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| <span id="variable:ENV"></span><h1>ENV<a class="headerlink" href="#env" title="Permalink to this headline">ΒΆ</a></h1> |
| <p>Operator to read environment variables.</p> |
| <p>Use the syntax <code class="docutils literal notranslate"><span class="pre">$ENV{VAR}</span></code> to read environment variable <code class="docutils literal notranslate"><span class="pre">VAR</span></code>.</p> |
| <p>To test whether an environment variable is defined, use the signature |
| <code class="docutils literal notranslate"><span class="pre">if(DEFINED</span> <span class="pre">ENV{<name>})</span></code> of 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.</p> |
| <p>See the <span class="target" id="index-0-command:set"></span><a class="reference internal" href="../command/set.html#command:set" title="set"><code class="xref cmake cmake-command docutils literal notranslate"><span class="pre">set()</span></code></a> and <span class="target" id="index-0-command:unset"></span><a class="reference internal" href="../command/unset.html#command:unset" title="unset"><code class="xref cmake cmake-command docutils literal notranslate"><span class="pre">unset()</span></code></a> commands to see how to |
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