Help wanted with compile error with wxWidgets3.1

[Hamish McIntyre-Bhatty]

Hi there,

Re-sending as it seemed to get lost the first time.

I'm trying once again to get newer versions of wxWidgets and wxPython to 
work under Cygwin, but I've noticed I'm running into a new problem when 
simply rebuilding wxWidgets 3.1.5 that I last built around the end of 
March (the prefix option to configure needed to be set), and I don't 
understand how it ever compiled with the error I'm getting.

In amongst other errors, I get "error: wxSoundPLaybackStatus does not 
name a type" and various similar errors. You can get the repo with the 
full cygport setup here: 
https://gitlab.com/hamishmb/cygwin-wxwidgets3.1/-/tree/3.1.5?ref_type=heads

Can anyone give me any hints? I first tried building wxWidgets 3.1.7 but 
that failed with a different error that I also don't know how to solve. 
I'm not sure how I'm meant to know which header file things are meant to 
be in when I get "was not declared in this scope" errors - any hints 
with those or do I just need to be intimately familiar with GNU source 
code for that?

Please note I'll be on holiday soon so I may not reply quickly.

Best,
Hamish