net-fs/netatalk-3.1.10 has automagic dependency on dev-db/mysql
Confirmed (though it seems to like mariadb too) - this is from 3.1.10: X86_64;/usr/lib64/libatalk.so.18.0.0;libatalk.so.18;;libldap-2.4.so.2,libtdb.so.1,libmariadb.so.3,libpthread.so.0,libwrap.so.0,libacl.so.1,libattr.so.1,libc.so.6;x86_64
also (from 3.1.11 this time): checking MySQL library and headers... checking for mysql_config... /usr/bin/mysql_config /usr/bin/mysql_config
I think that's no longer the case with 3.1.18 (default USE flags): $ lddtree $(which netatalk) netatalk => /usr/bin/netatalk (interpreter => /lib64/ld-linux-x86-64.so.2) libatalk.so.0 => /usr/lib64/libatalk.so.0 libtdb.so.1 => /usr/lib64/libtdb.so.1 libbsd.so.0 => /usr/lib64/libbsd.so.0 libmd.so.0 => /usr/lib64/libmd.so.0 libacl.so.1 => /usr/lib64/libacl.so.1 libattr.so.1 => /usr/lib64/libattr.so.1 libevent-2.1.so.7 => /usr/lib64/libevent-2.1.so.7 libc.so.6 => /usr/lib64/libc.so.6 ld-linux-x86-64.so.2 => /lib64/ld-linux-x86-64.so.2