From 44487cc7f1493836b7c8bcffb34eadea19d45751 Mon Sep 17 00:00:00 2001
From: Sean Chittenden <sean@chittenden.org>
Date: Sun, 10 Jul 2016 13:55:06 -0700
Subject: [PATCH] Build the Cgroup fingerprinter on only Linux.

Change the logic from `!linux` to an empty build tag so that *if*
another platform picks up Cgroups support they can add themselves to the
necessary build tags for this fingerprinter and be on their way.
Because this technology isn't inherently Linux-specific and isn't
mutually exclusive of other resource isolation containers, resist the
urge to rename the Cgroup fingerprinter to something generic like the
ResourceContainerFingerprinter.
---
 client/fingerprint/cgroup.go         | 2 ++
 client/fingerprint/cgroup_default.go | 2 +-
 client/fingerprint/cgroup_test.go    | 2 ++
 3 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/client/fingerprint/cgroup.go b/client/fingerprint/cgroup.go
index c0ec7c674..1ec8d8793 100644
--- a/client/fingerprint/cgroup.go
+++ b/client/fingerprint/cgroup.go
@@ -1,3 +1,5 @@
+// +build linux
+
 package fingerprint
 
 import (
diff --git a/client/fingerprint/cgroup_default.go b/client/fingerprint/cgroup_default.go
index 43c55fd85..51e3bf58c 100644
--- a/client/fingerprint/cgroup_default.go
+++ b/client/fingerprint/cgroup_default.go
@@ -1,4 +1,4 @@
-// +build !linux
+// +build
 
 package fingerprint
 
diff --git a/client/fingerprint/cgroup_test.go b/client/fingerprint/cgroup_test.go
index be5d251e0..f12379405 100644
--- a/client/fingerprint/cgroup_test.go
+++ b/client/fingerprint/cgroup_test.go
@@ -1,3 +1,5 @@
+// +build linux
+
 package fingerprint
 
 import (