Darwin Build issue: go:linkname must refer to declared function or variable [solved]

[ink-splatters]

Hi, the latest version didn't build with the following error

user@host got % go build ./...
# golang.org/x/sys/unix
../../go/pkg/mod/golang.org/x/sys@v0.0.0-20190412213103-97732733099d/unix/zsyscall_darwin_arm64.go:28:3: //go:linkname must refer to declared function or variable

Original(?)/related issue refers potential solution:

golang/go#51706 (comment)