status.i4.v = bpm_link_file_c(file_number.i4.v, link_to.s.r)

	This routine links the BPM file specified by the file number
	argument to another file so that they can be retrieved in
	the future as a set.  The master file used is the last one set
	by a call to bpm_set_save_file or set by default by bpm_machine_c.

	file_number	number of file to link to another file
			(starts at 1)
	link_to		file to link to
			(BPM_FILE_LINK_INFO structure)

	This function returns ACNET status values as follows:

	OK			success
	CBS_INVARG		invalid file number or file specification passed
	CBS_NO_SUCH		one of the files doesn't exist
	SQL_xxx			database error

	This function requires the following include files:

	ul_cbsaux/bpmuti.h, acnet_errors_h

	Related functions:

	bpm_unlink_file_c, bpm_file_link_info_c, bpm_next_unlinked_file_c,
	bpm_machine_c, bpm_get_save_file, bpm_get_default_save_file,
	bpm_set_save_file, bpm_rename_file_c, bpm_protect_file_c,
	bpm_file_menu_c, bpm_directory_info, bpm_find_oldest_file_number_c

	C/C++ usage:

	int		status;
	int		file_number = FILE_NUMBER;
	static const BPM_FILE_LINK_INFO	link_to = {"Tevatron", 1, BPM_TEVATRON};

	status = bpm_link_file_c(file_number,&link_to);