> it was renamed to be .so.19 to mark an incompatible version. Be warned your service might explode
Are you sure?
zypper info --provides libmariadb-devel
shows:
libmysqlclient_r18 = 10.2.10
Doesn't "r_18" suggest that it is version 18 (not 19 as you say)?
How can this be checked?