Bug#702280: Add alternative (build-)dependency: libmariadbclient-dev

[gregor herrmann]

On Tue, 01 Apr 2014 15:37:09 +0300, Otto Kekäläinen wrote:

> > I might be missing something, but this still seems impossible. In
> > order to build both flavours, we'd need to build-depend on both
> > libmariadbclient-dev and libmysqlclient-dev, but libmariadbclient-dev
> > still seems to have a "Breaks: libmysqlclient-dev" which makes the
> > two packages not co-installable.
> Yes, your right, it isn't possible. Actually what would be needed is
> to have two separate source packages which are almost identical,
> except for the client library soname. Would you by any chance feel
> like you would like to maintain an extra libdbd-mariadb-perl package?

This doesn't sounds very attractive, for various reasons, as others
have pointed out already.

And I think it doesn't scale for Debian as a whole; DBD::mysql is
just one of the reverse build dependencies:

% reverse-depends -b libmysqlclient-dev|grep -c \*
125

Are there experiences with the other 124 packages or plans for them?
Duplicating all of them is probably not the best way forward.


I don't know enough about MySQL and MariaDB and I don't pretend to
have a solution; but from my naïve point of view either of (1)
picking on them, or (2) making them coexist in peace would sound
better than the current situation, as far as I understand it.
 
> > (Besides that we'd have to think if we want to name the binary
> > package libdbd-mariadb-perl and/or if we want to make some more
> > changes to it and/or if it should Conflict/Break libdbd-mysql-perl
> > etc. But that's for later ...)
> Both packages should probably co-exist for a long time. They should
> probably break/replace each other. The filenames are the same inside
> the -perl package, so they cannot be co-installable. The libs
> libmysqlclient18 and libmariadbclient18 are co-installable, as the
> filenames are different, but at the moment the equivalent -dev
> packages conflict, as those share same paths and filenames. This is
> actually getting more and more complex as I think about it. 

:)

Would it be possible for libmariadbclient-dev to install its files
into /usr/include/mariadb/ etc. instead of /usr/include/mysql/ ?

> Anyway,
> MariaDB is now in Debian side-by-side with MySQL. Feel free to design
> a way to use it, you might have a better take on this challenge than
> what I do, at least for the moment.

While we can find a solution for our nice little perl package(s), I
think this needs to be clarified at a higher level first. Otherwise
we end up with tons of home-grown ad hoc solutions ...


Cheers,
gregor

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