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Nix as a WebAssembly build tool (determinate.systems)

submitted 4 months ago by starman to c/nix

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[–] [email protected] 4 points 4 months ago

nixpkgs already has infrastructure to compile to wasi the same way you compile to other platforms like arm, darwin (macOS), musl, etc.

nix-build -A pkgsCross.wasi32.$pkg

i haven't found any $pkg there that actually builds though. coreutils depends on posix stuff, busybox tries to include a non-existent netdb.h file. even hello barfs inside i think some autotools-generated wrapper around fcntl.

i don't understand enough about wasm to know if it really is reasonable to think of it as a "system" the same was x86_64-linux or aarch64-multiplatform is a "system", but if so i'd love the equivalent of this blog post showing how to use (or fix) the wasi32 system!