remove emrun from emcc to avoid the game to keep calling stdio.html

[maiconpintoabreu]

Suggesting to remove --emrun as it makes the game to Post requests to stdio.html, if the developer needs it it can be added on the build.zig.

[Not-Nik]

I can't reproduce this and it doesn't really fix an issue. What exactly is causing this request?

[maiconpintoabreu]

Hi @Not-Nik, Sorry I will try to describe how to reproduce the issue.

Steps to reproduce the issue that this suggestion tries to solve.

1 - zig build -Dtarget=wasm32-emscripten -Doptimize=ReleaseSmall --sysroot ${ EMSDK_PATH }/upstream/emscripten

• It will compile the wasm files in zig-out/htmlout

2 - python3 -m http.server or any http server to serve the files as if it was in a webservice like Itch.io
3 - Access the page and It will show on console straight away some errors like: POST http://localhost:8000/stdio.html 501 (Unsupported method ('POST'))

Workaround

The workaround is to add _ = link_step.argv.pop(); just after using linkWithEmscripten so it removes the --emrun from the arguments and if you do another release it will not produce any call to stdio.
PS. Removing --emrun should not effect zig build -Dtarget=wasm32-emscripten --sysroot ../emsdk/upstream/emscripten run

[Not-Nik]

Let's add a parameter to linkWithEmscripten, to control this behaviour. This would need to be updated in the project templates as well.