Remains as defined in Common Lisp, but see *handle-existing-defpackage* for an extension.
is as defined in the ANSI standard, with the inclusion of the
keyword. However, the standard explicitly declines to define what
does if a package named
already exists and is in a state that differs from that described by the
, with a true argument, causes the package
to inherit from the following packages (as well as any explictly specified by the
LispWorks User Guide and Reference Manual - 21 Dec 2011