On a clean Stretch installation the shared libs should look like this: $ dpkg -S /usr/lib/x86_64-linux-gnu/libmysql* libmariadbclient-dev-compat:amd64: /usr/lib/x86_64-linux-gnu/libmysqlclient.so root@05fcb1ee5880:/build# dpkg -S /usr/lib/x86_64-linux-gnu/libmys* libmariadbclient-dev-compat:amd64: /usr/lib/x86_64-linux-gnu/libmysqlclient.so libmariadbclient-dev-compat:amd64: /usr/lib/x86_64-linux-gnu/libmysqlclient_r.so libmariadbd-dev:amd64: /usr/lib/x86_64-linux-gnu/libmysqld.a libmariadbd-dev:amd64: /usr/lib/x86_64-linux-gnu/libmysqld.so libmariadbd18:amd64: /usr/lib/x86_64-linux-gnu/libmysqld.so.18 libmariadbclient-dev: /usr/lib/x86_64-linux-gnu/libmysqlservices.a
$ dpkg -S /usr/lib/x86_64-linux-gnu/libmaria* libmariadbclient-dev: /usr/lib/x86_64-linux-gnu/libmariadbclient.a libmariadbclient-dev: /usr/lib/x86_64-linux-gnu/libmariadbclient.so libmariadbclient18:amd64: /usr/lib/x86_64-linux-gnu/libmariadbclient.so.18 libmariadbclient18:amd64: /usr/lib/x86_64-linux-gnu/libmariadbclient.so.18.0.0 libmariadbclient-dev: /usr/lib/x86_64-linux-gnu/libmariadbclient_r.a libmariadbclient-dev: /usr/lib/x86_64-linux-gnu/libmariadbclient_r.so libmariadbclient-dev: /usr/lib/x86_64-linux-gnu/libmariadbclient_r.so.18 libmariadbclient-dev: /usr/lib/x86_64-linux-gnu/libmariadbclient_r.so.18.0.0
