Compile warnings with Pico2W

[JChristensen]

When compiling for Pico2W (e.g. the WiFiClient example sketch), several warnings are issued as below.

When compiling for PicoW, there are no warnings.

I am wondering if there is a way to suppress or work around these for Pico2W.

In file included from ~/.arduino15/packages/rp2040/hardware/rp2040/5.4.2/libraries/WiFi/src/WiFi.h:7,
                 from /tmp/.arduinoIDE-unsaved20251019-57929-1hronnc.dh2n/WiFiClient/WiFiClient.ino:6:
~/.arduino15/packages/rp2040/hardware/rp2040/5.4.2/libraries/WiFi/src/WiFiClient.h:71:20: warning: 'virtual size_t WiFiClient::write(uint8_t)' was hidden [-Woverloaded-virtual=]
   71 |     virtual size_t write(uint8_t) override;
      |                    ^~~~~
In file included from ~/.arduino15/packages/rp2040/hardware/rp2040/5.4.2/libraries/WiFi/src/WiFiClientSecure.h:24,
                 from ~/.arduino15/packages/rp2040/hardware/rp2040/5.4.2/libraries/WiFi/src/WiFi.h:9:
~/.arduino15/packages/rp2040/hardware/rp2040/5.4.2/libraries/WiFi/src/WiFiClientSecureBearSSL.h:57:12: note:   by 'BearSSL::WiFiClientSecureCtx::write'
   57 |     size_t write(Stream& stream); // Note this is not virtual
      |            ^~~~~
~/.arduino15/packages/rp2040/hardware/rp2040/5.4.2/libraries/WiFi/src/WiFiClient.h:71:20: warning: 'virtual size_t WiFiClient::write(uint8_t)' was hidden [-Woverloaded-virtual=]
   71 |     virtual size_t write(uint8_t) override;
      |                    ^~~~~
~/.arduino15/packages/rp2040/hardware/rp2040/5.4.2/libraries/WiFi/src/WiFiClientSecureBearSSL.h:406:12: note:   by 'BearSSL::WiFiClientSecure::write'
  406 |     size_t write(Stream& stream) { /* Note this is not virtual */
      |            ^~~~~

[earlephilhower]

You need to add -Wno-overloaded-virtual to the compile lines. You can do that in platform.local.txt.

compiler.cpp.extra_flags=-Wno-overloaded-virtual
compiler.c.extra_flags-Wno-overloaded-virtual

The warnings seem benign to me. There is no way a write(Stream) could ever be cast into a write(byte)...

[JChristensen]

Thank you very much, Earle. Your work on this core is very much appreciated!