amglue_add_constant(F_UNKNOWN, filetype_t);
amglue_add_constant(F_WEIRD, filetype_t);
amglue_add_constant(F_TAPESTART, filetype_t);
amglue_add_constant(F_UNKNOWN, filetype_t);
amglue_add_constant(F_WEIRD, filetype_t);
amglue_add_constant(F_TAPESTART, filetype_t);