121 lines
5.5 KiB
HTML
121 lines
5.5 KiB
HTML
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<!-- This manual describes ASDF, a system definition facility
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for Common Lisp programs and libraries.
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You can find the latest version of this manual at
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https://common-lisp.net/project/asdf/asdf.html.
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ASDF Copyright (C) 2001-2019 Daniel Barlow and contributors.
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This manual Copyright (C) 2001-2019 Daniel Barlow and contributors.
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This manual revised (C) 2009-2019 Robert P. Goldman and Francois-Rene Rideau.
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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"Software"), to deal in the Software without restriction, including
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<title>Source Registry Configuration (ASDF Manual)</title>
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<meta name="description" content="Source Registry Configuration (ASDF Manual)">
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<link href="index.html" rel="start" title="Top">
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<link href="Concept-Index.html" rel="index" title="Concept Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="What-has-changed-between-ASDF-1-ASDF-2-and-ASDF-3_003f.html" rel="up" title="What has changed between ASDF 1 ASDF 2 and ASDF 3?">
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<link href="Usual-operations-are-made-easier-to-the-user.html" rel="next" title="Usual operations are made easier to the user">
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<div class="subsection" id="Source-Registry-Configuration">
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<div class="header">
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<p>
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Next: <a href="Usual-operations-are-made-easier-to-the-user.html" accesskey="n" rel="next">Usual operations are made easier to the user</a>, Previous: <a href="Output-translations.html" accesskey="p" rel="prev">Output translations</a>, Up: <a href="What-has-changed-between-ASDF-1-ASDF-2-and-ASDF-3_003f.html" accesskey="u" rel="up">“What has changed between ASDF 1, ASDF 2, and ASDF 3?”</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html" title="Index" rel="index">Index</a>]</p>
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</div>
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<hr>
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<span id="Source-Registry-Configuration-1"></span><h4 class="subsection">13.3.5 Source Registry Configuration</h4>
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<p>Configuring ASDF used to require special magic
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to be applied just at the right moment,
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between the moment ASDF is loaded and the moment it is used,
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in a way that is specific to the user,
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the implementation he is using and the application he is building.
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</p>
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<p>This made for awkward configuration files and startup scripts
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that could not be shared between users, managed by administrators
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or packaged by distributions.
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</p>
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<p>ASDF 2 provides a well-documented way to configure ASDF,
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with sensible defaults, adequate configuration languages,
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and a coherent set of configuration files and hooks.
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</p>
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<p>We believe it’s a vast improvement because it decouples
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application distribution from library distribution.
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The application writer can avoid thinking where the libraries are,
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and the library distributor (dpkg, clbuild, advanced user, etc.)
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can configure them once and for every application.
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Yet settings can be easily overridden where needed,
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so whoever needs control has exactly as much as required.
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</p>
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<p>At the same time, ASDF 2 remains compatible
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with the old magic you may have in your build scripts
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(using <code>*central-registry*</code> and
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<code>*system-definition-search-functions*</code>)
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to tailor the ASDF configuration to your build automation needs,
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and also allows for new magic, simpler and more powerful magic.
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</p>
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<p>See <a href="Controlling-where-ASDF-searches-for-systems.html">Controlling where ASDF searches for systems</a>.
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</p>
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</div>
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</body>
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</html>
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