<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/134510>134510</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            __has_include should not error if unevaluated
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            new issue
      </td>
    </tr>

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

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

<pre>
    If /tmp/unreadable.cpp is unreadable (e.g. because chmod a-r) then clang gives a fatal error on this conditional.  GCC gets this right and is silent only because the __has_include is unevaluated.

#if 0 && __has_include("/tmp/unreadable.cpp")
#endif


</pre>
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