title: Cannot get Uname by golang
body: <p>I'm using golang 1.4.2 on Mac</p>
  
  <p>I want to use <a href="https://golang.org/pkg/syscall/#Uname" rel="nofollow">Uname</a> to get some information, followings are my codes:</p>
  
  <pre><code>package main
  
  import (
    "syscall"
  )
  
  func main() {
    utsname := syscall.Utsname{}
    syscall.Uname(&amp;utsname)
  }
  </code></pre>
  
  <p>But I got these errors:</p>
  
  <pre><code># command-line-arguments
  ./main.go:8: undefined: syscall.Utsname
  ./main.go:9: undefined: syscall.Uname
  </code></pre>
  
  <p>Any went wrong?</p>