code review 5847068: misc/cgo/stdio: make it work on Windows

misc/cgo/stdio/stdio.go

+// skip
+
 // Copyright 2009 The Go Authors.  All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !netbsd
-
 package stdio
 
 /*
 #include <stdio.h>
+
+// on mingw, stderr and stdout are defined as &_iob[FILENO]
+// on netbsd, they are defined as &__sF[FILENO]
+// and cgo doesn't recognize them, so write a function to get them,
+// instead of depending on internals of libc implementation.
+FILE *getStdout(void) { return stdout; }
+FILE *getStderr(void) { return stderr; }
 */
 import "C"
 
-var Stdout = (*File)(C.stdout)
-var Stderr = (*File)(C.stderr)
+var Stdout = (*File)(C.getStdout())
+var Stderr = (*File)(C.getStderr())