IPv6 support

Sybase SDK version 15.5 on HP HP-UX platforms support IPv6.

This is a sample interfaces file entry:

BARNARD_OS
   master tcp ether barnards.sybase.com 18200
   query tcp ether barnards.sybase.com 18200
   master tcp ether barnards.v6.sybase.com 18200
   query tcp ether barnards.v6.sybase.com 18200
   master tcp ether
     fd77:55d:59d9:165:203:baff:fe68:aa12 18200
   query tcp ether
     fd77:55d:59d9:165:203:baff:fe68:aa12 18200

NoteAll master and query lines in the interfaces file must begin with a tab.