Created parameter to build or not from source using mingw

manifests/nova_dependencies.pp

@@ -1,8 +1,28 @@
-class openstack_hyper_v::nova_dependencies inherits openstack_hyper_v::params {
-
-  Class['windows_python'] -> Class['mingw'] -> Windows_python::Dependency<| |>
-
-  class { 'mingw': }
+# === Class: openstack_hyper_v::nova_dependencies
+#
+# This class is responsible of managing all the dependencies that OpenStack
+# Nova needs in order to work properly.
+#
+# === Parameters
+#
+# [*build_from_source*]
+#   Boolean value that determines if the dependencies will be compiled when
+#   necessary or installed through prebuilt packages. The default values is
+#   false. If true, MinGW is used.
+#
+# === Authors
+#
+class openstack_hyper_v::nova_dependencies (
+  $build_from_source = $::openstack_hyper_v::params::build_from_source,
+) inherits openstack_hyper_v::params {
+
+  if $build_from_source {
+    class { 'mingw':
+      before => Class['windows_python'],
+    }
+  }
+
+  Class['windows_python'] -> Windows_python::Dependency<| |>
 
   class { 'windows_python': 
     python_source      => $python_source,

manifests/params.pp

@@ -1,4 +1,7 @@
 class openstack_hyper_v::params {
+  # General
+  $build_from_source                = false
+
   # Python base installation
   $python_source                    = undef
   $python_installdir                = 'C:\Python27'