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| <span id="policy:CMP0057"></span><h1>CMP0057<a class="headerlink" href="#cmp0057" title="Permalink to this headline">ΒΆ</a></h1> |
| <p>Support new <span class="target" id="index-0-command:if"></span><a class="reference internal" href="../command/if.html#command:if" title="if"><code class="xref cmake cmake-command docutils literal"><span class="pre">if()</span></code></a> IN_LIST operator.</p> |
| <p>CMake 3.3 adds support for the new IN_LIST operator.</p> |
| <p>The <code class="docutils literal"><span class="pre">OLD</span></code> behavior for this policy is to ignore the IN_LIST operator. |
| The <code class="docutils literal"><span class="pre">NEW</span></code> behavior is to interpret the IN_LIST operator.</p> |
| <p>This policy was introduced in CMake version 3.3. |
| CMake version 3.8.2 warns when the policy is not set and uses |
| <code class="docutils literal"><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"><span class="pre">cmake_policy()</span></code></a> command to set |
| it to <code class="docutils literal"><span class="pre">OLD</span></code> or <code class="docutils literal"><span class="pre">NEW</span></code> explicitly.</p> |
| <div class="admonition note"> |
| <p class="first admonition-title">Note</p> |
| <p class="last">The <code class="docutils literal"><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"><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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