Sean Chittenden thinks he wrote:

>> I'm trying to make ruby dbi work. I searched around, but could not
>> find an answer to this, so please forgive me if you've heard this
>> one before...
>> 
>> I get the following error when trying to run my script (with eruby,
>> the script is supposed to be called from an rhtml page):
>> 
>> /usr/lib/ruby/site_ruby/1.6/dbi/dbi.rb:434:in `load_driver': Could not
>> load driver (uninitialized constant Mysql at DBI::DBD)
>> (DBI::InterfaceError)
>>         from /usr/lib/ruby/site_ruby/1.6/dbi/dbi.rb:349:in
>> `_get_full_driver'
>>         from /usr/lib/ruby/site_ruby/1.6/dbi/dbi.rb:329:in `connect'
>>         from ./pgmkr.rb:125:in `db_connect'
>> 
>> The offending line is:
>> @dbh = DBI.connect(datasrc, usr, pwd)
>> 
>> This is my ruby version:
>> ruby 1.6.6 (2001-12-26) [i586-linux-gnu]
>> 
>> This file exists:
>> /usr/lib/ruby/site_ruby/1.6/DBD/Mysql/Mysql.rb
> 
> It looks like you have an incomplete installation of DBI.  You need
> the mysql bindings, and you also need the DBD interface to wrap it, so
> technically you need three components.  The various DBD's are often
> times installed automagically for you by the DBI installation or by
> the port (if you use FreeBSD), however you can't always assume that.
> Once you get that fixed, I think you'll be all good to go.  -sc
> 

Thanks. I got it working. If you install from the distro's RPMs, Mandrake 
8.2 puts mysql files in /usr/include and /usr/lib instead of /usr/local, so 
to configure the MySQL Ruby module you have to use the 
'--with-mysql-dir=/usr' argument to extconf.rb. Then, it will work.