a few more compile-time infos about enabled/disabled features

helps to understand what you'll get

wled00/alexa.cpp

@@ -139,4 +139,5 @@ void onAlexaChange(EspalexaDevice* dev)
 #else
  void alexaInit(){}
  void handleAlexa(){}
+ #pragma message "Alexa interface disabled"
 #endif

wled00/dmx_output.cpp

@@ -11,6 +11,7 @@
  */
 
 #ifdef WLED_ENABLE_DMX
+#pragma message "DMX network output enabled"
 
 // WLEDMM: seems that DMX output triggers watchdog resets when compiling for IDF 4.4.x
 #ifdef ARDUINO_ARCH_ESP32

wled00/hue.cpp

@@ -205,4 +205,5 @@ void onHueData(void* arg, AsyncClient* client, void *data, size_t len)
 #else
 void handleHue(){}
 void reconnectHue(){}
+#pragma message "Philips HUE bridge interface disabled"
 #endif

wled00/ir.cpp

@@ -7,6 +7,7 @@
  */
 
 #if defined(WLED_DISABLE_INFRARED)
+#pragma message "IR remote support disabled"
 void handleIR(){}
 #else
 

wled00/json.cpp

@@ -1529,6 +1529,8 @@ void serveJson(AsyncWebServerRequest* request)
 #ifdef WLED_ENABLE_JSONLIVE
 #define MAX_LIVE_LEDS 180
 
+#warning "JSON Live enabled"
+
 bool serveLiveLeds(AsyncWebServerRequest* request, uint32_t wsClient)
 {
   #ifdef WLED_ENABLE_WEBSOCKETS

wled00/lx_parser.cpp

@@ -68,4 +68,6 @@ void parseLxJson(int lxValue, byte segId, bool secondary)
   }
 }
 
+#else
+#pragma message "Loxone support disabled"
 #endif

wled00/mqtt.cpp

@@ -195,4 +195,6 @@ bool initMqtt()
   mqtt->connect();
   return true;
 }
+#else
+#pragma message "MQTT disabled"
 #endif

wled00/net_debug.cpp

@@ -26,4 +26,6 @@ size_t NetworkDebugPrinter::write(const uint8_t *buf, size_t size) {
 
 NetworkDebugPrinter NetDebug;
 
+#else
+#pragma message "Net debug disabled"
 #endif

wled00/wled_serial.cpp

@@ -229,6 +229,8 @@ void handleSerial()
   //#ifdef WLED_DEBUG
     if ((millis() - startTime) > SERIAL_MAXTIME_MILLIS) { USER_PRINTLN(F("handleSerial(): need a break after >100ms of activity.")); }
   //#endif
+  #else
+    #pragma message "Serial protocols (AdaLight, Serial JSON, Serial LED driver) disabled"
   #endif
 
   // If Continuous Serial Streaming is enabled, send new LED data as bytes

wled00/ws.cpp

@@ -313,4 +313,5 @@ void handleWs()
 #else
 void handleWs() {}
 void sendDataWs(AsyncWebSocketClient * client) {}
+#pragma message "WebSockets disabled - no live preview."
 #endif