Merge pull request #513 from vcaputo/macbuilds

rkt: don't build gc.go, containers.go, and uuid.go on non-linux

rkt/containers.go

@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//+build linux
+
 package main
 
 import (

rkt/gc.go

@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//+build linux
+
 package main
 
 import (

rkt/uuid.go

@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//+build linux
+
 package main
 
 import (