Project does not build

[thebino]

I tried to build to resurrect this project by running the following commands:

git submodule update --init --recursive
cmake . -B build
cmake --build build

but it failed with a lot of errors :(

wxWidgets-cmake-project/3rdparty/wxWidgets/src/unix/sound_sdl.cpp:67:34: error: unknown class name 'wxSoundBackend'; did you mean 'wxSoundBackendSDL'?
class wxSoundBackendSDL : public wxSoundBackend
                                 ^~~~~~~~~~~~~~
                                 wxSoundBackendSDL


wxWidgets-cmake-project/3rdparty/wxWidgets/src/unix/sound_sdl.cpp:67:7: note: 'wxSoundBackendSDL' declared here
class wxSoundBackendSDL : public wxSoundBackend
      ^
wxWidgets-cmake-project/3rdparty/wxWidgets/src/unix/sound_sdl.cpp:67:34: error: base class has incomplete type
class wxSoundBackendSDL : public wxSoundBackend
                          ~~~~~~~^~~~~~~~~~~~~~