[fpc-devel] MySQL v4.0 v4.1 and v5.0
jesusrmx at yahoo.com.mx
Thu Nov 17 19:41:36 CET 2005
--- Vincent Snijders <vsnijders at quicknet.nl> escribió:
> Joost van der Sluis wrote:
> > Hi all,
> > atm I have a nearly finished mysql.inc file that can be used with
> > v4.0 v4.1 and v5.0. Loaded dynamically and static.
> > It uses several defines to set the right MySQL version and to
> turn the
> > dynamically linking on or off.
> > Create 6 different units in packages/base/mysql - for each
> > one? (thus mysql40, mysql40dyn, mysql41, mysql41dyn, mysql50 and
> > mysql51dyn?)
> > But then, what to do with the MySQL-connection for sqldb? In
> > the only thing that has to be changes to use another
> MySQL-version is to
> > change the used unit. So, always use the TMysqlConn-component,
> > changes the usage-clausule.
> > But how can this be handled by Lazarus? With the SQLDB-package
> only one
> > unit can be used. (Or else multiple types with the same name are
> > defined) Let the users manually change the usage-line if they
> want to
> > use a different MySQL-library-version?
> FOr the sqldb package, let them add a define to the compiler
> That seems more user friendly than editing the uses clause.
> In the source, change the uses clause, depending on the defines.
For mysql connection I would prefer an component for each version so
users have it clear from begining, and not need to change anything.
Jesus Reyes A.
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