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| <span id="policy:CMP0019"></span><h1>CMP0019<a class="headerlink" href="#cmp0019" title="Permalink to this headline">ΒΆ</a></h1> |
| <p>Do not re-expand variables in include and link information.</p> |
| <p>CMake 2.8.10 and lower re-evaluated values given to the |
| include_directories, link_directories, and link_libraries commands to |
| expand any leftover variable references at the end of the |
| configuration step. This was for strict compatibility with VERY early |
| CMake versions because all variable references are now normally |
| evaluated during CMake language processing. CMake 2.8.11 and higher |
| prefer to skip the extra evaluation.</p> |
| <p>The OLD behavior for this policy is to re-evaluate the values for |
| strict compatibility. The NEW behavior for this policy is to leave |
| the values untouched.</p> |
| <p>This policy was introduced in CMake version 2.8.11. 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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