[slime-devel] Re: Compilation and loading procedure

[Mikhail Shevchuk]

Zach, thank you very much for such awesome, detailed explanation. Now,
I got the point.

01 May 2007 13:50:42 -0400, Zach Beane <xach at xach.com>:
> "Mikhail Shevchuk" <mikhail.shevchuk at gmail.com> writes:
>
> > I have a simple program, that connects to IRC using cl-irc package and
> > I wish I could compile it using SLIME. If I hit C-c C-k I get the
> > following error:
> >
> > -+  Errors (1)
> >  `-- READER-ERROR at 610 (line 24, column 40) on #<SB-SYS:FD-STREAM
> > for "file /home/mico/Sources/lisp/utrbot/ircbot.lisp" {B05E531}>:
> >      package "CL-IRC" not found
> >
> > There is a first usage of cl-irc there:
> >
> > (defvar *irc-connection* (cl-irc:connect :nickname "sbclbot"
> >                                        :server "irc.tomsk.ru"
> >                                        :port 6667))
> >
>
> This doesn't have much to do with slime.
>
> You should arrange to have the right packages loaded at the right
> time. An ASDF system file is an easy way to do that. Specifically, I
> would create a file called ircbot.asd that looked like this:
>
>    (asdf:defsystem #:ircbot
>      :depends-on (#:cl-irc)
>      :components ((:file "ircbot")))
>
> Once you have created ircbot.asd, you can use (require 'ircbot) from
> the REPL, or M-x slime-load-system, or ,load-system from the REPL. It
> will ensure that the cl-irc system is loaded before trying to compile
> your ircbot.lisp file, which depends on the cl-irc package existing at
> compile time.
>
> > At the top of that file (ircbot.lisp) I call:
> > (require 'asdf)
> > (asdf:oos 'asdf:load-op 'cl-irc)
>
> Remove these lines from your source file.
>
> > When I run this program using the same sbcl (1.0.5) it works fine - it
> > compiles with no errors or warnings and do what it has to. I guess the
> > cl-irc package doesn't load properly on C-c C-k or I am missing
> > something. After I evaluate the (asdf:oos ... command in the REPL
> > manually and compile the file using C-c C-k it loads and works fine.
>
> After it's loaded once via the ASDF steps, recompiling with C-c C-k
> will also work, since all the necessary packages are now available.
>
> I often start projects as a single file that I can compile and load
> from a freshly started Lisp via C-c C-k. But as soon as the project
> grows to depend on other systems, or is best organized into multiple
> files, I create an ASDF system file and use that to initialize things
> correctly.
>
> Zach
>
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