From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS22989 209.51.188.0/24 X-Spam-Status: No, score=-4.1 required=3.0 tests=AWL,BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A, RCVD_IN_DNSWL_HI,RCVD_IN_MSPIKE_H4,RCVD_IN_MSPIKE_WL,SPF_HELO_PASS, SPF_PASS shortcircuit=no autolearn=unavailable autolearn_force=no version=3.4.2 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dcvr.yhbt.net (Postfix) with ESMTPS id A217E1F8C6 for ; Tue, 27 Jul 2021 23:39:07 +0000 (UTC) Received: from localhost ([::1]:55008 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1m8WfB-0004t3-Ax for normalperson@yhbt.net; Tue, 27 Jul 2021 19:39:05 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:50106) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1m8Wey-0004sd-1X for bug-gnulib@gnu.org; Tue, 27 Jul 2021 19:38:52 -0400 Received: from zimbra.cs.ucla.edu ([131.179.128.68]:39680) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1m8Wew-0000O1-1R for bug-gnulib@gnu.org; Tue, 27 Jul 2021 19:38:51 -0400 Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 5183716007D; Tue, 27 Jul 2021 16:38:47 -0700 (PDT) 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 LFSqR9DrHNPb; Tue, 27 Jul 2021 16:38:46 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id A2C6B1600AF; Tue, 27 Jul 2021 16:38:46 -0700 (PDT) X-Virus-Scanned: amavisd-new at zimbra.cs.ucla.edu 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 FRbHZ_U07LZ0; Tue, 27 Jul 2021 16:38:46 -0700 (PDT) Received: from [192.168.1.9] (cpe-172-91-119-151.socal.res.rr.com [172.91.119.151]) by zimbra.cs.ucla.edu (Postfix) with ESMTPSA id 7504116007D; Tue, 27 Jul 2021 16:38:46 -0700 (PDT) Subject: Re: Undefined use of weak symbols in gnulib To: Florian Weimer , Joseph Myers References: <87o8e0p92r.fsf@oldenburg.str.redhat.com> <1680226.UWtE2gOZdF@omega> <87a6piluow.fsf@oldenburg.str.redhat.com> <1882380.6EOZElgKgl@omega> <877dhbbjc8.fsf@oldenburg.str.redhat.com> From: Paul Eggert Organization: UCLA Computer Science Department Message-ID: <84fa7f6b-cb0a-8154-7153-b183423cbac0@cs.ucla.edu> Date: Tue, 27 Jul 2021 16:38:46 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: <877dhbbjc8.fsf@oldenburg.str.redhat.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=131.179.128.68; envelope-from=eggert@cs.ucla.edu; helo=zimbra.cs.ucla.edu X-Spam_score_int: -45 X-Spam_score: -4.6 X-Spam_bar: ---- X-Spam_report: (-4.6 / 5.0 requ) BAYES_00=-1.9, NICE_REPLY_A=-0.438, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: bug-gnulib@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Gnulib discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Carlos O'Donell , bug-gnulib@gnu.org, libc-alpha@sourceware.org, Bruno Haible Errors-To: bug-gnulib-bounces+normalperson=yhbt.net@gnu.org Sender: "bug-gnulib" On 7/27/21 1:19 PM, Florian Weimer wrote: >> So if there's any change regarding LIBPTHREAD_SO, I think the natural one >> would be to define it to LIBC_SO (I hope the dlopen/dlsym case works >> regardless of whether that change is made or not). > That is in an interesting idea. I like it. Me too. > It doesn't help with Bruno's use case, detecting the integrated > libpthread with the preprocessor. It might be good enough for that use case, if the detection of LIBPTHREAD_SO==LIBC_SO can be done at 'configure' time instead of at preprocessor time. (Bruno would be a better person to opine on this.)