</ul><h3>See also</h3><ul class="seealso"><li><a href="programs/configure.html">Configure the source tree</a></li><li><a href="invoking.html">Starting the Apache HTTP Server</a></li><li><a href="stopping.html">Stopping and Restarting</a></li></ul></div>
<p>The following requirements exist for building Apache HTTPd:</p>
<dl>
<dt>Disk Space</dt>
<dd>Make sure you have at least 50 MB of temporary free disk
space available. After installation Apache occupies
approximately 10 MB of disk space. The actual disk space
requirements will vary considerably based on your chosen
configuration options and any third-party modules.</dd>
<dt>ANSI-C Compiler and Build System</dt>
<dd>Make sure you have an ANSI-C compiler installed. The <a href="http://www.gnu.org/software/gcc/gcc.html">GNU C
compiler (GCC)</a> from the <a href="http://www.gnu.org/">Free Software Foundation (FSF)</a>
is recommended. If you don't have GCC
then at least make sure your vendor's compiler is ANSI
compliant. In addition, your <code>PATH</code> must contain
basic build tools such as <code>make</code>.</dd>
<dt>Accurate time keeping</dt>
<dd>Elements of the HTTP protocol are expressed as the time of
day. So, it's time to investigate setting some time
synchronization facility on your system. Usually the
<code>ntpdate</code> or <code>xntpd</code> programs are used for
this purpose which are based on the Network Time Protocol (NTP).
See the <a href="http://www.ntp.org">NTP
homepage</a> for more details about NTP software and public
time servers.</dd>
<dt><a href="http://www.perl.org/">Perl 5</a>
[OPTIONAL]</dt>
<dd>For some of the support scripts like <code class="program"><a href="./programs/apxs.html">apxs</a></code> or <code class="program"><a href="./programs/dbmmanage.html">dbmmanage</a></code> (which are
written in Perl) the Perl 5 interpreter is required (versions
5.003 or newer are sufficient). If you have multiple Perl
interpreters (for example, a systemwide install of Perl 4, and
your own install of Perl 5), you are advised to use the
<code>--with-perl</code> option (see below) to make sure the
correct one is used by <code class="program"><a href="./programs/configure.html">configure</a></code>.
If no Perl 5 interpreter is found by the
<code class="program"><a href="./programs/configure.html">configure</a></code> script, you will not be able to use
the affected support scripts. Of course, you will still be able to
<h2><a name="configure" id="configure">Configuring the source tree</a></h2>
<p>The next step is to configure the Apache HTTPd source tree for your
particular platform and personal requirements. This is done using
the script <code class="program"><a href="./programs/configure.html">configure</a></code> included in
the root directory of the distribution. (Developers downloading
an unreleased version of the Apache HTTPd source tree will need to have
<code>autoconf</code> and <code>libtool</code> installed and will
need to run <code>buildconf</code> before proceeding with the next
steps. This is not necessary for official releases.)</p>
<p>To configure the source tree using all the default options,
simply type <code>./configure</code>. To change the default
options, <code class="program"><a href="./programs/configure.html">configure</a></code> accepts a variety of variables
and command line options.</p>
<p>The most important option is the location <code>--prefix</code>
where the Apache HTTP Server is to be installed later, because Apache
HTTPd has to be
configured for this location to work correctly. More fine-tuned
control of the location of files is possible with additional <a href="programs/configure.html#installationdirectories">configure
options</a>.</p>
<p>Also at this point, you can specify which <a href="programs/configure.html#optionalfeatures">features</a> you
want included in Apache HTTPd by enabling and disabling <a href="mod/">modules</a>. The Apache HTTP Server comes with a <a href="mod/module-dict.html#Status">Base</a> set of modules included by
default. Other modules are enabled using the
<code>--enable-<var>module</var></code> option, where
<var>module</var> is the name of the module with the
<code>mod_</code> string removed and with any underscore converted
to a dash. You can also choose to compile modules as <a href="dso.html">shared objects (DSOs)</a> -- which can be loaded
or unloaded at runtime -- by using the option
<code>--enable-<var>module</var>=shared</code>. Similarly, you can
disable Base modules with the
<code>--disable-<var>module</var></code> option. Be careful when
using these options, since <code class="program"><a href="./programs/configure.html">configure</a></code> cannot warn you
if the module you specify does not exist; it will simply ignore the
option.</p>
<p>In addition, it is sometimes necessary to provide the
<code class="program"><a href="./programs/configure.html">configure</a></code> script with extra information about the
location of your compiler, libraries, or header files. This is
done by passing either environment variables or command line
options to <code class="program"><a href="./programs/configure.html">configure</a></code>. For more information, see the
<p>Next, you can customize your Apache HTTP Server by editing
the <a href="configuring.html">configuration files</a> under
<code><em>PREFIX</em>/conf/</code>.</p>
<div class="example"><p><code>$ vi <em>PREFIX</em>/conf/httpd.conf</code></p></div>
<p>Have a look at the Apache HTTP Server manual under <a href="./">docs/manual/</a> or consult <a href="http://httpd.apache.org/docs/2.2/">http://httpd.apache.org/docs/2.2/</a> for the most recent
version of this manual and a complete reference of available <a href="mod/directives.html">configuration directives</a>.</p>
<a href="./ja/install.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> |
<a href="./ko/install.html" hreflang="ko" rel="alternate" title="Korean"> ko </a></p>
</div><div id="footer">
<p class="apache">Copyright 2007 The Apache Software Foundation.<br />Licensed under the <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache License, Version 2.0</a>.</p>
