port variants & conflicts

[Bjarne D Mathiesen]

I've seen two different methods of describing variants

dovecot2:
variant mysql5 description {Enable MySQL 5.1 support} {
    conflicts mysql55 mariadb percona

    depends_lib-append          port:mysql5
    configure.env-append
MYSQL_CONFIG=${prefix}/lib/mysql5/bin/mysql_config
    configure.args-append       --with-mysql
}

postfix:
variant mysql5 conflicts mysql55 description "add mysql support via
mysql5.1" {
    depends_lib-append path:lib/mysql5/bin/mysql_config:mysql5
    lappend CCARGS  -DHAS_MYSQL "-I${prefix}/include/mysql5/mysql"
    lappend AUXLIBS "-L${prefix}/lib/mysql5/mysql" -lmysqlclient -lz -lm
}

which is the most correct one ???
-or-
which is the best one ???

-- 
Bjarne D Mathiesen
København N ; Danmark ; Europa
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