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| <div class="section" id="interface-system-include-directories"> |
| <span id="prop_tgt:INTERFACE_SYSTEM_INCLUDE_DIRECTORIES"></span><h1>INTERFACE_SYSTEM_INCLUDE_DIRECTORIES<a class="headerlink" href="#interface-system-include-directories" title="Permalink to this headline">ΒΆ</a></h1> |
| <p>List of public system include directories for a library.</p> |
| <p>Targets may populate this property to publish the include directories |
| which contain system headers, and therefore should not result in |
| compiler warnings. The <span class="target" id="index-0-command:target_include_directories"></span><a class="reference internal" href="../command/target_include_directories.html#command:target_include_directories" title="target_include_directories"><code class="xref cmake cmake-command docutils literal"><span class="pre">target_include_directories(SYSTEM)</span></code></a> |
| command signature populates this property with values given to the |
| <code class="docutils literal"><span class="pre">PUBLIC</span></code> and <code class="docutils literal"><span class="pre">INTERFACE</span></code> keywords.</p> |
| <p>Projects may also get and set the property directly, but must be aware that |
| adding directories to this property does not make those directories used |
| during compilation. Adding directories to this property marks directories |
| as <code class="docutils literal"><span class="pre">SYSTEM</span></code> which otherwise would be used in a non-<code class="docutils literal"><span class="pre">SYSTEM</span></code> manner. This |
| can appear similar to ‘duplication’, so prefer the |
| high-level <span class="target" id="index-1-command:target_include_directories"></span><a class="reference internal" href="../command/target_include_directories.html#command:target_include_directories" title="target_include_directories"><code class="xref cmake cmake-command docutils literal"><span class="pre">target_include_directories(SYSTEM)</span></code></a> command and avoid |
| setting the property by low-level means.</p> |
| <p>When target dependencies are specified using <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>, |
| CMake will read this property from all target dependencies to mark the |
| same include directories as containing system headers.</p> |
| <p>Contents of <code class="docutils literal"><span class="pre">INTERFACE_SYSTEM_INCLUDE_DIRECTORIES</span></code> may use “generator |
| expressions” with the syntax <code class="docutils literal"><span class="pre">$<...></span></code>. 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 |
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