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<div class="moz-cite-prefix">On 20/09/2022 17:36, Jonathan Kew
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:c6d7a1ca-9d0b-b75e-2149-b16865f023bf@gmail.com"><br>
Have you compared other engines? My TL installation is woefully
out-of-date, but with the versions I have on hand, I see similar
behavior in tex/pdftex/luatex.
<br>
</blockquote>
<p>No, I confess that I haven't, Jonathan — XeTeX is the only engine
I ever use, and has been for much of its existence. But David C.
has identified the feature as emanating from the "Kpath..."
library, so it will indeed be common to all TeX Live engines at
least, and perhaps others as well. David also reports that it is
possible to turn this undesirable feature off, something I shall
investigate shortly.</p>
<p>-- <br>
<i>** Phil.</i><br>
</p>
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