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| <div class="section" id="interface-link-libraries"> |
| <span id="prop_tgt:INTERFACE_LINK_LIBRARIES"></span><h1>INTERFACE_LINK_LIBRARIES<a class="headerlink" href="#interface-link-libraries" title="Permalink to this headline">¶</a></h1> |
| <p>List public interface libraries for a library.</p> |
| <p>This property contains the list of transitive link dependencies. When |
| the target is linked into another target using the |
| <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 notranslate"><span class="pre">target_link_libraries()</span></code></a> command, the libraries listed (and |
| recursively their link interface libraries) will be provided to the |
| other target also. This property is overridden by the |
| <span class="target" id="index-0-prop_tgt:LINK_INTERFACE_LIBRARIES"></span><a class="reference internal" href="LINK_INTERFACE_LIBRARIES.html#prop_tgt:LINK_INTERFACE_LIBRARIES" title="LINK_INTERFACE_LIBRARIES"><code class="xref cmake cmake-prop_tgt docutils literal notranslate"><span class="pre">LINK_INTERFACE_LIBRARIES</span></code></a> or |
| <span class="target" id="index-0-prop_tgt:LINK_INTERFACE_LIBRARIES_<CONFIG>"></span><a class="reference internal" href="LINK_INTERFACE_LIBRARIES_CONFIG.html#prop_tgt:LINK_INTERFACE_LIBRARIES_<CONFIG>" title="LINK_INTERFACE_LIBRARIES_<CONFIG>"><code class="xref cmake cmake-prop_tgt docutils literal notranslate"><span class="pre">LINK_INTERFACE_LIBRARIES_<CONFIG></span></code></a> property if policy |
| <span class="target" id="index-0-policy:CMP0022"></span><a class="reference internal" href="../policy/CMP0022.html#policy:CMP0022" title="CMP0022"><code class="xref cmake cmake-policy docutils literal notranslate"><span class="pre">CMP0022</span></code></a> is <code class="docutils literal notranslate"><span class="pre">OLD</span></code> or unset.</p> |
| <p>The value of this property is used by the generators when constructing |
| the link rule for a dependent target. A dependent target's direct |
| link dependencies, specified by its <span class="target" id="index-0-prop_tgt:LINK_LIBRARIES"></span><a class="reference internal" href="LINK_LIBRARIES.html#prop_tgt:LINK_LIBRARIES" title="LINK_LIBRARIES"><code class="xref cmake cmake-prop_tgt docutils literal notranslate"><span class="pre">LINK_LIBRARIES</span></code></a> target |
| property, are linked first, followed by indirect dependencies from the |
| transitive closure of the direct dependencies' |
| <code class="docutils literal notranslate"><span class="pre">INTERFACE_LINK_LIBRARIES</span></code> properties. See policy <span class="target" id="index-1-policy:CMP0022"></span><a class="reference internal" href="../policy/CMP0022.html#policy:CMP0022" title="CMP0022"><code class="xref cmake cmake-policy docutils literal notranslate"><span class="pre">CMP0022</span></code></a>.</p> |
| <p>Contents of <code class="docutils literal notranslate"><span class="pre">INTERFACE_LINK_LIBRARIES</span></code> may use "generator expressions" |
| with the syntax <code class="docutils literal notranslate"><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 notranslate"><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 notranslate"><span class="pre">cmake-buildsystem(7)</span></code></a> |
| manual for more on defining buildsystem properties.</p> |
| <div class="admonition note"> |
| <p class="admonition-title">Note</p> |
| <p>A call to <span class="target" id="index-1-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 notranslate"><span class="pre">target_link_libraries(<target></span> <span class="pre">...)</span></code></a> may update this |
| property on <code class="docutils literal notranslate"><span class="pre"><target></span></code>. If <code class="docutils literal notranslate"><span class="pre"><target></span></code> was not created in the same |
| directory as the call then <span class="target" id="index-2-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 notranslate"><span class="pre">target_link_libraries()</span></code></a> will wrap each |
| entry with the form <code class="docutils literal notranslate"><span class="pre">::@(directory-id);...;::@</span></code>, where the <code class="docutils literal notranslate"><span class="pre">::@</span></code> is |
| literal and the <code class="docutils literal notranslate"><span class="pre">(directory-id)</span></code> is unspecified. |
| This tells the generators that the named libraries must be looked up in |
| the scope of the caller rather than in the scope in which the |
| <code class="docutils literal notranslate"><span class="pre"><target></span></code> was created. Valid directory ids are stripped on export |
| by the <span class="target" id="index-0-command:install"></span><a class="reference internal" href="../command/install.html#command:install" title="install"><code class="xref cmake cmake-command docutils literal notranslate"><span class="pre">install(EXPORT)</span></code></a> and <span class="target" id="index-0-command:export"></span><a class="reference internal" href="../command/export.html#command:export" title="export"><code class="xref cmake cmake-command docutils literal notranslate"><span class="pre">export()</span></code></a> commands.</p> |
| </div> |
| <div class="section" id="creating-relocatable-packages"> |
| <h2>Creating Relocatable Packages<a class="headerlink" href="#creating-relocatable-packages" title="Permalink to this headline">¶</a></h2> |
| <p>Note that it is not advisable to populate the |
| <code class="docutils literal notranslate"><span class="pre">INTERFACE_LINK_LIBRARIES</span></code> of a target with absolute paths to dependencies. |
| That would hard-code into installed packages the library file paths |
| for dependencies <strong>as found on the machine the package was made on</strong>.</p> |
| <p>See the <a class="reference internal" href="../manual/cmake-packages.7.html#creating-relocatable-packages"><span class="std std-ref">Creating Relocatable Packages</span></a> section of the |
| <span class="target" id="index-0-manual:cmake-packages(7)"></span><a class="reference internal" href="../manual/cmake-packages.7.html#manual:cmake-packages(7)" title="cmake-packages(7)"><code class="xref cmake cmake-manual docutils literal notranslate"><span class="pre">cmake-packages(7)</span></code></a> manual for discussion of additional care |
| that must be taken when specifying usage requirements while creating |
| packages for redistribution.</p> |
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| <li><a class="reference internal" href="#">INTERFACE_LINK_LIBRARIES</a><ul> |
| <li><a class="reference internal" href="#creating-relocatable-packages">Creating Relocatable Packages</a></li> |
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