<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/93957>93957</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            Standard Headers missing from Clang tool
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            clang
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          spino17
      </td>
    </tr>
</table>

<pre>
    I am building a clang tool and it works fine if I don't include any headers but when I am including `<iostream>` or `<string>` it throws: `'iostream' file not found`. How do I include the standard lib headers to the tool in a "os agnostic way" (without specifying the exact path to the headers on system) ?
</pre>
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