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<span id="variable:CMAKE_FIND_NO_INSTALL_PREFIX"></span><h1>CMAKE_FIND_NO_INSTALL_PREFIX<a class="headerlink" href="#cmake-find-no-install-prefix" title="Permalink to this headline">ΒΆ</a></h1>
<p>Exclude the values of 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> and
<span class="target" id="index-0-variable:CMAKE_STAGING_PREFIX"></span><a class="reference internal" href="CMAKE_STAGING_PREFIX.html#variable:CMAKE_STAGING_PREFIX" title="CMAKE_STAGING_PREFIX"><code class="xref cmake cmake-variable docutils literal notranslate"><span class="pre">CMAKE_STAGING_PREFIX</span></code></a> variables from
<span class="target" id="index-0-variable:CMAKE_SYSTEM_PREFIX_PATH"></span><a class="reference internal" href="CMAKE_SYSTEM_PREFIX_PATH.html#variable:CMAKE_SYSTEM_PREFIX_PATH" title="CMAKE_SYSTEM_PREFIX_PATH"><code class="xref cmake cmake-variable docutils literal notranslate"><span class="pre">CMAKE_SYSTEM_PREFIX_PATH</span></code></a>. CMake adds these project-destination
prefixes to <span class="target" id="index-1-variable:CMAKE_SYSTEM_PREFIX_PATH"></span><a class="reference internal" href="CMAKE_SYSTEM_PREFIX_PATH.html#variable:CMAKE_SYSTEM_PREFIX_PATH" title="CMAKE_SYSTEM_PREFIX_PATH"><code class="xref cmake cmake-variable docutils literal notranslate"><span class="pre">CMAKE_SYSTEM_PREFIX_PATH</span></code></a> by default in order to
support building a series of dependent packages and installing them into
a common prefix. Set <code class="docutils literal notranslate"><span class="pre">CMAKE_FIND_NO_INSTALL_PREFIX</span></code> to <code class="docutils literal notranslate"><span class="pre">TRUE</span></code>
to suppress this behavior.</p>
<p>The <span class="target" id="index-2-variable:CMAKE_SYSTEM_PREFIX_PATH"></span><a class="reference internal" href="CMAKE_SYSTEM_PREFIX_PATH.html#variable:CMAKE_SYSTEM_PREFIX_PATH" title="CMAKE_SYSTEM_PREFIX_PATH"><code class="xref cmake cmake-variable docutils literal notranslate"><span class="pre">CMAKE_SYSTEM_PREFIX_PATH</span></code></a> is initialized on the first call to a
<span class="target" id="index-0-command:project"></span><a class="reference internal" href="../command/project.html#command:project" title="project"><code class="xref cmake cmake-command docutils literal notranslate"><span class="pre">project()</span></code></a> or <span class="target" id="index-0-command:enable_language"></span><a class="reference internal" href="../command/enable_language.html#command:enable_language" title="enable_language"><code class="xref cmake cmake-command docutils literal notranslate"><span class="pre">enable_language()</span></code></a> command. Therefore one must
set <code class="docutils literal notranslate"><span class="pre">CMAKE_FIND_NO_INSTALL_PREFIX</span></code> before this in order to take effect. A
user may set the variable as a cache entry on the command line to achieve this.</p>
<p>Note that the prefix(es) may still be searched for other reasons, such as being
the same prefix as the CMake installation, or for being a built-in system
prefix.</p>
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