[OS X TeX] Coexisting TeX distributions and TeXShop .engine files
jonathan_kew at sil.org
Mon Jan 29 04:57:17 EST 2007
On 29 Jan 2007, at 8:50 am, Malcolm Ross wrote:
> I have two coexisting TeX distributions on my PowerBook G4. The TeX
> Distributions preference pane shows them as gwTeX-2003-2005 and
> TeXLive-2007, and the pane is switched to TeXLive-2007. When I run
> LaTeX, the log shows that TeXLive-2007 is used, but when I run
> XeLaTeX, the log shows that teTeX (i.e. gwTeX) is used instead. I
> had expected TeXLive to be used in both cases, and I am struggling
> to understand why teTeX is used with XeLaTeX. Xe(La)TeX is present
> in both distributions.
> The XeLaTeX.engine file reads:
> set path= ($path /usr/texbin /usr/local/bin)
> xelatex "$1"
> I was under the impression that '/usr/texbin' should cause TeXShop
> to use the distribution selected in the preference pane.
Note that this script *appends* /usr/texbin and /usr/local/bin to
your existing $path. This means that if tcsh already has a $path
element where xelatex exists, that will still be used.
The behavior with (pdf)latex is different because this doesn't use a
separate .engine file running in a shell; TeXShop is calling pdftex
directly using the full path from its preferences.
> It seems I am wrong. Can anyone enlighten me as to why this might
> be happening and how I can fix things so that TeXLive-2007 is
> chosen in all cases?
My guess is that you have a ~/.tcshrc or ~/.cshrc or /etc/csh.cshrc
or something that is putting the old gwTeX binary directory into the
path. Try running tcsh in Terminal (note that Terminal windows may
well be running bash by default, which uses separate settings), and
see what path it reports:
Last login: Sat Jan 27 14:38:19 on ttyp2
Welcome to Darwin!
Kew-PBG4:~ jonathan$ /bin/tcsh
[Kew-PBG4:~] jonathan% echo $path
/bin /sbin /usr/bin /usr/sbin /usr/local/bin /usr/local/mysql/bin
[Kew-PBG4:~] jonathan% exit
One fix would be to change the engine file so that /usr/texbin is
*prefixed* to the existing path, so it'll take precedence over
anything that's already there:
> set path= (/usr/texbin $path /usr/local/bin)
The other (better) solution is to track down the out-of-date
initialization file that is putting the old directory in the path,
and change it to use the new /usr/texbin convention instead.
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