Stuff

 RDEPEND=">=dev-php/PEAR-DB
                dev-php/PEAR-Cache_Lite
                dev-php/PEAR-Mail_Mime"

pkg_setup() {
        webapp_pkg_setup

        local php_flags='curl ssl xml'

        use mysql && require_php_with_use mysql
        require_php_with_use ${php_flags}
}