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<span id="variable:CMAKE_BUILD_TYPE"></span><h1>CMAKE_BUILD_TYPE<a class="headerlink" href="#cmake-build-type" title="Permalink to this headline">ΒΆ</a></h1>
<p>Specifies the build type on single-configuration generators.</p>
<p>This statically specifies what build type (configuration) will be
built in this build tree. Possible values are empty, <code class="docutils literal"><span class="pre">Debug</span></code>, <code class="docutils literal"><span class="pre">Release</span></code>,
<code class="docutils literal"><span class="pre">RelWithDebInfo</span></code> and <code class="docutils literal"><span class="pre">MinSizeRel</span></code>. This variable is only meaningful to
single-configuration generators (such as <a class="reference internal" href="../manual/cmake-generators.7.html#makefile-generators"><span class="std std-ref">Makefile Generators</span></a> and
<span class="target" id="index-0-generator:Ninja"></span><a class="reference internal" href="../generator/Ninja.html#generator:Ninja" title="Ninja"><code class="xref cmake cmake-generator docutils literal"><span class="pre">Ninja</span></code></a>) i.e. those which choose a single configuration when CMake
runs to generate a build tree as opposed to multi-configuration generators
which offer selection of the build configuration within the generated build
environment. There are many per-config properties and variables
(usually following clean <code class="docutils literal"><span class="pre">SOME_VAR_&lt;CONFIG&gt;</span></code> order conventions), such as
<code class="docutils literal"><span class="pre">CMAKE_C_FLAGS_&lt;CONFIG&gt;</span></code>, specified as uppercase:
<code class="docutils literal"><span class="pre">CMAKE_C_FLAGS_[DEBUG|RELEASE|RELWITHDEBINFO|MINSIZEREL]</span></code>. For example,
in a build tree configured to build type <code class="docutils literal"><span class="pre">Debug</span></code>, CMake will see to
having <span class="target" id="index-0-variable:CMAKE_&lt;LANG&gt;_FLAGS_DEBUG"></span><a class="reference internal" href="CMAKE_LANG_FLAGS_DEBUG.html#variable:CMAKE_&lt;LANG&gt;_FLAGS_DEBUG" title="CMAKE_&lt;LANG&gt;_FLAGS_DEBUG"><code class="xref cmake cmake-variable docutils literal"><span class="pre">CMAKE_C_FLAGS_DEBUG</span></code></a> settings get
added to the <span class="target" id="index-0-variable:CMAKE_&lt;LANG&gt;_FLAGS"></span><a class="reference internal" href="CMAKE_LANG_FLAGS.html#variable:CMAKE_&lt;LANG&gt;_FLAGS" title="CMAKE_&lt;LANG&gt;_FLAGS"><code class="xref cmake cmake-variable docutils literal"><span class="pre">CMAKE_C_FLAGS</span></code></a> settings. See
also <span class="target" id="index-0-variable:CMAKE_CONFIGURATION_TYPES"></span><a class="reference internal" href="CMAKE_CONFIGURATION_TYPES.html#variable:CMAKE_CONFIGURATION_TYPES" title="CMAKE_CONFIGURATION_TYPES"><code class="xref cmake cmake-variable docutils literal"><span class="pre">CMAKE_CONFIGURATION_TYPES</span></code></a>.</p>
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