Stop flooding the console with GNU make

Change-Id: I6be171e0fbf8d6c3899a3a269e38c4cdb9db9fe8
Reviewed-on: http://review.couchbase.org/37169
Reviewed-by: Chris Hillery <ceej@couchbase.com>
Tested-by: Trond Norbye <trond.norbye@gmail.com>