[gentoo-user] [extremly, wildly, obscenely OT] Is there a Linux system without GNU userlands?

[b.n.]

Hi,

I ask it here because I really don't know where to ask it.

Is there a Linux system somewhere with a *non-GNU* userland?

I wonder in particular if:
- there are Linux systems using the BSD userlands
- there are Linux systems using completely non-standard userlands... 
let's say, non-Unix tools on top of a Linux kernel.

Only thing I can think about is (maybe) embedded systems or things using 
busybox, but in the latter case just imitating gnu or bsd userlands.

Not that I have a real purpose for such a bizarre beast, I'm just curious.

m.