From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Andreas Schwab Newsgroups: gmane.emacs.devel Subject: Re: Post-22.1 development? Date: Thu, 07 Jun 2007 19:05:40 +0200 Message-ID: References: <878xb05ras.fsf@stupidchicken.com> <856463sehn.fsf@lola.goethe.zz> <466481AF.5050507@gnu.org> <873b16crgw.fsf@stupidchicken.com> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable X-Trace: sea.gmane.org 1181235969 24782 80.91.229.12 (7 Jun 2007 17:06:09 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Thu, 7 Jun 2007 17:06:09 +0000 (UTC) Cc: emacs-devel@gnu.org To: Michael Albinus Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Thu Jun 07 19:05:54 2007 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1HwLQn-0001Z5-Q2 for ged-emacs-devel@m.gmane.org; Thu, 07 Jun 2007 19:05:54 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1HwLQn-00087s-6R for ged-emacs-devel@m.gmane.org; Thu, 07 Jun 2007 13:05:53 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1HwLQj-00087b-Hk for emacs-devel@gnu.org; Thu, 07 Jun 2007 13:05:49 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1HwLQh-00087C-PG for emacs-devel@gnu.org; Thu, 07 Jun 2007 13:05:48 -0400 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1HwLQh-000879-HL for emacs-devel@gnu.org; Thu, 07 Jun 2007 13:05:47 -0400 Original-Received: from ns.suse.de ([195.135.220.2] helo=mx1.suse.de) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1HwLQg-0000Un-SW for emacs-devel@gnu.org; Thu, 07 Jun 2007 13:05:47 -0400 Original-Received: from Relay1.suse.de (mail2.suse.de [195.135.221.8]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.suse.de (Postfix) with ESMTP id CC72812367; Thu, 7 Jun 2007 19:05:44 +0200 (CEST) X-Yow: There's enough money here to buy 5000 cans of Noodle-Roni! In-Reply-To: (Michael Albinus's message of "Thu\, 07 Jun 2007 17\:45\:52 +0200") User-Agent: Gnus/5.110006 (No Gnus v0.6) Emacs/22.0.97 (gnu/linux) X-detected-kernel: Linux 2.4-2.6 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:72425 Archived-At: Michael Albinus writes: > bojohan+news@dd.chalmers.se (Johan Bockg=E5rd) writes: > >> The change was unnecessarily drastic. >> >> However, there is no problem with using the `cl' package at >> compile time, with `(eval-when-compile (require 'cl))'. That's >> sufficient for using the macros in the `cl' package, because the >> compiler expands them before generating the byte-code. >> >> -- (info "(elisp)Coding Conventions") > > But this would mean that one cannot use such a package if it is NOT > byte compiled. Why? The require is still evaluated when interpreted. eval-when-compile is a Lisp macro in `byte-run.el'. (eval-when-compile &rest BODY) Like `progn', but evaluates the body at compile time if you're compiling. Thus, the result of the body appears to the compiler as a quoted constant= . In interpreted code, this is entirely equivalent to `progn'. Andreas. --=20 Andreas Schwab, SuSE Labs, schwab@suse.de SuSE Linux Products GmbH, Maxfeldstra=DFe 5, 90409 N=FCrnberg, Germany PGP key fingerprint =3D 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED= 5 "And now for something completely different."