From 061e522f4cebc6abd52c06fb696050d20efbf870 Mon Sep 17 00:00:00 2001
From: Martino Facchin <m.facchin@arduino.cc>
Date: Wed, 16 Dec 2020 15:54:13 +0100
Subject: [PATCH] Transform F() macro into a very complicated template

---
 cores/arduino/Arduino.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/cores/arduino/Arduino.h b/cores/arduino/Arduino.h
index c40dcb20..8cd4a574 100644
--- a/cores/arduino/Arduino.h
+++ b/cores/arduino/Arduino.h
@@ -27,6 +27,17 @@
 #include <avr/interrupt.h>
 
 #ifdef __cplusplus
+
+#undef F
+
+// C++11 declaration
+template <typename T1>
+auto F(T1&& A)
+  -> const arduino::__FlashStringHelper*
+{
+return (const arduino::__FlashStringHelper*)A;
+}
+
 extern "C"{
 #endif