emscripten alternatives for C++ to WebAssembly [Was: emscripten in pkgsrc]

[Mayuresh <mayuresh%acm.org@localhost>]

emscripten build and installation [1] looks challenging to organize in a
build system like pkgsrc or I'd imagine any other.

This [2] article says:

<quote>
Emscripten is fine if what you’re doing itself is a proof-of-concept and
you want to see a desktop application somehow running in a browser with
zero or barely any code change. But if you’re seriously targeting the web
as a platform, I suggest to look into getting rid of Emscripten to a
streamlined, smaller and faster build process and runtime experience.

And it’s easy!
</quote>

Looks like this should be doable without any new packages in pkgsrc.

I am looking forward to learn WebAssembly - particularly a pathway from
C++. If anyone has tried this on NetBSD (or otherwise) please share your
experiences.

-- 
Mayuresh

[1] https://emscripten.org/docs/getting_started/downloads.html
[2] https://schellcode.github.io/webassembly-without-emscripten