From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Po Lu via "Bug reports for GNU Emacs, the Swiss army knife of text editors" Newsgroups: gmane.emacs.bugs Subject: bug#63556: 29.0.90; Use of _Generic breaks Emacs build on GCC <4.9 Date: Fri, 19 May 2023 11:18:28 +0800 Message-ID: <87ednd3t6j.fsf@yahoo.com> References: <4b378d55-ef65-7a0f-b03d-e304785cf60d@cs.ucla.edu> <87v8gp51ys.fsf@yahoo.com> <87mt21408l.fsf@yahoo.com> <800a427a-514f-8ef5-326d-6abc06fb036a@cs.ucla.edu> Reply-To: Po Lu Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="17763"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Cc: Spencer Baugh , 63556@debbugs.gnu.org To: Paul Eggert Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Fri May 19 05:19:29 2023 Return-path: Envelope-to: geb-bug-gnu-emacs@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 1pzqeO-0004PW-RO for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 19 May 2023 05:19:28 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pzqe2-0003R9-9u; Thu, 18 May 2023 23:19:06 -0400 Original-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 1pzqdz-0003Qg-4f for bug-gnu-emacs@gnu.org; Thu, 18 May 2023 23:19:03 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1pzqdy-0004mp-7s for bug-gnu-emacs@gnu.org; Thu, 18 May 2023 23:19:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1pzqdx-0000h0-LD for bug-gnu-emacs@gnu.org; Thu, 18 May 2023 23:19:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Po Lu Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 19 May 2023 03:19:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 63556 X-GNU-PR-Package: emacs Original-Received: via spool by 63556-submit@debbugs.gnu.org id=B63556.16844663282643 (code B ref 63556); Fri, 19 May 2023 03:19:01 +0000 Original-Received: (at 63556) by debbugs.gnu.org; 19 May 2023 03:18:48 +0000 Original-Received: from localhost ([127.0.0.1]:54999 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1pzqdk-0000gZ-CT for submit@debbugs.gnu.org; Thu, 18 May 2023 23:18:48 -0400 Original-Received: from sonic314-22.consmr.mail.ne1.yahoo.com ([66.163.189.148]:44666) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1pzqdh-0000gK-V4 for 63556@debbugs.gnu.org; Thu, 18 May 2023 23:18:47 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1684466319; bh=pxv5H+zOF1q8L7bhKrzAjMN6eLPXofvJSuBaSeECO3A=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From:Subject:Reply-To; b=ExNCY1sHiR6hy2Mry89ViW86Xg3NQBb+bfAdgHCRmr0YIUiKqTnugbuCOt+6lwO7ujy6RBIay6QwEvIh1KUV9Frh4qKFeXYxVEe1SRMO9gMOQ8SmvkawEdgqhHbHhHZrmAdVvRq2m4afxNfNpblo03gTGhqAzWtFlSADRh2Ryo6Af7rNGmaE8o13BHeKZql3OiH2QrbJFnWJAbZDFKWJEsZEEk5HfCE4e3ymZta9ikXZWeUHqNVHwhxs5mFV1m3vETzsAf0BLW4y+A8T3ImyZSlox0LVSFFQNurVtN8eLMV9jRZnzggJviOKbr0XpWO2o46VFhI7D8w+NK+M+10Ong== X-SONIC-DKIM-SIGN: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1684466319; bh=wsMCAH4OjxkPiIg9Ng3mTAvz3lxU83dEUCOM00EW5oK=; h=X-Sonic-MF:From:To:Subject:Date:From:Subject; b=tZ7ykZsvJdYcRM5dlKYfp42IGXg1147h839todmDsuceP9usqoc6K01MbiivrhI2EXcDjkYKCoFZ3Bz5pemMZUd3WHotKZVJ4WZz09iCYgKQVJYRMoHnbMNfWQeIHQaA5L9pbkozOmi2f8QD6qZshIaeEvFw/fGyvVrvT5GUPOQUsNXV0siSvs+RSl1buGWslJRn4M1GAdgI5LMxIsrnTCfukX7gSdyuqIPx7MdyBiF4eY6/2YWlMWH23dj0v7ZgKQEVRlN3jvntvpdvaPAtw9SRd3rnPvbvGXEZCspdksXbqfvAHSAQHKR4YViQrCc9L+hBzPlx6K6WKhSaDYhpng== X-YMail-OSG: Q13U_RwVM1n3EVJ3up6iIKKO3hfaIEB48x4pyibzHmNx3Lg_fZtG3LrMlVPq773 yPVlGl8EIllRSGi0z748gq4oxD5.RbPxZeyCGt3sbncMhUCdpXaQ009T3EN9aaEFJYaDHnjJzAr4 QhjbkwuKkLmFFYGFCYnDrrAha4iMf12Lt.oRadtKuUJXse4xPx40YRMgm15grYe.ogg3gTfDMCzh 44RpaMZbeJkUStpz_.WuxDVXJnHCweO1JDlAjhjzK5.5ZRBKpOnmSzYcOrdMQjGbUmiAE7qaBlW9 LvhUVPYotnkX_QyS2g0jybcNehPzmWB.nZB4an3ZFmtvs5bKhOPBpTkZ_sCadITuSoMplWFfYFt. 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Hermes SMTP Server) with ESMTPA ID 260fceee9d7174771e034a4e4da74d34; Fri, 19 May 2023 03:18:34 +0000 (UTC) In-Reply-To: <800a427a-514f-8ef5-326d-6abc06fb036a@cs.ucla.edu> (Paul Eggert's message of "Thu, 18 May 2023 20:05:59 -0700") X-Mailer: WebService/1.1.21471 mail.backend.jedi.jws.acl:role.jedi.acl.token.atz.jws.hermes.yahoo X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.bugs:261969 Archived-At: Paul Eggert writes: > On 5/18/23 17:46, Po Lu wrote: > >> How does intprops.h work on such systems? > > It relies on _Generic. (Those systems use neither GCC nor Clang.) What about in C99 hosts? > Fair enough, although I see more than just one other use: EMACS_INT > (32-bit platforms configured --with-wide-int), color_distance, `color_distance' is the first use I was referring to. And, so far, `--with-wide-int' is optional. > time_from_jiffies (in Linux), system_process_attributes (in Linux). These seem to be system-specific. > Currently there's a 'verify (PTRDIFF_MAX <= ULLONG_MAX);' protecting > the use of elogb in lisp.h. Would it help to add a 'verify (max > (-MOST_NEGATIVE_FIXNUM, MOST_POSITIVE_FIXNUM) <= ULLONG_MAX);' to > protect its use in floatfns.c? Sure. But it would make me feel a lot better if we could get away without using `long long' at all on 32-bit systems.