Hi Taco and all, A Mac user noticed that a texdoc directory was being created with group-write permission, even though their umask did not specify that (it was 022). $ umask 022 $ dir=~/.texlive2012/texmf-var/texdoc $ rm -rf $dir $ texdoc -l whatever .. $ ls -ld $dir drwxrwxr-x 2 karl root 4096 Sep 2 16:22 /u/karl/.texlive2012/texmf-var/texdoc/ ^ should be - Evidently the luafilesystem module was setting the umask to 002, and this was changed in 2009; see below. I'm not sure if these links are the actual upstream lua or some fork, though. Anyway, the question is, does the lua in luatex need to be updated? (If you want more context about all this, no problem, but I didn't think any of the rest mattered for luatex purposes.) Thanks, Karl Date: Mon, 27 Aug 2012 17:08:36 -0700 From: "Maxwell, Adam R" karl> In a subsequent message, there was a statement that group-writable was karl> the default in a lua library. I did not verify, but if true, that's karl> outside our control and not our place to override -- to get action, karl> report the bug to the appropriate developers. Just for completeness, this was fixed a few years ago in luafilesystem, as also noted in the debian.org bug report: https://github.com/keplerproject/luafilesystem/commit/fd028d32578fa0b7d5dfc8... http://www.mail-archive.com/kepler-project@lists.luaforge.net/msg00340.html https://github.com/keplerproject/luafilesystem/blob/master/src/lfs.c --adam