2

All my LaTeX documents stopped compiling with XeLaTeX from TeX Live 2015 sometime in the last two months. It was working before. Here is a minimum working example:

\documentclass[11pt]{scrartcl}

\usepackage{libertine}
\usepackage[libertine]{newtxmath}

% \DeclareSymbolFont{operators}{\encodingdefault}{\familydefault}{m}{n}

\begin{document}
\end{document}

Trying to compile like this: xelatex -interaction nonstopmode bug, gives me the following error:

(/opt/texlive/2015/texmf-dist/tex/generic/kastrup/binhex.tex)
\tx@Isdigit=\count137
)
! Incomplete \iftrue; all text was ignored after line 128.
<inserted text> 
                \fi 
l.5 

The file ended while I was skipping conditional text.
This kind of error happens when you say `\if...' and forget
the matching `\fi'. I've inserted a `\fi'; this might work.

)
! Incomplete \iftrue; all text was ignored after line 128.
<inserted text> 
                \fi 
<*> bug

The file ended while I was skipping conditional text.
This kind of error happens when you say `\if...' and forget
the matching `\fi'. I've inserted a `\fi'; this might work.

! Emergency stop.
<*> bug

*** (job aborted, no legal \end found)

What is going wrong? I have tried the suggestion in this answer with no luck.

3

This is a bug in newtxmath. If contains in line 130 (and line 135) in an \else-branch

\ifx\iflibertine@otf\undefined

and this leads to an incomplete if if the branch is not executed.

A similar problem can be demonstrated with this example:

\documentclass[11pt]{article}

\begin{document}
\newif\ifblab
\iftrue
abc
\else
  \ifx
    \ifblab\undefined
    abc
  \fi
\fi

\end{document}

TeX is trying to find the end of the \else part to throw it away and due to the \ifblab one \fi is missing.

  • Thanks for digging through the source. I'm guessing there is no workaround? How can I report this bug? texdoc newtx didn't tell me much. – suvayu Dec 11 '15 at 21:05
  • @suvayu The mail address is in the sty. – Ulrike Fischer Dec 11 '15 at 21:11

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