ada.directories.full_name and circular symlinks
If foo is a symlink targeting "foo", GNAT's implementation of
Ada.Directories.Full_Name ("foo") returns "".
System.OS_Lib.Normalize_Pathname body ends with:
-- Too many iterations: give up
-- This can happen when there is a circularity in the symbolic links: A
-- is a symbolic link for B, which itself is a symbolic link, and the
-- target of B or of another symbolic link target of B is A. In this
-- case, we return an empty string to indicate failure to resolve.
This seems to be an error according to RM-A-16 72/2.
Do I miss something, or is it a bug?