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<a name="Configuration-in-the-gcc-Directory"></a>
<h4 class="subsection">6.3.2 Configuration in the <samp>gcc</samp> Directory</h4>

<p>The <samp>gcc</samp> directory is configured with an Autoconf-generated
script <samp>configure</samp>.  The <samp>configure</samp> script is generated
from <samp>configure.ac</samp> and <samp>aclocal.m4</samp>.  From the files
<samp>configure.ac</samp> and <samp>acconfig.h</samp>, Autoheader generates the
file <samp>config.in</samp>.  The file <samp>cstamp-h.in</samp> is used as a
timestamp.
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<tr><td align="left" valign="top">&bull; <a href="Config-Fragments.html#Config-Fragments" accesskey="1">Config Fragments</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">Scripts used by <samp>configure</samp>.
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<tr><td align="left" valign="top">&bull; <a href="System-Config.html#System-Config" accesskey="2">System Config</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">The <samp>config.build</samp>, <samp>config.host</samp>, and
                         <samp>config.gcc</samp> files.
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<tr><td align="left" valign="top">&bull; <a href="Configuration-Files.html#Configuration-Files" accesskey="3">Configuration Files</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">Files created by running <samp>configure</samp>.
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