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| <div class="section" id="cmp0038"> |
| <span id="policy:CMP0038"></span><h1>CMP0038<a class="headerlink" href="#cmp0038" title="Permalink to this headline">ΒΆ</a></h1> |
| <p>Targets may not link directly to themselves.</p> |
| <p>CMake 2.8.12 and lower allowed a build target to link to itself directly with |
| a <span class="target" id="index-0-command:target_link_libraries"></span><a class="reference internal" href="../command/target_link_libraries.html#command:target_link_libraries" title="target_link_libraries"><code class="xref cmake cmake-command docutils literal"><span class="pre">target_link_libraries()</span></code></a> call. This is an indicator of a bug in |
| user code.</p> |
| <p>The OLD behavior for this policy is to ignore targets which list themselves |
| in their own link implementation. The NEW behavior for this policy is to |
| report an error if a target attempts to link to itself.</p> |
| <p>This policy was introduced in CMake version 3.0. CMake version |
| 3.8.2 warns when the policy is not set and uses OLD behavior. Use |
| the cmake_policy command to set it to OLD or NEW 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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