From 3a110aa698dd17e0d80704db47c8e43c986b0f86 Mon Sep 17 00:00:00 2001
From: Bryce Schober <bryceschober@users.noreply.github.com>
Date: Fri, 6 Apr 2018 02:23:46 -0700
Subject: [PATCH] Allow other ESP debug port class types (#4611)

... by casting to void pointers before comparison to avoid compile error
---
 cores/esp8266/HardwareSerial.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cores/esp8266/HardwareSerial.cpp b/cores/esp8266/HardwareSerial.cpp
index 4eb2366fa..416aa73c4 100644
--- a/cores/esp8266/HardwareSerial.cpp
+++ b/cores/esp8266/HardwareSerial.cpp
@@ -40,7 +40,7 @@ void HardwareSerial::begin(unsigned long baud, SerialConfig config, SerialMode m
     end();
     _uart = uart_init(_uart_nr, baud, (int) config, (int) mode, tx_pin, _rx_size);
 #if defined(DEBUG_ESP_PORT) && !defined(NDEBUG)
-    if (this == &DEBUG_ESP_PORT)
+    if (static_cast<void*>(this) == static_cast<void*>(&DEBUG_ESP_PORT))
     {
         setDebugOutput(true);
         println();