Raspberry Pi Pico RP2040 fail to compile

Created by: cotestatnt

Describe the bug
Raspberry Pi Pico RP2040 fail to compile due to error in pgmspace.hpp

Troubleshooter report
Here is the report generated by the ArduinoJson Troubleshooter:

ArduinoJson Troubleshooter's report

1. The issue happens at compile time
2. The error is not in the list

Environment
Here is the environment that I used:

• Raspberry Pi Pico RP2040
• Arduino Mbed OS RP2040 and Raspberry Pi Pico/RP2040
• Arduino IDE 1.8.16

Reproduction
Tested with StringExample.ino and with others example

Compiler output

...src/ArduinoJson/Polyfills/pgmspace.hpp: In function 'uint32_t pgm_read_dword(ArduinoJson6190_F1::pgm_p)':
...src/ArduinoJson/Polyfills/pgmspace.hpp:102:3: error: cannot convert 'ArduinoJson6190_F1::pgm_p' to 'const void*'
  102 |   memcpy_P(&result, p, 4);

Forcing the undef of memcpy_P before including ArduinoJson.h I can compile and it works as expected, but if I do the same in one of my library which has ArduinoJson as dependency it doesn't work. I have to edit directly the pgmspace.hpp (I suppose due to the Arduino compiler).

#undef memcpy_P
#include <ArduinoJson.h>
  .....