Incidentally, for reference, I solved this problem.

I installed tetex into /home/wiki/local/teTex/, and leaving the binaries there, and hard-referencing the locations of 'dvips' and 'latex' in the first two lines of mediawiki/math/render.ml, ala.

-- excerpt, math/render.ml{0,2} -- let cmd_dvips tmpprefix = "/home/wiki/local/teTeX/bin/dvips -R -E " ^ tmpprefix ^ ".dvi -f >" ^ tmpprefix ^ ".ps" let cmd_latex tmpprefix = "/home/wiki/local/teTeX/bin/latex " ^ tmpprefix ^ ".tex >/dev/null" -- excerpt, math/render.ml{0,2} --

I imagine tetex must be able to find it's configuration files when called from its own directory, as opposed to a general /bin directory (i.e. /home/wiki/bin).

Cheers, Brian

On 3-Oct-06, at 7:19 PM, Bri wrote:

I am getting an error in my installation of mediawiki, on a Linux box:

"Failed to parse (PNG conversion failed; check for correct installation of latex, dvips, gs, and convert): \sqrt{1-e^2}"

However, I logged the command, and run it from the command-line:

./math/texvc '/home/wiki/public_html/MediaWiki/images/tmp' '/home/ wiki/public_html/MediaWiki/images/tmp' '\sqrt{1-e^2}' 'utf-8'

And it works fine, creating the temporary file, fine. There are tons of temporary files in the images/tmp directory, so it's not a(n) (obvious) permissions problem.

When I create a php script:

--- begin script --- $cmd = "./math/texvc '/home/sovereig/public_html/MediaWiki/images/ tmp' '/home/sovereig/public_html/MediaWiki/images/tmp' '\sqrt{1-e^2}' 'utf-8'"; $ret = system($cmd . " 2>&1"); $ret = substr($ret, 1, strlen($ret)-2); print "<img src='images/tmp/$ret.png'>"; --- end script ---

I capture the following output from the command:

-- begin output -- kpathsea: Running mktexfmt latex.fmt fmtutil: format directory `/.texmf-var/web2c' does not exist. -- end output -- (Note: /.texmf-var/web2c does not exist; ~/.texmf-var/web2c *does* ... how do I change that?)

It will come up with the same .png file-name that the command line created, but it won't create it.

Does anyone have any suggestions as to why this might be happening and how to fix it?

Incidentally, I installed tetex with ./configure --prefix=/home/wiki/ local --datadir=/home/wiki/local .

As well, as a result of using this non-standard path, I added the following into my LocalSettings.php: putenv('PATH=/home/wiki/local/bin'. PATH_SEPARATOR . getenv ('PATH'));

I'd appreciate any help anyone can provide.

Thank you, Brian _______________________________________________ MediaWiki-l mailing list MediaWiki-l@Wikimedia.org http://mail.wikipedia.org/mailman/listinfo/mediawiki-l