defvars at compile time (was: New GNOME icons)

[Reiner Steib <reinersteib+gmane@imap.cc>]

On Wed, Mar 15 2006, Bill Wohler wrote:

> Reiner Steib <reinersteib+gmane@imap.cc> wrote:
>> On Tue, Mar 14 2006, Bill Wohler wrote:
[...]
>> >   (eval-when-compile (defvar image-load-path))
>> 
>> Yes.  IIRC `eval-when-compile' isn't necessary:
>
> Thanks.
>
> Not necessary, but better no? Since it's only needed during compilation,
> doesn't putting it in an eval-when-compile produce one less form to
> evaluate during run-time? I also find it self-documenting.

,----[ http://article.gmane.org/gmane.emacs.devel/42998 ]
| From: Stefan Monnier
| Subject: Re: defvars at compile time
| 
| [...]
| 
| The form (defvar foo) was specifically designed as a byte-compiler
| directive, so please make use of it.
`----

,----[ http://article.gmane.org/gmane.emacs.devel/43027 ]
| From: Richard M. Stallman
| Subject: Re: defvars at compile time
|
| The only effect of a defvar with no initial value
| is to silence the compiler.  So it is superfluous
| to put it inside eval-when-compile.
`----

We should shift this to emacs-devel if more discussion is necessary
(Mail-Followup-To: emacs-devel).

Bye, Reiner.
-- 
       ,,,
      (o o)
---ooO-(_)-Ooo---  |  PGP key available  |  http://rsteib.home.pages.de/


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