* autoload.cc (CreateSymbolicLink): Define.

* environ.cc (set_winsymlinks): Set allow_winsymlinks.
	(parse_thing): Change "winsymlinks" to set by function.
	* globals.cc (enum winsym_t): Define.
	(allow_winsymlinks): Define as winsym_t.
	(ro_u_afs): New R/O Unicode string.
	* mount.cc (fs_info::update): Fix comment.  Handle AFS.
	(fs_names): Add "afs".
	* mount.h (enum fs_info_type): Add afs.
	(class fs_info): Implement afs.
	* path.cc (symlink): Drop third parameter in call to symlink_worker.
	(symlink_nfs): New function.
	(symlink_native): New function.
	(symlink_worker): Drop third argument.  Handle native symlink type by
	calling symlink_native.  Move code to handle NFS to symlink_nfs.  Fix
	formatting.  Slightly restructure code.
	* path.h (class path_conv): Add fs_is_afs method.
	(symlink_worker): Declare here.
	* security.h: Define privilege constants as unsigned int instead of as
	unsigned long.
	* syscalls.cc (mknod_worker): Set third parameter in symlink_worker
	call to WSYM_lnk.
	* winsup.h (symlink_worker): Drop declaration here.

winsup/cygwin/mount.h

@@ -44,6 +44,7 @@ enum fs_info_type
   cifs,
   nwfs,
   ncfsd,
+  afs,
   /* Always last. */
   max_fs_type
 };
@@ -114,6 +115,7 @@ class fs_info
   IMPLEMENT_FS_FLAG (cifs)
   IMPLEMENT_FS_FLAG (nwfs)
   IMPLEMENT_FS_FLAG (ncfsd)
+  IMPLEMENT_FS_FLAG (afs)
   fs_info_type what_fs () const { return status.fs_type; }
   bool got_fs () const { return status.fs_type != none; }