>> www/htdig complains that db1 is not accepted for building it.
>> Is there something wrong with bdb.buildlink3.mk or htdig's Makefile?
>
> The htdig Makefile only lists db2 in BDB_ACCEPTED.  If you know that it
> should build with db1 as well, then it seems that should really say
>
> 	BDB_ACCEPTED=	db1 db2

It seems like the pkgsrc cannot find db2 and build it / depend on it.
htdig relies only on db2 (which is, in fact, in databases/db)

Cheers,
Adam