*should* be intelligent enough that:

#if defined(__FreeBSD__) works, where __FreeBSD__ is actually defined
by the compiler itself.

Makefile.global used to have -DPORTNAME_<port> -D<port> as part of the flags
for gcc while all occurances of PORTNAME_<port> slowly get removed from
the source tree...

Added needed include file.

features(?) are available

config.h file

Further ports should *really* avoid backend/port and make use of
config.h

	NAMEDATALEN
	OIDDATALEN
	EUROPEAN_DATES
	HBA
	DEADLOCK_TIMEOUT
	OPENLINK_PATCHES
	NULL_PATCH
	ARRAY_PATCH

Attempting to document and centralize as many of the "defines" as possible...
kinda useless to have defines if nobody knows they exist, eh?

hopefully this sort of thing can eventually be determined using configure?

Grouped some PORTNAME's for SEMUN.

in twice...

define to config.h

platform with a machine.h has the same BLCKSZ?

Consolidate machine.h into config.h

to be one helluva chore to clean up...