(define-compilation-unit ie
   (source-filename "$Y2/import-export/")
   (require global)
   (unit ie-utils
     (source-filename "ie-utils"))
   (unit import-export
     (source-filename "import-export"))
   (unit init-modules
     (source-filename "init-modules"))
   (unit top-definitions
     (source-filename "top-definitions"))
   (unit locate-entity
     (source-filename "locate-entity"))
   (unit ie-errors
     (source-filename "ie-errors")))