+ <sect2>
+ <title>Load &md5; module</title>
+ <para>
+ If you plan to use the clsql-postgresql-socket interface, you must load the md5 module.
+ Unzip or untar the cl-md5 distribution, which creates a directory for the cl-md5 files.
+ Add that directory to Defsystem's <varname>asdf:*central-registry*</varname>.
+ You can do that by pushing the pathname of the directory onto this variable.
+ The following example code assumes the cl-md5 files reside in the
+ <filename>/usr/share/lisp/cl-md5/</filename> directory.
+ <programlisting>
+(push #P"/usr/share/lisp/cl-md5/" asdf:*central-registry*)
+(asdf:oos 'asdf:load-op :md5)
+ </programlisting>
+ </para>
+ </sect2>