--- drush_make.generate.inc.orig	2011-03-14 03:57:30.000000000 +0100
+++ drush_make.generate.inc	2011-05-20 12:42:14.000000000 +0200
@@ -12,7 +12,7 @@
   foreach(array("include", "exclude") as $option) {
     $version_options[$option] = drush_get_option("$option-versions");
     if ($version_options[$option] !== TRUE) {
-      $version_options[$option] = array_filter(split(",", $version_options[$option]));
+      $version_options[$option] = array_filter(explode(",", $version_options[$option]));
     }
   }