Sindbad~EG File Manager
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<section id="cmp0130">
<span id="policy:CMP0130"></span><h1>CMP0130<a class="headerlink" href="#cmp0130" title="Permalink to this heading">ΒΆ</a></h1>
<div class="versionadded">
<p><span class="versionmodified added">New in version 3.24.</span></p>
</div>
<p><span class="target" id="index-0-command:while"></span><a class="reference internal" href="../command/while.html#command:while" title="while"><code class="xref cmake cmake-command docutils literal notranslate"><span class="pre">while()</span></code></a> diagnoses condition evaluation errors.</p>
<p>CMake 3.23 and below accidentally tolerated errors encountered while
evaluating the condition passed to the <span class="target" id="index-1-command:while"></span><a class="reference internal" href="../command/while.html#command:while" title="while"><code class="xref cmake cmake-command docutils literal notranslate"><span class="pre">while()</span></code></a> command
(but not the <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 notranslate"><span class="pre">if()</span></code></a> command). For example, the code</p>
<div class="highlight-cmake notranslate"><div class="highlight"><pre><span></span><span class="nf">set(</span><span class="nb">paren</span><span class="w"> </span><span class="s">"("</span><span class="nf">)</span><span class="w"></span>
<span class="nf">while(</span><span class="o">${</span><span class="nt">paren</span><span class="o">}</span><span class="nf">)</span><span class="w"></span>
<span class="nf">endwhile()</span><span class="w"></span>
</pre></div>
</div>
<p>creates an unbalanced parenthesis during condition evaluation.</p>
<p>CMake 3.24 and above prefer to diagnose such errors. This policy
provides compatibility for projects that have not been updated to
fix their condition errors.</p>
<p>The <code class="docutils literal notranslate"><span class="pre">OLD</span></code> behavior for this policy is to ignore errors in
<span class="target" id="index-2-command:while"></span><a class="reference internal" href="../command/while.html#command:while" title="while"><code class="xref cmake cmake-command docutils literal notranslate"><span class="pre">while()</span></code></a> conditions. The <code class="docutils literal notranslate"><span class="pre">NEW</span></code> behavior for this
policy is to diagnose errors in <span class="target" id="index-3-command:while"></span><a class="reference internal" href="../command/while.html#command:while" title="while"><code class="xref cmake cmake-command docutils literal notranslate"><span class="pre">while()</span></code></a> conditions.</p>
<p>This policy was introduced in CMake version 3.24. CMake version 3.26.5
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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