[clisp-list] Why doesn't Defpackage work?

[DMac <dv...@ya...>]

In Slime I attempt:

; SLIME: The Superior Lisp Interaction Mode for Emacs
CL-USER> (load "gtk.lisp")
;; Loading file gtk.lisp ...

Where gtk.lisp Is the file from the CVS repository.

I get this:

DEFPACKAGE GTK: unknown option :MODERN
   [Condition of type SYSTEM::SIMPLE-SOURCE-PROGRAM-ERROR]

Restarts:
  0: [ABORT] Abort handling SLIME request.

Backtrace:
  0: frame binding variables (~ = dynamically):
  | ~ SYSTEM::*FASOUTPUT-STREAM* <--> NIL
  1: EVAL frame for form (DEFPACKAGE "GTK" (:USE "CL" "FFI" "EXT") (:MODERN T) 
(:SHADOWING-IMPORT-FROM "EXPORTING" #:DEF-C-STRUCT #:DEF-CALL-OUT #:DEF-C-TYPE 
#:DEFUN))
  2: EVAL frame for form (LOAD "gtk.lisp")
  3: EVAL frame for form (SWANK:LISTENER-EVAL "(load \"gtk.lisp\")
")

A look at:
http://clisp.podval.org/impnotes/pack-intro.html

tells me that  11.1.2. Macro DEFPACKAGE contains this option.

What am I missing.