Building on Plan 9 stopped working, which breaks github.com/u-root/cpu

[rminnich]

Bug Description

This worked a few years ago.

go-billy % GOOS=plan9 GOARCH=amd64 go build ./...

which is why we used go-billy, since our code ports to anything go runs on.

As of today:

# github.com/go-git/go-billy/v6/helper/chroot
helper/chroot/chroot.go:126:56: undefined: syscall.ELOOP

unix dependencies have unconditionally crept in.

Plan 9 has a chroot equivalent, it's just a matter of namespace manipulation.

If you would be willing to accept a fix for this, I know how to implement it.

go-git Version

does not matter.

Steps to Reproduce

See above.

Additional Information

No response

[rminnich]

I'd also suggest you add plan 9 build to the CI, so this won't repeat.

[pjbgf]

@rminnich agreed, happy for this to be added to the project. 👍