From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Po Lu Newsgroups: gmane.emacs.devel Subject: Re: [PROPOSAL] Builder, a build system integration for Emacs Date: Mon, 05 Jun 2023 13:29:21 +0800 Message-ID: <87ilc2lbny.fsf@yahoo.com> References: <95980ffc-86e7-ad54-4a20-539d8c6ea5d0@mailo.com> <83h6s0n95y.fsf@gnu.org> <83edn4myz4.fsf@gnu.org> <83a5xsmuc0.fsf@gnu.org> <831qj4mlg7.fsf@gnu.org> <3a315ddd3aa7d7cda74e@heytings.org> <87jzwspr4t.fsf@yahoo.com> <828A9E8C-125E-42D9-A03E-CC6611E6AC90@yahoo.com> <84fefa6fb3324f972847@heytings.org> <875y8aou86.fsf@yahoo.com> <84fefa6fb336ac04652e@heytings.org> <87sfbdnvxs.fsf@yahoo.com> <66738b9275126f75a710@heytings.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="4297"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Cc: Madhu , emacs-devel@gnu.org To: Gregory Heytings Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Mon Jun 05 07:30:16 2023 Return-path: Envelope-to: ged-emacs-devel@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 1q62nH-0000tA-Tm for ged-emacs-devel@m.gmane-mx.org; Mon, 05 Jun 2023 07:30:16 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1q62mm-0005li-BM; Mon, 05 Jun 2023 01:29:44 -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 1q62mi-0005l0-SJ for emacs-devel@gnu.org; Mon, 05 Jun 2023 01:29:40 -0400 Original-Received: from sonic310-25.consmr.mail.ne1.yahoo.com ([66.163.186.206]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1q62md-0000Ow-6Z for emacs-devel@gnu.org; Mon, 05 Jun 2023 01:29:37 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1685942972; bh=DUfGdJ/tDsaT4u4IzgMhTLI0NDw2zfu5tqgPpfMpI48=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From:Subject:Reply-To; b=ba8vS4s6gE8l0pTs3MS81BpXxnpW/z2ru09iKvrE1IWjd+yVxBEwV8c3Nz8fNZUwc6qonSve6PXrglrDen3eh7ziqR8Qg80JNHd4kf/Ilt68AZMpUgdonGev4o8emgnfwQHvPA9tm4MQMbSw5cE105E42BQFG+hiI2L/NL1MuPLjDOVC8fVKPrvpfAnVqsXAdYJB9gz/1fRLNZasd9XScj2jjFGv9O2NM+bTS7/hHIjN3RFHXL7Vbx3mCfrr1th02QiBAN2fnzk2wpPcvctns7N6ji+RmjJ17C5eQAkbFkxjwJ0735jbLMlQ3zvTg071V2xiXTpOjna0No7j0PA85Q== X-SONIC-DKIM-SIGN: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1685942972; bh=vBkSTFkgEq7YilLaGMCIn79eQJHRmaof4cnnrB0u6s4=; h=X-Sonic-MF:From:To:Subject:Date:From:Subject; b=GnFXIoaH0M7rhmvs5btHZD91U37loeffhVfSHHxVFr8dfVjfsPbPHh52kgRdxr7QBjdb3kTFlt/vUAdu+8jsA6YswsL4hFhKp3ZlCzLXIPdYUL3Ry19CkdFrNxLNlLImxiwAOi85nyiPYaf24VMPRyNfX3VjdLesNnx1xfNsJ+kfHCg0Ym64YAYvYgqqRvQ7oG8ML4/rwzvzqxOOoVC0bTghQb/aeuH+uXFe7gbHxhdGSesOR5I/SlzZ/ENXMKiE1d2vX1JtZ+dRKOGmpm0SAMuoRlR9rLYjhyGS0J+EXUoxWbpsf1oOEUYUl5lV0y44A6kv+eUhLr8n4GcaJT0RQQ== X-YMail-OSG: gbstW7IVM1kouvCcfOm841ffZ6nz0GkpgJCKrtEdyqpzWnHWyA5asMb4wf1TM2D 5aULoRypwdZzQIlyXiIPBHR_.c_KBzbPu8q6mG_9fjyr3Cvjx0WprpveAbYZIv1wyhuyA8pVeefO x5PhSlhQ0ZWymiwkxjJcXcMSHnW_rjvMFzPjJ.PV_DEoSAebHpy7fAtf6r1XLheILqRyD_X2fp0E TQfHRrkpnfpP03sPDRjNNc6gQwL3ovzs3w9Ydwb8d3TNx6jZH_zHO3GsBxQzrx1WDYOQW8G3HqS_ 0kr9gScmOzW3A4h3_9snTeHNnwEWsBlmsrFJv6KoujQNW8.78EdPaGQmmYKi.aIvvXXrD5jbOGFR 3uP0MrP9yVZHtDx.5rZINHN3Cv4AiqMrIqAZlTBjIgK2rTkRJr3nZaEDfzfhGAF_uVy2u_4cRVU6 yXDb5h9yfkg2Y1x_JgqbdasCeYzlJVjpSQmwwCNSFHgtlapYkVl1ccU6X1F5X9LZoRTZQymV1rls 0JG3MfijBkFd_8Po0O2FNeVktDN5a1a._Ftt._VFWocha.4o3UBmyGmsaAwvOO9lfT1kweFE1qrn Ks7bd1fRUlpnpyC19jQB7wCSBW_NUY0nvbGe5Hr1Fnc8aq.fEBbmwvWPBUy.OyzuxBz6wHtecP2E iINR8OiQ3x6hukBx5qtt5XtxT7DLxFj69E3GbBazm3ltLzmIMibpUiJLWmoDd2dNGBUe93f0PYHZ Qa171IHxaXrzVRoSvDmHBc51U_WObsBqWNRe4FjJ35Nub3CHIpsnZL0b5KDxpTIRQ80sMUJ1UGai 72vR2dg3eUssynIMg4R7Y9ujKks497BpAgbUuuMTxY X-Sonic-MF: X-Sonic-ID: c80359dc-128e-43a9-870b-d5169e8644a1 Original-Received: from sonic.gate.mail.ne1.yahoo.com by sonic310.consmr.mail.ne1.yahoo.com with HTTP; Mon, 5 Jun 2023 05:29:32 +0000 Original-Received: by hermes--production-sg3-748897c457-tkwlg (Yahoo Inc. Hermes SMTP Server) with ESMTPA ID c85c39202eb432c63c1f6cd6a2914db4; Mon, 05 Jun 2023 05:29:29 +0000 (UTC) In-Reply-To: <66738b9275126f75a710@heytings.org> (Gregory Heytings's message of "Mon, 05 Jun 2023 01:09:55 +0000") X-Mailer: WebService/1.1.21495 mail.backend.jedi.jws.acl:role.jedi.acl.token.atz.jws.hermes.yahoo Received-SPF: pass client-ip=66.163.186.206; envelope-from=luangruo@yahoo.com; helo=sonic310-25.consmr.mail.ne1.yahoo.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 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-mx.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:306633 Archived-At: Gregory Heytings writes: > Your claim that Rust is not backward compatible being wrong, you now It's not. The Linux kernel, for example, requires a ``nightly'' Rust compiler for its Rust code. To add insult to injury, that code does not compile with GCC. > suggest that it should be forward compatible as well? It isn't, of > course, otherwise the language would be frozen. We are debating how _stable_ the language is, and backwards compatibility is just one aspect. Standard C is remarkably stable; embarassments such as the soon-to-be included ``generic'' string functions aside, what has compiled in the future will likely compile in the fast as well, and vice versa. I think that the same could not be said for any other widely available language. > And why would compiling recent programs with old versions of the > compiler be useful, when all you have to do is to install a more > recent version of the compiler? Because there are systems which are not supported by newer compilers. Each new compiler is also slower than previous ones, and uses more memory.