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<div class="chapter" lang="en">
<div class="titlepage"><div><div><h2 class="title">
<a name="migration"></a>Some formulae for migration from old version</h2></div></div></div>
<div class="toc"><dl>
<dt><span class="sect1"><a href="migration.html#migration-compilation">Compiling and initialising</a></span></dt>
<dt><span class="sect1"><a href="migration-configuration.html">Configuration and connections</a></span></dt>
<dd><dl>
<dt><span class="sect2"><a href="migration-configuration.html#migration-data-sources">Creating data sources</a></span></dt>
<dt><span class="sect2"><a href="migration-configuration.html#migration-connections">Creating connections</a></span></dt>
</dl></dd>
<dt><span class="sect1"><a href="migration-executing-commands.html">Executing commands</a></span></dt>
<dd><dl>
<dt><span class="sect2"><a href="migration-executing-commands.html#migration-creating-commands">Creating commands</a></span></dt>
<dt><span class="sect2"><a href="migration-executing-commands.html#migration-executing-non-queries">Executing <span class="emphasis"><em>non queries</em></span></a></span></dt>
<dt><span class="sect2"><a href="migration-executing-commands.html#migration-executing-normal-queries">Executing normal queries</a></span></dt>
</dl></dd>
<dt><span class="sect1"><a href="ch09s04.html">Managing data</a></span></dt>
<dd><dl>
<dt><span class="sect2"><a href="ch09s04.html#id448468">Something important about data models</a></span></dt>
<dt><span class="sect2"><a href="ch09s04.html#id448502">Accessing directly to columns</a></span></dt>
</dl></dd>
<dt><span class="sect1"><a href="ch09s05.html">Managing errors</a></span></dt>
<dt><span class="sect1"><a href="ch09s06.html">Managing transactions</a></span></dt>
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<div class="sect1" lang="en">
<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="migration-compilation"></a>Compiling and initialising</h2></div></div></div>
<p>
To <a class="link" href="compiling.html" title="Compiling with the library">compile</a> you do not need to link
with many libraries and configure directories of headers files, only
capture the output of <span class="emphasis"><em>pkg-config</em></span> as follows:
</p>
<pre class="programlisting">
<code class="systemitem">$</code> <strong class="userinput"><code> gcc -o main `pkg-config --cflags --libs libgda` main.c</code></strong>
</pre>
<p>
</p>
<p>
Further more, you only need to include one <a class="link" href="installation-configuring.html#installation-development" title="Configuration for development">headers file</a> and it is:
</p>
<pre class="programlisting">
#include <libgda/libgda.h>
</pre>
<p>
</p>
<p>
As in the old version, you need to call <a class="link" href="libgda-libgda.html#gda-init" title="gda_init ()"><span class="emphasis"><em>gda_init()</em></span></a> to
<a class="link" href="connecting.html#initializing" title="Initialising">initialise</a> the library:
</p>
<pre class="programlisting">
gda_init ("TestGDA", "0.1", argc, argv);
</pre>
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