<html lang="en"> <head> <title>missing bits in implementation - asdf Manual</title> <meta http-equiv="Content-Type" content="text/html"> <meta name="description" content="asdf Manual"> <meta name="generator" content="makeinfo 4.13"> <link title="Top" rel="start" href="index.html#Top"> <link rel="prev" href="TODO-list.html#TODO-list" title="TODO list"> <link rel="next" href="Inspiration.html#Inspiration" title="Inspiration"> <link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> <!-- This manual describes asdf, a system definition facility for Common Lisp programs and libraries. asdf Copyright (C) 2001-2004 Daniel Barlow and contributors This manual Copyright (C) 2001-2004 Daniel Barlow and contributors Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the ``Software''), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. 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This is rarely useful to me; usually, when I want to force recompilation of something more than a single source file, I want to recompile only one system. So it would be more useful to have make-sub-operation refuse to propagate <code>:force t</code> to other systems, and propagate only something like <code>:force :recursively</code>. <p>Ideally what we actually want is some kind of criterion that says to which systems (and which operations) a <code>:force</code> switch will propagate. <p>The problem is perhaps that `force' is a pretty meaningless concept. How obvious is it that <code>load :force t</code> should force <em>compilation</em>? But we don't really have the right dependency setup for the user to compile <code>:force t</code> and expect it to work (files will not be loaded after compilation, so the compile environment for subsequent files will be emptier than it needs to be) <p>What does the user actually want to do when he forces? Usually, for me, update for use with a new version of the lisp compiler. Perhaps for recovery when he suspects that something has gone wrong. Or else when he's changed compilation options or configuration in some way that's not reflected in the dependency graph. <p>Other possible interface: have a 'revert' function akin to 'make clean' <pre class="lisp"> (asdf:revert 'asdf:compile-op 'araneida) </pre> <p>would delete any files produced by 'compile-op 'araneida. Of course, it wouldn't be able to do much about stuff in the image itself. <p>How would this work? <p>traverse <p>There's a difference between a module's dependencies (peers) and its components (children). Perhaps there's a similar difference in operations? For example, <code>(load "use") depends-on (load "macros")</code> is a peer, whereas <code>(load "use") depends-on (compile "use")</code> is more of a `subservient' relationship. </body></html>