[OS X TeX] Syncing in one direction only
schremmer.alain at gmail.com
Fri Jan 7 00:52:26 CET 2011
On Jan 6, 2011, at 5:51 PM, Don Green Dragon wrote:
> No, I did not so understand. On the other hand, I had no intention
> of modifying <texmf.cnf> until I knew more about the situation. I
> have to find that message from Bruno Voisin that Alain Schremmer
> referred to.
Look at the thread Error: I can't write on file '(name)'
March 22, 2007
Here is, I think, what Voisin said to do and what I did.
Le 22 mars 07 à 12:45, Jonathan Kew a écrit :
> Find the line
> openout_any = p
> in there; change to
> openout_any = r
> and I think you'll be OK. ("a" would be even more permissive than
> "r", but I don't think you need that.)
Thanks for this tip, that's helpful. I knew about the -R option (=
secure mode) of dvips, and about the -shell-escape and -no-shell-
escape options of pdftex, but I didn't suspect there was this switch
in addition for pdftex in texmf.cnf.
Regarding texmf.cnf, the gwTeX and MacTeX/TeXLive setups are a bit
different. With MacTeX/TeXLive, there is one single texmf.cnf at:
which is the file to edit. With gwTeX, there are two different
The second file is the TeXLive default, and the first file is where
local modifications are kept. The two are read in sequence, with any
definition in the first superseding definitions read later in the
Hence, for MacTeX/TeXLive simply *edit* the unique /usr/local/texlive/
2007/texmf/web2c/texmf.cnf as said above, while for gwTeX you need to
openout_any = r
Finally, to Alain, regarding the editor, in case you don't have
TextWrangler you can simply use pico. pico is a stand-alone version
of the text editor of the pine mail reader, and it's "intuitive"-
enough to use (on second thought, I think pico in OS X points
actually to nano, a GNU clone of pico -- those physicists, they just
couldn't resist ;-).
Simply type in Terminal, using MacTeX as an example:
sudo pico /usr/local/texlive/2007/texmf/web2c/texmf.cnf
then use Ctrl-V to move down screen-by-screen until you reach the
desired part (you can also use the DownArrow key to move down line-by-
% Allow TeX \openin, \openout, or \input on filenames starting with `.'
% (e.g., .rhosts) or outside the current tree (e.g., /etc/passwd)?
% a (any) : any file can be opened.
% r (restricted) : disallow opening "dotfiles".
% p (paranoid) : as 'r' and disallow going to parent directories, and
% restrict absolute paths to be under $TEXMFOUTPUT.
openout_any = p
openin_any = a
then modify the openout_any setting as required, and then type in
Ctrl-O to save and Ctrl-X to quit.
The bad thing is that texmf.cnf will be overwritten each time TeX is
updated, so that you'll have to redo your modification each time.
Actually it's simpler with gwTeX, as installed by i-Installer: at
each update, I think, i-Installer detects the local /usr/local/gwTeX/
texmf.cnf has been changed and offers to save a copy on your Desktop
(with the date appended at the end of the name) before performing the
update. Then you'll simply have to merge back your modifications
after the update.
Hope this helps,
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