neptune ~ # ls /usr/lib/libdb*
/usr/lib/libdb-4.5.a      /usr/lib/libdb.a          /usr/lib/libdb_cxx-4.5.la /usr/lib/libdb_cxx.so
/usr/lib/libdb-4.5.la     /usr/lib/libdb.so         /usr/lib/libdb_cxx-4.5.so
/usr/lib/libdb-4.5.so     /usr/lib/libdb_cxx-4.5.a  /usr/lib/libdb_cxx.a
neptune ~ # ls /usr/include/db*
/usr/include/db.h

/usr/include/db4.5:
db.h     db_185.h db_cxx.h
neptune ~ # ls -lah /usr/include/db* && ls -lah /usr/lib/libdb*
-r--r--r--  1 root  wheel   7.6K Apr 22 22:04 /usr/include/db.h

/usr/include/db4.5:
total 304
drwxr-xr-x   2 root  wheel   512B Apr 25 17:31 .
drwxr-xr-x  55 root  wheel   5.0K Apr 25 17:35 ..
-r--r--r--   1 root  wheel   100K Apr 25 17:31 db.h
-r--r--r--   1 root  wheel   5.9K Apr 25 17:31 db_185.h
-r--r--r--   1 root  wheel    36K Apr 25 17:31 db_cxx.h
-rw-r--r--  1 root  wheel   1.4M Apr 25 17:31 /usr/lib/libdb-4.5.a
-rw-r--r--  1 root  wheel   790B Apr 25 17:31 /usr/lib/libdb-4.5.la
-rwxr-xr-x  1 root  wheel   1.1M Apr 25 17:31 /usr/lib/libdb-4.5.so
lrwxr-xr-x  1 root  wheel    11B Apr 25 17:31 /usr/lib/libdb.a -> libdb-4.5.a
lrwxr-xr-x  1 root  wheel    12B Apr 25 17:31 /usr/lib/libdb.so -> libdb-4.5.so
-rw-r--r--  1 root  wheel   1.5M Apr 25 17:31 /usr/lib/libdb_cxx-4.5.a
-rw-r--r--  1 root  wheel   818B Apr 25 17:31 /usr/lib/libdb_cxx-4.5.la
-rwxr-xr-x  1 root  wheel   1.2M Apr 25 17:31 /usr/lib/libdb_cxx-4.5.so
lrwxr-xr-x  1 root  wheel    15B Apr 25 17:31 /usr/lib/libdb_cxx.a -> libdb_cxx-4.5.a
lrwxr-xr-x  1 root  wheel    16B Apr 25 17:31 /usr/lib/libdb_cxx.so -> libdb_cxx-4.5.so