From e74b1e590bdf387a8a7e0818754273bf5121c54b Mon Sep 17 00:00:00 2001
From: "Earle F. Philhower, III" <earlephilhower@yahoo.com>
Date: Thu, 7 Feb 2019 03:31:39 +0000
Subject: [PATCH] Use "bool" for "boolean" type (#5693)

Match current Arduino definition to avoid issues with comparison
operations.

https://github.com/arduino/Arduino/issues/2147
https://github.com/arduino/Arduino/commit/20ac20f6295b5bd923144ab6844564f13ddc8ca8

Fixes #5440
---
 cores/esp8266/Arduino.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cores/esp8266/Arduino.h b/cores/esp8266/Arduino.h
index d7bb99f63d..34e5fb8fce 100644
--- a/cores/esp8266/Arduino.h
+++ b/cores/esp8266/Arduino.h
@@ -188,7 +188,7 @@ typedef uint16_t word;
 #define bit(b) (1UL << (b))
 #define _BV(b) (1UL << (b))
 
-typedef uint8_t boolean;
+typedef bool boolean;
 typedef uint8_t byte;
 
 void init(void);