Hi, my best guess for the implementation location of __acl_set_file() is sys___acl_set_file() in https://svnweb.freebsd.org/base/head/sys/kern/vfs_acl.c?revision=284446&view=markup
(I don't understand how https://svnweb.freebsd.org/base/head/sys/kern/syscalls.master?revision=285388&view=markup makes the connection between both names.) So the next question is: Does the kfreebsd kernel have this implementation, too. (I would expect so.) Have a nice day :) Thomas

