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<div class="ChapSects"><a href="chap2_mj.html#X81D63A85782CD477">2 <span class="Heading">Installation of the <strong class="pkg">cvec</strong>-Package</span></a>
</div>

<h3>2 <span class="Heading">Installation of the <strong class="pkg">cvec</strong>-Package</span></h3>

<p>To get the newest version of this <strong class="pkg">GAP</strong> 4 package download one of the archive files</p>


<ul>
<li><p><code class="file">cvec-x.x.tar.gz</code></p>

</li>
<li><p><code class="file">cvec-x.x.tar.bz2</code></p>

</li>
<li><p><code class="file">cvec-x.x.zip</code></p>

</li>
</ul>
<p>and unpack it using</p>


<pre class="normal">

gunzip cvec-x.x.tar.gz; tar xvf cvec-x.x.tar

</pre>

<p>or</p>


<pre class="normal">

bzip2 -d cvec-x.x.tar.bz2; tar xvf cvec-x.x.tar

</pre>

<p>or</p>


<pre class="normal">

unzip -x cvec-x.x.zip

</pre>

<p>respectively.</p>

<p>Do this in a directory called <q><code class="file">pkg</code></q>, preferably (but not necessarily) in the <q><code class="file">pkg</code></q> subdirectory of your <strong class="pkg">GAP</strong> 4 installation. It creates a subdirectory called <q><code class="file">cvec</code></q>.</p>

<p>The package will not work without the following compilation step.</p>

<p>To compile the C part of the package do (in the <code class="file">pkg</code> directory)</p>


<pre class="normal">

    cd cvec
    ./configure
    make

</pre>

<p>If you installed the package in another <q><code class="file">pkg</code></q> directory than the standard <q><code class="file">pkg</code></q> directory in your <strong class="pkg">GAP</strong> 4 installation, then you have to do two things. Firstly during compilation you have to use the option <code class="code">--with-gaproot=PATH</code> of the <code class="file">configure</code> script where <q>PATH</q> is a path to the main <strong class="pkg">GAP</strong> root directory (if not given the default <q><code class="file">../..</code></q> is assumed).</p>

<p>Secondly you have to specify the path to the directory containing your <q><code class="file">pkg</code></q> directory to <strong class="pkg">GAP</strong>'s list of directories. This can be done by starting GAP with the -l command line option followed by the name of the directory and a semicolon. Then your directory is prepended to the list of directories searched. Otherwise the package is not found by GAP. Of course, you can add this option to your GAP startup script.




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