Ckeditor module's own .make chokes Aegir

I just installed 1.0-rc2 fresh with PHP5.2, but my existing .make files were giving a me errors on creating a Platform including;

Found makefile: ckeditor.make
No core project specified.
...
An error occurred at function : drush_drush_make_make ...
Could not download platform using drush make. No platform present ...
An error occurred at function : drush_provision_drupal_pre_provision_verify ...
An error occurred at function : drush_hosting_task

I'm still getting to grips with Drush Make, and I knew the way Aegir/Provision required things didn't like just projects[] = "drupal", but might this be too strict? Or is this a Drush Make issue?

fyi, ckeditor.make is;

; $Id$

core = 6.x
api = 2

libraries[ckeditor][download][type] = "svn"
libraries[ckeditor][download][url] = "http://svn.ckeditor.com/CKEditor/releases/stable/"
libraries[ckeditor][directory_name] = "ckeditor"