t systems, but the extension may be different on yours) must be placed in one of the directories automatically scanned by the run-time loader (such as <code>/usr/lib</code>); if not, the directory containing the library should be named in the colon-separated list of directories specified by the environment variable <code>LD_LIBRARY_PATH</code>, e.g.</p>

<pre>LD_LIBRARY_PATH="/usr/local/pgplot"; export LD_LIBRARY_PATH <i>(sh)</i>
setenv LD_LIBRARY_PATH /usr/local/pgplot <i>(csh)</i>
</pre>

<p>Take care whe