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| <div class="section" id="variable-requires"> |
| <span id="command:variable_requires"></span><h1>variable_requires<a class="headerlink" href="#variable-requires" title="Permalink to this headline">ΒΆ</a></h1> |
| <p>Disallowed. See CMake Policy <span class="target" id="index-0-policy:CMP0035"></span><a class="reference internal" href="../policy/CMP0035.html#policy:CMP0035" title="CMP0035"><code class="xref cmake cmake-policy docutils literal"><span class="pre">CMP0035</span></code></a>.</p> |
| <p>Use the <span class="target" id="index-0-command:if"></span><a class="reference internal" href="if.html#command:if" title="if"><code class="xref cmake cmake-command docutils literal"><span class="pre">if()</span></code></a> command instead.</p> |
| <p>Assert satisfaction of an option’s required variables.</p> |
| <div class="highlight-default"><div class="highlight"><pre><span></span><span class="n">variable_requires</span><span class="p">(</span><span class="n">TEST_VARIABLE</span> <span class="n">RESULT_VARIABLE</span> |
| <span class="n">REQUIRED_VARIABLE1</span> |
| <span class="n">REQUIRED_VARIABLE2</span> <span class="o">...</span><span class="p">)</span> |
| </pre></div> |
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| <p>The first argument (<code class="docutils literal"><span class="pre">TEST_VARIABLE</span></code>) is the name of the variable to be |
| tested, if that variable is false nothing else is done. If |
| <code class="docutils literal"><span class="pre">TEST_VARIABLE</span></code> is true, then the next argument (<code class="docutils literal"><span class="pre">RESULT_VARIABLE</span></code>) |
| is a variable that is set to true if all the required variables are set. |
| The rest of the arguments are variables that must be true or not set |
| to NOTFOUND to avoid an error. If any are not true, an error is |
| reported.</p> |
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