[XeTeX] Problem with footnotes and xltxtra

[Marc van Dongen]

Dear all,

I've just updated TeXLive 2010 (using tlmgr update --all) and this broke
footnotes. Basically xelatex freezes when processing footnotes. When I
remove the footnote it's freeze at the next footnote. The following
minimal example makes xelatex freeze at the footnote and I have to
interrupt the program.

\documentclass{minimal}
\listfiles
\usepackage[no-sscript]{xltxtra}
\begin{document}
   Hello\footnote{freezing} world.
\end{document}

The following is the output I get (it also shows the interrupt).
This is XeTeX, Version 3.1415926-2.2-0.9997.4 (TeX Live 2010)
 restricted \write18 enabled.
entering extended mode
(./tmp.tex
LaTeX2e <2009/09/24>
Babel <v3.8l> and hyphenation patterns for english, dumylang,
nohyphenation, german-x-2009-06-19, ngerman-x-2009-06-19, afrikaans, ancientgreek,
ibycus, armenian, basque, bulgarian, catalan, pinyin, coptic, croatian, czech,
danish, dutch, esperanto, estonian, finnish, french, galician, german, ngerman,
swissgerman, monogreek, greek, hungarian, icelandic, assamese, bengali, gujarati,
hindi, kannada, malayalam, marathi, oriya, panjabi, tamil, telugu, indonesian,
interlingua, irish, italian, kurmanji, lao, latin, mongolian, mongolianlmc,
bokmal, nynorsk, polish, portuguese, romanian, russian, sanskrit, serbian, slovak,
slovenian, spanish, swedish, turkish, ukrainian, uppersorbian, welsh,
loaded.
(/usr/local/texlive/2010/texmf-dist/tex/latex/base/minimal.cls
Document Class: minimal 2001/05/25 Standard LaTeX minimal class
) (/usr/local/texlive/2010/texmf-dist/tex/latex/xltxtra/xltxtra.sty
(/usr/local/texlive/2010/texmf-dist/tex/generic/oberdiek/ifluatex.sty)
(/usr/local/texlive/2010/texmf-dist/tex/generic/ifxetex/ifxetex.sty)
(/usr/local/texlive/2010/texmf-dist/tex/latex/fontspec/fontspec.sty
(/usr/local/texlive/2010/texmf-dist/tex/latex/expl3/expl3.sty
(/usr/local/texlive/2010/texmf-dist/tex/latex/expl3/l3names.sty)
(/usr/local/texlive/2010/texmf-dist/tex/latex/etex-pkg/etex.sty)
(/usr/local/texlive/2010/texmf-dist/tex/latex/expl3/l3basics.sty)
(/usr/local/texlive/2010/texmf-dist/tex/latex/expl3/l3expan.sty)
(/usr/local/texlive/2010/texmf-dist/tex/latex/expl3/l3tl.sty)
(/usr/local/texlive/2010/texmf-dist/tex/latex/expl3/l3intexpr.sty)
(/usr/local/texlive/2010/texmf-dist/tex/latex/expl3/l3quark.sty)
(/usr/local/texlive/2010/texmf-dist/tex/latex/expl3/l3seq.sty)
(/usr/local/texlive/2010/texmf-dist/tex/latex/expl3/l3toks.sty)
(/usr/local/texlive/2010/texmf-dist/tex/latex/expl3/l3int.sty)
(/usr/local/texlive/2010/texmf-dist/tex/latex/expl3/l3prg.sty)
(/usr/local/texlive/2010/texmf-dist/tex/latex/expl3/l3clist.sty)
(/usr/local/texlive/2010/texmf-dist/tex/latex/expl3/l3token.sty)
(/usr/local/texlive/2010/texmf-dist/tex/latex/expl3/l3prop.sty)
(/usr/local/texlive/2010/texmf-dist/tex/latex/expl3/l3msg.sty)
(/usr/local/texlive/2010/texmf-dist/tex/latex/expl3/l3io.sty)
(/usr/local/texlive/2010/texmf-dist/tex/latex/expl3/l3skip.sty)
(/usr/local/texlive/2010/texmf-dist/tex/latex/expl3/l3box.sty)
(/usr/local/texlive/2010/texmf-dist/tex/latex/expl3/l3keyval.sty)
(/usr/local/texlive/2010/texmf-dist/tex/latex/expl3/l3keys.sty)
(/usr/local/texlive/2010/texmf-dist/tex/latex/expl3/l3precom.sty)
(/usr/local/texlive/2010/texmf-dist/tex/latex/expl3/l3xref.sty)
(/usr/local/texlive/2010/texmf-dist/tex/latex/expl3/l3file.sty)
(/usr/local/texlive/2010/texmf-dist/tex/latex/expl3/l3fp.sty)
(/usr/local/texlive/2010/texmf-dist/tex/latex/expl3/l3luatex.sty)
(/usr/local/texlive/2010/texmf-dist/tex/latex/tools/calc.sty))
(/usr/local/texlive/2010/texmf-dist/tex/latex/xpackages/xbase/xparse.sty)
(/usr/local/texlive/2010/texmf-dist/tex/generic/kastrup/binhex.tex)
(/usr/local/texlive/2010/texmf-dist/tex/latex/xkeyval/xkeyval.sty
(/usr/local/texlive/2010/texmf-dist/tex/generic/xkeyval/xkeyval.tex
(/usr/local/texlive/2010/texmf-dist/tex/generic/xkeyval/keyval.tex)))
(/usr/local/texlive/2010/texmf-dist/tex/latex/fontspec/fontspec-patches.sty
(/usr/local/texlive/2010/texmf-dist/tex/latex/base/fixltx2e.sty))
(/usr/local/texlive/2010/texmf-dist/tex/latex/base/fontenc.sty
(/usr/local/texlive/2010/texmf-dist/tex/latex/euenc/eu1enc.def)
(/usr/local/texlive/2010/texmf-dist/tex/latex/euenc/eu1lmr.fd))
(/usr/local/texlive/2010/texmf-dist/tex/xelatex/xunicode/xunicode.sty)
(/usr/local/texlive/2010/texmf-dist/tex/latex/fontspec/fontspec.cfg))
(/usr/local/texlive/2010/texmf-dist/tex/latex/realscripts/realscripts.sty
 LaTeX Warning: Redefining document command \textsubscript
(LaTeX)  with arg. spec. 's' on line 32.
 LaTeX Warning: Redefining document command \textsuperscript
(LaTeX)  with arg. spec. 's' on line 35.
) (/usr/local/texlive/2010/texmf-dist/tex/latex/metalogo/metalogo.sty
(/usr/local/texlive/2010/texmf-dist/tex/latex/graphics/graphicx.sty
(/usr/local/texlive/2010/texmf-dist/tex/latex/graphics/graphics.sty
(/usr/local/texlive/2010/texmf-dist/tex/latex/graphics/trig.sty)
(/usr/local/texlive/2010/texmf-dist/tex/latex/latexconfig/graphics.cfg)
(/usr/local/texlive/2010/texmf-dist/tex/xelatex/xetex-def/xetex.def)))))
(./tmp.aux)^C
! Interruption.
<to be read again>
                   {
l.5    Hello\footnote{
                      freezing} world.
? x
No pages of output.
Transcript written on tmp.log.
shell returned 1

If I remove the no-sscript option from the usepackage I get the
following (this time there's no need for an interrupt):

! Undefined control sequence.
\@footnotetext ...tins {\reset at font \footnotesize
                                                  \interlinepenalty
\interfo...
l.5    Hello\footnote{freezing}
                                world.
Any help much appreciated.

Regards,
Marc van Dongen