Support for wasm64 / Memory64 in emscripten-forge

[akhmerov]

Upstream Emscripten now provides Memory64/wasm64 support.

emscripten-forge currently only packages the wasm32 toolchain.

Are there plans to add an emscripten-wasm64 target or recipes to the conda channel? This would allow packaging and testing software that depends on >4 GB memory space and 64-bit addressing. I understand that the feature is rather new, but I would like to know whether this is considered in scope for the project.

[DerThorsten]

It depends a bit. Its it fine to mix packages compiled with wasm64 support and the old 32bit wasm? We try to avoid recompiling everything.

But we are just experimenting with emscripten-4 and anyhow need to recompile everything. I need to inform myself a bit about the implications of wasm64.

Thanks for bringing this up!