I tried to compile my old sketch for the new Uno R4 Wifi and got this error:
Adafruit_ST77xx.cpp:29:10: fatal error: wiring_private.h: No such file or directory
#include "wiring_private.h"
^~~~~~~~~~~~~~~~~~
compilation terminated.
// includes
#include <SPI.h>
#include <Arduino.h>
#include <Adafruit_GFX.h>
#include <Adafruit_ST7789.h> // Hardware-specific library for ST7789 (TFT)
It seems that the Arduino.h has no wiring_private.h and samd.h or do I miss just an additional library?
For what it is worth I verified that it does not build, and did a simple fix to not include this file when building for either of the UNO-R4 boards, and was able to build and run it on a Wifi board with an Adafruit ST7789 320x240 display