Mac 上的 Go 1.18 构建错误：“unix/syscall_darwin.1_13.go:25:3: //go:linkname 必须引用声明的函数或变量”

Question

我在 Mac 12+ 上升级到 Go 1.18。

“go build”失败并出现如下错误：

# golang.org/x/sys/unix
../../gopath/pkg/mod/golang.org/x/sys@v0.0.0-20200116001909-b77594299b42/unix/syscall_darwin.1_13.go:25:3:
//go:linkname must refer to declared function or variable
../../gopath/pkg/mod/golang.org/x/sys@v0.0.0-20200116001909-b77594299b42/unix/zsyscall_darwin_amd64.1_13.go:27:3:
//go:linkname must refer to declared function or variable
../../gopath/pkg/mod/golang.org/x/sys@v0.0.0-20200116001909-b77594299b42/unix/zsyscall_darwin_amd64.1_13.go:40:3: 
//go:linkname must refer to declared function or variable
../../gopath/pkg/mod/golang.org/x/sys@v0.0.0-20200116001909-b77594299b42/unix/zsyscall_darwin_amd64.go:28:3: 
//go:linkname must refer to declared function or variable
../../gopath/pkg/mod/golang.org/x/sys@v0.0.0-20200116001909-b77594299b42/unix/zsyscall_darwin_amd64.go:43:3: 
//go:linkname must refer to declared function or variable
../../gopath/pkg/mod/golang.org/x/sys@v0.0.0-20200116001909-b77594299b42/unix/zsyscall_darwin_amd64.go:59:3: 
//go:linkname must refer to declared function or variable
../../gopath/pkg/mod/golang.org/x/sys@v0.0.0-20200116001909-b77594299b42/unix/zsyscall_darwin_amd64.go:75:3: 
//go:linkname must refer to declared function or variable
../../gopath/pkg/mod/golang.org/x/sys@v0.0.0-20200116001909-b77594299b42/unix/zsyscall_darwin_amd64.go:90:3: 
//go:linkname must refer to declared function or variable
../../gopath/pkg/mod/golang.org/x/sys@v0.0.0-20200116001909-b77594299b42/unix/zsyscall_darwin_amd64.go:105:3: 
//go:linkname must refer to declared function or variable
../../gopath/pkg/mod/golang.org/x/sys@v0.0.0-20200116001909-b77594299b42/unix/zsyscall_darwin_amd64.go:121:3: 
//go:linkname must refer to declared function or variable
../../gopath/pkg/mod/golang.org/x/sys@v0.0.0-20200116001909-b77594299b42/unix/zsyscall_darwin_amd64.go:121:3: 
too many errors

Compilation finished with exit code 2

Answer 1

这是由旧版本引起的golang.org/x/sys（本期提到）。修复方法是更新：

go get -u golang.org/x/sys

Answer 2

正如文档提到的，

1. 最简单的方法：跑步get -u golang.org/x/sys。
2. 手动： git 将存储库克隆到$GOPATH/src/golang.org/x/sys.