*automatically-create-missing-directories*

Purpose
Controls whether any directories that are missing in the compiled-file tree should be created when needed.

Package   :common-lisp-user (also imported into and exported from :module-manager)

Module   :module-manager

Value type   A generalized boolean

Initial value   nil

Description
By default, *automatically-create-missing-directories* is set to nil, but it can be set or bound to true to instruct compile-module to create any needed directories in the compiled-file tree rather than generating a continuable error. The compile-module option :create-dirs can also be specified to bind *automatically-create-missing-directories* to true during module compilation.

See also
    compile-module

Example
Automatically create, as needed, any missing directory in the compiled-file tree, rather than generating a continuable error:

  (setf common-lisp-user::*automatically-create-missing-directories* 't)

*automatically-create-missing-directories*