Hi all, I’m not sure this is a Luatex or Context bug so please feel free to forward this to the appropriate ML if necessary. With the latest standalone (Luatex beta-0.74.0-2012122510, Context 2013.02.05 22:32) the font db builder fails at Adobe Heiti as distributed with acroread: [14:33:17=>phg@phlegethon=> ~/tmp/ctx/fontdb] mtxrun --script fonts --reload <... /> fonts | names | adding path from OSFONTDIR: /home/phg/.fonts fonts | names | globbing path /usr/share/fonts/**.otftexlua: ../../../source/texk/kpathsea/cnf.c:255: kpathsea_cnf_get: Assertion `kpse->program_name' failed. Aborted (core dumped) (Full log attached.) All fonts, even Adobe stuff, up until Heiti are processed without complaint. I traced the issue to a call to fontloader.open() in font-syn.lua, line 221. To reproduce it, run this code through texlua: #!/usr/bin/env texlua ff = fontloader.open[[/usr/share/fonts/adobe/AdobeHebrew_Regular.otf]] --> works print(ff) --> userdata ff = fontloader.open[[/usr/share/fonts/adobe/AdobeHeitiStd_Regular.otf]] --> fails print(ff) The problem disappears if I initialize kpathsea first: kpse.set_program_name"texlua" ... The problem does not occur with TeX Live 2012/Luatex 0.70/Context 2012.05.30 11:26. Can anyone else reproduce this? Thanks. Philipp