Seems like this coule be and issue with XOD rather than emscripten perhaps? Can you try running file /ws/arduino_data/EM_CACHE/wasm-obj/libc++abi-noexcept.a to see what type of file that actually is?

Called XOD, the development team has designed the visual language for microcontroller system development and made it compatible with Arduino, Raspberry Pi and other boards with a bunch of widespread ...

XOD library for composite video. Contribute to WaylandM/xod-arduino-tvout development by creating an account on GitHub.