net: add cgo support for Solaris

Change-Id: Ib66bebd418d97f38956970f93e69aa41e7c55523
Reviewed-on: https://go-review.googlesource.com/8262Reviewed-by: Minux Ma <minux@golang.org>
Reviewed-by: Mikio Hara <mikioh.mikioh@gmail.com>

src/net/cgo_solaris.go

+// Copyright 2015 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 cgo,!netgo
+
+package net
+
+/*
+#cgo LDFLAGS: -lsocket -lnsl
+#include <netdb.h>
+*/
+import "C"
+
+const cgoAddrInfoFlags = C.AI_CANONNAME | C.AI_V4MAPPED | C.AI_ALL

src/net/cgo_unix.go

@@ -3,7 +3,7 @@
 // license that can be found in the LICENSE file.
 
 // +build cgo,!netgo
-// +build darwin dragonfly freebsd linux netbsd openbsd
+// +build darwin dragonfly freebsd linux netbsd openbsd solaris
 
 package net