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<h3 class="section">17.2 Environment Variables</h3>
<p><a name="index-environment-917"></a><a name="index-environment-variables-918"></a><!-- -->
<p class="noindent">The following environment variables can be set to override some default
settings in GPS:
<dl>
<dt>‘<samp><span class="samp">GPS_ROOT</span></samp>’<dd><a name="index-GPS_005fROOT-919"></a>Override the default root directory specified when GPS
is built (during the <i>configure</i> process, see the file <code>INSTALL</code> in
the GPS sources for more details) to access information such as the location
of the translation files.
<br><dt>‘<samp><span class="samp">GPS_HOME</span></samp>’<dd><a name="index-GPS_005fHOME-920"></a><a name="index-Windows-921"></a>Override the variable HOME if present. All the configuration files and
directories used by GPS are either relative to $HOME/.gps (%HOME%\.gps
under Windows) if GPS_HOME is not set, or to $GPS_HOME/.gps (respectively
%GPS_HOME%\.gps) if set.
<br><dt>‘<samp><span class="samp">GPS_DOC_PATH</span></samp>’<dd><a name="index-GPS_005fDOC_005fPATH-922"></a>Set the search path for the documentation. See <a href="Adding-New-Help-Files.html#Adding-New-Help-Files">Adding New Help Files</a>.
<br><dt>‘<samp><span class="samp">GPS_CUSTOM_PATH</span></samp>’<dd><a name="index-GPS_005fCUSTOM_005fPATH-923"></a>Contains a list of directories to search for custom files. See
<a href="Customizing-through-XML-and-Python-files.html#Customizing-through-XML-and-Python-files">Customizing through XML and Python files</a> for more details.
<br><dt>‘<samp><span class="samp">GPS_CHANGELOG_USER</span></samp>’<dd><a name="index-GPS_005fCHANGELOG_005fUSER-924"></a>Contains the user and e-mail to use in the global ChangeLog
files. Note that the common usage is to have two spaces between the
name and the e-mail. Ex: "John Does <john.doe@home.com>"
<br><dt>‘<samp><span class="samp">GPS_STARTUP_PATH</span></samp>’<dd><a name="index-GPS_005fSTARTUP_005fPATH-925"></a>Contains the value of the <code>PATH</code> environment variable just before GPS
was started. This is used by GPS to restore the proper environment before
spawning applications, no matter what particular directories it needed to
set for its own purpose.
<br><dt>‘<samp><span class="samp">GPS_STARTUP_LD_LIBRARY_PATH</span></samp>’<dd><a name="index-GPS_005fSTARTUP_005fLD_005fLIBRARY_005fPATH-926"></a>Same as <code>GPS_STARTUP_LD_LIBRARY_PATH</code> but for the <code>LD_LIBRARY_PATH</code>
variable.
<br><dt>‘<samp><span class="samp">GPS_MEMORY_MONITOR</span></samp>’<dd><a name="index-GPS_005fMEMORY_005fMONITOR-927"></a>If set, GPS will add special code on every allocation and deallocation,
thus slowing things down a bit, that makes it possible to check where the
biggest amount of memory is allocated, through the
<code>GPS.debug_memory_usage</code> python command.
</dl>
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