what is the best way to remove a program?

[Matthew Seaman]

Pieter de Goeje wrote:

> This will replace mysql50-client with mysql51-client and reinstall all ports 
> depending on mysql50-client ("-rf"), so they will use the new version. In this 
> case the last step probably isn't necessary because the libraries are (mostly 
> I think) compatible, but in general it is recommended.

Rebuilding all dependents when upgrading from mysql50 to mysql51 is absolutely
required.  mysql50-client installs ${LOCALBASE}/lib/mysql/libmysqlclient.so.15
whereas mysql51-client installs ${LOCALBASE}/lib/mysql/libmysqlclient.so.16
-- note the changed ABI version number.  Unless you use portupgrade(1) 
or save a copy of the old shlib by other means, anything that linked against
libmysqlclient would be rendered inoperable by the change, and must at least be
re-linked.  Yes, the APIs have not changed, but APIs are a matter for programmers
at the time of writing the source code -- once compiled, it's the ABI that counts.

	Cheers,

	Matthew

-- 
Dr Matthew J Seaman MA, D.Phil.                   7 Priory Courtyard
                                                  Flat 3
PGP: http://www.infracaninophile.co.uk/pgpkey     Ramsgate
                                                  Kent, CT11 9PW

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