with the enabling of utmpx in busybox and uClibc it was noted that shadow
support for utmpx also needs utmp explicitly enabled in uclibc. this is
a workaround that might be removed once shadow properly supports
--enable-utmpx to check for utmpx configuration instead of utmp like
it does now
[YOCTO #8243]
Signed-off-by: Bogdan-Alexandru Voiculescu <bogdanx.a.voiculescu@intel.com> Signed-off-by: Benjamin Esquivel <benjamin.esquivel@linux.intel.com> Signed-off-by: Ross Burton <ross.burton@intel.com>