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6.1 The defsystem form

This section begins with an example of a system definition, then gives the full grammar of defsystem.

Let's look at a simple system. This is a complete file that should be saved as hello-lisp.asd (in order that ASDF can find it when ordered to operate on the system named "hello-lisp").

     (in-package :asdf-user)
     (defsystem "hello-lisp"
       :description "hello-lisp: a sample Lisp system."
       :version "0.0.1"
       :author "Joe User <>"
       :licence "Public Domain"
       :components ((:file "packages")
                    (:file "macros" :depends-on ("packages"))
                    (:file "hello" :depends-on ("macros"))))

Some notes about this example: