Fix docker-machine-driver-kvm2 build

Makefile

@@ -413,7 +413,7 @@ release-minikube: out/minikube checksum
 	gsutil cp out/minikube-$(GOOS)-$(GOARCH) $(MINIKUBE_UPLOAD_LOCATION)/$(MINIKUBE_VERSION)/minikube-$(GOOS)-$(GOARCH)
 	gsutil cp out/minikube-$(GOOS)-$(GOARCH).sha256 $(MINIKUBE_UPLOAD_LOCATION)/$(MINIKUBE_VERSION)/minikube-$(GOOS)-$(GOARCH).sha256
 
-out/docker-machine-driver-kvm2:
+out/docker-machine-driver-kvm2: pkg/minikube/assets/assets.go pkg/minikube/translate/translations.go
 	go build 																					\
 		-installsuffix "static" 												\
 		-ldflags="$(KVM2_LDFLAGS)" 											\

cmd/drivers/kvm/main-nolinux.go

@@ -0,0 +1,33 @@
+// +build !linux
+
+/*
+Copyright 2016 The Kubernetes Authors All rights reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package main
+
+import (
+	"fmt"
+	"os"
+)
+
+func main() {
+	fmt.Println(
+		"this driver was built on a non-linux machine, so it is " +
+			"unavailable. Please re-build minikube on a linux machine to enable " +
+			"it.",
+	)
+	os.Exit(1)
+}

cmd/drivers/kvm/main.go

@@ -0,0 +1,37 @@
+// +build linux
+
+/*
+Copyright 2016 The Kubernetes Authors All rights reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package main
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/docker/machine/libmachine/drivers/plugin"
+	"k8s.io/minikube/pkg/drivers/kvm"
+)
+
+func main() {
+	if len(os.Args) > 1 && os.Args[1] == "version" {
+		fmt.Println("version:", kvm.GetVersion())
+		fmt.Println("commit:", kvm.GetGitCommitID())
+		return
+	}
+
+	plugin.RegisterDriver(kvm.NewDriver("", ""))
+}