dev-lang/perl

curl?
      ( dev-libs/uriparser net-misc/curl )

ldap?
      ( net-nds/openldap:= )

mysql?
      ( ||
            ( dev-db/mysql-connector-c dev-db/mariadb-connector-c )
       )

postgres?
      ( dev-db/postgresql:= )

ssl?
      ( !gnutls?
            ( dev-libs/openssl:0= )
       gnutls?
            ( net-libs/gnutls )
       )

radius?
      ( net-dialup/freeradius-client )

dns?
      ( net-dns/bind-tools )

game?
      ( games-util/qstat )

fping?
      ( net-analyzer/fping )

samba?
      ( net-fs/samba )

ssh?
      ( virtual/openssh )

snmp?
      ( dev-perl/Net-SNMP net-analyzer/net-snmp[-minimal] )

acct-group/nagios
acct-user/nagios
!net-analyzer/nagios-plugins