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<title>configure - Configure the source tree - Apache HTTP Server</title>
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<p class="apache">Apache HTTP Server Version 2.5</p>
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<a href="http://www.apache.org/">Apache</a> > <a href="http://httpd.apache.org/">HTTP Server</a> > <a href="http://httpd.apache.org/docs/">Documentation</a> > <a href="../">Version 2.5</a> > <a href="./">Programs</a></div><div id="page-content"><div id="preamble"><h1>configure - Configure the source tree</h1>
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<p>The <code>configure</code> script configures the source tree
for compiling and installing the Apache HTTP Server on your
particular platform. Various options allow the compilation of a
server corresponding to your personal requirements.</p>
<p>This script, included in the root directory of the source
distribution, is for compilation on Unix and Unix-like systems
</div>
<div id="quickview"><ul id="toc"><li><img alt="" src="/images/down.gif" /> <a href="#synopsis">Synopsis</a></li>
</ul><h3>See also</h3><ul class="seealso"><li><a href="/install.html">Compiling and Installing</a></li></ul><ul class="seealso"><li><a href="#comments_section">Comments</a></li></ul></div>
<div class="section">
<h2><a name="synopsis" id="synopsis">Synopsis</a></h2>
<p>You should call the <code>configure</code> script from within the
root directory of the distribution.</p>
[<var>VAR</var>=<var>VALUE</var>]...</code></p>
<code>CFLAGS</code> ...), specify them as
<code><var>VAR</var>=<var>VALUE</var></code>. See <a href="#env">below</a>
for descriptions of some of the useful variables.</p>
<div class="section">
<h2><a name="options" id="options">Options</a></h2>
<ul>
<li><a href="#configurationoptions">Configuration options</a></li>
<li><a href="#installationdirectories">Installation directories</a></li>
<li><a href="#systemtypes">System types</a></li>
<li><a href="#optionalfeatures">Optional features</a></li>
<li><a href="#supportopt">Options for support programs</a></li>
</ul>
<h3><a name="configurationoptions" id="configurationoptions">Configuration options</a></h3>
<p>The following options influence the behavior of
<code>configure</code> itself.</p>
<dl>
<dt><code>-C</code></dt>
<dt><code>--config-cache</code></dt>
<dt><code>--cache-file=<var>FILE</var></code></dt>
<dd>The test results will be cached in file <var>FILE</var>.
This option is disabled by default.</dd>
<dt><code>-h</code></dt>
<dt><code>--help [short|recursive]</code></dt>
<dd>Output the help and exit. With the argument <code>short</code> only
options specific to this package will displayed. The argument
<code>recursive</code> displays the short help of all the included
packages.</dd>
<dt><code>-n</code></dt>
<dt><code>--no-create</code></dt>
<dd>The <code>configure</code> script is run normally but does
not create output files. This is useful to check the test results
before generating makefiles for compilation.</dd>
<dt><code>-q</code></dt>
<dt><code>--quiet</code></dt>
<dd>Do not print <code>checking ...</code> messages during the
configure process.</dd>
<dt><code>--srcdir=<var>DIR</var></code></dt>
<dd>Defines directory <var>DIR</var> to be the source file directory.
Default is the directory where <code>configure</code> is located, or
the parent directory.</dd>
<dt><code>--silent</code></dt>
<dd>Same as <code>--quiet</code></dd>
<dt>-V</dt>
<dt>--version</dt>
<dd>Display copyright information and exit.</dd>
</dl>
<h3><a name="installationdirectories" id="installationdirectories">Installation
directories</a></h3>
<p>These options define the installation directory. The installation
tree depends on the selected layout.</p>
<dl>
<dt><code>--prefix=<var>PREFIX</var></code></dt>
<dd>Install architecture-independent files in <var>PREFIX</var>.
By default the installation directory is set to
<dt><code>--exec-prefix=<var>EPREFIX</var></code></dt>
<dd>Install architecture-dependent files in <var>EPREFIX</var>.
By default the installation directory is set to the
<var>PREFIX</var> directory.</dd>
</dl>
<p>By default, <code>make install</code> will install all the files in
etc. You can specify an installation prefix other than
for instance <code>--prefix=$HOME</code>.</p>
<h4><a name="layout" id="layout">Define a directory layout</a></h4>
<dl>
<dt><code>--enable-layout=<var>LAYOUT</var></code></dt>
<dd>Configure the source code and build scripts to assume an
installation tree based on the layout <var>LAYOUT</var>. This allows
you to separately specify the locations for each type of file within
file contains several example configurations, and you can also create
your own custom configuration following the examples. The different
layouts in this file are grouped into <code><Layout
FOO>...</Layout></code> sections and referred to by name as
in <code>FOO</code>. The default layout is <code>Apache</code>.</dd>
</dl>
<h4><a name="directoryfinetuning" id="directoryfinetuning">Fine tuning of the installation
directories</a></h4>
<p>For better control of the installation directories, use the options
below. Please note that the directory defaults are set by
<code>autoconf</code> and are overwritten by the corresponding layout
setting.</p>
<dl>
<dt><code>--bindir=<var>DIR</var></code></dt>
<dd>Install user executables in <var>DIR</var>. The user executables
are supporting programs like <code class="program"><a href="/programs/htpasswd.html">htpasswd</a></code>,
<code class="program"><a href="/programs/dbmmanage.html">dbmmanage</a></code>, etc. which are useful for site
administrators. By default <var>DIR</var> is set to
<code><var>EPREFIX</var>/bin</code>.</dd>
<dt><code>--datadir=<var>DIR</var></code></dt>
<dd>Install read-only architecture-independent data in <var>DIR</var>.
By default <code>datadir</code> is set to
<code><var>PREFIX</var>/share</code>. This option is offered by
<code>autoconf</code> and currently unused.</dd>
<dt><code>--includedir=<var>DIR</var></code></dt>
<dd>Install C header files in <var>DIR</var>. By default
<code>includedir</code> is set to
<code><var>EPREFIX</var>/include</code>.</dd>
<dt><code>--infodir=<var>DIR</var></code></dt>
<dd>Install info documentation in <var>DIR</var>.
By default <code>infodir</code> is set to
<code><var>PREFIX</var>/info</code>. This option is currently
unused.</dd>
<dt><code>--libdir=<var>DIR</var></code></dt>
<dd>Install object code libraries in <var>DIR</var>. By default
<code>libdir</code> is set to
<code><var>EPREFIX</var>/lib</code>.</dd>
<dt><code>--libexecdir=<var>DIR</var></code></dt>
<dd>Install the program executables (i.e., shared modules) in
<var>DIR</var>. By default <code>libexecdir</code> is set to
<code><var>EPREFIX</var>/modules</code>.</dd>
<dt><code>--localstatedir=<var>DIR</var></code></dt>
<dd>Install modifiable single-machine data in <var>DIR</var>.
By default <code>localstatedir</code> is set to
<code><var>PREFIX</var>/var</code>. This option is offered by
<code>autoconf</code> and currently unused.</dd>
<dt><code>--mandir=<var>DIR</var></code></dt>
<dd>Install the man documentation in <var>DIR</var>. By default
<code>mandir</code> is set to
<code><var>EPREFIX</var>/man</code>.</dd>
<dt><code>--oldincludedir=<var>DIR</var></code></dt>
<dd>Install C header files for non-gcc in <var>DIR</var>.
By default <code>oldincludedir</code> is set to
<code>autoconf</code> and currently unused.</dd>
<dt><code>--sbindir=<var>DIR</var></code></dt>
<dd>Install the system administrator executables in <var>DIR</var>.
Those are server programs like <code class="program"><a href="/programs/httpd.html">httpd</a></code>,
<code class="program"><a href="/programs/apachectl.html">apachectl</a></code>, <code class="program"><a href="/programs/suexec.html">suexec</a></code>, etc. which
are necessary to run the Apache HTTP Server. By default
<code>sbindir</code> is set to
<code><var>EPREFIX</var>/sbin</code>.</dd>
<dt><code>--sharedstatedir=<var>DIR</var></code></dt>
<dd>Install modifiable architecture-independent data in <var>DIR</var>.
By default <code>sharedstatedir</code> is set to
<code><var>PREFIX</var>/com</code>. This option is offered by
<code>autoconf</code> and currently unused.</dd>
<dt><code>--sysconfdir=<var>DIR</var></code></dt>
<dd>Install read-only single-machine data like the server configuration
<var>DIR</var>. By default <code>sysconfdir</code> is set to
<code><var>PREFIX</var>/conf</code>.</dd>
</dl>
<h3><a name="systemtypes" id="systemtypes">System types</a></h3>
<p>These options are used to cross-compile the Apache HTTP Server to run on
another system. In normal cases, when building and running the server on
the same system, these options are not used.</p>
<dl>
<dt><code>--build=<var>BUILD</var></code></dt>
<dd>Defines the system type of the system on which the tools are being
built. It defaults to the result of the script
<dt><code>--host=<var>HOST</var></code></dt>
<dd>Defines the system type of the system on which the server will run.
<var>HOST</var> defaults to <var>BUILD</var>.</dd>
<dt><code>--target=<var>TARGET</var></code></dt>
<dd>Configure for building compilers for the system type
<var>TARGET</var>. It defaults to <var>HOST</var>. This option is
offered by <code>autoconf</code> and not necessary for the Apache HTTP
Server.</dd>
</dl>
<h3><a name="optionalfeatures" id="optionalfeatures">Optional Features</a></h3>
<p>These options are used to fine tune the features your HTTP server will
have.</p>
<h4><a name="generaloptfeat" id="generaloptfeat">General syntax</a></h4>
<p>Generally you can use the following syntax to enable or disable a
feature:</p>
<dl>
<dt><code>--disable-<var>FEATURE</var></code></dt>
<dd>Do not include <var>FEATURE</var>. This is the same as
<code>--enable-<var>FEATURE</var>=no</code>.</dd>
<dt><code>--enable-<var>FEATURE</var>[=<var>ARG</var>]</code></dt>
<dd>Include <var>FEATURE</var>. The default value for <var>ARG</var>
is <code>yes</code>.</dd>
<dt><code>--enable-<var>MODULE</var>=shared</code></dt>
<dd>The corresponding module will be build as DSO module.
By default enabled modules are linked dynamically.</dd>
<dt><code>--enable-<var>MODULE</var>=static</code></dt>
<dd>The corresponding module will be linked statically.</dd>
</dl>
<div class="note"><h3>Note</h3>
<code>configure</code> will not complain about
<code>--enable-<var>foo</var></code> even if <var>foo</var> doesn't
exist, so you need to type carefully.
</div>
<h4><a name="choosemodules" id="choosemodules">Choosing modules to compile</a></h4>
<p>Most modules are compiled by default and have to be disabled
explicitly or by using the keywords <code>few</code> or
<code>none</code> (see <code>--enable-modules</code>,
<code>--enable-mods-shared</code> and <code>--enable-mods-static</code>
below for further explanation) to be removed.</p>
<p>Other modules are not compiled by default and have to be enabled
explicitly or by using the keywords <code>all</code> or
<code>reallyall</code> to be available.</p>
<p>To find out which modules are compiled by default, run
and look under <code>Optional Features</code>. Suppose you
see this:</p>
<div class="example"><pre>Optional Features:
...
--disable-example1 example module 1
--enable-example2 example module 2
...</pre></div>
<p>Then <code>mod_example1</code> is enabled by default,
and you would use <code>--disable-example1</code> to not
compile it. <code>mod_example2</code> is disabled by
default, and you would use <code>--enable-example2</code>
to compile it.</p>
<h4><a name="mpms" id="mpms">Multi-Processing Modules</a></h4>
the basic behavior of the server. A single MPM must be active in order
for the server to function. The list of available MPMs appears on the
<p>MPMs can be built as DSOs for dynamic loading or statically linked with
the server, and are enabled using the following options:</p>
<dl>
<dt><code>--with-mpm=MPM</code></dt>
<dd>
<p>Choose the default MPM for your server. If MPMs are built as DSO
modules (see <code>--enable-mpms-shared</code>), this directive
selects the MPM which will be loaded in the default configuration
file. Otherwise, this directive selects the only available MPM,
which will be statically linked into the server.</p>
MPM</a> for your operating system will be used.</p>
</dd>
<dt><code>--enable-mpms-shared=<var>MPM-LIST</var></code></dt>
<dd>
<p>Enable a list of MPMs as dynamic shared modules. One of these
modules must be loaded dynamically using the
<p><var>MPM-LIST</var> is a space-separated list of MPM names
enclosed by quotation marks. For example:</p>
<div class="example"><p><code>
--enable-mpms-shared='prefork worker'
</code></p></div>
<p>Additionally you can use the special keyword <code>all</code>,
which will select all MPMs which support dynamic loading on the
current platform and build them as DSO modules. For example:</p>
<div class="example"><p><code>
--enable-mpms-shared=all
</code></p></div>
</dd>
</dl>
<h4><a name="modules" id="modules">Third-party modules</a></h4>
<p>To add additional third-party modules use the following options:</p>
<dl>
<dt><code>--with-module=<var>module-type</var>:<var>module-file</var>[,
<var>module-type</var>:<var>module-file</var>]</code></dt>
<dd><p>Add one or more third-party modules to the list of statically linked
modules. The module source file <code><var>module-file</var></code>
will be searched in the <code>modules/<var>module-type</var></code>
subdirectory of your Apache HTTP server source tree. If it is not found
there <code>configure</code> is considering <var>module-file</var> to be
an absolute file path and tries to copy the source file into the
<var>module-type</var> subdirectory. If the subdirectory doesn't
exist it will be created and populated with a standard
<p>This option is useful to add small external modules consisting of
one source file. For more complex modules you should read the
vendor's documentation.</p>
<div class="note"><h3>Note</h3>
If you want to build a DSO module instead of a statically linked
</dd>
</dl>
<h4><a name="otheroptfeat" id="otheroptfeat">Cumulative and other options</a></h4>
<dl>
<dt><code>--enable-maintainer-mode</code></dt>
<dd>Turn on debugging and compile time warnings
and load all compiled modules.</dd>
<dt><code>--enable-mods-shared=<var>MODULE-LIST</var></code></dt>
<dd>
<p>Defines a list of modules to be enabled and build as dynamic
shared modules. This mean, these module have to be loaded
dynamically by using the <code class="directive"><a href="/mod/mod_so.html#loadmodule">LoadModule</a></code> directive.</p>
<p><var>MODULE-LIST</var> is a space separated list of modulenames
enclosed by quotation marks. The module names are given without the
preceding <code>mod_</code>. For example:</p>
<div class="example"><p><code>
--enable-mods-shared='headers rewrite dav'
</code></p></div>
<p>Additionally you can use the special keywords <code>reallyall</code>,
<code>all</code>, <code>most</code>, <code>few</code> and <code>none</code>.
For example,</p>
<div class="example"><p><code>
--enable-mods-shared=most
</code></p></div>
<p>will compile most modules and build them as DSO modules,</p>
<div class="example"><p><code>
--enable-mods-shared=few
</code></p></div>
<p>will only compile a very basic set of modules.</p>
<p>The default set is <code>most</code>.</p>
<p>The <code class="directive"><a href="/mod/mod_so.html#loadmodule">LoadModule</a></code> directives for
the chosen modules will be automatically generated in the main
configuration file. By default, all those directives will be commented
out except for the modules that are either required or explicitly selected
by a configure <code>--enable-foo</code> argument. You can change the set
of loaded modules by activating or deactivating the <code class="directive"><a href="/mod/mod_so.html#loadmodule">LoadModule</a></code> directives in
<code class="directive"><a href="/mod/mod_so.html#loadmodule">LoadModule</a></code> directives for all
built modules can be activated via the configure option
<code>--enable-load-all-modules</code>.</p>
<p><strong>Caveat:</strong>
<code>--enable-mods-shared=all</code> does not actually build all
modules. To build all modules then, one might use:</p>
<div class="example"><p><code>
/configure \<br />
<span class="indent">
--with-ldap \<br />
--enable-mods-shared="all ssl ldap cache proxy authn_alias file_cache authnz_ldap charset_lite dav_lock cache_disk"
</span>
</code></p></div>
</dd>
<dt><code>--enable-mods-static=<var>MODULE-LIST</var></code></dt>
<dd>This option behaves similar to <code>--enable-mods-shared</code>,
but will link the given modules statically. This mean, these modules
will always be present while running <code class="program"><a href="/programs/httpd.html">httpd</a></code>. They need
not be loaded with <code class="directive"><a href="/mod/mod_so.html#loadmodule">LoadModule</a></code>.</dd>
<dt><code>--enable-modules=<var>MODULE-LIST</var></code></dt>
<dd>This option behaves like to <code>--enable-mods-shared</code>,
and will also link the given modules dynamically. The special
keyword <code>none</code> disables the build of all modules.</dd>
<dt><code>--enable-v4-mapped</code></dt>
<dd>Allow IPv6 sockets to handle IPv4 connections.</dd>
<dt><code>--with-port=<var>PORT</var></code></dt>
<dd>This defines the port on which <code class="program"><a href="/programs/httpd.html">httpd</a></code> will listen.
This port number is used when generating the configuration file
<dt><code>--with-program-name</code></dt>
<dd>Define an alternative executable name. The default is
<code>httpd</code>.</dd>
</dl>
<h3><a name="packages" id="packages">Optional packages</a></h3>
<p>These options are used to define optional packages.</p>
<h4><a name="generalpackages" id="generalpackages">General syntax</a></h4>
<p>Generally you can use the following syntax to define an optional
package:</p>
<dl>
<dt><code>--with-<var>PACKAGE</var>[=<var>ARG</var>]</code></dt>
<dd>Use the package <var>PACKAGE</var>. The default value for
<var>ARG</var> is <code>yes</code>.</dd>
<dt><code>--without-<var>PACKAGE</var></code></dt>
<dd>Do not use the package <var>PACKAGE</var>. This is the same as
<code>--with-<var>PACKAGE</var>=no</code>. This option is provided by
<code>autoconf</code> but not very useful for the Apache HTTP
Server.</dd>
</dl>
<h4><a name="packageopt" id="packageopt">Specific packages</a></h4>
<dl>
<dt><code>--with-apr=<var>DIR</var>|<var>FILE</var></code></dt>
<dd>The <a class="glossarylink" href="/glossary.html#apr" title="see glossary">Apache Portable Runtime</a> (APR)
is part of the httpd
source distribution and will automatically be build together with the
HTTP server. If you want to use an already installed APR instead you
have to tell <code>configure</code> the path to the
<code>apr-config</code> script. You may set the absolute path and name
or the directory to the installed APR. <code>apr-config</code> must
exist within this directory or the subdirectory
<code>bin</code>.</dd>
<dt><code>--with-apr-util=<var>DIR</var>|<var>FILE</var></code></dt>
<dd>The Apache Portable Runtime Utilities (APU) are part of the
httpd source distribution and will automatically be build
together with the HTTP server. If you want to use an already installed
APU instead you have to tell <code>configure</code> the path to the
<code>apu-config</code> script. You may set the absolute path and name
or the directory to the installed APU. <code>apu-config</code> must
exist within this directory or the subdirectory
<code>bin</code>.</dd>
<dt><code>--with-ssl=<var>DIR</var></code></dt>
<dd>If <code class="module"><a href="/mod/mod_ssl.html">mod_ssl</a></code> has been enabled <code>configure</code>
searches for an installed OpenSSL. You can set the directory path
<dt><code>--with-z=<var>DIR</var></code></dt>
<dd><code>configure</code> searches automatically for an installed
<code>zlib</code> library if your source configuration requires one
(e.g., when <code class="module"><a href="/mod/mod_deflate.html">mod_deflate</a></code> is enabled). You can set the
directory path to the compression library instead.</dd>
</dl>
<p>Several features of the Apache HTTP Server, including
<code class="module"><a href="/mod/mod_authn_dbm.html">mod_authn_dbm</a></code> and <code class="module"><a href="/mod/mod_rewrite.html">mod_rewrite</a></code>'s DBM
in the APU, so this database is always available. If you would like to
use other database types, use the following options to enable
them:</p>
<dl>
<dt><code>--with-gdbm[=<var>path</var>]</code></dt>
<dd>If no <var>path</var> is specified, <code>configure</code> will
search for the include files and libraries of a GNU DBM
installation in the usual search paths. An explicit
<var>path</var> will cause <code>configure</code> to look in
<code><var>path</var>/lib</code> and
<code><var>path</var>/include</code> for the relevant files.
Finally, the <var>path</var> may specify specific include and
library paths separated by a colon.</dd>
<dt><code>--with-ndbm[=<var>path</var>]</code></dt>
<dd>Like <code>--with-gdbm</code>, but searches for a New DBM
installation.</dd>
<dt><code>--with-berkeley-db[=<var>path</var>]</code></dt>
<dd>Like <code>--with-gdbm</code>, but searches for a Berkeley DB
installation.</dd>
</dl>
<div class="note"><h3>Note</h3>
<p>The DBM options are provided by the APU and passed through to its
configuration script. They are useless when using an already
installed APU defined by <code>--with-apr-util</code>.</p>
<p>You may use more then one DBM implementation together with your
HTTP server. The appropriated DBM type will be configured within
the runtime configuration at each time.</p>
</div>
<h3><a name="supportopt" id="supportopt">Options for support programs</a></h3>
<dl>
<dt><code>--enable-static-support</code></dt>
<dd>Build a statically linked version of the support binaries. This
means, a stand-alone executable will be built with all the necessary
libraries integrated. Otherwise the support binaries are linked
dynamically by default.</dd>
<dt><code>--enable-suexec</code></dt>
<dd>Use this option to enable <code class="program"><a href="/programs/suexec.html">suexec</a></code>, which allows you to set
uid and gid for spawned processes. <strong>Do not use this
option unless you understand all the security implications of
running a suid binary on your server.</strong> Further options
to configure <code class="program"><a href="/programs/suexec.html">suexec</a></code> are described <a href="#suexec">below</a>.</dd>
</dl>
<p>It is possible to create a statically linked binary of a single
support program by using the following options:</p>
<dl>
<dt><code>--enable-static-ab</code></dt>
<dd>Build a statically linked version of <code class="program"><a href="/programs/ab.html">ab</a></code>.</dd>
<dt><code>--enable-static-checkgid</code></dt>
<dd>Build a statically linked version of <code>checkgid</code>.</dd>
<dt><code>--enable-static-htdbm</code></dt>
<dd>Build a statically linked version of <code class="program"><a href="/programs/htdbm.html">htdbm</a></code>.</dd>
<dt><code>--enable-static-htdigest</code></dt>
<dd>Build a statically linked version of <code class="program"><a href="/programs/htdigest.html">htdigest</a></code>.</dd>
<dt><code>--enable-static-htpasswd</code></dt>
<dd>Build a statically linked version of <code class="program"><a href="/programs/htpasswd.html">htpasswd</a></code>.</dd>
<dt><code>--enable-static-logresolve</code></dt>
<dd>Build a statically linked version of <code class="program"><a href="/programs/logresolve.html">logresolve</a></code>.</dd>
<dt><code>--enable-static-rotatelogs</code></dt>
<dd>Build a statically linked version of <code class="program"><a href="/programs/rotatelogs.html">rotatelogs</a></code>.</dd>
</dl>
<h4><a name="suexec" id="suexec"><code>suexec</code> configuration options</a></h4>
<p>The following options are used to fine tune the behavior of <code class="program"><a href="/programs/suexec.html">suexec</a></code>. See <a href="suexec.html#install">Configuring and installing suEXEC</a>
for further information.</p>
<dl>
<dt><code>--with-suexec-bin</code></dt>
<dd>This defines the path to <code class="program"><a href="/programs/suexec.html">suexec</a></code> binary.
Default is <code>--sbindir</code> (see <a href="#directoryfinetuning">Fine tuning of installation directories</a>).</dd>
<dt><code>--with-suexec-caller</code></dt>
<dd>This defines the user allowed to call <code class="program"><a href="/programs/suexec.html">suexec</a></code>.
It should be the same as the user under which
<dt><code>--with-suexec-docroot</code></dt>
<dd>This defines the directory tree under which <code class="program"><a href="/programs/suexec.html">suexec</a></code> access is allowed for executables. Default value is
<dt><code>--with-suexec-gidmin</code></dt>
<dd>Define this as the lowest GID allowed to be a target user for
<code class="program"><a href="/programs/suexec.html">suexec</a></code>. The default value is 100.</dd>
<dt><code>--with-suexec-logfile</code></dt>
<dd>This defines the filename of the <code class="program"><a href="/programs/suexec.html">suexec</a></code> logfile.
By default the logfile is named <code>suexec_log</code> and located in
<code>--logfiledir</code>.</dd>
<dt><code>--with-suexec-safepath</code></dt>
<dd>Define the value of the environment variable <code>PATH</code> to
be set for processes started by <code class="program"><a href="/programs/suexec.html">suexec</a></code>. Default
<dt><code>--with-suexec-userdir</code></dt>
<dd>This defines the subdirectory under the user's directory that
contains all executables for which <code class="program"><a href="/programs/suexec.html">suexec</a></code> access
is allowed. This setting is necessary when you want to use
<code class="program"><a href="/programs/suexec.html">suexec</a></code> together with user-specific directories (as
provided by <code class="module"><a href="/mod/mod_userdir.html">mod_userdir</a></code>). The default is
<code>public_html</code>.</dd>
<dt><code>--with-suexec-uidmin</code></dt>
<dd>Define this as the lowest UID allowed to be a target user for
<code class="program"><a href="/programs/suexec.html">suexec</a></code>. The default value is 100.</dd>
<dt><code>--with-suexec-umask</code></dt>
<dd>Set <code>umask</code> for processes started by
<code class="program"><a href="/programs/suexec.html">suexec</a></code>. It defaults to your system settings.</dd>
</dl>
<div class="section">
<h2><a name="env" id="env">Environment variables</a></h2>
<p>There are some useful environment variables to override the choices made by
<code>configure</code> or to help it to find libraries and programs with
nonstandard names or locations.</p>
<dl>
<dt><code>CC</code></dt>
<dd>Define the C compiler command to be used for compilation.</dd>
<dt><code>CFLAGS</code></dt>
<dd>Set C compiler flags you want to use for compilation.</dd>
<dt><code>CPP</code></dt>
<dd>Define the C preprocessor command to be used.</dd>
<dt><code>CPPFLAGS</code></dt>
if you have headers in a nonstandard directory <var>includedir</var>.</dd>
<dt><code>LDFLAGS</code></dt>
libraries in a nonstandard directory <var>libdir</var>.</dd>
</dl>
</div></div>
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