chacha20poly1305: fix build constraints
Similarly to https://go-review.googlesource.com/32311,
chacha20poly1305 needs additional build constraints
for non-standard toolchains.
Change-Id: I22816ef333c05450e9ab4debb3ce591518b6b84b
Reviewed-on: https://go-review.googlesource.com/32391
Run-TryBot: Alex Vaghin <ddos@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Adam Langley <agl@golang.org>
diff --git a/chacha20poly1305/chacha20poly1305_amd64.go b/chacha20poly1305/chacha20poly1305_amd64.go
index f0d3485..4755033 100644
--- a/chacha20poly1305/chacha20poly1305_amd64.go
+++ b/chacha20poly1305/chacha20poly1305_amd64.go
@@ -2,7 +2,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
-// +build amd64,go1.7
+// +build go1.7,amd64,!gccgo,!appengine
package chacha20poly1305
diff --git a/chacha20poly1305/chacha20poly1305_amd64.s b/chacha20poly1305/chacha20poly1305_amd64.s
index ac95844..f69cc91 100644
--- a/chacha20poly1305/chacha20poly1305_amd64.s
+++ b/chacha20poly1305/chacha20poly1305_amd64.s
@@ -4,7 +4,7 @@
// This file was originally from https://golang.org/cl/24717 by Vlad Krasnov of CloudFlare.
-// +build go1.7
+// +build go1.7,amd64,!gccgo,!appengine
#include "textflag.h"
// General register allocation
diff --git a/chacha20poly1305/chacha20poly1305_noasm.go b/chacha20poly1305/chacha20poly1305_noasm.go
index 1d4dcd3..4c2eb70 100644
--- a/chacha20poly1305/chacha20poly1305_noasm.go
+++ b/chacha20poly1305/chacha20poly1305_noasm.go
@@ -2,7 +2,7 @@
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
-// +build !amd64 !go1.7
+// +build !amd64 !go1.7 gccgo appengine
package chacha20poly1305
