[XeTeX] xelatex and geometry
Jonathan Kew
jonathan_kew at sil.org
Wed Mar 26 19:29:04 CET 2008
On 26 Mar 2008, at 6:04 pm, Manuel Pégourié-Gonnard wrote:
> Hum, my question is certainly stupid, but I can't help wondering:
> if the file
> is in /tex/xelatex, when it is found we already know that we are
> running
> XeTeX, aren't we? So, why the \@ifundefined{XeTeXversion}?
Files under $TEXMF/tex/xelatex may be found by other engines as well,
so they should take precautions. In most cases, one of the last
options in the path is $TEXMF/tex//, which searches everything under
the /tex/ directory. The more format-specific directories within that
are used to give preference to different subtrees when using
different formats, but it would be risky (at best) to assume they'll
never be found by "foreign" formats.
So if there's a geometry.cfg somewhere under $TEXMF/tex/latex, for
example, that will be used by latex; but if the only one in the
entire tree is the xelatex version, everyone will use that.
JK
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