nim-syscall for MacIntosh

[FemtoEmacs]

I think that your ideas about writing software without reliance on large libraries are very interesting. That said, is it possible to adapt nim-syscall for Macintosh? Could you do that?

[def-]

Honestly this repo was done more as a PoC than for actually writing software with. I'm not going to extend it to other platforms. If you manage to make a PR and get it working, I'd merge it though.