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80 lines
3.8 KiB
HTML
80 lines
3.8 KiB
HTML
4 years ago
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<html lang="en">
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<head>
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<title>Config Fragments - GNU Compiler Collection (GCC) Internals</title>
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<meta http-equiv="Content-Type" content="text/html">
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<meta name="description" content="GNU Compiler Collection (GCC) Internals">
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<meta name="generator" content="makeinfo 4.13">
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<link title="Top" rel="start" href="index.html#Top">
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<link rel="up" href="Configuration.html#Configuration" title="Configuration">
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<link rel="next" href="System-Config.html#System-Config" title="System Config">
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<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
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<!--
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Copyright (C) 1988-2015 Free Software Foundation, Inc.
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.3 or
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any later version published by the Free Software Foundation; with the
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Invariant Sections being ``Funding Free Software'', the Front-Cover
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Texts being (a) (see below), and with the Back-Cover Texts being (b)
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(see below). A copy of the license is included in the section entitled
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``GNU Free Documentation License''.
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(a) The FSF's Front-Cover Text is:
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A GNU Manual
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(b) The FSF's Back-Cover Text is:
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You have freedom to copy and modify this GNU Manual, like GNU
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funds for GNU development.-->
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</head>
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<body>
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<div class="node">
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<a name="Config-Fragments"></a>
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<p>
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Next: <a rel="next" accesskey="n" href="System-Config.html#System-Config">System Config</a>,
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Up: <a rel="up" accesskey="u" href="Configuration.html#Configuration">Configuration</a>
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<hr>
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</div>
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<h5 class="subsubsection">6.3.2.1 Scripts Used by <samp><span class="file">configure</span></samp></h5>
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<p><samp><span class="file">configure</span></samp> uses some other scripts to help in its work:
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<ul>
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<li>The standard GNU <samp><span class="file">config.sub</span></samp> and <samp><span class="file">config.guess</span></samp>
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files, kept in the top level directory, are used.
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<li>The file <samp><span class="file">config.gcc</span></samp> is used to handle configuration
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specific to the particular target machine. The file
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<samp><span class="file">config.build</span></samp> is used to handle configuration specific to the
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particular build machine. The file <samp><span class="file">config.host</span></samp> is used to handle
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configuration specific to the particular host machine. (In general,
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these should only be used for features that cannot reasonably be tested in
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Autoconf feature tests.)
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See <a href="System-Config.html#System-Config">The <samp><span class="file">config.build</span></samp>; <samp><span class="file">config.host</span></samp>; and <samp><span class="file">config.gcc</span></samp> Files</a>, for details of the contents of these files.
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<li>Each language subdirectory has a file
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<samp><var>language</var><span class="file">/config-lang.in</span></samp> that is used for
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front-end-specific configuration. See <a href="Front-End-Config.html#Front-End-Config">The Front End <samp><span class="file">config-lang.in</span></samp> File</a>, for details of this file.
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<li>A helper script <samp><span class="file">configure.frag</span></samp> is used as part of
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creating the output of <samp><span class="file">configure</span></samp>.
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</ul>
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</body></html>
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