net: disable multicast test on Alpha GNU/Linux

Alpha GNU/Linux does not have /proc/net/igmp[6].

R=golang-dev, rsc, bradfitz
CC=golang-dev
https://golang.org/cl/5663047

diff --git a/src/pkg/net/multicast_test.go b/src/pkg/net/multicast_test.go
index bf0fe4d8d0a20e28334836a3a7fae487bc8d7169..f62580de66e9e8e7259209e5d1df40caecdfcee9 100644 (file)
--- a/src/pkg/net/multicast_test.go
+++ b/src/pkg/net/multicast_test.go
@@ -33,7 +33,7 @@ func TestListenMulticastUDP(t *testing.T) {
        case "netbsd", "openbsd", "plan9", "windows":
                return
        case "linux":
-               if runtime.GOARCH == "arm" {
+               if runtime.GOARCH == "arm" || runtime.GOARCH == "alpha" {
                        return
                }
        }