USESETEUID
# define USESETEUID 1 /* has seteuid(2) call */
# define USESETEUID 0 /* has it due to POSIX, but doesn't work */
# define USESETEUID 1 /* has usable seteuid(2) call */
# define USESETEUID 1 /* seteuid(2) works */
# define USESETEUID 1 /* has usable seteuid(2) call */
# define USESETEUID 1 /* has usable seteuid(2) call */
# undef USESETEUID
# define USESETEUID 0 /* assume no seteuid(2) call or no saved ids */
# define USESETEUID 1 /* seteuid works as of 2.3 */
# define USESETEUID 1 /* has usable seteuid(2) call */
# define USESETEUID 1 /* has seteuid(2) */
# define USESETEUID 1 /* has usable seteuid(2) call */
# define USESETEUID 1 /* has usable seteuid(2) call */
# define USESETEUID 1 /* has usable seteuid(2) call */
# define USESETEUID 1 /* has usable seteuid(2) call */
# define USESETEUID 1 /* has usable seteuid(2) call */
# define USESETEUID 1 /* has usable seteuid(2) call */