div><p>If PACKAGE-DESIGNATOR is a package, it is returned. Otherwise PACKAGE-DESIGNATOR
must be a string designator, in which case the package it names is located and returned.</p>
<p>As an SBCL extension, the current package may affect the way a package name is
resolved: if the current package has local nicknames specified, package names
matching those are resolved to the packages associated with them instead.</p>
<p>Example:</p>
<p>(defpackage :a)
(defpackage :example (:use :cl) (:local-nicknames (:x :a))