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| <span id="policy:CMP0124"></span><h1>CMP0124<a class="headerlink" href="#cmp0124" title="Permalink to this headline">ΒΆ</a></h1> |
| <div class="versionadded"> |
| <p><span class="versionmodified added">New in version 3.21.</span></p> |
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| <p>When this policy is set to <code class="docutils literal notranslate"><span class="pre">NEW</span></code>, the scope of loop variables defined by the |
| <span class="target" id="index-0-command:foreach"></span><a class="reference internal" href="../command/foreach.html#command:foreach" title="foreach"><code class="xref cmake cmake-command docutils literal notranslate"><span class="pre">foreach()</span></code></a> command is restricted to the loop only. They will be unset |
| at the end of the loop.</p> |
| <p>The <code class="docutils literal notranslate"><span class="pre">OLD</span></code> behavior for this policy still clears the loop variables at the end |
| of the loop, but does not unset them. This leaves them as defined, but empty.</p> |
| <p>This policy was introduced in CMake version 3.21. 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. |
| Unlike many policies, CMake version 3.23.1 does <em>not</em> warn when the policy |
| is not set and simply uses <code class="docutils literal notranslate"><span class="pre">OLD</span></code> behavior.</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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