int opt_index;
notmuch_opt_desc_t options[] = {
{ NOTMUCH_OPT_STRING, &backup_path, "backup", 0, 0 },
{ NOTMUCH_OPT_BOOLEAN, &quiet, "quiet", 'q', 0 },
int opt_index;
notmuch_opt_desc_t options[] = {
{ NOTMUCH_OPT_STRING, &backup_path, "backup", 0, 0 },
{ NOTMUCH_OPT_BOOLEAN, &quiet, "quiet", 'q', 0 },