extern tfc_yesno do_preserve_time, do_stats_in_gibs, do_statline_dynamic, do_less_stats;
extern tfc_yesno no_repeat, do_full_hexdump, verbose, statline_was_shown, show_secrets;
extern char *srcfname, *dstfname, *do_mac_file, *counter_file, *sksum_hashlist_file;
extern char *saltf, *genkeyf, *mackeyf, *tweakf;
extern char *pw_prompt, *mac_pw_prompt;
extern tfc_useconds status_timer, bench_timer;
extern tfc_yesno do_preserve_time, do_stats_in_gibs, do_statline_dynamic, do_less_stats;
extern tfc_yesno no_repeat, do_full_hexdump, verbose, statline_was_shown, show_secrets;
extern char *srcfname, *dstfname, *do_mac_file, *counter_file, *sksum_hashlist_file;
extern char *saltf, *genkeyf, *mackeyf, *tweakf;
extern char *pw_prompt, *mac_pw_prompt;
extern tfc_useconds status_timer, bench_timer;