Use the proper config version in config.vm.define calls

plugins/kernel_v1/config/vm.rb

@@ -75,6 +75,10 @@ module VagrantPlugins
       end
 
       def define(name, options=nil, &block)
+        # Force the V1 config on these calls
+        options ||= {}
+        options[:config_version] = "1"
+
         @define_calls << [name, options, block]
       end
 

plugins/kernel_v2/config/vm.rb

@@ -115,6 +115,7 @@ module VagrantPlugins
       def define(name, options=nil, &block)
         name = name.to_sym
         options ||= {}
+        options[:config_version] ||= "2"
 
         # Add the name to the array of VM keys. This array is used to
         # preserve the order in which VMs are defined.
@@ -126,7 +127,7 @@ module VagrantPlugins
         end
 
         defined_vms[name].options.merge!(options)
-        defined_vms[name].push_proc(&block) if block
+        defined_vms[name].config_procs << [options[:config_version], block] if block
       end
 
       def finalize!

plugins/kernel_v2/config/vm_subvm.rb

@@ -6,20 +6,17 @@ module VagrantPlugins
     class VagrantConfigSubVM
       include Vagrant::Util::StackedProcRunner
 
+      # Returns an array of the configuration procs in [version, proc]
+      # format.
+      #
+      # @return [Array]
+      attr_reader :config_procs
+
       attr_reader :options
 
       def initialize
-        @options = {}
-      end
-
-      # This returns an array of the procs to configure this VM, with
-      # the proper version pre-pended for the configuration loader.
-      #
-      # @return [Array]
-      def config_procs
-        proc_stack.map do |proc|
-          ["2", proc]
-        end
+        @config_procs = []
+        @options      = {}
       end
     end
   end