[XeTeX] supplying missing glyphs?

[Adam McCollum]

Dear list members,

I like the Hoefler Text font very much, but I see that it apparently  
doesn't have glyphs for a number of letters with diacritics, which I  
sometimes need for transliteration; please see the example text below.  
I've tried both unicode entry and the TeX way for entering these. Is  
there any way at all to "fake" these glyphs or otherwise supply them?  
Any and all suggestions welcome!

With thanks in advance,

Adam McCollum, Ph.D.
Lead Cataloger, Eastern Christian Manuscripts
Hill Museum & Manuscript Library
Saint John's University
P.O. Box 7300
Collegeville, MN  56321

(320) 363-2075 (phone)
(320) 363-3222 (fax)
www.hmml.org



Minimal example:

\documentclass{article}

\usepackage{xltxtra, polyglossia}

\defaultfontfeatures{Scale=MatchLowercase}

\setromanfont{Hoefler Text}

\begin{document}

\title{Test for Hoefler Text with Diacritical Marks}
\author{Yours truly}
\maketitle

ā å ḇ ḍ ē ǵ ḡ ğ ġ ǧ ḥ ḫ ħ ḳ ł ƚ ō ŏ œ ṛ š  
ṣ ṭ ṯ ẓ Š Ḥ

\d h

\end{document}
-------------- next part --------------
A non-text attachment was scrubbed...
Name: hoefler_diacritics.pdf
Type: application/pdf
Size: 13182 bytes
Desc: not available
URL: <http://tug.org/pipermail/xetex/attachments/20101202/bf31a2b5/attachment.pdf>
-------------- next part --------------