# uname -a
Linux base 4.0.5-gentoo #1 SMP Wed Jul 1 02:23:16 JST 2015 x86_64 Intel(R) Xeon(R) CPU E5-2640 0 @ 2.50GHz GenuineIntel GNU/Linux
# emerge -pvq openldap openssh sssd sudo
[ebuild R ] net-nds/openldap-2.4.38-r2 USE="berkdb crypt gnutls ipv6 minimal sasl ssl syslog tcpd -cxx -debug -experimental -icu -iodbc -kerberos -odbc -overlays -perl -samba (-selinux) -slp -smbkrb5passwd" ABI_X86="(64) -32 (-x32)"