Add mySQL Database support

Packages describing “mysql” as local USE flag

Package“mysql” Flag Description
app-admin/rsyslogBuild the MySQL database output module (requires virtual/mysql)
app-misc/lcd4linuxEnable the mysql plugin, to get mysql database information.
app-mobilephone/gammuUse mysql for data storage
dev-perl/DBD-MariaDBUse dev-db/mysql-connector-c as the client library
dev-perl/DBD-mysqlUse dev-db/mysql-connector-c as the client library
mail-filter/pyzorEnables the MySQL back-end database engine for pyzord through dev-python/mysqlclient.
media-tv/kodiEnable support store of media library metadata on local or remote MySQL
net-analyzer/muninInstall the packages required for monitoring MySQL. Disabling the flag does not remove any plugin files.
net-im/ejabberdEnable MySQL support for data storage
net-irc/inspircdEnable MySQL database backend
net-misc/gerberaUse dev-db/mysql as backend rather than SQLite3
net-proxy/trojanbuild with MySQL support
net-voip/yateuse MySQL client library
www-apache/mod_musicindexAdd MySQL cache support

All packages providing a “mysql” USE flag (133)