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<span id="variable:CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT"></span><h1>CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT<a class="headerlink" href="#cmake-install-prefix-initialized-to-default" title="Permalink to this headline">ΒΆ</a></h1>
<div class="versionadded">
<p><span class="versionmodified added">New in version 3.7.1.</span></p>
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<p>CMake sets this variable to a <code class="docutils literal notranslate"><span class="pre">TRUE</span></code> value when the
<span class="target" id="index-0-variable:CMAKE_INSTALL_PREFIX"></span><a class="reference internal" href="CMAKE_INSTALL_PREFIX.html#variable:CMAKE_INSTALL_PREFIX" title="CMAKE_INSTALL_PREFIX"><code class="xref cmake cmake-variable docutils literal notranslate"><span class="pre">CMAKE_INSTALL_PREFIX</span></code></a> has just been initialized to
its default value, typically on the first run of CMake within
a new build tree. This can be used by project code to change
the default without overriding a user-provided value:</p>
<div class="highlight-cmake notranslate"><div class="highlight"><pre><span></span><span class="nf">if(</span><span class="no">CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT</span><span class="nf">)</span><span class="w"></span>
<span class="w"> </span><span class="nf">set(</span><span class="no">CMAKE_INSTALL_PREFIX</span><span class="w"> </span><span class="s">&quot;/my/default&quot;</span><span class="w"> </span><span class="no">CACHE</span><span class="w"> </span><span class="no">PATH</span><span class="w"> </span><span class="s">&quot;...&quot;</span><span class="w"> </span><span class="no">FORCE</span><span class="nf">)</span><span class="w"></span>
<span class="nf">endif()</span><span class="w"></span>
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