From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 10954 invoked by alias); 29 May 2016 17:25:48 -0000 Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Received: (qmail 10944 invoked by uid 89); 29 May 2016 17:25:47 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-2.7 required=5.0 tests=AWL,BAYES_00,RP_MATCHES_RCVD,SPF_HELO_PASS,SPF_PASS autolearn=ham version=3.3.2 spammy= X-HELO: limerock01.mail.cornell.edu Received: from limerock01.mail.cornell.edu (HELO limerock01.mail.cornell.edu) (128.84.13.241) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Sun, 29 May 2016 17:25:37 +0000 X-CornellRouted: This message has been Routed already. Received: from authusersmtp.mail.cornell.edu (granite3.serverfarm.cornell.edu [10.16.197.8]) by limerock01.mail.cornell.edu (8.14.4/8.14.4_cu) with ESMTP id u4THPZU5027947 for ; Sun, 29 May 2016 13:25:35 -0400 Received: from [192.168.1.3] (mta-68-175-148-36.twcny.rr.com [68.175.148.36] (may be forged)) (authenticated bits=0) by authusersmtp.mail.cornell.edu (8.14.4/8.12.10) with ESMTP id u4THPX4P007099 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NOT) for ; Sun, 29 May 2016 13:25:34 -0400 Subject: Re: lint kills _Noreturn To: cygwin@cygwin.com References: <6fef0097-c076-2691-c4f9-2af5a050a17e@cornell.edu> <86fut07qha.fsf@gmail.com> <9c66686a-0af8-dbfe-7804-797df8aad7c6@cornell.edu> From: Ken Brown Message-ID: Date: Sun, 29 May 2016 22:51:00 -0000 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.1.0 MIME-Version: 1.0 In-Reply-To: <9c66686a-0af8-dbfe-7804-797df8aad7c6@cornell.edu> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-PMX-Cornell-Gauge: Gauge=XXXXX X-IsSubscribed: yes X-SW-Source: 2016-05/txt/msg00385.txt.bz2 On 5/29/2016 1:21 PM, Ken Brown wrote: > On 5/29/2016 12:56 PM, Andy Moreton wrote: >> On Sun 29 May 2016, Ken Brown wrote: >> >>> If lint is defined, then /usr/include/sys/cdefs.h defines _Noreturn >>> as a macro >>> that expands to nothing. Is this intentional? >>> >>> Simple test case: >>> >>> $ cat test.h >>> #define lint 1 >>> #include >>> _Noreturn void foo (void); >>> >>> $ gcc -E test.h | grep foo >>> void foo (void); >>> >>> >>> Ken >> >> A traditional lint program may not support the new C11 keywords, but >> will define the 'lint' symbol. See, e.g. >> http://www.unix.com/man-page/FreeBSD/1/lint > > But in the present context (see my second message), we're redefining C11 > keywords even though __STDC_VERSION__ >= 201112L. > >> Surely the real problem here is a program which is not a lint executable >> defining 'lint' ? > > The program is emacs built from a git checkout of the master branch. By > default the configure option --enable-gcc-checking is used, and this I meant --enable-gcc-warnings. > causes lint to be defined in src/config.h. It doesn't seem to be a > problem on platforms other than Cygwin; or at least it hasn't been > reported. -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple