I need to be able to connect to a netcool database ( Sybase based ) using perl. I would like to use DBI and NOT Sybperl by linking to standard sybase client libraries ( not freetds OR part of the netcool install). Is this possible to do this or do I have to build perl against:

a. freetds OR
b. The client libraries in the netcool insall ( if so HOW? )

If it's not possible to use DBI, then I would begrudgenly use Sybase:Tlib. If this has to be used, then which libraries to I have to build against? It seems most people end up using freetds ( may not be able to use due to policy ) and Sybase:Tlib ( interface is not as easy to use compared to the DBI interface).