who's defining them, what does their statement mean. What should new code use (given 32 is deprecated).
Ports page is rather poor and missing some of these.
#__MINGW32__ vs __MINGW64__ vs _WIN64
pliant lava
silent moss
Those are defined as builtins in the compiler depending on the target, at least for GCC.
rustic spoke
As for Windows stuff (like _WIN64), see https://learn.microsoft.com/en-us/cpp/preprocessor/predefined-macros?view=msvc-170.
As for Mingw stuff, yeah, that seems to be underdocumented.
@vivid crag Would you be okay with extending the Ports page with these? Or do you have different plans since it's an older page?
vivid crag
Sure, we can always move it if needed