted = false;
+#endif // !PINDA_THERMISTOR
+
   #ifdef PS_DEFAULT_OFF
     bool powersupply = false;
   #else
@@ -385,7 +389,7 @@ static void gcode_G28(bool home_x_axis, bool home_y_axis, bool home_z_axis);
 static void gcode_M105();
 
 #ifndef PINDA_THERMISTOR
-static bool temp_compensation_start();
+static void temp_compensation_start();
 static void temp_compensation_apply();
 #endif
 
@@ -2838,10 +2842,9 @@ static void gcode_G80()
     bool magnet_elimination = (eeprom_read_byte((uint8_t*)EEPROM_MBL_MAGNET_ELIMINATION) > 0);
 
 #ifndef PINDA_THERMISTOR
-    static bool temp_compensation_retracted = false;
     if (run == false && eeprom_read_byte((uint8_t *)EEPROM_TEMP_CAL_ACTIVE) && calibration_status_pinda() == true && target_temperature_bed >= 50)
     {
-        temp_compensation_retracted = temp_compensation_start();
+        temp_compensation_start();
         run = true;
         repeatcommand_front(); // repeat G80 with all its parameters
         enquecommand_front_P(G28W);
@@ -10242,14 +10245,13 @@ void bed_analysis(float x_dimension, float y_dimension, int x_points_num, int y_
 #endif //HEATBED_ANALYSIS
 
 #ifndef PINDA_THERMISTOR
-static bool temp_compensation_start() {
-	bool retracted = false;
+static void temp_compensation_start() {
 	custom_message_type = CustomMsg::TempCompPreheat;
 	custom_message_state = PINDA_HEAT_T + 1;
 	lcd_update(2);
-	if ((int)degHotend(active_extruder) > extrude_min_temp) {
+	if (!temp_compensation_retracted && (int)degHotend(active_extruder) > extrude_min_temp) {
+		temp_compensation_retracted = true;
 		current_position[E_AXIS] -= default_retraction;
-		retracted = true;
 	}
 	plan_buffer_line_curposXYZE(400);
 
@@ -10268,7 +10270,6 @@ static bool temp_compensation_start() {
 	}	
 	custom_message_type = CustomMsg::Status;
 	custom_message_state = 0;
-	return retracted;
 }
 
 static void temp_compensation_apply() {