* config/i386/{i386aix.mh, i386bsd.mh, i386lynx.mh, i386sco.mh,

	* config/i386/{i386aix.mh, i386bsd.mh, i386lynx.mh, i386sco.mh,
	i386sco4.mh, i386sol2.mh, i386v.mh, i386v32.mh, i386v4.mh,
	ncr3000.mh, ptx.mh, ptx4.mh}, config/m68k/{altos.mh, apollo68v.mh,
	delta68.mh, dpx2.mh, hp300bsd.mh, hp300hpux.mh, m68klynx.mh,
	m68kv4.mh}, config/m88k/{delta88.mh, delta88v4.mh},
	config/mips/riscos.mh, config/pa/hppahpux.mh,
	config/sparc/{sparclynx.mh, sun4sol2.mh}, config/tahoe/tahoe.mh,
	config/vax/{vaxbsd.mh, vaxult.mh, vaxult2.mh} (REGEX, REGEX1,
	SYSV_DEFINE): No longer define.
	* config/i386/i386sco4.mh (MUNCH_DEFINE): No longer define.