mysql Build the libmysqlclient libraries Add support for NDB clustering (deprecated) Enables the community features from upstream. Build embedded server (libmysqld) Add support for alternative storage engines (Archive, CSV, Blackhole, Federated(X), Partition) Use dev-libs/jemalloc for allocations. Use LATIN1 encoding instead of UTF8 Install client programs only, no server Add support for statement profiling (requires USE=community). Build the server program Build support for profiling and tracing using dev-util/systemtap Install upstream testsuites for end use. Add support for TokuDB storage engine Builds the TokuDB backup plugin Build the command line tools (mysql, mysqldump, mysqladmin, etc)