From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Kevin Rodgers Newsgroups: gmane.emacs.devel Subject: Re: defvars at compile time Date: Thu, 16 Mar 2006 11:31:29 -0700 Message-ID: References: <20403.1141690692@olgas.newt.com> <3861.1142268982@olgas.newt.com> <22907.1142318606@olgas.newt.com> <3669.1142364565@olgas.newt.com> <7035.1142372131@olgas.newt.com> <28215.1142437339@olgas.newt.com> NNTP-Posting-Host: main.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Trace: sea.gmane.org 1142534009 32435 80.91.229.2 (16 Mar 2006 18:33:29 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Thu, 16 Mar 2006 18:33:29 +0000 (UTC) Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Thu Mar 16 19:33:27 2006 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by ciao.gmane.org with esmtp (Exim 4.43) id 1FJxHd-00057J-Bs for ged-emacs-devel@m.gmane.org; Thu, 16 Mar 2006 19:33:14 +0100 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1FJxHc-0004Jw-Sd for ged-emacs-devel@m.gmane.org; Thu, 16 Mar 2006 13:33:12 -0500 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1FJxHO-0004Jr-Rr for emacs-devel@gnu.org; Thu, 16 Mar 2006 13:32:58 -0500 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1FJxHK-0004Jc-Ma for emacs-devel@gnu.org; Thu, 16 Mar 2006 13:32:58 -0500 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1FJxHK-0004JZ-Jf for emacs-devel@gnu.org; Thu, 16 Mar 2006 13:32:54 -0500 Original-Received: from [80.91.229.2] (helo=ciao.gmane.org) by monty-python.gnu.org with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA:32) (Exim 4.52) id 1FJxM2-00042f-5u for emacs-devel@gnu.org; Thu, 16 Mar 2006 13:37:46 -0500 Original-Received: from list by ciao.gmane.org with local (Exim 4.43) id 1FJxH3-0004zQ-Dz for emacs-devel@gnu.org; Thu, 16 Mar 2006 19:32:37 +0100 Original-Received: from 207.167.42.60 ([207.167.42.60]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 16 Mar 2006 19:32:37 +0100 Original-Received: from ihs_4664 by 207.167.42.60 with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 16 Mar 2006 19:32:37 +0100 X-Injected-Via-Gmane: http://gmane.org/ Original-To: emacs-devel@gnu.org Original-Lines: 44 Original-X-Complaints-To: usenet@sea.gmane.org X-Gmane-NNTP-Posting-Host: 207.167.42.60 User-Agent: Mozilla Thunderbird 0.9 (X11/20041105) X-Accept-Language: en-us, en In-Reply-To: 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:51709 Archived-At: Katsumi Yamaoka wrote: >>>>>>In <7035.1142372131@olgas.newt.com> Bill Wohler wrote: > > >>Reiner Steib wrote: > > >>>(let* ((load-path (image-load-path-for-library "mh-e" "mh-logo.xpm")) >>> (image-load-path (cons (car load-path) >>> (when (boundp 'image-load-path) >>> image-load-path)))) >>> (mh-tool-bar-folder-buttons-init)) > > >>How would you fix this, then? > > >> While compiling mh-folder-mode in file >> /usr/local/src/mh-e/src/emacs/lisp/mh-e/mh-folder.el: >> ** reference to free variable image-load-path > > > I usually do this: > > (when (boundp 'image-load-path) > (symbol-value 'image-load-path)) Would using this also quiet the compiler? (defmacro symbol-value-safe (symbol) "Return SYMBOL's value, but avoid signaling an error if it is void. If SYMBOL is void, return nil." (let ((temp-symbol (make-symbol "temp-symbol"))) `(let ((,temp-symbol ,symbol)) (if (boundp ,temp-symbol) (symbol-value ,temp-symbol))))) (macroexpand '(symbol-value-safe 'image-load-path)) => (let ((temp-symbol (quote image-load-path))) (if (boundp temp-symbol) (symbol-value temp-symbol))) -- Kevin Rodgers