Hmmm ... I did check the kobes repo ... perhaps the 5.6 repo by mistake.
Anyway, seems that DBD-DB2-1.79 is available for both 5.8 and 5.10 ... and there would no doubt very soon be a DBD-DB2 ppm package for 5.12 at
http://cpan.uwinnipeg.ca/PPMPackages/12xx/ had not Randy passed away in the latter part of last year.
It should, of course, still be possible to build (for perl 5.12) that version of DBD::DB2 against whichever version of DB2 it was that Randy had.
Unfortunately, it seems to me that
they want money for their oh-so-precious library ... and I'm certainly not prepared to fork out for a copy.
However, if the OP has a copy of that library, then I'm sure I/we can help out as regards getting DBD::DB2 built. We just need more information on the OP's problem.
What did 'perl Makefile.PL' output ?
Also, since we know that 1.79 builds on Windows, it's probably best to concentrate on getting that version built
Cheers,
Rob