From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS22989 209.51.188.0/24 X-Spam-Status: No, score=-3.9 required=3.0 tests=AWL,BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED, RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_PASS shortcircuit=no autolearn=ham autolearn_force=no version=3.4.6 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 5E2731F47C for ; Thu, 19 Jan 2023 02:09:51 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pIKMu-00065A-L1; Wed, 18 Jan 2023 21:09:32 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pIKMs-00064e-Mn for bug-gnulib@gnu.org; Wed, 18 Jan 2023 21:09:30 -0500 Received: from woodpecker.gentoo.org ([140.211.166.183] helo=smtp.gentoo.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_CHACHA20_POLY1305:256) (Exim 4.90_1) (envelope-from ) id 1pIKMq-0007gG-UV for bug-gnulib@gnu.org; Wed, 18 Jan 2023 21:09:30 -0500 From: Sam James Content-Type: multipart/signed; boundary="Apple-Mail=_13D210CB-C75E-4BFF-8143-0E23507F46CE"; protocol="application/pgp-signature"; micalg=pgp-sha512 Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3731.300.101.1.3\)) Subject: Making _Noreturn a no-op in < Clang 16? Message-Id: Date: Thu, 19 Jan 2023 02:09:12 +0000 Cc: =?utf-8?Q?Arsen_Arsenovi=C4=87?= To: Gnulib bugs X-Mailer: Apple Mail (2.3731.300.101.1.3) Received-SPF: pass client-ip=140.211.166.183; envelope-from=sam@gentoo.org; helo=smtp.gentoo.org X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_PASS=-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: 2.1.29 Precedence: list List-Id: Gnulib discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnulib-bounces+normalperson=yhbt.net@gnu.org Sender: bug-gnulib-bounces+normalperson=yhbt.net@gnu.org --Apple-Mail=_13D210CB-C75E-4BFF-8143-0E23507F46CE Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=us-ascii Hi all, Over on bug-gawk, we ended up finding that Clang was miscompiling certain expressions involving _Noreturn. This is fixed in Clang's git repo but not in any released version. It should be in 16.0. Paul suggested [0] that gnulib ought to #define _Noreturn to blank for known-broken Clang versions, especially given finding such broken patterns isn't easy. This seems like a reasonable path forward. I'm concerned about gnulib versions in various released bits of GNU software (diffutils just got a release, for example) without this workaround in. What do you think? [0] https://lists.gnu.org/archive/html/bug-gawk/2023-01/msg00004.html Best, sam --Apple-Mail=_13D210CB-C75E-4BFF-8143-0E23507F46CE Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP -----BEGIN PGP SIGNATURE----- iNUEARYKAH0WIQQlpruI3Zt2TGtVQcJzhAn1IN+RkAUCY8imSF8UgAAAAAAuAChp c3N1ZXItZnByQG5vdGF0aW9ucy5vcGVucGdwLmZpZnRoaG9yc2VtYW4ubmV0MjVB NkJCODhERDlCNzY0QzZCNTU0MUMyNzM4NDA5RjUyMERGOTE5MAAKCRBzhAn1IN+R kMS8AP9PI4z1t7zm8dC37LXFpnMtpvGPr+Fk8VciiLC7FM0eNwD/exRnRNU52j67 v0WM4zfqBSj37ne18EknwalBEIbVRgQ= =gphL -----END PGP SIGNATURE----- --Apple-Mail=_13D210CB-C75E-4BFF-8143-0E23507F46CE--