The value of this variable is a symbol indicating the type of operating
system Emacs is operating on. Here is a table of the possible values:
-@table @code
-@item alpha-vms
-VMS on the Alpha.
-
@item aix-v3
AIX.
@item usg-unix-v
AT&T System V.
-@item vax-vms
-VAX VMS.
-
@item windows-nt
Microsoft windows NT. The same executable supports Windows 9X, but the
value of @code{system-type} is @code{windows-nt} in either case.
The value is @code{nil} if Emacs is running under a window system.
@end defvar
-@defun setprv privilege-name &optional setp getprv
-This function sets or resets a VMS privilege. (It does not exist on
-other systems.) The first argument is the privilege name, as a string.
-The second argument, @var{setp}, is @code{t} or @code{nil}, indicating
-whether the privilege is to be turned on or off. Its default is
-@code{nil}. The function returns @code{t} if successful, @code{nil}
-otherwise.
-
-If the third argument, @var{getprv}, is non-@code{nil}, @code{setprv}
-does not change the privilege, but returns @code{t} or @code{nil}
-indicating whether the privilege is currently enabled.
-@end defun
-
@node User Identification
@section User Identification
@cindex user identification