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

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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/[email protected]/unix/syscall_darwin.1_13.go:25:3:
//go:linkname must refer to declared function or variable
../../gopath/pkg/mod/golang.org/x/[email protected]/unix/zsyscall_darwin_amd64.1_13.go:27:3:
//go:linkname must refer to declared function or variable
../../gopath/pkg/mod/golang.org/x/[email protected]/unix/zsyscall_darwin_amd64.1_13.go:40:3: 
//go:linkname must refer to declared function or variable
../../gopath/pkg/mod/golang.org/x/[email protected]/unix/zsyscall_darwin_amd64.go:28:3: 
//go:linkname must refer to declared function or variable
../../gopath/pkg/mod/golang.org/x/[email protected]/unix/zsyscall_darwin_amd64.go:43:3: 
//go:linkname must refer to declared function or variable
../../gopath/pkg/mod/golang.org/x/[email protected]/unix/zsyscall_darwin_amd64.go:59:3: 
//go:linkname must refer to declared function or variable
../../gopath/pkg/mod/golang.org/x/[email protected]/unix/zsyscall_darwin_amd64.go:75:3: 
//go:linkname must refer to declared function or variable
../../gopath/pkg/mod/golang.org/x/[email protected]/unix/zsyscall_darwin_amd64.go:90:3: 
//go:linkname must refer to declared function or variable
../../gopath/pkg/mod/golang.org/x/[email protected]/unix/zsyscall_darwin_amd64.go:105:3: 
//go:linkname must refer to declared function or variable
../../gopath/pkg/mod/golang.org/x/[email protected]/unix/zsyscall_darwin_amd64.go:121:3: 
//go:linkname must refer to declared function or variable
../../gopath/pkg/mod/golang.org/x/[email protected]/unix/zsyscall_darwin_amd64.go:121:3: 
too many errors

Compilation finished with exit code 2

正确答案

这是由 golang.org/x/sys 的旧版本引起的（在 this issue 中提到）。修复方法是更新：

go get -u golang.org/x/sys

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