No and it's not useful. It's literally just editing `src/link/Wasm.zig` and changing the `--export-all` line to `--export=addInc` (to use the zig wasm example's naming) and copy/pasting the line if I wanted to export more stuff. The compile invocation is:

    zig build-lib add.zig -O ReleaseSmall -target wasm32-freestanding -static

You can debug the linker invocation with `--verbose-link` on the end of that.

The issue tracking the problem is: https://github.com/ziglang/zig/issues/7133