bash-3.1#  make show=FLAVORS
===> mail/postfix/stable
sasl2 ldap mysql pgsql
===> mail/postfix/stable,ldap
sasl2 ldap mysql pgsql
===> mail/postfix/stable,mysql
sasl2 ldap mysql pgsql
===> mail/postfix/stable,sasl2
sasl2 ldap mysql pgsql
===> mail/postfix/snapshot
sasl2 ldap mysql pgsql
===> mail/postfix/snapshot,ldap
sasl2 ldap mysql pgsql
===> mail/postfix/snapshot,mysql
sasl2 ldap mysql pgsql
===> mail/postfix/snapshot,sasl2
sasl2 ldap mysql pgsql