* Makefile.in (i386-nat.o): Update.

	* Makefile.in (i386-nat.o): Update.
	* amd64-linux-nat.c (_initialize_amd64_linux_nat): Call
	i386_use_watchpoints.
	* i386-linux-nat.c (_initialize_i386_linux_nat): Call
	i386_use_watchpoints.
	* i386-nat.c (i386_stopped_data_address): Take two arguments.
	(i386_stopped_by_watchpoint): Update call.
	(i386_can_use_hw_breakpoint, i386_use_watchpoints): New.
	* config/i386/nm-i386.h: Conditionalize definitions on
	! I386_WATCHPOINTS_IN_TARGET_VECTOR.
	(i386_use_watchpoints): Declare.
	(i386_stopped_data_address): Update.
	* config/i386/nm-linux.h (I386_WATCHPOINTS_IN_TARGET_VECTOR): Define.
	* config/i386/nm-linux64.h (I386_WATCHPOINTS_IN_TARGET_VECTOR): Define.