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| <span id="policy:CMP0017"></span><h1>CMP0017<a class="headerlink" href="#cmp0017" title="Permalink to this headline">ΒΆ</a></h1> |
| <p>Prefer files from the CMake module directory when including from there.</p> |
| <p>Starting with CMake 2.8.4, if a cmake-module shipped with CMake (i.e. |
| located in the CMake module directory) calls <span class="target" id="index-0-command:include"></span><a class="reference internal" href="../command/include.html#command:include" title="include"><code class="xref cmake cmake-command docutils literal notranslate"><span class="pre">include()</span></code></a> or |
| <span class="target" id="index-0-command:find_package"></span><a class="reference internal" href="../command/find_package.html#command:find_package" title="find_package"><code class="xref cmake cmake-command docutils literal notranslate"><span class="pre">find_package()</span></code></a>, the files located in the CMake module directory are |
| preferred over the files in <span class="target" id="index-0-variable:CMAKE_MODULE_PATH"></span><a class="reference internal" href="../variable/CMAKE_MODULE_PATH.html#variable:CMAKE_MODULE_PATH" title="CMAKE_MODULE_PATH"><code class="xref cmake cmake-variable docutils literal notranslate"><span class="pre">CMAKE_MODULE_PATH</span></code></a>. This makes sure |
| that the modules belonging to CMake always get those files included which |
| they expect, and against which they were developed and tested. In all |
| other cases, the files found in <span class="target" id="index-1-variable:CMAKE_MODULE_PATH"></span><a class="reference internal" href="../variable/CMAKE_MODULE_PATH.html#variable:CMAKE_MODULE_PATH" title="CMAKE_MODULE_PATH"><code class="xref cmake cmake-variable docutils literal notranslate"><span class="pre">CMAKE_MODULE_PATH</span></code></a> still take |
| precedence over the ones in the CMake module directory. The <code class="docutils literal notranslate"><span class="pre">OLD</span></code> |
| behavior is to always prefer files from CMAKE_MODULE_PATH over files |
| from the CMake modules directory.</p> |
| <p>This policy was introduced in CMake version 2.8.4. CMake version |
| 3.23.1 warns when the policy is not set and uses <code class="docutils literal notranslate"><span class="pre">OLD</span></code> behavior. Use |
| the <span class="target" id="index-0-command:cmake_policy"></span><a class="reference internal" href="../command/cmake_policy.html#command:cmake_policy" title="cmake_policy"><code class="xref cmake cmake-command docutils literal notranslate"><span class="pre">cmake_policy()</span></code></a> command to set it to <code class="docutils literal notranslate"><span class="pre">OLD</span></code> or <code class="docutils literal notranslate"><span class="pre">NEW</span></code> explicitly.</p> |
| <div class="admonition note"> |
| <p class="admonition-title">Note</p> |
| <p>The <code class="docutils literal notranslate"><span class="pre">OLD</span></code> behavior of a policy is |
| <span class="target" id="index-0-manual:cmake-policies(7)"></span><a class="reference internal" href="../manual/cmake-policies.7.html#manual:cmake-policies(7)" title="cmake-policies(7)"><code class="xref cmake cmake-manual docutils literal notranslate"><span class="pre">deprecated</span> <span class="pre">by</span> <span class="pre">definition</span></code></a> |
| and may be removed in a future version of CMake.</p> |
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