Added #ifdef BARICUDA around the BariCUDA changes

Marlin/Configuration.h

 // SF send wrong arc g-codes when using Arc Point as fillet procedure
 //#define SF_ARC_FIX
 
+// Support for the BariCUDA Paste Extruder.
+//#define BARICUDA
+
 #include "Configuration_adv.h"
 #include "thermistortables.h"
 

Marlin/Marlin.h

 extern float min_pos[3];
 extern float max_pos[3];
 extern int fanSpeed;
+#ifdef BARICUDA
 extern int ValvePressure;
 extern int EtoPPressure;
+#endif
 
 #ifdef FWRETRACT
 extern bool autoretract_enabled;

Marlin/Marlin_main.cpp

 #endif
 uint8_t active_extruder = 0;
 int fanSpeed=0;
+#ifdef BARICUDA
 int ValvePressure=0;
 int EtoPPressure=0;
+#endif
 
 #ifdef FWRETRACT
   bool autoretract_enabled=true;
         fanSpeed = 0;
         break;
     #endif //FAN_PIN
-
+    #ifdef BARICUDA
 	// PWM for HEATER_1_PIN
-    #if HEATER_1_PIN > -1
-      case 126: //M126 valve open
-        if (code_seen('S')){
-           ValvePressure=constrain(code_value(),0,255);
-        }
-        else {
-          ValvePressure=255;			
-        }
-        break;
-      case 127: //M127 valve closed
-        ValvePressure = 0;
-        break;
-    #endif //HEATER_1_PIN
-
-	// PWM for HEATER_2_PIN
-    #if HEATER_2_PIN > -1
-      case 128: //M128 valve open
-        if (code_seen('S')){
-           EtoPPressure=constrain(code_value(),0,255);
-        }
-        else {
-          EtoPPressure=255;			
-        }
-        break;
-      case 129: //M129 valve closed
-        EtoPPressure = 0;
-        break;
-    #endif //HEATER_2_PIN
+      #if HEATER_1_PIN > -1
+        case 126: //M126 valve open
+          if (code_seen('S')){
+             ValvePressure=constrain(code_value(),0,255);
+          }
+          else {
+            ValvePressure=255;			
+          }
+          break;
+        case 127: //M127 valve closed
+          ValvePressure = 0;
+          break;
+      #endif //HEATER_1_PIN
 
+  	// PWM for HEATER_2_PIN
+      #if HEATER_2_PIN > -1
+        case 128: //M128 valve open
+          if (code_seen('S')){
+             EtoPPressure=constrain(code_value(),0,255);
+          }
+          else {
+            EtoPPressure=255;			
+          }
+          break;
+        case 129: //M129 valve closed
+          EtoPPressure = 0;
+          break;
+      #endif //HEATER_2_PIN
+    #endif
 
     #if (PS_ON_PIN > -1)
       case 80: // M80 - ATX Power On

Marlin/pins.h

 #define HEATER_1_PIN 7
 #define TEMP_1_PIN 1
 
+#ifdef BARICUDA
 #define HEATER_2_PIN 6
+#else
+#define HEATER_2_PIN -1
+#endif
 #define TEMP_2_PIN -1
 
 #define E0_STEP_PIN         34

Marlin/planner.cpp

   unsigned char z_active = 0;
   unsigned char e_active = 0;
   unsigned char tail_fan_speed = fanSpeed;
+  #ifdef BARICUDA
   unsigned char valve_pressure = 0;
   unsigned char e_to_p_pressure = 0;
   unsigned char tail_valve_pressure = 0;
   unsigned char tail_e_to_p_pressure = 0;
+  #endif
   block_t *block;
 
   if(block_buffer_tail != block_buffer_head)
   {
     uint8_t block_index = block_buffer_tail;
     tail_fan_speed = block_buffer[block_index].fan_speed;
+    #ifdef BARICUDA
     tail_valve_pressure = block_buffer[block_index].valve_pressure;
     tail_e_to_p_pressure = block_buffer[block_index].e_to_p_pressure;
+    #endif
     while(block_index != block_buffer_head)
     {
       block = &block_buffer[block_index];
   getHighESpeed();
 #endif
 
-#if HEATER_1_PIN > -1
+#ifdef BARICUDA
+  #if HEATER_1_PIN > -1
     if (ValvePressure != 0){
       analogWrite(HEATER_1_PIN,ValvePressure); // If buffer is empty use current valve pressure
     }
     if (ValvePressure != 0 && tail_valve_pressure !=0) { 
       analogWrite(HEATER_1_PIN,tail_valve_pressure);
     }
-#endif
+  #endif
 
-#if HEATER_2_PIN > -1
+  #if HEATER_2_PIN > -1
     if (EtoPPressure != 0){
       analogWrite(HEATER_2_PIN,EtoPPressure); // If buffer is empty use current EtoP pressure
     }
     if (EtoPPressure != 0 && tail_e_to_p_pressure !=0) { 
       analogWrite(HEATER_2_PIN,tail_e_to_p_pressure);
     }
+  #endif
 #endif
 }
 
   }
 
   block->fan_speed = fanSpeed;
+  #ifdef BARICUDA
   block->valve_pressure = ValvePressure;
   block->e_to_p_pressure = EtoPPressure;
+  #endif
 
   // Compute direction bits for this block 
   block->direction_bits = 0;

Marlin/planner.h

   unsigned long final_rate;                          // The minimal rate at exit
   unsigned long acceleration_st;                     // acceleration steps/sec^2
   unsigned long fan_speed;
+  #ifdef BARICUDA
   unsigned long valve_pressure;
   unsigned long e_to_p_pressure;
+  #endif
   volatile char busy;
 } block_t;