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Tue, 5 Oct 2021 15:51:49 +0000 From: Ken Brown Subject: Question about 'provides' and emacs packaging To: cygwin-apps Message-ID: Date: Tue, 5 Oct 2021 11:51:47 -0400 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.14.0 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-ClientProxiedBy: MN2PR19CA0045.namprd19.prod.outlook.com (2603:10b6:208:19b::22) To BN7PR04MB4388.namprd04.prod.outlook.com (2603:10b6:406:f8::19) MIME-Version: 1.0 Received: from [IPv6:2603:7081:7e3f:3419:10d5:b5e:5549:4ccc] (2603:7081:7e3f:3419:10d5:b5e:5549:4ccc) by MN2PR19CA0045.namprd19.prod.outlook.com (2603:10b6:208:19b::22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4587.18 via Frontend Transport; Tue, 5 Oct 2021 15:51:48 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 0b371625-6402-45e8-114d-08d988180ab2 X-MS-TrafficTypeDiagnostic: BN6PR04MB0658: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:10000; 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There are currently five emacs packages: emacs-common, emacs, emacs-X11, emacs-w32, and emacs-lucid. The first includes things that are needed by each of the other four, and those four each include an emacs binary. The binary in the emacs package is /usr/bin/emacs-nox.exe. The other packages contain /usr/bin/emacs-X11.exe, and so on. This way of naming the packages doesn't really reflect the contents of the emacs package. It also means that anyone who installs emacs gets emacs-nox.exe, even if they plan to use one of the other three binaries. I would rather rename the current emacs-common package to emacs and the current emacs package to emacs-nox. But then the new emacs would have to have a way of requiring the installation of at least one of emacs-nox, emacs-X11, emacs-w32, or emacs-lucid. Is there any way to do this with our current setup machinery? My idea three years ago was to have the new emacs package require a "feature" called, for instance, emacs-bin, and then have each of emacs-nox, emacs-X11, emacs-w32, emacs-lucid "provide" that feature. This is what Fedora does. Achim didn't think this was feasible without major changes in setup. Is that still the case? If so, can anyone think of another way to accomplish what I want? Thanks. Ken