2000-03-22 Elena Zannoni <ezannoni@kwikemart.cygnus.com>

2000-03-22  Elena Zannoni  <ezannoni@kwikemart.cygnus.com>

        From  Philippe De Muyter  <phdm@macqel.be>

	* event-loop.c (sys/types.h): File now included unconditionally.
	(use_poll): New variable..
	(gdb_notifier): poll- and select-versions merged.
	(add_file_handler): If HAVE_POLL, check whether poll is usable,
	and reset `use_poll' if not.
	(create_file_handler): Select poll- or select-version according to
	`use_poll'.
	(delete_file_handler, handle_file_event): Likewise.
	(gdb_wait_for_event, poll_timers): Likewise.