[NetCDF_jll] Potential dependency on AWSCRT (windows)

[Alexander-Barth]

The NetCDF package can optionally depend on the AWS S3 SDK (which is available in Yggdraslil but not for Windows). Would it be possible that NetCDF depend on AWSCRT without loosing the Windows build?

Surprisingly the build script include some windows specific patches:

https://github.com/JuliaPackaging/Yggdrasil/blob/master/A/AWSCRT/bundled/patches/aws-c-common.patch
https://github.com/JuliaPackaging/Yggdrasil/blob/master/A/AWSCRT/build_tarballs.jl#L63

and Windows seems to be supported by upstream, but the build script excludes it as a supported platform:
https://github.com/JuliaPackaging/Yggdrasil/blob/master/A/AWSCRT/build_tarballs.jl#L220

I am wondering if there any particular reason for that? Maybe @Octogonapus knows?

[Octogonapus]

It is because the Windows build is not fully working. The patches fix some of the problems, just not all of them. It also wasn't a priority for my use of AWSCRT, so I disabled it in the interest of time.

You are right that Windows support should be possible. I currently don't have time to work on it, though.

[Alexander-Barth]

Thanks a lot @Octogonapus for your feedback.