mariadb is installed but if I try to update it , emerge tries to install mysql
e -pu --tree mariadb
These are the packages that would be merged, in reverse order:
Calculating dependencies... done!
[nomerge ] dev-db/mariadb-10.2.14 [10.2.9] USE="client-libs%*"
[ebuild N ] virtual/mysql-5.6-r9 USE="server -embedded -static"
[ebuild N ] dev-db/mysql-5.6.39 USE="openssl perl server -debug -embedded -extraengine -jemalloc -latin1 -libressl -numa -profiling (-selinux) -static -static-libs -systemtap -tcmalloc {-test} -yassl"
[ebuild U ] dev-db/mariadb-10.2.14 [10.2.9] USE="client-libs%*"
[blocks B ] dev-db/mariadb ("dev-db/mariadb" is blocking dev-db/mysql-5.6.39)
[blocks B ] dev-db/mysql ("dev-db/mysql" is blocking dev-db/mariadb-10.2.14, dev-db/mariadb-10.2.9)