Hello finally I could "compile" texvc on a Mac 10.4. (Actually I compiled in on a intel machine running Mac 10.4 and then copied the math directory to the powerpc machine; god know why the compilation in both machines is different) However there is still a problem left, I can use ./texvc '/var/www/wiki/images/tmp' '/var/www/wiki/images/math' '\int_{-N}^{N} e^x\, dx' 'utf-8' And then the corresponding png is produced in the correct place, however when I add math structure to any wiki page instead of getting displayed correctly I obtain Failed to parse (PNG conversion failed; check for correct installation of latex, dvips, gs, and convert): \int_{-N}^{N} e^x\, dx Which puzzles me completely. Thanks and regards