On Fri, Jun 18, 2004 at 10:22:50PM +0200, Viktor Rosenfeld wrote:

Hi,

I'm trying to get math input working in my own wiki. Unfortunately something is messed up with my texvc-installation. I know that latex, dvips, gs and convert are in my apache path. Instead, I think texvc isn't really working here. When I do:

# mkdir tmp out # echo | ./texvc tmp out 'x \not\in \Sigma' iso-8859-1 +5e6c5975facb1fd4f0895accca92d451-

I found the file tmp/8435_5e6c5975facb1fd4f0895accca92d451.tex in my tmp directory. Poking around with strace -f it appears, that latex cannot find the temporary texfile and consequently texvc gives up. Here's the relevant bits:

[pid 8446] access("./tmp/8444_bc30a6e8e7394384dc79e75a32f251f3.tex", R_OK) = -1 ENOENT (No such file or directory)

in the thread that executes latex. I double checked, the file does exist. [1]

The error message I get is: Parser-Fehler (PNG conversion failed; check for correct installation of latex, dvips, gs, and convert).

I'm really stuck here.

Try absolute paths. Because latex is extremely stupid and tries to create files in *current* directory, texvc has to switch current directory to tmp and then switch back. It seems to be passing full path to latex after that, what works with absolute paths but doesn't with relative ones (that's probably bug in texvc, it should pass filename without dirname to latex and filenames with dirname to everything else)

access() returns ENOENT because at the moment it's executed process is in tmp directory, and it doesn't contain another tmp/ as a subdir.