+(mk:add-registry-location #P"/usr/local/src/lisp/uffi")
+(mk:load-system :uffi)
+ </programlisting>
+ </para>
+ </sect2>
+
+ <sect2>
+ <title>Load &clsql; modules</title>
+ <para>
+ Unzip or untar the &clsql; distribution which creates a directory
+for the &clsql; files. Add that directory to Defsystem's <varname>mk:*central-registry*</varname>.
+You can do that by either pushing the pathname of the directory onto this variable, or
+use the new <function>add-registry-location</function> present in the newest versions of
+&defsystem;. The following example code assumes the &clsql; files reside in the
+<filename>/usr/local/src/lisp/clsql</filename> directory. You need to load, at a minimum,
+the main <symbol>:clsql</symbol> system and at least one interface system.
+ <programlisting>
+(mk:add-registry-location #P"/usr/local/src/lisp/clsql")
+(mk:load-system :clsql) ; main clsql package
+(mk:load-system :clsql-mysql) ; MySQL interface
+(mk:load-system :clsql-postgresql) ; PostgreSQL interface
+(mk:load-system :clsql-postgresql-socket) ; Socket PGSQL interface
+(mk:load-system :clsql-aodbc) ; Allegro ODBC interface