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<div class="section" id="project">
<span id="command:project"></span><h1>project<a class="headerlink" href="#project" title="Permalink to this headline">ΒΆ</a></h1>
<p>Set a name, version, and enable languages for the entire project.</p>
<div class="highlight-cmake"><div class="highlight"><pre><span></span><span class="nb">project</span><span class="p">(</span><span class="s">&lt;PROJECT-NAME&gt;</span> <span class="s">[LANGUAGES]</span> <span class="s">[&lt;language-name&gt;...]</span><span class="p">)</span>
<span class="nb">project</span><span class="p">(</span><span class="s">&lt;PROJECT-NAME&gt;</span>
<span class="s">[VERSION</span> <span class="s">&lt;major&gt;[.&lt;minor&gt;[.&lt;patch&gt;[.&lt;tweak&gt;]]]]</span>
<span class="s">[LANGUAGES</span> <span class="s">&lt;language-name&gt;...]</span><span class="p">)</span>
</pre></div>
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<p>Sets the name of the project and stores the name in the
<span class="target" id="index-0-variable:PROJECT_NAME"></span><a class="reference internal" href="../variable/PROJECT_NAME.html#variable:PROJECT_NAME" title="PROJECT_NAME"><code class="xref cmake cmake-variable docutils literal"><span class="pre">PROJECT_NAME</span></code></a> variable. Additionally this sets variables</p>
<ul class="simple">
<li><span class="target" id="index-0-variable:PROJECT_SOURCE_DIR"></span><a class="reference internal" href="../variable/PROJECT_SOURCE_DIR.html#variable:PROJECT_SOURCE_DIR" title="PROJECT_SOURCE_DIR"><code class="xref cmake cmake-variable docutils literal"><span class="pre">PROJECT_SOURCE_DIR</span></code></a>,
<span class="target" id="index-0-variable:&lt;PROJECT-NAME&gt;_SOURCE_DIR"></span><a class="reference internal" href="../variable/PROJECT-NAME_SOURCE_DIR.html#variable:&lt;PROJECT-NAME&gt;_SOURCE_DIR" title="&lt;PROJECT-NAME&gt;_SOURCE_DIR"><code class="xref cmake cmake-variable docutils literal"><span class="pre">&lt;PROJECT-NAME&gt;_SOURCE_DIR</span></code></a></li>
<li><span class="target" id="index-0-variable:PROJECT_BINARY_DIR"></span><a class="reference internal" href="../variable/PROJECT_BINARY_DIR.html#variable:PROJECT_BINARY_DIR" title="PROJECT_BINARY_DIR"><code class="xref cmake cmake-variable docutils literal"><span class="pre">PROJECT_BINARY_DIR</span></code></a>,
<span class="target" id="index-0-variable:&lt;PROJECT-NAME&gt;_BINARY_DIR"></span><a class="reference internal" href="../variable/PROJECT-NAME_BINARY_DIR.html#variable:&lt;PROJECT-NAME&gt;_BINARY_DIR" title="&lt;PROJECT-NAME&gt;_BINARY_DIR"><code class="xref cmake cmake-variable docutils literal"><span class="pre">&lt;PROJECT-NAME&gt;_BINARY_DIR</span></code></a></li>
</ul>
<p>If <code class="docutils literal"><span class="pre">VERSION</span></code> is specified, given components must be non-negative integers.
If <code class="docutils literal"><span class="pre">VERSION</span></code> is not specified, the default version is the empty string.
The <code class="docutils literal"><span class="pre">VERSION</span></code> option may not be used unless policy <span class="target" id="index-0-policy:CMP0048"></span><a class="reference internal" href="../policy/CMP0048.html#policy:CMP0048" title="CMP0048"><code class="xref cmake cmake-policy docutils literal"><span class="pre">CMP0048</span></code></a> is
set to <code class="docutils literal"><span class="pre">NEW</span></code>.</p>
<p>The <span class="target" id="index-0-command:project"></span><a class="reference internal" href="#command:project" title="project"><code class="xref cmake cmake-command docutils literal"><span class="pre">project()</span></code></a> command stores the version number and its components
in variables</p>
<ul class="simple">
<li><span class="target" id="index-0-variable:PROJECT_VERSION"></span><a class="reference internal" href="../variable/PROJECT_VERSION.html#variable:PROJECT_VERSION" title="PROJECT_VERSION"><code class="xref cmake cmake-variable docutils literal"><span class="pre">PROJECT_VERSION</span></code></a>,
<span class="target" id="index-0-variable:&lt;PROJECT-NAME&gt;_VERSION"></span><a class="reference internal" href="../variable/PROJECT-NAME_VERSION.html#variable:&lt;PROJECT-NAME&gt;_VERSION" title="&lt;PROJECT-NAME&gt;_VERSION"><code class="xref cmake cmake-variable docutils literal"><span class="pre">&lt;PROJECT-NAME&gt;_VERSION</span></code></a></li>
<li><span class="target" id="index-0-variable:PROJECT_VERSION_MAJOR"></span><a class="reference internal" href="../variable/PROJECT_VERSION_MAJOR.html#variable:PROJECT_VERSION_MAJOR" title="PROJECT_VERSION_MAJOR"><code class="xref cmake cmake-variable docutils literal"><span class="pre">PROJECT_VERSION_MAJOR</span></code></a>,
<span class="target" id="index-0-variable:&lt;PROJECT-NAME&gt;_VERSION_MAJOR"></span><a class="reference internal" href="../variable/PROJECT-NAME_VERSION_MAJOR.html#variable:&lt;PROJECT-NAME&gt;_VERSION_MAJOR" title="&lt;PROJECT-NAME&gt;_VERSION_MAJOR"><code class="xref cmake cmake-variable docutils literal"><span class="pre">&lt;PROJECT-NAME&gt;_VERSION_MAJOR</span></code></a></li>
<li><span class="target" id="index-0-variable:PROJECT_VERSION_MINOR"></span><a class="reference internal" href="../variable/PROJECT_VERSION_MINOR.html#variable:PROJECT_VERSION_MINOR" title="PROJECT_VERSION_MINOR"><code class="xref cmake cmake-variable docutils literal"><span class="pre">PROJECT_VERSION_MINOR</span></code></a>,
<span class="target" id="index-0-variable:&lt;PROJECT-NAME&gt;_VERSION_MINOR"></span><a class="reference internal" href="../variable/PROJECT-NAME_VERSION_MINOR.html#variable:&lt;PROJECT-NAME&gt;_VERSION_MINOR" title="&lt;PROJECT-NAME&gt;_VERSION_MINOR"><code class="xref cmake cmake-variable docutils literal"><span class="pre">&lt;PROJECT-NAME&gt;_VERSION_MINOR</span></code></a></li>
<li><span class="target" id="index-0-variable:PROJECT_VERSION_PATCH"></span><a class="reference internal" href="../variable/PROJECT_VERSION_PATCH.html#variable:PROJECT_VERSION_PATCH" title="PROJECT_VERSION_PATCH"><code class="xref cmake cmake-variable docutils literal"><span class="pre">PROJECT_VERSION_PATCH</span></code></a>,
<span class="target" id="index-0-variable:&lt;PROJECT-NAME&gt;_VERSION_PATCH"></span><a class="reference internal" href="../variable/PROJECT-NAME_VERSION_PATCH.html#variable:&lt;PROJECT-NAME&gt;_VERSION_PATCH" title="&lt;PROJECT-NAME&gt;_VERSION_PATCH"><code class="xref cmake cmake-variable docutils literal"><span class="pre">&lt;PROJECT-NAME&gt;_VERSION_PATCH</span></code></a></li>
<li><span class="target" id="index-0-variable:PROJECT_VERSION_TWEAK"></span><a class="reference internal" href="../variable/PROJECT_VERSION_TWEAK.html#variable:PROJECT_VERSION_TWEAK" title="PROJECT_VERSION_TWEAK"><code class="xref cmake cmake-variable docutils literal"><span class="pre">PROJECT_VERSION_TWEAK</span></code></a>,
<span class="target" id="index-0-variable:&lt;PROJECT-NAME&gt;_VERSION_TWEAK"></span><a class="reference internal" href="../variable/PROJECT-NAME_VERSION_TWEAK.html#variable:&lt;PROJECT-NAME&gt;_VERSION_TWEAK" title="&lt;PROJECT-NAME&gt;_VERSION_TWEAK"><code class="xref cmake cmake-variable docutils literal"><span class="pre">&lt;PROJECT-NAME&gt;_VERSION_TWEAK</span></code></a></li>
</ul>
<p>Variables corresponding to unspecified versions are set to the empty string
(if policy <span class="target" id="index-1-policy:CMP0048"></span><a class="reference internal" href="../policy/CMP0048.html#policy:CMP0048" title="CMP0048"><code class="xref cmake cmake-policy docutils literal"><span class="pre">CMP0048</span></code></a> is set to <code class="docutils literal"><span class="pre">NEW</span></code>).</p>
<p>Optionally you can specify which languages your project supports.
Example languages are <code class="docutils literal"><span class="pre">C</span></code>, <code class="docutils literal"><span class="pre">CXX</span></code> (i.e. C++), <code class="docutils literal"><span class="pre">Fortran</span></code>, etc.
By default <code class="docutils literal"><span class="pre">C</span></code> and <code class="docutils literal"><span class="pre">CXX</span></code> are enabled if no language options are
given. Specify language <code class="docutils literal"><span class="pre">NONE</span></code>, or use the <code class="docutils literal"><span class="pre">LANGUAGES</span></code> keyword
and list no languages, to skip enabling any languages.</p>
<p>If a variable exists called <span class="target" id="index-0-variable:CMAKE_PROJECT_&lt;PROJECT-NAME&gt;_INCLUDE"></span><a class="reference internal" href="../variable/CMAKE_PROJECT_PROJECT-NAME_INCLUDE.html#variable:CMAKE_PROJECT_&lt;PROJECT-NAME&gt;_INCLUDE" title="CMAKE_PROJECT_&lt;PROJECT-NAME&gt;_INCLUDE"><code class="xref cmake cmake-variable docutils literal"><span class="pre">CMAKE_PROJECT_&lt;PROJECT-NAME&gt;_INCLUDE</span></code></a>,
the file pointed to by that variable will be included as the last step of the
project command.</p>
<p>The top-level <code class="docutils literal"><span class="pre">CMakeLists.txt</span></code> file for a project must contain a
literal, direct call to the <span class="target" id="index-1-command:project"></span><a class="reference internal" href="#command:project" title="project"><code class="xref cmake cmake-command docutils literal"><span class="pre">project()</span></code></a> command; loading one
through the <span class="target" id="index-0-command:include"></span><a class="reference internal" href="include.html#command:include" title="include"><code class="xref cmake cmake-command docutils literal"><span class="pre">include()</span></code></a> command is not sufficient. If no such
call exists CMake will implicitly add one to the top that enables the
default languages (<code class="docutils literal"><span class="pre">C</span></code> and <code class="docutils literal"><span class="pre">CXX</span></code>).</p>
<div class="admonition note">
<p class="first admonition-title">Note</p>
<p class="last">Call the <span class="target" id="index-0-command:cmake_minimum_required"></span><a class="reference internal" href="cmake_minimum_required.html#command:cmake_minimum_required" title="cmake_minimum_required"><code class="xref cmake cmake-command docutils literal"><span class="pre">cmake_minimum_required()</span></code></a> command at the beginning
of the top-level <code class="docutils literal"><span class="pre">CMakeLists.txt</span></code> file even before calling the
<code class="docutils literal"><span class="pre">project()</span></code> command. It is important to establish version and
policy settings before invoking other commands whose behavior they
may affect. See also policy <span class="target" id="index-0-policy:CMP0000"></span><a class="reference internal" href="../policy/CMP0000.html#policy:CMP0000" title="CMP0000"><code class="xref cmake cmake-policy docutils literal"><span class="pre">CMP0000</span></code></a>.</p>
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