remove mpool_getf

Merge the recursive tree traversal changes from the mit kerberos tree. This
Also make the tracefile customizable. Unfortunately we can't merge any of
the hash changes because they have a different on-disk format. That does not
matter really because we've fixed most of the problems...

don't shortcut closing if the metadata is dirty (from the krb5 tree)

branches: 1.14.6; 1.14.44;
Consistently include "nbtool_config.h" when cross-compiling.

In preparation for providing a db fallback in libnbcompat, remove
sccsid and conditionals around __RCSID. lint understands __RCSID enough
to ignore it, undefining LIBC_SCCS is superseded by MKSTRIPIDENT.
No functional changes.

branches: 1.12.12;
cleanup:
- remove __P
- remove unneeded casts
- add _DIAGASSERT
- add more diagnostics for integer overflow
- fix size_t/int confusion
- make debugging and statistics code compile

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

Don't pull in <sys/param.h> if we don't have to.

branches: 1.9.14;
If port provides __weak_alias(), provide an Standard C and POSIX pure
identifier namespace by renaming non standard functions and variables
such that they have a leading underscore. The library will use those
names internally. Weak aliases are used to provide the original names
to the API.

This is only the first part of this change. It is most of the functions
which are implemented in C for all NetBSD ports. Subsequent changes are
to add the same support to the remaining C files, to assembly files, and
to the automagically generated assembly source used for system calls.
When all of the above is done, ports with weak alias support should add
a definition for __weak_alias to <sys/cdefs.h>.

Fix RCSID's
Fix gcc warnings.

branches: 1.7.2;
merge DB 1.85 changes

add unintrusive Ids

branches: 1.5.2; 1.5.4;
clean up import

upgrade new DB code to version 1.7

Declare rcsid strings so they are stored in text segment.

Add RCS identifiers.

branches: 1.1.1;
update db code to v1.6 from vangogh, and put it in "db" rather than "DB"