databases/mysql55-server/Makefile:.error You have `USE_MYSQL' variable defined either in environment or in make(1) arguments. Please undefine and try again.
databases/percona56-server/Makefile:.error You have `USE_MYSQL' variable defined either in environment or in make(1) arguments. Please undefine and try again.
databases/mysql57-server/Makefile:.error You have `USE_MYSQL' variable defined either in environment or in make(1) arguments. Please undefine and try again.
databases/mariadb101-server/Makefile:.error You have `USE_MYSQL' variable defined either in environment or in make(1) arguments. This leads to a circular dependency. Please undefine and try again.
databases/percona55-server/Makefile:.error You have `USE_MYSQL' variable defined either in environment or in make(1) arguments. Please undefine and try again.
databases/mariadb100-server/Makefile:.error You have `USE_MYSQL' variable defined either in environment or in make(1) arguments. This leads to a circular dependency. Please undefine and try again.
databases/mysql56-server/Makefile:.error You have `USE_MYSQL' variable defined either in environment or in make(1) arguments. Please undefine and try again.
databases/mariadb55-server/Makefile:.error You have 'USE_MYSQL' variable defined either in environment or in make(1) arguments. Please undefine and try again.