case TZS:
#ifdef HAVE_ARCHIVE_WRITE_ADD_FILTER_ZSTD
if (archive_write_add_filter_zstd(a) == ARCHIVE_OK) {
if (archive_write_set_filter_option(a, NULL, "compression-level", "19") != ARCHIVE_OK) {
if (archive_write_set_filter_option(a, NULL, "compression-level", "20") != ARCHIVE_OK) {
pkg_emit_error("bad compression-level");
}
return ("tzst");