xhyve: Depends on macos (#2402)
xhyve: Depends on macos (#2402)

It's a port of bhyve (a FreeBSD virtualiztion solution) for macOS
on top of Hypervisor.framework.

Signed-off-by: Bob W. Hogg <c772a964fd55352a3510e5d535dd9ccc9ac30168@linux.com>
Linuxbrew/homebrew-core,Linuxbrew/homebrew-core,LinuxbrewTestBot/homebrew-core,maxim-belkin/homebrew-core,rwhogg/homebrew-core,maxim-belkin/homebrew-core,LinuxbrewTestBot/homebrew-core,rwhogg/homebrew-core