From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Paul Eggert Newsgroups: gmane.emacs.devel Subject: Re: Building master on Windows fails with undefined reference to `__builtin_assume_aligned' Date: Sat, 25 Jun 2016 23:40:10 +0200 Message-ID: <576EFA3A.6000900@cs.ucla.edu> References: <576E3E2E.1070802@gmx.at> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1466890836 13646 80.91.229.3 (25 Jun 2016 21:40:36 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 25 Jun 2016 21:40:36 +0000 (UTC) To: martin rudalics , emacs-devel Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sat Jun 25 23:40:28 2016 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1bGvJT-0007kJ-IJ for ged-emacs-devel@m.gmane.org; Sat, 25 Jun 2016 23:40:27 +0200 Original-Received: from localhost ([::1]:51575 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bGvJS-0003JO-H1 for ged-emacs-devel@m.gmane.org; Sat, 25 Jun 2016 17:40:26 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:49551) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bGvJL-0003Au-1W for emacs-devel@gnu.org; Sat, 25 Jun 2016 17:40:19 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bGvJG-0001zt-Sy for emacs-devel@gnu.org; Sat, 25 Jun 2016 17:40:17 -0400 Original-Received: from zimbra.cs.ucla.edu ([131.179.128.68]:45607) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bGvJG-0001zo-MV for emacs-devel@gnu.org; Sat, 25 Jun 2016 17:40:14 -0400 Original-Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 22A38160EF1; Sat, 25 Jun 2016 14:40:14 -0700 (PDT) Original-Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id ajWUdH1z-uiW; Sat, 25 Jun 2016 14:40:13 -0700 (PDT) Original-Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 446D71613F6; Sat, 25 Jun 2016 14:40:13 -0700 (PDT) X-Virus-Scanned: amavisd-new at zimbra.cs.ucla.edu Original-Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id W_DDxjfuCh8S; Sat, 25 Jun 2016 14:40:13 -0700 (PDT) Original-Received: from [192.168.1.15] (host243-162-static.0-79-b.business.telecomitalia.it [79.0.162.243]) by zimbra.cs.ucla.edu (Postfix) with ESMTPSA id 80BC6160EF1; Sat, 25 Jun 2016 14:40:12 -0700 (PDT) User-Agent: Mozilla/5.0 (X11; Linux i686; rv:38.0) Gecko/20100101 Thunderbird/38.8.0 In-Reply-To: <576E3E2E.1070802@gmx.at> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 131.179.128.68 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.21 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.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.org gmane.emacs.devel:204763 Archived-At: On 06/25/2016 10:17 AM, martin rudalics wrote: > ../../src/lisp.h:878:3: warning: implicit declaration of function > '__builtin_assume_aligned' [-Wimplicit-function-declaration] What version of GCC are you using? What are the values of the C macros __GNUC__, __GNUC_MINOR__, and __GNUC_PATCHLEVEL__? Currently, src/conf_post.h has this: # define __has_builtin___builtin_assume_aligned GNUC_PREREQ (4, 7, 0) which means the code assumes that GCC 4.7.0 and later support __builtin_assume_aligned (I got this from the GCC NEWS files). Perhaps that "(4, 7, 0)" is too low and needs to be increased a bit?