* README: Remove note about gcc warnings on alpha, these should be

	* README:  Remove note about gcc warnings on alpha, these should be
	gone now.
	* c-exp.y, ch-exp.y, core.c, corelow.c, eval.c, fork-child.c,
	m2-exp.y, minsyms.c, nlmread.c, parse.c, putenv.c, regex.c
	remote-utils.c, stabsread.c:  Include <string.h>.
	* regex.c:  Include "defs.h", change re_comp argument to const char *.
	* infptrace.c (fetch_register, store_inferior_registers):  Change
	regaddr to type CORE_ADDR.
	* config/alpha/alpha-nw.mt, config/alpha/alpha-osf1.mt (MT_CFLAGS):
	Remove, no longer necessary now that we use bfd_vma for a CORE_ADDR.