first pass at making DB use basic integral types (the Alpha port)

don't try and put the page if __rec_search fails!!
From: Paul Kranenburg <pk@cs.few.eur.nl>

if DB_LOCK not set, pin page across calls and don't copy key/data pair

4.4BSD snapshot (revision 8.1); add 1993 to copyright

break BTF flags up into btree/recno (B_, R_) categories

bcmp/bcopy/bzero -> memcmp/memmove/memset

index_t -> indx_t

move db.h to the end of the includes, make compat.h work better

test for initialization of the cursor before deleting what it refs
deleting the cursor changes it, so the test is for no more records
no need to set the BTF_DELCRSR flag, just decrement the cursor

decrement record count in rec_dleaf, where the delete is really done

redo cursor deletion; specify delete to __rec_search, don't do parent
decrements here any more; minor cleanups

Rev #2. Redo the btree code add recno's and checkpoint