Help setting dbconfig-common for MariaDB, not MySQL

[Alessandro Vesely <vesely@tana.it>]

Hi,

please pardon my ignorance about Debian install.  I'm distributing a software 
which could use various DBMS'es by setting a number of parameters.  Example 
parameters are only given for MariaDB.  I distribute a debian/ directory that 
Debian users can use to prepare a package instead of configure, make, make 
install.  However, the debian/postinst supports MariaDB only.

A user complained that MySQL doesn't work, because it misses the INET6 type 
that the example settings use.  Now I've added "mariadb-client | mariadb-server 
| dbconfig-no-thanks" to the Debian clause in debian/control.  I'm not clear 
how I could add an (optional) Conflicts mysql-something, also because I see no 
mysql-server in the package cache.

Is there a way to fail if a user chooses to install the DB but MariaDB is 
missing?  Or is the above enough?


Thanks in advance for any hint
Ale
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