Prevent arm64 file to be compiled anywhere else. Fixed creack#32.

creack · creack · commit 5cf931ef8f76 · 2015-05-11T13:47:10.000-04:00
diff --git a/ztypes_arm64.go b/ztypes_arm64.go
@@ -1,6 +1,8 @@
 // Created by cgo -godefs - DO NOT EDIT
 // cgo -godefs types.go
 
+// +build arm64
+
 package pty
 
 type (
