set-file-acl

set-file-acl is a built-in function in `C source code'.

(set-file-acl FILENAME ACL-STRING)

Set ACL of file named FILENAME to ACL-STRING.
ACL-STRING should contain the textual representation of the ACL
entries in a format suitable for the platform.

Value is t if setting of ACL was successful, nil otherwise.

Setting ACL for local files requires Emacs to be built with ACL
support.