port/segment.c		1991/0705		Created.
		1991/0706
		1991/0710
		1991/0724
		1991/0726
		1991/0731
		1991/0803
		1991/0830
		1991/1005
		1991/1024
		1991/1105
		1991/1109
		1991/1115
		1991/1122
		1991/1125
		1991/1219
		1992/0111		Move error.h to ../port. Change errors to actual strings.
		1992/0114
		1992/0120
		1992/0225
		1992/0307
		1992/0310
		1992/0314
		1992/0321		Move lib.h to ../port.
		1992/0404
		1992/0430
		1992/0520
		1992/0619
		1992/0621
		1992/0625
		1992/0711
		1992/0721
		1992/0822
		1992/0824
		1992/0912
		1992/1104
		1992/1206
		1993/0120
		1993/0210
		1993/0501
		1993/0507
		1993/0725
		1993/0810
		1993/0903
		1993/0904
		1993/0919
		1993/0930
		1993/1001
		1993/1012
		1994/0514
		1994/0515		Whitespace edit.
		1994/0602
		1994/0817
		1995/0804
		1996/0207
		1996/0303
		1996/0528
		1997/0327
		1997/0516
		1998/0326		Mark imagereclaim, imagechanreclaim static. Remove prototypes for non-existent lkpage, lkpgfree.
		1998/0512		Whitespace edit.
		1998/0724
		1998/0725
		1998/0823		Bug fix: can dereference nil.
		1998/0916
		1998/0919
		1998/1107
		1999/0120
		1999/1007
		2000/0229
		2000/0714
		2000/1012
		2001/0314
		2001/0424
		2001/0503
		2001/0507
		2001/0508
		2001/0527
		2002/0329
		2002/0330
		2002/0420
		2002/0924