Original patch by Tom Tromey <tromey@cygnus.com> and

	Original patch by Tom Tromey <tromey@cygnus.com> and
	Jason Molenda <jmolenda@apple.com>.
	* Makefile.in (PROFILE_CFLAGS): Substitute from configure.
	(INTERNAL_LDFLAGS): Don't include PROFILE_CFLAGS.
	* NEWS: Mention profiling.
	* configure.in (--enable-gdbtk): Fix typo.
	(--enable-profiling): New.  Set PROFILE_CFLAGS.
	* maint.c (maintenance_set_profile_cmd): Remove NOTYET.
	Fill in function.
	(profiling_state): New variable.
	(mcleanup_wrapper): New function.
	(_initialize_maint): Remove NOTYET, fix call to
	add_setshow_boolean_cmd for "maint set profile".
	* configure: Regenerated.