From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Michael Heerdegen Newsgroups: gmane.emacs.help Subject: Re: How to tame compiler? Date: Sun, 02 May 2021 07:58:51 +0200 Message-ID: <87mttdwuas.fsf@web.de> References: <875z03th9b.fsf@web.de> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="9544"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) To: Help GNU Emacs Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Sun May 02 07:59:30 2021 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1ld58c-0002QW-Fk for geh-help-gnu-emacs@m.gmane-mx.org; Sun, 02 May 2021 07:59:30 +0200 Original-Received: from localhost ([::1]:52654 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ld58b-0005IN-Gy for geh-help-gnu-emacs@m.gmane-mx.org; Sun, 02 May 2021 01:59:29 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:43982) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ld584-0005FD-UA for help-gnu-emacs@gnu.org; Sun, 02 May 2021 01:58:56 -0400 Original-Received: from mout.web.de ([217.72.192.78]:54279) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ld583-0006nW-2r for help-gnu-emacs@gnu.org; Sun, 02 May 2021 01:58:56 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=web.de; s=dbaedf251592; t=1619935131; bh=hzhTUvhu2+VuRQe/slUvzX3ABw2G/Kwe9RzpIawK5fI=; h=X-UI-Sender-Class:From:To:Subject:References:Date:In-Reply-To; b=RiqUKQKQ/MhQkMZpa23xIbq2+WFPBalPIOqCeL8m8CCTwnSqWoMsX2MGvxMNZIkeM WgrAHhSvAyE0VdKMPAGq6WV78duzYUfVBnuHlWswafmtgfmWo+s/Ius2VrS/rwCfI2 fvFmvBxXHYs5ccVA0Wzxi+nzjJX4yHhDXQSDnElM= X-UI-Sender-Class: c548c8c5-30a9-4db5-a2e7-cb6cb037b8f9 Original-Received: from drachen.dragon ([94.218.212.89]) by smtp.web.de (mrweb103 [213.165.67.124]) with ESMTPSA (Nemesis) id 0LcgVn-1lBP5g2r3f-00k7xA; Sun, 02 May 2021 07:58:51 +0200 In-Reply-To: (Jean Louis's message of "Sat, 1 May 2021 09:03:56 +0300") X-Provags-ID: V03:K1:jqoBhXJGDo3/MosgRH85ip4YQwWyybYX+C74/98r+sdSnY6grJC 0HPS5VRaXFAPfAvtKMzXjlb5A+hIzsIbhCjeXpjnAYchZw1lLGl1q9gfZYFC/qnB6M8PHhb 9xDy95w9AXYuMMbH3Yy0nIftSSmPkGeii1XX7Sc8BNwnl9hvmzTvCEPMiWuoEqH2GKid7YA xI0WkY8GWt7/iyOUCNqvw== X-UI-Out-Filterresults: notjunk:1;V03:K0:ZUYlICD1l3U=:ZXqYcwd54MDStolQ1kjneC SX4sAV3/jB0a9Hm33xNeCrb1Riwmn6GcLALwuDXYix/B0hA5bufQwLUL4CciGMqzV93kmbeys 9G0Wd7nqPiWvve41ck7B6d47PQCh0zEGeYyaAvporNsgLgm8V471i4hkbgsTtDbnLMsXt6n1f pBuG7I07oiCOrmaPkFTzV1qafsHW946OdfpiItychGBuoDR/5ueMeuvdxcrgh9lyKsd4ZfhUa SD/BC1KZoBCcF/6iMpQtWLcBVueRS/rM5/bD1+QkXWjPwsQnAQMyh8AbmFm5LBWB54vfkbzlo YCLaE+aEo6hIVF98RH/7WWvD1O+o3KI9gsXsnJAaRDH7QKkwHcL7KiQToT7flYCGdOY5vLR6i 4QSsl3148xvPP0Oni945ltXl4z3dbsd7qPLBAu9K4cKgpn4LGNLqwXSNE8cEAAzA9QPgbesaH LnOzb7JlQjZuXauSJV0tC3k0QNb/OKJveLJSCxE4f2gwPR7YnV6hRfqOJOGTJeNLnE5DWuOgc 0YwFKXjsPSMSWkoRy0Lq9j47VAZ5Sao1yGH2ySTOc30aU7g5ba6laGdL6rEhKXsPqwZVIMc8k MjCqRSNurWq85F24m9iRZ6sQR+SH9Pi2QCiXPbx5SJsQ8Krew8qGocpyK8ZGhSnGj5ny0lYoN tmIJEkLBWTEfWhs9sg5gqlmJ63XfRbATGwrJuB2AQSuVe59phZ9n4cA0/W2RAsRzWzs/LtMZc iGG84NtVF0KC4E2/gkzUsIFh6Pj4Ie5pJnhiCKm+h13gfO1c2p3EuVOn5G6w7Z9nQUNPlpO1 Received-SPF: pass client-ip=217.72.192.78; envelope-from=michael_heerdegen@web.de; helo=mout.web.de X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.io gmane.emacs.help:129304 Archived-At: Jean Louis writes: > How do I go to create dynamical bindings? Help me. Newest Emacs versions have `dlet' to create dynamical bindings. Here is the definition: #+begin_src emacs-lisp (defmacro dlet (binders &rest body) "Like `let*' but using dynamic scoping." (declare (indent 1) (debug let)) `(let (_) ,@(mapcar (lambda (binder) `(defvar ,(if (consp binder) (car binder) binder))) binders) (let* ,binders ,@body))) #+end_src Use that macro to create dynamical bindings where you really need, and rely on lexical binding else. Apart from that, I recommend to take Stefan's suggestions into consideration, he knows what he is talking about. Regards, Michael.