[Web] Fix building for web on Windows

[AThousandShips]

On Windows the command for emscripten are provided as .bat files, which causes the compiler version check to fail without shell=True

Shell version of the command works on Windows only, hence the check

If run on Windows without this change you get:

Couldn't parse CXX environment variable to infer compiler version.

And the version is set to just (-1, -1, -1), breaking any adjustments and fixes for the compiler

• Fixes: Can't build web export template with dlink_enabled #90983

[Jagholin]

huh would you look at that
does it also fix the dlink_enabled stuff?

[AThousandShips]

It should, please try it out, it fixes the version check that's required

Edit: Tested and the error reported in #90983 doesn't happen with this, can't confirm that it works fully though as I don't have any project set up for it

[Jagholin]

I can confirm that this patch lets the web template compile on my system.
Unfortunately, after that the freshly built template doesn't work with gdextension modules for me :(
But it's likely a separate issue

[akien-mga]

Thanks!

[AThousandShips]

Thank you!