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1123N/A
1123N/A <div class="section" id="getting-started">
1123N/A<h1>Getting Started<a class="headerlink" href="#getting-started" title="Permalink to this headline">¶</a></h1>
1123N/A<div class="section" id="compiling-and-installing-jansson">
1123N/A<h2>Compiling and Installing Jansson<a class="headerlink" href="#compiling-and-installing-jansson" title="Permalink to this headline">¶</a></h2>
810N/A<p>The Jansson source is available at
810N/A<a class="reference external" href="http://www.digip.org/jansson/releases/">http://www.digip.org/jansson/releases/</a>.</p>
810N/A<div class="section" id="unix-like-systems-including-mingw">
1123N/A<h3>Unix-like systems (including MinGW)<a class="headerlink" href="#unix-like-systems-including-mingw" title="Permalink to this headline">¶</a></h3>
810N/A<p>Unpack the source tarball and change to the source directory:</p>
851N/A<pre class="literal-block">
851N/Abunzip2 -c jansson-2.7.tar.bz2 | tar xf -
810N/Acd jansson-2.7
810N/A</pre>
810N/A<p>The source uses GNU Autotools (<a class="reference external" href="http://www.gnu.org/software/autoconf/">autoconf</a>, <a class="reference external" href="http://www.gnu.org/software/automake/">automake</a>, <a class="reference external" href="http://www.gnu.org/software/libtool/">libtool</a>), so
810N/Acompiling and installing is extremely simple:</p>
810N/A<div class="highlight-c"><div class="highlight"><pre><span class="p">.</span><span class="o">/</span><span class="n">configure</span>
851N/A<span class="n">make</span>
810N/A<span class="n">make</span> <span class="n">check</span>
851N/A<span class="n">make</span> <span class="n">install</span>
810N/A</pre></div>
810N/A</div>
810N/A<p>To change the destination directory (<tt class="docutils literal"><span class="pre">/usr/local</span></tt> by default), use
810N/Athe <tt class="docutils literal"><span class="pre">--prefix=DIR</span></tt> argument to <tt class="docutils literal"><span class="pre">/configure</span></tt>. See <tt class="docutils literal"><span class="pre">/configure</span>
810N/A<span class="pre">--help</span></tt> for the list of all possible installation options. (There are
810N/Ano options to customize the resulting Jansson binary.)</p>
851N/A<p>The command <tt class="docutils literal"><span class="pre">make</span> <span class="pre">check</span></tt> runs the test suite distributed with
810N/AJansson. This step is not strictly necessary, but it may find possible
851N/Aproblems that Jansson has on your platform. If any problems are found,
1010N/Aplease report them.</p>
851N/A<p>If you obtained the source from a Git repository (or any other source
810N/Acontrol system), there&#8217;s no <tt class="docutils literal"><span class="pre">/configure</span></tt> script as it&#8217;s not kept in
810N/Aversion control. To create the script, the build system needs to be
810N/Abootstrapped. There are many ways to do this, but the easiest one is
810N/Ato use <tt class="docutils literal"><span class="pre">autoreconf</span></tt>:</p>
810N/A<div class="highlight-c"><div class="highlight"><pre><span class="n">autoreconf</span> <span class="o">-</span><span class="n">vi</span>
810N/A</pre></div>
1246N/A</div>
1391N/A<p>This command creates the <tt class="docutils literal"><span class="pre">/configure</span></tt> script, which can then be
1029N/Aused as described above.</p>
810N/A</div>
851N/A<div class="section" id="cmake-various-platforms-including-windows">
851N/A<span id="build-cmake"></span><h3>CMake (various platforms, including Windows)<a class="headerlink" href="#cmake-various-platforms-including-windows" title="Permalink to this headline">¶</a></h3>
851N/A<p>Jansson can be built using <a class="reference external" href="http://www.cmake.org">CMake</a>. Create a build directory for an
851N/Aout-of-tree build, change to that directory, and run <tt class="docutils literal"><span class="pre">cmake</span></tt> (or <tt class="docutils literal"><span class="pre">ccmake</span></tt>,
851N/A<tt class="docutils literal"><span class="pre">cmake-gui</span></tt>, or similar) to configure the project.</p>
98N/A<p>See the examples below for more detailed information.</p>
824N/A<div class="admonition note">
98N/A<p class="first admonition-title">Note</p>
98N/A<p class="last">In the below examples <tt class="docutils literal"><span class="pre">..</span></tt> is used as an argument for <tt class="docutils literal"><span class="pre">cmake</span></tt>.
830N/AThis is simply the path to the jansson project root directory.
1026N/AIn the example it is assumed you&#8217;ve created a sub-directory <tt class="docutils literal"><span class="pre">build</span></tt>
851N/Aand are using that. You could use any path you want.</p>
824N/A</div>
571N/A<div class="section" id="unix-make-files">
98N/A<span id="build-cmake-unix"></span><h4>Unix (Make files)<a class="headerlink" href="#unix-make-files" title="Permalink to this headline">¶</a></h4>
98N/A<p>Generating make files on unix:</p>
98N/A<pre class="literal-block">
1029N/Abunzip2 -c jansson-2.7.tar.bz2 | tar xf -
1123N/Acd jansson-2.7
1123N/A
1123N/Amkdir build
1123N/Acd build
1123N/Acmake .. # or <tt class="xref c c-func docutils literal"><span class="pre">ccmake</span> <span class="pre">..()</span></tt> for a GUI.
341N/A</pre>
366N/A<p>Then to build:</p>
354N/A<div class="highlight-c"><div class="highlight"><pre><span class="n">make</span>
425N/A<span class="n">make</span> <span class="n">check</span>
325N/A<span class="n">make</span> <span class="n">install</span>
456N/A</pre></div>
577N/A</div>
325N/A</div>
354N/A<div class="section" id="windows-visual-studio">
278N/A<h4>Windows (Visual Studio)<a class="headerlink" href="#windows-visual-studio" title="Permalink to this headline">¶</a></h4>
98N/A<p>Creating Visual Studio project files from the command line:</p>
543N/A<pre class="literal-block">
98N/A&lt;unpack&gt;
749N/Acd jansson-2.7
749N/A
98N/Amd build
151N/Acd build
137N/Acmake -G &quot;Visual Studio 10&quot; ..
153N/A</pre>
210N/A<p>You will now have a <em>Visual Studio Solution</em> in your build directory.
366N/ATo run the unit tests build the <tt class="docutils literal"><span class="pre">RUN_TESTS</span></tt> project.</p>
98N/A<p>If you prefer a GUI the <tt class="docutils literal"><span class="pre">cmake</span></tt> line in the above example can
179N/Abe replaced with:</p>
269N/A<div class="highlight-c"><div class="highlight"><pre><span class="n">cmake</span><span class="o">-</span><span class="n">gui</span> <span class="p">..</span>
126N/A</pre></div>
98N/A</div>
98N/A<p>For command line help (including a list of available generators)
287N/Afor <a class="reference external" href="http://www.cmake.org">CMake</a> simply run:</p>
366N/A<div class="highlight-c"><div class="highlight"><pre><span class="n">cmake</span>
499N/A</pre></div>
123N/A</div>
98N/A<p>To list available <a class="reference external" href="http://www.cmake.org">CMake</a> settings (and what they are currently set to)
98N/Afor the project, run:</p>
98N/A<div class="highlight-c"><div class="highlight"><pre><span class="n">cmake</span> <span class="o">-</span><span class="n">LH</span> <span class="p">..</span>
98N/A</pre></div>
851N/A</div>
1391N/A</div>
1029N/A<div class="section" id="mac-osx-xcode">
1138N/A<h4>Mac OSX (Xcode)<a class="headerlink" href="#mac-osx-xcode" title="Permalink to this headline">¶</a></h4>
98N/A<p>If you prefer using Xcode instead of make files on OSX,
98N/Ado the following. (Use the same steps as
98N/Afor <a class="reference internal" href="#build-cmake-unix"><em>Unix</em></a>):</p>
851N/A<div class="highlight-c"><div class="highlight"><pre><span class="p">...</span>
98N/A<span class="n">cmake</span> <span class="o">-</span><span class="n">G</span> <span class="s">&quot;Xcode&quot;</span> <span class="p">..</span>
744N/A</pre></div>
1138N/A</div>
747N/A</div>
744N/A<div class="section" id="additional-cmake-settings">
744N/A<h4>Additional CMake settings<a class="headerlink" href="#additional-cmake-settings" title="Permalink to this headline">¶</a></h4>
744N/A<div class="section" id="shared-library">
493N/A<h5>Shared library<a class="headerlink" href="#shared-library" title="Permalink to this headline">¶</a></h5>
967N/A<p>By default the <a class="reference external" href="http://www.cmake.org">CMake</a> project will generate build files for building the
98N/Astatic library. To build the shared version use:</p>
493N/A<div class="highlight-c"><div class="highlight"><pre><span class="p">...</span>
493N/A<span class="n">cmake</span> <span class="o">-</span><span class="n">DJANSSON_BUILD_SHARED_LIBS</span><span class="o">=</span><span class="mi">1</span> <span class="p">..</span>
967N/A</pre></div>
810N/A</div>
</div>
<div class="section" id="changing-install-directory-same-as-autoconf-prefix">
<h5>Changing install directory (same as autoconf &#8211;prefix)<a class="headerlink" href="#changing-install-directory-same-as-autoconf-prefix" title="Permalink to this headline">¶</a></h5>
<p>Just as with the <a class="reference external" href="http://www.gnu.org/software/autoconf/">autoconf</a> project you can change the destination directory
for <tt class="docutils literal"><span class="pre">make</span> <span class="pre">install</span></tt>. The equivalent for autoconfs <tt class="docutils literal"><span class="pre">/configure</span> <span class="pre">--prefix</span></tt>
in <a class="reference external" href="http://www.cmake.org">CMake</a> is:</p>
<div class="highlight-c"><div class="highlight"><pre><span class="p">...</span>
<span class="n">cmake</span> <span class="o">-</span><span class="n">DCMAKE_INSTALL_PREFIX</span><span class="o">:</span><span class="n">PATH</span><span class="o">=/</span><span class="n">some</span><span class="o">/</span><span class="n">other</span><span class="o">/</span><span class="n">path</span> <span class="p">..</span>
<span class="n">make</span> <span class="n">install</span>
</pre></div>
</div>
</div>
</div>
</div>
<div class="section" id="android">
<h3>Android<a class="headerlink" href="#android" title="Permalink to this headline">¶</a></h3>
<p>Jansson can be built for Android platforms. Android.mk is in the
source root directory. The configuration header file is located in the
<tt class="docutils literal"><span class="pre">android</span></tt> directory in the source distribution.</p>
</div>
<div class="section" id="other-systems">
<h3>Other Systems<a class="headerlink" href="#other-systems" title="Permalink to this headline">¶</a></h3>
<p>On non Unix-like systems, you may be unable to run the <tt class="docutils literal"><span class="pre">/configure</span></tt>
script. In this case, follow these steps. All the files mentioned can
be found in the <tt class="docutils literal"><span class="pre">src/</span></tt> directory.</p>
<ol class="arabic simple">
<li>Create <tt class="docutils literal"><span class="pre">jansson_config.h</span></tt> (which has some platform-specific
parameters that are normally filled in by the <tt class="docutils literal"><span class="pre">/configure</span></tt>
script). Edit <tt class="docutils literal"><span class="pre">jansson_config.h.in</span></tt>, replacing all <tt class="docutils literal"><span class="pre">&#64;variable&#64;</span></tt>
placeholders, and rename the file to <tt class="docutils literal"><span class="pre">jansson_config.h</span></tt>.</li>
<li>Make <tt class="docutils literal"><span class="pre">jansson.h</span></tt> and <tt class="docutils literal"><span class="pre">jansson_config.h</span></tt> available to the
compiler, so that they can be found when compiling programs that
use Jansson.</li>
<li>Compile all the <tt class="docutils literal"><span class="pre">.c</span></tt> files (in the <tt class="docutils literal"><span class="pre">src/</span></tt> directory) into a
library file. Make the library available to the compiler, as in
step 2.</li>
</ol>
</div>
<div class="section" id="building-the-documentation">
<h3>Building the Documentation<a class="headerlink" href="#building-the-documentation" title="Permalink to this headline">¶</a></h3>
<p>(This subsection describes how to build the HTML documentation you are
currently reading, so it can be safely skipped.)</p>
<p>Documentation is in the <tt class="docutils literal"><span class="pre">doc/</span></tt> subdirectory. It&#8217;s written in
<a class="reference external" href="http://docutils.sourceforge.net/rst.html">reStructuredText</a> with <a class="reference external" href="http://sphinx.pocoo.org/">Sphinx</a> annotations. To generate the HTML
documentation, invoke:</p>
<div class="highlight-c"><div class="highlight"><pre><span class="n">make</span> <span class="n">html</span>
</pre></div>
</div>
<p>and point your browser to <tt class="docutils literal"><span class="pre">doc/_build/html/index.html</span></tt>. <a class="reference external" href="http://sphinx.pocoo.org/">Sphinx</a> 1.0
or newer is required to generate the documentation.</p>
</div>
</div>
<div class="section" id="compiling-programs-that-use-jansson">
<h2>Compiling Programs that Use Jansson<a class="headerlink" href="#compiling-programs-that-use-jansson" title="Permalink to this headline">¶</a></h2>
<p>Jansson involves one C header file, <tt class="file docutils literal"><span class="pre">jansson.h</span></tt>, so it&#8217;s enough
to put the line</p>
<div class="highlight-c"><div class="highlight"><pre><span class="cp">#include &lt;jansson.h&gt;</span>
</pre></div>
</div>
<p>in the beginning of every source file that uses Jansson.</p>
<p>There&#8217;s also just one library to link with, <tt class="docutils literal"><span class="pre">libjansson</span></tt>. Compile and
link the program as follows:</p>
<div class="highlight-c"><div class="highlight"><pre><span class="n">cc</span> <span class="o">-</span><span class="n">I /usr/include/jansson</span> <span class="o">-</span><span class="n">o</span> <span class="n">prog</span> <span class="n">prog</span><span class="p">.</span><span class="n">c</span> <span class="o">-</span><span class="n">ljansson</span>
</pre></div>
</div>
<p>Starting from version 1.2, there&#8217;s also support for <a class="reference external" href="http://pkg-config.freedesktop.org/">pkg-config</a>:</p>
<div class="highlight-c"><div class="highlight"><pre>cc -o prog prog.c `pkg-config --cflags --libs jansson`
</pre></div>
</div>
</div>
</div>
</div>
</div>
</div>
<div class="sphinxsidebar">
<div class="sphinxsidebarwrapper">
<h3><a href="index.html">Table Of Contents</a></h3>
<ul>
<li><a class="reference internal" href="#">Getting Started</a><ul>
<li><a class="reference internal" href="#compiling-and-installing-jansson">Compiling and Installing Jansson</a><ul>
<li><a class="reference internal" href="#unix-like-systems-including-mingw">Unix-like systems (including MinGW)</a></li>
<li><a class="reference internal" href="#cmake-various-platforms-including-windows">CMake (various platforms, including Windows)</a><ul>
<li><a class="reference internal" href="#unix-make-files">Unix (Make files)</a></li>
<li><a class="reference internal" href="#windows-visual-studio">Windows (Visual Studio)</a></li>
<li><a class="reference internal" href="#mac-osx-xcode">Mac OSX (Xcode)</a></li>
<li><a class="reference internal" href="#additional-cmake-settings">Additional CMake settings</a><ul>
<li><a class="reference internal" href="#shared-library">Shared library</a></li>
<li><a class="reference internal" href="#changing-install-directory-same-as-autoconf-prefix">Changing install directory (same as autoconf &#8211;prefix)</a></li>
</ul>
</li>
</ul>
</li>
<li><a class="reference internal" href="#android">Android</a></li>
<li><a class="reference internal" href="#other-systems">Other Systems</a></li>
<li><a class="reference internal" href="#building-the-documentation">Building the Documentation</a></li>
</ul>
</li>
<li><a class="reference internal" href="#compiling-programs-that-use-jansson">Compiling Programs that Use Jansson</a></li>
</ul>
</li>
</ul>
<h4>Previous topic</h4>
<p class="topless"><a href="index.html"
title="previous chapter">Jansson Documentation</a></p>
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title="next chapter">Upgrading from 1.x</a></p>
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