Windows build issue

[Penghe Geng]

Hubert,

The current code seems not building correctly on Windows unless a few trivial changes have been made, including removing libnl dependency and the canifconfig project.

I can provide more details or submit a pull request if desired.

Thanks,
Peng Geng

[Hubert Denkmair]

thanks, I did not try the windows build for some time.
i'm always glad to accept pull requests :)