troubles with refint.c

Hi,

I try to use OID for primary key in my database...
for this, i use refint.c to check referential integrity !

But check_foreign_key() and check_primary_key()
 don't "see" OID column...
 
I really need to use OID for primary key...
What can i do ?
I don't know exactly how to hack refint.c

All ideas will be welcome....

Thanks,              flash