emicolon-separated list of files in the target's <code class="docutils literal notranslate"><span class="pre">&lt;NAME&gt;</span></code> header set,
which has the set type <code class="docutils literal notranslate"><span class="pre">HEADERS</span></code>. If any of the paths are relative,
they are computed relative to the target's source directory. The property
supports <span class="target" id="index-0-manual:cmake-generator-expressions(7)"></span><a class="reference internal" href="../manual/cmake-generato