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| <span id="command:include_directories"></span><h1>include_directories<a class="headerlink" href="#include-directories" title="Permalink to this headline">ΒΆ</a></h1> |
| <p>Add include directories to the build.</p> |
| <div class="highlight-default"><div class="highlight"><pre><span></span><span class="n">include_directories</span><span class="p">([</span><span class="n">AFTER</span><span class="o">|</span><span class="n">BEFORE</span><span class="p">]</span> <span class="p">[</span><span class="n">SYSTEM</span><span class="p">]</span> <span class="n">dir1</span> <span class="p">[</span><span class="n">dir2</span> <span class="o">...</span><span class="p">])</span> |
| </pre></div> |
| </div> |
| <p>Add the given directories to those the compiler uses to search for |
| include files. Relative paths are interpreted as relative to the |
| current source directory.</p> |
| <p>The include directories are added to the <span class="target" id="index-0-prop_dir:INCLUDE_DIRECTORIES"></span><a class="reference internal" href="../prop_dir/INCLUDE_DIRECTORIES.html#prop_dir:INCLUDE_DIRECTORIES" title="INCLUDE_DIRECTORIES"><code class="xref cmake cmake-prop_dir docutils literal"><span class="pre">INCLUDE_DIRECTORIES</span></code></a> |
| directory property for the current <code class="docutils literal"><span class="pre">CMakeLists</span></code> file. They are also |
| added to the <span class="target" id="index-0-prop_tgt:INCLUDE_DIRECTORIES"></span><a class="reference internal" href="../prop_tgt/INCLUDE_DIRECTORIES.html#prop_tgt:INCLUDE_DIRECTORIES" title="INCLUDE_DIRECTORIES"><code class="xref cmake cmake-prop_tgt docutils literal"><span class="pre">INCLUDE_DIRECTORIES</span></code></a> target property for each |
| target in the current <code class="docutils literal"><span class="pre">CMakeLists</span></code> file. The target property values |
| are the ones used by the generators.</p> |
| <p>By default the directories specified are appended onto the current list of |
| directories. This default behavior can be changed by setting |
| <span class="target" id="index-0-variable:CMAKE_INCLUDE_DIRECTORIES_BEFORE"></span><a class="reference internal" href="../variable/CMAKE_INCLUDE_DIRECTORIES_BEFORE.html#variable:CMAKE_INCLUDE_DIRECTORIES_BEFORE" title="CMAKE_INCLUDE_DIRECTORIES_BEFORE"><code class="xref cmake cmake-variable docutils literal"><span class="pre">CMAKE_INCLUDE_DIRECTORIES_BEFORE</span></code></a> to <code class="docutils literal"><span class="pre">ON</span></code>. By using |
| <code class="docutils literal"><span class="pre">AFTER</span></code> or <code class="docutils literal"><span class="pre">BEFORE</span></code> explicitly, you can select between appending and |
| prepending, independent of the default.</p> |
| <p>If the <code class="docutils literal"><span class="pre">SYSTEM</span></code> option is given, the compiler will be told the |
| directories are meant as system include directories on some platforms. |
| Signalling this setting might achieve effects such as the compiler |
| skipping warnings, or these fixed-install system files not being |
| considered in dependency calculations - see compiler docs.</p> |
| <p>Arguments to <code class="docutils literal"><span class="pre">include_directories</span></code> may use “generator expressions” with |
| the syntax “$<...>”. See the <span class="target" id="index-0-manual:cmake-generator-expressions(7)"></span><a class="reference internal" href="../manual/cmake-generator-expressions.7.html#manual:cmake-generator-expressions(7)" title="cmake-generator-expressions(7)"><code class="xref cmake cmake-manual docutils literal"><span class="pre">cmake-generator-expressions(7)</span></code></a> |
| manual for available expressions. See the <span class="target" id="index-0-manual:cmake-buildsystem(7)"></span><a class="reference internal" href="../manual/cmake-buildsystem.7.html#manual:cmake-buildsystem(7)" title="cmake-buildsystem(7)"><code class="xref cmake cmake-manual docutils literal"><span class="pre">cmake-buildsystem(7)</span></code></a> |
| manual for more on defining buildsystem properties.</p> |
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