[tex-live] pdfsetmatrix error

[Norbert Preining]

Hi Joseph, hi TeX Live,

(please keep Cc)

here at Debian we got a bug report that a document stopped being
compilable with 2017. I can reproduce this with a MWE on current TL2017.

The MWE is:
\documentclass{article}
\usepackage{listings}
\usepackage{graphicx}
\newcommand{\foobar}[1]{\scalebox{-1}[1]{#1}}
\lstset{breaklines=true,prebreak=\foobar{A}}
\begin{document}
\begin{lstlisting}
some very very very very very very very very very very very very very very very very very very very long line
\end{lstlisting}
\end{document}

and the error is:
! pdfTeX error (\pdfsetmatrix): Unrecognized format..
<to be read again> 
                   \endgroup \set at typeset@protect 
l.10 \end{document}
                   
!  ==> Fatal error occurred, no output PDF file produced!


It seems that this was not a problem in TL2016 (tested by the submitter,
but not by me).

Any ideas?

All the best

Norbert

--
PREINING Norbert                               http://www.preining.info
Accelia Inc.     +    JAIST     +    TeX Live     +    Debian Developer
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