AC_PATH_PROG([KEXEC], [kexec], [/usr/sbin/kexec], [$PATH:/usr/sbin:/sbin])
+AC_PATH_PROG([SULOGIN], [sulogin], [/usr/sbin/sulogin], [$PATH:/usr/sbin:/sbin])
+
AS_IF([! ln --relative --help > /dev/null 2>&1], [AC_MSG_ERROR([*** ln doesn't support --relative ***])])
M4_DEFINES=