* inftarg.c (child_ops): Don't initialize statically.

	* inftarg.c (child_ops): Don't initialize statically.
	(init_child_ops): New function, fills in child_ops.
	(_initialize_inftarg): Use it.
	(child_post_attach): Declare extern.
	(child_wait): Fix ambiguous parens.
	(child_attach_to_process): Remove unused local wstatus.
	(child_insert_fork_catchpoint, child_remove_fork_catchpoint,
	child_insert_vfork_catchpoint, child_remove_vfork_catchpoint,
	child_has_forked, child_insert_exec_catchpoint,
	child_remove_exec_catchpoint): Return a value.