[plt-scheme] latest way of getting to MySQL using MzScheme?

Hi,

I checked the Help Desk but nothing dropped out.

So, what's the latest way of getting to MySQL using MzScheme?  I've
seen mentioned of an ODBC thing ("SrPersist"?) and an sqli/spld.  These
suggest recompilations.  Is there anything built in, in a publicly
available lib, or SRFI?  Haven't found anything in the latter, but
still reading.

Thanks,

 - Jan