From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Arthur Miller Newsgroups: gmane.emacs.devel Subject: Re: Q: What is default architecture for code produced by native compiler? Date: Thu, 26 Aug 2021 17:59:55 +0200 Message-ID: References: <83pmu1vjzh.fsf@gnu.org> <83mtp4u1zx.fsf@gnu.org> <8dd78dc2-e8dd-517f-f202-93b25bb86532@gmx.at> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="3863"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: Eli Zaretskii , akrl@sdf.org, emacs-devel@gnu.org To: martin rudalics Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Thu Aug 26 18:05:48 2021 Return-path: Envelope-to: ged-emacs-devel@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 1mJHsy-0000lv-Cj for ged-emacs-devel@m.gmane-mx.org; Thu, 26 Aug 2021 18:05:48 +0200 Original-Received: from localhost ([::1]:48078 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mJHsw-0004bj-W8 for ged-emacs-devel@m.gmane-mx.org; 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envelope-from=arthur.miller@live.com; helo=EUR01-VE1-obe.outbound.protection.outlook.com X-Spam_score_int: -6 X-Spam_score: -0.7 X-Spam_bar: / X-Spam_report: (-0.7 / 5.0 requ) BAYES_05=-0.5, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, MSGID_FROM_MTA_HEADER=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:273042 Archived-At: martin rudalics writes: >> Btw, -O3 is not recommended, as it frequently produces a slower Emacs. > > Where do we say that? INSTALL has > > Here's an example of a 'configure' invocation, assuming a Bourne-like > shell such as Bash, which uses these variables: > > ./configure \ > CPPFLAGS='-I/foo/myinclude' LDFLAGS='-L/bar/mylib' \ > CFLAGS='-O3' LIBS='-lfoo -lbar' > > (this is all one shell command). This tells 'configure' to instruct the > preprocessor to look in the '/foo/myinclude' directory for header > files (in addition to the standard directories), instruct the linker > to look in '/bar/mylib' for libraries, pass the -O3 optimization > switch to the compiler, and link against libfoo and libbar > libraries in addition to the standard ones. > > martin Yes I pass my compiler flags to configure script that way.