route: add //go:build line to empty.s
Change-Id: Ife7553d7c9a91e498f87175c147b18c529c89d01
Reviewed-on: https://go-review.googlesource.com/c/net/+/318309
Trust: Tobias Klauser <tobias.klauser@gmail.com>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
diff --git a/route/empty.s b/route/empty.s
index bff0231..90ab4ca 100644
--- a/route/empty.s
+++ b/route/empty.s
@@ -2,6 +2,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
+//go:build darwin && go1.12
// +build darwin,go1.12
// This exists solely so we can linkname in symbols from syscall.
