Zig WebAssembly

In addition to this, you need to explicitly state which exported functions/variables you want to include in the Wasm output, either by passing -rdynamic to include everything, or by repeatedly passing the --entry=<symbol> for each symbol you want to include.

So the complete invocation is

zig build-exe ./math.zig -target wasm32-freestanding -fno-entry -rdynamic
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