c</code></span>:</p>

<ul>
<li><b>Unix</b> 

<pre class="c">cc -c -I/usr/local/pgplot pgprog.c
f77 -o pgprog pgprog.o -L/usr/local/pgplot -lcpgplot -lpgplot
</pre>

<ul>
<li><code>c</code> is the command used to invoke the C compiler. On some systems, this may be, e.g., <code>gcc</code> or <code>c89</code>.</li>

<li>The <code>-I</code> option in compilation specifies a directory where the linker should look for the header file <code>cpgplot.h</code>.</li>

<li>Note that, for C, compilation and linking are 