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+  <h1 class="chapter">Writing Makefiles</h1>  <p>The information that tells <code>make</code> how to recompile a system comes from reading a data base called the <em>makefile</em>. </p> <table class="menu" border="0" cellspacing="0"> <tr>
+<td align="left" valign="top">• <a href="makefile-contents" accesskey="1">Makefile Contents</a>
+</td>
+<td> </td>
+<td align="left" valign="top">What makefiles contain. </td>
+</tr> <tr>
+<td align="left" valign="top">• <a href="makefile-names" accesskey="2">Makefile Names</a>
+</td>
+<td> </td>
+<td align="left" valign="top">How to name your makefile. </td>
+</tr> <tr>
+<td align="left" valign="top">• <a href="include" accesskey="3">Include</a>
+</td>
+<td> </td>
+<td align="left" valign="top">How one makefile can use another makefile. </td>
+</tr> <tr>
+<td align="left" valign="top">• <a href="makefiles-variable" accesskey="4">MAKEFILES Variable</a>
+</td>
+<td> </td>
+<td align="left" valign="top">The environment can specify extra makefiles. </td>
+</tr> <tr>
+<td align="left" valign="top">• <a href="remaking-makefiles" accesskey="5">Remaking Makefiles</a>
+</td>
+<td> </td>
+<td align="left" valign="top">How makefiles get remade. </td>
+</tr> <tr>
+<td align="left" valign="top">• <a href="overriding-makefiles" accesskey="6">Overriding Makefiles</a>
+</td>
+<td> </td>
+<td align="left" valign="top">How to override part of one makefile with another makefile. </td>
+</tr> <tr>
+<td align="left" valign="top">• <a href="reading-makefiles" accesskey="7">Reading Makefiles</a>
+</td>
+<td> </td>
+<td align="left" valign="top">How makefiles are read in. </td>
+</tr> <tr>
+<td align="left" valign="top">• <a href="parsing-makefiles" accesskey="8">Parsing Makefiles</a>
+</td>
+<td> </td>
+<td align="left" valign="top">How makefiles are parsed. </td>
+</tr> <tr>
+<td align="left" valign="top">• <a href="secondary-expansion" accesskey="9">Secondary Expansion</a>
+</td>
+<td> </td>
+<td align="left" valign="top">How and when secondary expansion is performed. </td>
+</tr> </table><div class="_attribution">
+  <p class="_attribution-p">
+    Copyright © 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 Free Software Foundation, Inc. <br>Licensed under the GNU Free Documentation License.<br>
+    <a href="https://www.gnu.org/software/make/manual/html_node/Makefiles.html" class="_attribution-link">https://www.gnu.org/software/make/manual/html_node/Makefiles.html</a>
+  </p>
+</div>