Bug#335455: subversion fails to build with libdb4.3-dev

[Florian Weimer]

* Adam Conrad:

> As for rebuilding with libdb4.3, I've committed the changes required to
> do this to SVN, and tested packages, and they seem fine.  Someone should
> probably write a nice NEWS.Debian entry telling people that they need to
> do repository upgrades of one sort or another (dump/load, likely), since
> DB version bumps are... Bumpy.

Actually, they aren't, if you know how to do them.  Basically, the
required steps are:

  1) Install the db4.2-util and db4.3-util packages.

  2) Terminate all processes that may access the Subversion repository
     (Apache, svnserve, inetd).  If necessary, enter single-user mode
     to be sure.

  3) Install the new Subversion package.

  4) For each Subversion repository which uses the BDB backend, repeat
     the following steps:

       a) Change to the "db" subdirectory of the repository.

       b) Invoke "db4.2_checkpoint -1 -h .".

       c) Invoke "db4.2_archive -d -h .".

       d) Invoke "db4.2_recover -h .".

       e) Invoke "db4.3_recover -e -h .".

     This assumes that you do not perform log-file archival.  If you
     do, you need to archive them before step c), and perform a full
     database backup after d).

  5) Bring up the system again.

Come to think of it, svnadmin dump/svnadmin create/svnadmin load is
probably easier, although you can hardly avoid the single-user
requirement.

(4b and 4c are mainly a speed optimization, so that less work is
required in 4d.)