Hi Oliver,
given just that fragment, I can only assume that something concerning
the etex package is different in your installation.
More precisely, there is a switch in pgfkeys.code.tex which defines
\pgfkeysifdefined in a different way depending on whether etex is
available or not. From what I know, it typically *is* available. Perhaps
it is not for your version.
I am referring to the instruction
\def\pgfkeys@ifcsname#1\endcsname#2\else#3\fi{\expandafter\ifx\csname#1\endcsname\relax#3\else#2\fi}%
\ifx\eTeXrevision\undefined%
\else%
\expandafter\let\expandafter\pgfkeys@ifcsname\csname ifcsname\endcsname%
\fi
In other words: you could write
\makeatletter
\show\pgfkeys@ifcsname
and/or
\ifx\eTeXrevision\undefined
\message{ETEX UNDEFINED}
\else
\message{ETEX DEFINED}
\fi
to see if something is different (this is purely diagnostic). Perhaps
you can make a difference by adding
\usepackage{etex} ?
Kind regards
Christian
Am 12.06.2013 10:21, schrieb Oliver Urbann:
> Hi all,
>
> I'm trying to port texlive to a rare OS called MorphOS. At the moment
> most important things are working. I can compile all for me important
> documents. But I have a problem with pgfplots. When I try to compile the
> example using "pdftex --progname=pdflatex pgfplotsexample.tex" I get the
> following error:
>
> ! Extra \else.
> \pgfkeysifdefined ...me pgfk@#1\endcsname #2\else
> #3\fi
> l.13 ^^I^^I\addplot
> coordinates {
> ?
> ! Emergency stop.
>
> I would not say it is a bug in pgfplots. But maybe some one knows what
> is wrong with my tex setup?
>
> Best regards,
> Oliver
>
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