From 49f307506b98f2cb4712694c34a070cdafcfda66 Mon Sep 17 00:00:00 2001
From: constantin <constantin@jaecktec.de>
Date: Mon, 18 Sep 2017 19:27:44 +0200
Subject: [PATCH] Add ESP32 callback signature to be functional like ESP8266

---
 src/PubSubClient.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/PubSubClient.h b/src/PubSubClient.h
index be4bd67..13ab692 100755
--- a/src/PubSubClient.h
+++ b/src/PubSubClient.h
@@ -73,7 +73,7 @@
 #define MQTTQOS1        (1 << 1)
 #define MQTTQOS2        (2 << 1)
 
-#ifdef ESP8266
+#if defined(ESP8266) || defined(ESP32)
 #include <functional>
 #define MQTT_CALLBACK_SIGNATURE std::function<void(char*, uint8_t*, unsigned int)> callback
 #else